Bottles Wholesale Pet Bottle Manufacturers, Custom Pet Bottles, Pet Bottles suppliers.
m
So according to the bottle contents were to determine the size of the bottle portion. Parison neck size determine when the blow mold cavity dimensions and should be considered contraction after molding bottles, PET bottle blow air pressure inside the parison is 1.2MPa, the use of 5 ~ 10 ℃ cooling water cooling blow mold, the parison after blow to the rapid cooling. 5, bottle injection blow molding mandrel features
Injection blow molding mandrel function used mainly in five areas: (1) determine the shape of the inner diameter of the bottle neck forming the parison (2) in mechanical indexing process to take away the parison or bottle; ( 3) a mandrel provided with airway with air entrances, delivery of compressed air to inflate the parison; (4) inside the mandrel can pass circulating liquid or air, in order to adjust the temperature of the parison; (5) at the rear near the mandrel with 0.10 mm deep open side of the groove, so that the ends of the parison wedging groove, avoid blow station go to the parison forming station from the process, the parison its elastic shrinking lead to neck screw dislocation. Seal grooves play a role in reducing leakage during blow compressed air. 6, choose the value of length to diameter mandrel
Length and diameter of the mandrel is mainly determined by the parison, the mandrel diameter than the inner diameter of the bottle neck smaller, easy to release the bottle. But mandrel diameter should take large values ??as much as possible within the scope of the bottleneck inner diameter in order to avoid excessive blow-up ratio. Coaxial mandrel diameter should be within 0.05 to 0.08 mm. Bottle parts mandrel diameter is the outer diameter of the bottle and the bottle on the thickness, the range is usually dark green bottle bottle rod diameter equal to the outer diameter minus twice the wall thickness of the bottle.
Made by: http://www.petbottlemanufacturers.co
2015年7月31日星期五
2015年7月29日星期三
Sauce Bottles
Plastic Bottle Cap Manufacturers, Custom Pet Bottles, Pet Bottles suppliers.
Made by: https://www.plastic-bottle-manufacturers.com/plastic-bottle-cap-manufacturers/
During the drying process, due to the high temperature polyester drying hopper equipment should have good thermal insulation properties and the use of glass fiber insulation, should avoid contact with the dry polyester raw materials and outside air, because polyester raw material will rapidly absorb moisture from the air. For example, the polyester raw material is completely dried and a relative humidity of 35% to 40% after 12min of exposure to air, i.e., a moisture content of 0.005%. Medicinal PET bottle molding method
PET bottle molding methods are extrusion blow molding and injection blow molding two processes. Stretch blow another one-step and two-step process of the points. In the one-step molding, parison molding, cooling, heating, stretching were taken in order to complete the blow and bottle on a machine. Rule two steps by extrusion or injection molding the parison, and the parison was cooled to room temperature, becoming semi-finished products, and then the parison is reheated and stretch blow molding machine become bottle. That parison molding, stretch blow molding is done on the two machines, respectively. One-step injection blow molding PET bottles, injection blow molding equipment requires two molds that parison injection mold and blow mold. The injection molded preform is mainly composed of the parison mold cavity and the mandrel, its parameters are chosen size of each part is correct or not is the key to whether the shape of the bottle. Therefore, the size of the mold preform molding process parameters combined with a reasonable selection. 1, the ratio of the height of its neck PET bottle thread diameter of the mandrel can be determined parison aspect ratio (L / D)
Mandrel aspect ratio generally ranging principle is no more than 10: 1. This is because the parison mold mandrel as a cantilever, and by the effect of high injection pressure during filling. Selected aspect ratio is larger, its larger mandrel bent, likely to cause the parison wall thickness distribution is uneven.
Made by: https://www.plastic-bottle-manufacturers.com/plastic-bottle-cap-manufacturers/
During the drying process, due to the high temperature polyester drying hopper equipment should have good thermal insulation properties and the use of glass fiber insulation, should avoid contact with the dry polyester raw materials and outside air, because polyester raw material will rapidly absorb moisture from the air. For example, the polyester raw material is completely dried and a relative humidity of 35% to 40% after 12min of exposure to air, i.e., a moisture content of 0.005%. Medicinal PET bottle molding method
PET bottle molding methods are extrusion blow molding and injection blow molding two processes. Stretch blow another one-step and two-step process of the points. In the one-step molding, parison molding, cooling, heating, stretching were taken in order to complete the blow and bottle on a machine. Rule two steps by extrusion or injection molding the parison, and the parison was cooled to room temperature, becoming semi-finished products, and then the parison is reheated and stretch blow molding machine become bottle. That parison molding, stretch blow molding is done on the two machines, respectively. One-step injection blow molding PET bottles, injection blow molding equipment requires two molds that parison injection mold and blow mold. The injection molded preform is mainly composed of the parison mold cavity and the mandrel, its parameters are chosen size of each part is correct or not is the key to whether the shape of the bottle. Therefore, the size of the mold preform molding process parameters combined with a reasonable selection. 1, the ratio of the height of its neck PET bottle thread diameter of the mandrel can be determined parison aspect ratio (L / D)
Mandrel aspect ratio generally ranging principle is no more than 10: 1. This is because the parison mold mandrel as a cantilever, and by the effect of high injection pressure during filling. Selected aspect ratio is larger, its larger mandrel bent, likely to cause the parison wall thickness distribution is uneven.
2015年7月28日星期二
Glass Manufacturers
Glass Manufacturers Pet Bottle Manufacturers, Custom Pet Bottles, Pet Bottles suppliers.
Made by: http://www.petbottlemanufacturers.com
Polyester (PET) bottles blow for raw materials for the saturated linear thermoplastic polyester, mainly used performance indicators are: the intrinsic viscosity (IV) should be controlled at 70 ~ 85ml / g, making blow molded bottles with high mechanical strength and transparency; for large volume (greater than 2 liters) of the bottle, the selection of an intrinsic viscosity of polyester raw materials 70 ~ 75ml / g. Injection blow molding bottle Preferred pharmaceutically acceptable small volume higher intrinsic viscosity index is preferably a material production. Since the variety of raw materials selection is correct or not, related to the merits of the selection and quality of bottle production process molding process parameters. Thus, in the production of medicinal PET bottles, intrinsic viscosity of the raw materials, the crystallization temperature, cooling rate, and other process data alignment effect is particularly important. This is because the polyester material is a crystallizable polymer, the crystallization rate is small, only 6μm / min (max). Through process control crystallization conditions such as temperature and cooling rate, the polyester bottle into a non-crystalline or crystalline, and can change the crystal type and quantity. Crystallinity of the polyester requirements generally about 30%. At or slightly above the glass transition temperature slightly below the melting point, the crystallization rate of the polyester is small, crystallization takes a long time, at a temperature of about 175 ℃, the crystallization time is much shorter. In short, only by heating a crystalline polyester, the crystallization process is slow, it is possible to form a larger spherulite crystal, which refracts the light, so that white goods, and brittleness. Furthermore, with increasing the crystallization rate of the polyester decreases their Ⅳ. Ordered molecular orientation of the polyester can promote crystallization, the formed crystals called strain-induced crystalline, the grain is small, the light is not refracted, so oriented polyester article is transparent.
Made by: http://www.petbottlemanufacturers.com
Polyester (PET) bottles blow for raw materials for the saturated linear thermoplastic polyester, mainly used performance indicators are: the intrinsic viscosity (IV) should be controlled at 70 ~ 85ml / g, making blow molded bottles with high mechanical strength and transparency; for large volume (greater than 2 liters) of the bottle, the selection of an intrinsic viscosity of polyester raw materials 70 ~ 75ml / g. Injection blow molding bottle Preferred pharmaceutically acceptable small volume higher intrinsic viscosity index is preferably a material production. Since the variety of raw materials selection is correct or not, related to the merits of the selection and quality of bottle production process molding process parameters. Thus, in the production of medicinal PET bottles, intrinsic viscosity of the raw materials, the crystallization temperature, cooling rate, and other process data alignment effect is particularly important. This is because the polyester material is a crystallizable polymer, the crystallization rate is small, only 6μm / min (max). Through process control crystallization conditions such as temperature and cooling rate, the polyester bottle into a non-crystalline or crystalline, and can change the crystal type and quantity. Crystallinity of the polyester requirements generally about 30%. At or slightly above the glass transition temperature slightly below the melting point, the crystallization rate of the polyester is small, crystallization takes a long time, at a temperature of about 175 ℃, the crystallization time is much shorter. In short, only by heating a crystalline polyester, the crystallization process is slow, it is possible to form a larger spherulite crystal, which refracts the light, so that white goods, and brittleness. Furthermore, with increasing the crystallization rate of the polyester decreases their Ⅳ. Ordered molecular orientation of the polyester can promote crystallization, the formed crystals called strain-induced crystalline, the grain is small, the light is not refracted, so oriented polyester article is transparent.
2015年7月27日星期一
Glass Spray Bottles
Custom Plastic Water Bottles, Custom Pet Bottles, Pet Bottles suppliers.
Made by: http://www.plastic-bottle-manufacturers.com
Mainly used performance indicators are: the intrinsic viscosity (IV) should be controlled at 70 ~ 85ml / g, making blow molded bottles with high mechanical strength and transparency; for large volume (greater than 2 liters) of the bottle, the selection of an intrinsic viscosity of polyester raw materials 70 ~ 75ml / g. Injection blow molding bottle Preferred pharmaceutically acceptable small volume higher intrinsic viscosity index is preferably a material production. Since the variety of raw materials selection is correct or not, related to the merits of the selection and quality of bottle production process molding process parameters. Thus, in the production of medicinal PET bottles, intrinsic viscosity of the raw materials, the crystallization temperature, cooling rate, and other process data alignment effect is particularly important. This is because the polyester material is a crystallizable polymer, the crystallization rate is small, only 6μm / min (max). Through process control crystallization conditions such as temperature and cooling rate, the polyester bottle into a non-crystalline or crystalline, and can change the crystal type and quantity. Crystallinity of the polyester requirements generally about 30%. At or slightly above the glass transition temperature slightly below the melting point, the crystallization rate of the polyester is small, crystallization takes a long time, at a temperature of about 175 ℃, the crystallization time is much shorter. In short, only by heating a crystalline polyester, the crystallization process is slow, it is possible to form a larger spherulite crystal, which refracts the light, so that white goods, and brittleness. Furthermore, with increasing the crystallization rate of the polyester decreases their Ⅳ. Ordered molecular orientation of the polyester can promote crystallization, the formed crystals called strain-induced crystalline, the grain is small, the light is not refracted, so oriented polyester article is transparent. If the sample of polyester partially crystalline orientation as heat setting to make further crystallized sample remains transparent. Therefore, the crystal orientation of the impact and stretch blow molding of PET bottles during the key factor to ensure performance. If the hot filling of bottles with bar-type sterilization, but also on the part of the crystalline polyester for heat setting, the further crystallization so in order to improve heat resistance. 2, polyester material dehumidifying and drying。
Made by: http://www.plastic-bottle-manufacturers.com
Mainly used performance indicators are: the intrinsic viscosity (IV) should be controlled at 70 ~ 85ml / g, making blow molded bottles with high mechanical strength and transparency; for large volume (greater than 2 liters) of the bottle, the selection of an intrinsic viscosity of polyester raw materials 70 ~ 75ml / g. Injection blow molding bottle Preferred pharmaceutically acceptable small volume higher intrinsic viscosity index is preferably a material production. Since the variety of raw materials selection is correct or not, related to the merits of the selection and quality of bottle production process molding process parameters. Thus, in the production of medicinal PET bottles, intrinsic viscosity of the raw materials, the crystallization temperature, cooling rate, and other process data alignment effect is particularly important. This is because the polyester material is a crystallizable polymer, the crystallization rate is small, only 6μm / min (max). Through process control crystallization conditions such as temperature and cooling rate, the polyester bottle into a non-crystalline or crystalline, and can change the crystal type and quantity. Crystallinity of the polyester requirements generally about 30%. At or slightly above the glass transition temperature slightly below the melting point, the crystallization rate of the polyester is small, crystallization takes a long time, at a temperature of about 175 ℃, the crystallization time is much shorter. In short, only by heating a crystalline polyester, the crystallization process is slow, it is possible to form a larger spherulite crystal, which refracts the light, so that white goods, and brittleness. Furthermore, with increasing the crystallization rate of the polyester decreases their Ⅳ. Ordered molecular orientation of the polyester can promote crystallization, the formed crystals called strain-induced crystalline, the grain is small, the light is not refracted, so oriented polyester article is transparent. If the sample of polyester partially crystalline orientation as heat setting to make further crystallized sample remains transparent. Therefore, the crystal orientation of the impact and stretch blow molding of PET bottles during the key factor to ensure performance. If the hot filling of bottles with bar-type sterilization, but also on the part of the crystalline polyester for heat setting, the further crystallization so in order to improve heat resistance. 2, polyester material dehumidifying and drying。
2015年7月26日星期日
Pet Bottle Company
Custom Made Plastic Bottles, Custom Pet Bottles, Pet Bottles suppliers.
Made by: https://www.plastic-bottle-manufacturers.com
2.1 Preform
The preparation of blow molded bottles, PET chips first injection molded preforms, it requires twice the proportion of recycled material is not too high (5%), the recovery can not be more than twice the number of times, but not too low molecular weight and viscosity (molecular weight 31000- 50,000, intrinsic viscosity 0.78-0.85cm3 / g). Injection molded preform should be stored for more than 48h before using. After heating did not run out of preforms must then be stored for more than 48h before being reheated to use. Preform storage time should not exceed six months.
Preform depends largely on the merits of the merits of PET materials should be selected easy to blow, easy stereotypes of material, and develop a reasonable preform molding process. Experimental results show that the viscosity of the same material molding PET preforms, imported raw materials than domestic Yi blow molding; and the same batch of preforms, production dates are different, the blow molding process may also be quite different. Preform the merits of the decision to ease the blow molding process, the requirements of the preform is pure, transparent, free of impurities, the same color, length and injection points around coronatines appropriate. 2.2 heating
Preform is heated by the heating oven to complete, the temperature is set manually, automatically adjusted. Emit far infrared oven heated by the far infrared radiation preform tube, the bottom of the oven fan heat circulation, so the oven temperature uniformity. Preform in the oven at the same time moves forward rotation, so preform wall heat evenly.
Lamps arranged in an oven from top to bottom general was "zone" shape, more than two and less in the middle. Heat the oven by opening the number of lamps, the overall temperature setting, and each section was heated oven power than joint control. The lamp is turned in conjunction with the pre-blowing to be adjusted.
To play a better role oven, adjust its height, the cooling plate, etc. is very important, if adjusted properly, prone to swelling during blow bottle (bottle large), a hard head and neck (neck material will not pull out), etc. defects.
Made by: https://www.plastic-bottle-manufacturers.com
2.1 Preform
The preparation of blow molded bottles, PET chips first injection molded preforms, it requires twice the proportion of recycled material is not too high (5%), the recovery can not be more than twice the number of times, but not too low molecular weight and viscosity (molecular weight 31000- 50,000, intrinsic viscosity 0.78-0.85cm3 / g). Injection molded preform should be stored for more than 48h before using. After heating did not run out of preforms must then be stored for more than 48h before being reheated to use. Preform storage time should not exceed six months.
Preform depends largely on the merits of the merits of PET materials should be selected easy to blow, easy stereotypes of material, and develop a reasonable preform molding process. Experimental results show that the viscosity of the same material molding PET preforms, imported raw materials than domestic Yi blow molding; and the same batch of preforms, production dates are different, the blow molding process may also be quite different. Preform the merits of the decision to ease the blow molding process, the requirements of the preform is pure, transparent, free of impurities, the same color, length and injection points around coronatines appropriate. 2.2 heating
Preform is heated by the heating oven to complete, the temperature is set manually, automatically adjusted. Emit far infrared oven heated by the far infrared radiation preform tube, the bottom of the oven fan heat circulation, so the oven temperature uniformity. Preform in the oven at the same time moves forward rotation, so preform wall heat evenly.
Lamps arranged in an oven from top to bottom general was "zone" shape, more than two and less in the middle. Heat the oven by opening the number of lamps, the overall temperature setting, and each section was heated oven power than joint control. The lamp is turned in conjunction with the pre-blowing to be adjusted.
To play a better role oven, adjust its height, the cooling plate, etc. is very important, if adjusted properly, prone to swelling during blow bottle (bottle large), a hard head and neck (neck material will not pull out), etc. defects.
2015年7月23日星期四
Glass Bottle Manufacturing Process
Plastic Spray Bottle Manufacturers, Custom Pet Bottles, Pet Bottles suppliers.
Made by: https://www.plastic-bottle-manufacturers.com
Injection molding preforms and bottle blow-up ratio of the value of
Small volume injection blow molding of PET bottles, in the process of molding process, the parison occurs mainly axial tension. The smaller axial tension, the greater the blow ratio (ratio refers to the diameter of the bottle and the parison diameter), the possibility of uneven thickness distribution of the bottle greater, could easily lead to the shoulder and the bottle or bottle bottle and the bottle the bottom curved areas of uneven thickness transition region. Small flask body blow ratio generally take between 1.5 to 1.8. On the cross-section of the bottle oval, if it is less than the ratio of the length that is oval ellipse minor axis ratio 1.5: 1, may be circular in cross section forming a parison. Elliptic is no more than 2: 1, can be circular in cross section and oval mandrel parison molding. Ellipse ratio greater than 2: 1, the general requirements mandrel and parison cavity are designed into an oval. Ellipse ratio increases, the difficulty of the parison mold design and manufacturing costs were increased, generally should not exceed 3: 1.
4, injection molding parison mouth and neck size
Parison mouth diameter and thread size bottle size should thread of unity, and to match the thread size caps. In this regard due to the current absence of a unified national standard, so according to the bottle contents were to determine the size of the bottle portion. Parison neck size determine when the blow mold cavity dimensions and should be considered contraction after molding bottles, PET bottle blow air pressure inside the parison is 1.2MPa, the use of 5 ~ 10 ℃ cooling water cooling blow mold, the parison after blow to the rapid cooling.
5, bottle injection blow molding mandrel features
Injection blow molding mandrel function used mainly in five areas: (1) determine the shape of the inner diameter of the bottle neck forming the parison (2) in mechanical indexing process to take away the parison or bottle; ( 3) a mandrel provided with airway with air entrances, delivery of compressed air to inflate the parison; (4) inside the mandrel can pass circulating liquid or air, in order to adjust the temperature of the parison; (5) at the rear near the mandrel with 0.10 mm deep open side of the groove, so that the ends of the parison wedging groove, avoid blow station go to the parison forming station from the process, the parison its elastic shrinking lead to neck screw dislocation. Seal grooves play a role in reducing leakage during blow compressed air.
Made by: https://www.plastic-bottle-manufacturers.com
Injection molding preforms and bottle blow-up ratio of the value of
Small volume injection blow molding of PET bottles, in the process of molding process, the parison occurs mainly axial tension. The smaller axial tension, the greater the blow ratio (ratio refers to the diameter of the bottle and the parison diameter), the possibility of uneven thickness distribution of the bottle greater, could easily lead to the shoulder and the bottle or bottle bottle and the bottle the bottom curved areas of uneven thickness transition region. Small flask body blow ratio generally take between 1.5 to 1.8. On the cross-section of the bottle oval, if it is less than the ratio of the length that is oval ellipse minor axis ratio 1.5: 1, may be circular in cross section forming a parison. Elliptic is no more than 2: 1, can be circular in cross section and oval mandrel parison molding. Ellipse ratio greater than 2: 1, the general requirements mandrel and parison cavity are designed into an oval. Ellipse ratio increases, the difficulty of the parison mold design and manufacturing costs were increased, generally should not exceed 3: 1.
4, injection molding parison mouth and neck size
Parison mouth diameter and thread size bottle size should thread of unity, and to match the thread size caps. In this regard due to the current absence of a unified national standard, so according to the bottle contents were to determine the size of the bottle portion. Parison neck size determine when the blow mold cavity dimensions and should be considered contraction after molding bottles, PET bottle blow air pressure inside the parison is 1.2MPa, the use of 5 ~ 10 ℃ cooling water cooling blow mold, the parison after blow to the rapid cooling.
5, bottle injection blow molding mandrel features
Injection blow molding mandrel function used mainly in five areas: (1) determine the shape of the inner diameter of the bottle neck forming the parison (2) in mechanical indexing process to take away the parison or bottle; ( 3) a mandrel provided with airway with air entrances, delivery of compressed air to inflate the parison; (4) inside the mandrel can pass circulating liquid or air, in order to adjust the temperature of the parison; (5) at the rear near the mandrel with 0.10 mm deep open side of the groove, so that the ends of the parison wedging groove, avoid blow station go to the parison forming station from the process, the parison its elastic shrinking lead to neck screw dislocation. Seal grooves play a role in reducing leakage during blow compressed air.
Plastic Bottle Manufacturing Machine
Plastic Bottle Cap Manufacturer, Custom Pet Bottles, Pet Bottles suppliers.
Made by: http://www.plastic-bottle-manufacturers.com
The ratio of the height of its neck PET bottle thread diameter of the mandrel can be determined parison aspect ratio (L / D)
Mandrel aspect ratio generally ranging principle is no more than 10: 1. This is because the parison mold mandrel as a cantilever, and by the effect of high injection pressure during filling. Selected aspect ratio is larger, its larger mandrel bent, likely to cause the parison wall thickness distribution is uneven. However, through the program to control the melt filling speed or filling process using a sliding thimble temporarily secured to the mandrel head end of the mandrel, the mandrel diameter ratio advisable at this great value. Parison reference height is the height of the bottle body height obtained by multiplying the coefficient, the height of the bottle is generally 92% to 95%. In order to ensure good transparency of the bottle, a melt parison mold after filling, the temperature was quickly lowered to less 145 ℃, but than the glass transition temperature of the polyester material (82 ℃) higher and closer to the glass temperature, the higher the transparency of blown bottles. Parison mold cooling water temperature up to 10 ℃ ~ 35 ℃, for rapid cooling of the parison, it will take a liquid or gas to the mandrel continuous cooling, where cool air mandrel can have a more uniform temperature distribution, the air pressure is generally about 1MPa.
2, the melt temperature of the preform during injection
????The melt temperature is an important parameter PET preform molding to note. From the viewpoint of equipment, screw design have a greater impact on the PET melt, mix and melt temperature. PET injection to the use of low shear, low compression ratio (about 2/1) of the screw, made longer feed section, a transition section and a metering section made shorter. Barrel temperature of the device a greater impact on the melt temperature, barrel temperature increase will reduce the intrinsic viscosity of the PET melt. Barrel temperature had a significant effect on the parison transparency, improve cylinder temperature can improve the transparency of the parison. For example, when a barrel temperature of 280 ℃, the corresponding melt temperature of 290 ℃, can ensure optimal transparency parison. The barrel temperature increase does not improve further transparency. Lower barrel temperatures, an appropriate increase in screw speed to clap gate temperature, small quantities can improve the transparency of the parison. However, due to the hot runner system melt through time is short, to a lesser extent the temperature of the parison transparency improvement. Increase the injection pressure, i.e., when the injection rate, the heat generated when high shear melt through the nozzle, the melt temperature is significantly improved, so that the barrel temperature can be lower transparent molded parison. Higher packing pressure will increase the rate of crystallization when cooling the melt parison mold, reducing the transparency of the parison, especially at lower cylinder temperature.
Made by: http://www.plastic-bottle-manufacturers.com
The ratio of the height of its neck PET bottle thread diameter of the mandrel can be determined parison aspect ratio (L / D)
Mandrel aspect ratio generally ranging principle is no more than 10: 1. This is because the parison mold mandrel as a cantilever, and by the effect of high injection pressure during filling. Selected aspect ratio is larger, its larger mandrel bent, likely to cause the parison wall thickness distribution is uneven. However, through the program to control the melt filling speed or filling process using a sliding thimble temporarily secured to the mandrel head end of the mandrel, the mandrel diameter ratio advisable at this great value. Parison reference height is the height of the bottle body height obtained by multiplying the coefficient, the height of the bottle is generally 92% to 95%. In order to ensure good transparency of the bottle, a melt parison mold after filling, the temperature was quickly lowered to less 145 ℃, but than the glass transition temperature of the polyester material (82 ℃) higher and closer to the glass temperature, the higher the transparency of blown bottles. Parison mold cooling water temperature up to 10 ℃ ~ 35 ℃, for rapid cooling of the parison, it will take a liquid or gas to the mandrel continuous cooling, where cool air mandrel can have a more uniform temperature distribution, the air pressure is generally about 1MPa.
2, the melt temperature of the preform during injection
????The melt temperature is an important parameter PET preform molding to note. From the viewpoint of equipment, screw design have a greater impact on the PET melt, mix and melt temperature. PET injection to the use of low shear, low compression ratio (about 2/1) of the screw, made longer feed section, a transition section and a metering section made shorter. Barrel temperature of the device a greater impact on the melt temperature, barrel temperature increase will reduce the intrinsic viscosity of the PET melt. Barrel temperature had a significant effect on the parison transparency, improve cylinder temperature can improve the transparency of the parison. For example, when a barrel temperature of 280 ℃, the corresponding melt temperature of 290 ℃, can ensure optimal transparency parison. The barrel temperature increase does not improve further transparency. Lower barrel temperatures, an appropriate increase in screw speed to clap gate temperature, small quantities can improve the transparency of the parison. However, due to the hot runner system melt through time is short, to a lesser extent the temperature of the parison transparency improvement. Increase the injection pressure, i.e., when the injection rate, the heat generated when high shear melt through the nozzle, the melt temperature is significantly improved, so that the barrel temperature can be lower transparent molded parison. Higher packing pressure will increase the rate of crystallization when cooling the melt parison mold, reducing the transparency of the parison, especially at lower cylinder temperature.
2015年7月12日星期日
Plastic Packaging
Plastic Bottle Cap Manufacturers, Custom Pet Bottles, Pet Bottles suppliers.
Made by: https://www.plastic-bottle-manufacturers.com/plastic-bottle-cap-manufacturers/
Thus, in the production of medicinal PET bottles, intrinsic viscosity of the raw materials, the crystallization temperature, cooling rate, and other process data alignment effect is particularly important. This is because the polyester material is a crystallizable polymer, the crystallization rate is small, only 6μm / min (max). Through process control crystallization conditions such as temperature and cooling rate, the polyester bottle into a non-crystalline or crystalline, and can change the crystal type and quantity. Crystallinity of the polyester requirements generally about 30%. At or slightly above the glass transition temperature slightly below the melting point, the crystallization rate of the polyester is small, crystallization takes a long time, at a temperature of about 175 ℃, the crystallization time is much shorter. In short, only by heating a crystalline polyester, the crystallization process is slow, it is possible to form a larger spherulite crystal, which refracts the light, so that white goods, and brittleness. Furthermore, with increasing the crystallization rate of the polyester decreases their Ⅳ. Ordered molecular orientation of the polyester can promote crystallization, the formed crystals called strain-induced crystalline, the grain is small, the light is not refracted, so oriented polyester article is transparent. If the sample of polyester partially crystalline orientation as heat setting to make further crystallized sample remains transparent. Therefore, the crystal orientation of the impact and stretch blow molding of PET bottles during the key factor to ensure performance. If the hot filling of bottles with bar-type sterilization, but also on the part of the crystalline polyester for heat setting, the further crystallization so in order to improve heat resistance.
2, polyester material dehumidifying and drying.
Because the processing of the polyester, wherein the moisture contained in the hydrolysis process will chemically react with the polyester melt rapidly consumed, i.e. water bubbles in the article. Hydrolysis will reduce the intrinsic viscosity of the polyester melt, but also affect the mechanical strength and performance of products, while the polyester raw material is a hygroscopic polymer, it should be subject to stringent and dried prior to processing to excess moisture content of less than 0.005%. Polyester raw materials to be used desiccant drying system to dry.
Made by: https://www.plastic-bottle-manufacturers.com/plastic-bottle-cap-manufacturers/
Thus, in the production of medicinal PET bottles, intrinsic viscosity of the raw materials, the crystallization temperature, cooling rate, and other process data alignment effect is particularly important. This is because the polyester material is a crystallizable polymer, the crystallization rate is small, only 6μm / min (max). Through process control crystallization conditions such as temperature and cooling rate, the polyester bottle into a non-crystalline or crystalline, and can change the crystal type and quantity. Crystallinity of the polyester requirements generally about 30%. At or slightly above the glass transition temperature slightly below the melting point, the crystallization rate of the polyester is small, crystallization takes a long time, at a temperature of about 175 ℃, the crystallization time is much shorter. In short, only by heating a crystalline polyester, the crystallization process is slow, it is possible to form a larger spherulite crystal, which refracts the light, so that white goods, and brittleness. Furthermore, with increasing the crystallization rate of the polyester decreases their Ⅳ. Ordered molecular orientation of the polyester can promote crystallization, the formed crystals called strain-induced crystalline, the grain is small, the light is not refracted, so oriented polyester article is transparent. If the sample of polyester partially crystalline orientation as heat setting to make further crystallized sample remains transparent. Therefore, the crystal orientation of the impact and stretch blow molding of PET bottles during the key factor to ensure performance. If the hot filling of bottles with bar-type sterilization, but also on the part of the crystalline polyester for heat setting, the further crystallization so in order to improve heat resistance.
2, polyester material dehumidifying and drying.
Because the processing of the polyester, wherein the moisture contained in the hydrolysis process will chemically react with the polyester melt rapidly consumed, i.e. water bubbles in the article. Hydrolysis will reduce the intrinsic viscosity of the polyester melt, but also affect the mechanical strength and performance of products, while the polyester raw material is a hygroscopic polymer, it should be subject to stringent and dried prior to processing to excess moisture content of less than 0.005%. Polyester raw materials to be used desiccant drying system to dry.
2015年7月11日星期六
Wine Bottles
Plastic Water Bottle Manufacturers, Custom Pet Bottles, Pet Bottles suppliers.
Made by: http://www.plastic-bottle-manufacturers.com
Preform is heated by the heating oven to complete, the temperature is set manually, automatically adjusted. Emit far infrared oven heated by the far infrared radiation preform tube, the bottom of the oven fan heat circulation, so the oven temperature uniformity. Preform in the oven at the same time moves forward rotation, so preform wall heat evenly.
Lamps arranged in an oven from top to bottom general was "zone" shape, more than two and less in the middle. Heat the oven by opening the number of lamps, the overall temperature setting, and each section was heated oven power than joint control. The lamp is turned in conjunction with the pre-blowing to be adjusted.
To play a better role oven, adjust its height, the cooling plate, etc. is very important, if adjusted properly, prone to swelling during blow bottle (bottle large), a hard head and neck (neck material will not pull out), etc. defects.
2.3 pre-blow
Pre-blowing is a two-step blow molding method is a very important step, it refers to the stretch blow molding process, while the rod drop pre-blowing beginning to make preforms in its shape. This step is a pre-blow position, pre-blowing pressure and gas flow rate are three important technological factors.
Pre-blowing shape determines the difficulty of the merits of the performance of the bottle blow molding process of the pros and cons. Pre-blowing normal spindle shape, unusual, there are sub-bell-like, handle-shaped and so on, as shown in FIG. Causes abnormal shapes have local heating improper or inadequate pre-blowing pressure gas flow rate, etc., and the pre-blowing the size depends on the pre-blow pressure and pre-blow position. In the production of the entire equipment to maintain all pre-blowing uniform size and shape, if the difference will have to look for specific reasons, can adjust the heating or pre-blow process according to the pre-blowing situation.
With the size of the pre-blow pressure bottle size, equipment capacity varies, large general capacity, pre-blowing pressure to be small; equipment production capacity, pre-blowing pressure is high.
Made by: http://www.plastic-bottle-manufacturers.com
Preform is heated by the heating oven to complete, the temperature is set manually, automatically adjusted. Emit far infrared oven heated by the far infrared radiation preform tube, the bottom of the oven fan heat circulation, so the oven temperature uniformity. Preform in the oven at the same time moves forward rotation, so preform wall heat evenly.
Lamps arranged in an oven from top to bottom general was "zone" shape, more than two and less in the middle. Heat the oven by opening the number of lamps, the overall temperature setting, and each section was heated oven power than joint control. The lamp is turned in conjunction with the pre-blowing to be adjusted.
To play a better role oven, adjust its height, the cooling plate, etc. is very important, if adjusted properly, prone to swelling during blow bottle (bottle large), a hard head and neck (neck material will not pull out), etc. defects.
2.3 pre-blow
Pre-blowing is a two-step blow molding method is a very important step, it refers to the stretch blow molding process, while the rod drop pre-blowing beginning to make preforms in its shape. This step is a pre-blow position, pre-blowing pressure and gas flow rate are three important technological factors.
Pre-blowing shape determines the difficulty of the merits of the performance of the bottle blow molding process of the pros and cons. Pre-blowing normal spindle shape, unusual, there are sub-bell-like, handle-shaped and so on, as shown in FIG. Causes abnormal shapes have local heating improper or inadequate pre-blowing pressure gas flow rate, etc., and the pre-blowing the size depends on the pre-blow pressure and pre-blow position. In the production of the entire equipment to maintain all pre-blowing uniform size and shape, if the difference will have to look for specific reasons, can adjust the heating or pre-blow process according to the pre-blowing situation.
With the size of the pre-blow pressure bottle size, equipment capacity varies, large general capacity, pre-blowing pressure to be small; equipment production capacity, pre-blowing pressure is high.
2015年7月7日星期二
Glass Bottle Manufacturing
Custom Plastic Bottle Manufacturers, Custom Pet Bottles, Pet Bottles suppliers.
Made by: www.plastic-bottle-manufacturers.com
Adjust its height, the cooling plate, etc. is important to make the oven work better. When adjusted properly, prone to swelling during blow bottle (bottle larger) hard head and neck (neck material will not pull out) and other defects. 2.3 pre-blow
Refers to the stretch blow molding process in the pre-start lever is declining blowing, pre-blowing is a two-step blow molding method is a very important step. Begun to take shape make preforms. This step is a pre-blow position, pre-blowing pressure and gas flow rate are three important technological factors.
Abnormal there are sub-bell-like, handle shape. Causes abnormal shape undue local heating, the shape of the merits of pre-determined blowing ease and bottle blow molding process of the merits of the performance. Pre-blowing normal spindle shape. Pre-blowing pressure or blowing insufficient flow, etc., and the pre-blowing depends on the size of the pre-blow pressure and pre-blow position. Production of the entire equipment to maintain all pre-blowing uniform size and shape, if the difference will have to look for specific reasons, can adjust the heating or pre-blow process according to the pre-blowing situation.
General capacity, pre-blowing pressure to be small; equipment production capacity, with the size of the pre-blow pressure bottle size, device capabilities vary. Pre-blowing pressure is high.
PET materials due to differences in performance, even when using the same equipment in the same standard bottles. It requires pre-blow pressure are not the same. Glass fiber reinforced PET data, the smaller pre-blowing pressure so that the bottom of the bottle to the correct orientation of macromolecules; improper or inappropriate preform molding process other materials, there is a lot of stress near the injection point of focus is not easy to subside, if Blow, blow often broken or burst from the injection point in the stress test, the leakage at the injection point. According to the orientation of the conditions, then you can, as shown on the tube is removed 2-3 branch to open over the injection point, given injection point is sufficiently heated to provide enough heat to facilitate their rapid orientation.
Made by: www.plastic-bottle-manufacturers.com
Adjust its height, the cooling plate, etc. is important to make the oven work better. When adjusted properly, prone to swelling during blow bottle (bottle larger) hard head and neck (neck material will not pull out) and other defects. 2.3 pre-blow
Refers to the stretch blow molding process in the pre-start lever is declining blowing, pre-blowing is a two-step blow molding method is a very important step. Begun to take shape make preforms. This step is a pre-blow position, pre-blowing pressure and gas flow rate are three important technological factors.
Abnormal there are sub-bell-like, handle shape. Causes abnormal shape undue local heating, the shape of the merits of pre-determined blowing ease and bottle blow molding process of the merits of the performance. Pre-blowing normal spindle shape. Pre-blowing pressure or blowing insufficient flow, etc., and the pre-blowing depends on the size of the pre-blow pressure and pre-blow position. Production of the entire equipment to maintain all pre-blowing uniform size and shape, if the difference will have to look for specific reasons, can adjust the heating or pre-blow process according to the pre-blowing situation.
General capacity, pre-blowing pressure to be small; equipment production capacity, with the size of the pre-blow pressure bottle size, device capabilities vary. Pre-blowing pressure is high.
PET materials due to differences in performance, even when using the same equipment in the same standard bottles. It requires pre-blow pressure are not the same. Glass fiber reinforced PET data, the smaller pre-blowing pressure so that the bottom of the bottle to the correct orientation of macromolecules; improper or inappropriate preform molding process other materials, there is a lot of stress near the injection point of focus is not easy to subside, if Blow, blow often broken or burst from the injection point in the stress test, the leakage at the injection point. According to the orientation of the conditions, then you can, as shown on the tube is removed 2-3 branch to open over the injection point, given injection point is sufficiently heated to provide enough heat to facilitate their rapid orientation.
2015年7月3日星期五
Sample Bottles
Plastic Bottle Manufacturer, Custom Pet Bottles, Pet Bottles suppliers.
Made by: https://www.plastic-bottle-manufacturers.com
PET bottles injection blow molding process parameter values
When the injection blow molding of PET bottles to control the melt temperature, it is in the range of 275 ℃ ~ 285 ℃, injection blow molding stage polymer than most of the high temperature of about 50 ℃. Hot runner system to adopt a streamlined, symmetrical design, to avoid dead ends. Nozzle with locking structure, the outer surface to be heated. To ensure that the parison has a high transparency, after filling the melt into a parison mold to be rapidly cooled to below 145 ℃, but than its glass transition temperature (82 ℃) higher and closer to the glass transition temperature, blow bottle higher transparency, can broaden the range of processing. Parison mold cooling water temperature should be as low as 10 ℃ ~ 35 ℃, rapid cooling of the parison. Also the use of a liquid or gas continuous cooling mandrel. Wherein the air cooling mandrel can have a more uniform axial temperature profile, and also will not leak. Cold air pressure within the mandrel typically 1MPa. Preferably liquid, gas cooling combination, PET parison inflation pressure is about 1.2MPa. Use of the cooling water temperature 5 ℃ ~ 10 ℃. Cooling blow molds, but also the parison rapidly cooling inflation.
PET bottle flakes processing
Improved rapid growth of PET bottle consumption, collection systems and change Europe in the regulations, for the rapid development of PET recycling industry offers new opportunities and new challenges.
There are many products made from recycled materials replace the pure material, creating economic and process technical sense, they are commonly used fibers, thermoformed sheet, non-woven fibers, packing tape, and even master batch and bottles.
Each of these processes are expected to be recovered PET performance requests, close to the requirements of the pure material presented. In addition to molecular weight (often referred to as intrinsic viscosity) away, melt foreign particles or contaminants (such as paper, sand, glue, PP and PVC and other plastics) will have an impact on product quality.
Highest quality requirements appear in so-called "bottle - bottle" recycling process. In this case, only when the source is determined by the use of bottles and under control, such as the backlog of recycled bottles, the process is practical and economically feasible.
Made by: https://www.plastic-bottle-manufacturers.com
PET bottles injection blow molding process parameter values
When the injection blow molding of PET bottles to control the melt temperature, it is in the range of 275 ℃ ~ 285 ℃, injection blow molding stage polymer than most of the high temperature of about 50 ℃. Hot runner system to adopt a streamlined, symmetrical design, to avoid dead ends. Nozzle with locking structure, the outer surface to be heated. To ensure that the parison has a high transparency, after filling the melt into a parison mold to be rapidly cooled to below 145 ℃, but than its glass transition temperature (82 ℃) higher and closer to the glass transition temperature, blow bottle higher transparency, can broaden the range of processing. Parison mold cooling water temperature should be as low as 10 ℃ ~ 35 ℃, rapid cooling of the parison. Also the use of a liquid or gas continuous cooling mandrel. Wherein the air cooling mandrel can have a more uniform axial temperature profile, and also will not leak. Cold air pressure within the mandrel typically 1MPa. Preferably liquid, gas cooling combination, PET parison inflation pressure is about 1.2MPa. Use of the cooling water temperature 5 ℃ ~ 10 ℃. Cooling blow molds, but also the parison rapidly cooling inflation.
PET bottle flakes processing
Improved rapid growth of PET bottle consumption, collection systems and change Europe in the regulations, for the rapid development of PET recycling industry offers new opportunities and new challenges.
There are many products made from recycled materials replace the pure material, creating economic and process technical sense, they are commonly used fibers, thermoformed sheet, non-woven fibers, packing tape, and even master batch and bottles.
Each of these processes are expected to be recovered PET performance requests, close to the requirements of the pure material presented. In addition to molecular weight (often referred to as intrinsic viscosity) away, melt foreign particles or contaminants (such as paper, sand, glue, PP and PVC and other plastics) will have an impact on product quality.
Highest quality requirements appear in so-called "bottle - bottle" recycling process. In this case, only when the source is determined by the use of bottles and under control, such as the backlog of recycled bottles, the process is practical and economically feasible.
2015年7月1日星期三
Water Bottle
Water Bottle Pet Bottle Manufacturers, Custom Pet Bottles, Pet Bottles suppliers.
Made by: http://www.petbottlemanufacturers.com
The temperature will lead to a small increase in the intrinsic viscosity of the polyester greatly reduced, so the drying time should be as short as possible in order to broaden the operating range. During the drying process, due to the high temperature polyester drying hopper equipment should have good thermal insulation properties and the use of glass fiber insulation, should avoid contact with the dry polyester raw materials and outside air, because polyester raw material will rapidly absorb moisture from the air. For example, the polyester raw material is completely dried and a relative humidity of 35% to 40% after 12min of exposure to air, i.e., a moisture content of 0.005%. Medicinal PET bottle molding method
PET bottle molding methods are extrusion blow molding and injection blow molding two processes. Stretch blow another one-step and two-step process of the points. In the one-step molding, parison molding, cooling, heating, stretching were taken in order to complete the blow and bottle on a machine. Rule two steps by extrusion or injection molding the parison, and the parison was cooled to room temperature, becoming semi-finished products, and then the parison is reheated and stretch blow molding machine become bottle. That parison molding, stretch blow molding is done on the two machines, respectively. One-step injection blow molding PET bottles, injection blow molding equipment requires two molds that parison injection mold and blow mold. The injection molded preform is mainly composed of the parison mold cavity and the mandrel, its parameters are chosen size of each part is correct or not is the key to whether the shape of the bottle. Therefore, the size of the mold preform molding process parameters combined with a reasonable selection. 1, the ratio of the height of its neck PET bottle thread diameter of the mandrel can be determined parison aspect ratio (L / D)
Mandrel aspect ratio generally ranging principle is no more than 10: 1. This is because the parison mold mandrel as a cantilever, and by the effect of high injection pressure during filling.
Made by: http://www.petbottlemanufacturers.com
The temperature will lead to a small increase in the intrinsic viscosity of the polyester greatly reduced, so the drying time should be as short as possible in order to broaden the operating range. During the drying process, due to the high temperature polyester drying hopper equipment should have good thermal insulation properties and the use of glass fiber insulation, should avoid contact with the dry polyester raw materials and outside air, because polyester raw material will rapidly absorb moisture from the air. For example, the polyester raw material is completely dried and a relative humidity of 35% to 40% after 12min of exposure to air, i.e., a moisture content of 0.005%. Medicinal PET bottle molding method
PET bottle molding methods are extrusion blow molding and injection blow molding two processes. Stretch blow another one-step and two-step process of the points. In the one-step molding, parison molding, cooling, heating, stretching were taken in order to complete the blow and bottle on a machine. Rule two steps by extrusion or injection molding the parison, and the parison was cooled to room temperature, becoming semi-finished products, and then the parison is reheated and stretch blow molding machine become bottle. That parison molding, stretch blow molding is done on the two machines, respectively. One-step injection blow molding PET bottles, injection blow molding equipment requires two molds that parison injection mold and blow mold. The injection molded preform is mainly composed of the parison mold cavity and the mandrel, its parameters are chosen size of each part is correct or not is the key to whether the shape of the bottle. Therefore, the size of the mold preform molding process parameters combined with a reasonable selection. 1, the ratio of the height of its neck PET bottle thread diameter of the mandrel can be determined parison aspect ratio (L / D)
Mandrel aspect ratio generally ranging principle is no more than 10: 1. This is because the parison mold mandrel as a cantilever, and by the effect of high injection pressure during filling.
Dropper Bottles
Plastic Bottle Manufacturers, Custom Pet Bottles, Pet Bottles suppliers.
Made by: https://www.plastic-bottle-manufacturers.com
The difficulty of the important factors affecting the PET bottle blow mold process, the shape of the mold will reduce or increase the merits of the adjustment process, such as ribs, thermal conditions and the curvature of the bottom of the transition zone of the adjustment process so influential. 2.5 Environment
The quality of the production environment have a greater impact on the adjustment process, constant conditions can maintain the stability of the process and the stability of the product. PET bottle blow molding generally carried out at room temperature, low humidity state is better. 3 Other requirements
Pressure bottle should also meet the stress test and the pressure test requirements. Stress testing is to prevent the degradation of the molecular chains during PET bottle filling beverage bottle with a lubricant (basic) during contact and cracking, leakage and other internal quality control; the pressure test is to prevent the bottle filling quality have burst after a certain pressure gas into the line of control. In order to meet these two needs, the center of the thickness to be controlled within a certain range, in general, is the center of thin, good stress test, pressure is poor; the center of thick, pressure test better, worse stress test. Of course, the results of the stress test is also related to the accumulation area around the center point of transition material has a great relationship, which should be adjusted based on actual experience. 4 Conclusion
PET bottle blow molding process adjustment is carried out for the respective material, if poor materials, process requirements very harsh, even hard blow qualified bottle.
PET bottles, caps knowledge introduction
Full name is PET Polyethylene Terephthalate (polyethylene terephthalate), is composed of a polymer of terephthalic acid (Terephthalic acid) and ethylene glycol (Ethylene glycol) produced after a compound, referred to as polyester. PET plastic with light weight, high transparency, impact resistance not broken and other characteristics, but also can prevent carbon dioxide gas, so soda maintain a "vapor." Therefore, PET plastic suitable for packaging, especially laden water and soft drinks! Normal PET bottles from PET production processes is the oil additive melt polyester chip preforms after injection, at a certain temperature and humidity storage environment after a period of time without crystallization or crystallization, and then blown into bottles. Cover material, mostly PP and PE, injection molding and compression molding two points, similar to the production process and bottle, but using masterbatch, some need with less cushion, cover the surface sometimes affixed trademarks, and other printed, including injection molding cover top faint dot.
Made by: https://www.plastic-bottle-manufacturers.com
The difficulty of the important factors affecting the PET bottle blow mold process, the shape of the mold will reduce or increase the merits of the adjustment process, such as ribs, thermal conditions and the curvature of the bottom of the transition zone of the adjustment process so influential. 2.5 Environment
The quality of the production environment have a greater impact on the adjustment process, constant conditions can maintain the stability of the process and the stability of the product. PET bottle blow molding generally carried out at room temperature, low humidity state is better. 3 Other requirements
Pressure bottle should also meet the stress test and the pressure test requirements. Stress testing is to prevent the degradation of the molecular chains during PET bottle filling beverage bottle with a lubricant (basic) during contact and cracking, leakage and other internal quality control; the pressure test is to prevent the bottle filling quality have burst after a certain pressure gas into the line of control. In order to meet these two needs, the center of the thickness to be controlled within a certain range, in general, is the center of thin, good stress test, pressure is poor; the center of thick, pressure test better, worse stress test. Of course, the results of the stress test is also related to the accumulation area around the center point of transition material has a great relationship, which should be adjusted based on actual experience. 4 Conclusion
PET bottle blow molding process adjustment is carried out for the respective material, if poor materials, process requirements very harsh, even hard blow qualified bottle.
PET bottles, caps knowledge introduction
Full name is PET Polyethylene Terephthalate (polyethylene terephthalate), is composed of a polymer of terephthalic acid (Terephthalic acid) and ethylene glycol (Ethylene glycol) produced after a compound, referred to as polyester. PET plastic with light weight, high transparency, impact resistance not broken and other characteristics, but also can prevent carbon dioxide gas, so soda maintain a "vapor." Therefore, PET plastic suitable for packaging, especially laden water and soft drinks! Normal PET bottles from PET production processes is the oil additive melt polyester chip preforms after injection, at a certain temperature and humidity storage environment after a period of time without crystallization or crystallization, and then blown into bottles. Cover material, mostly PP and PE, injection molding and compression molding two points, similar to the production process and bottle, but using masterbatch, some need with less cushion, cover the surface sometimes affixed trademarks, and other printed, including injection molding cover top faint dot.
订阅：
博文 (Atom)