Manufacturer solid pharmaceutical plastic bottle factory price supply

Author: mgg-Plastic bottle manufacturer

Manufacturer solid medicinal plastic bottle factory price supply, pharmaceutical plastic bottle, pharmaceutical plastic bottle, PET pharmaceutical plastic bottle, solid pharmaceutical plastic bottle, medical plastic bottle introduction, quality trust, reputation, reputation, contact number + 86- 15916785363 Currently, the molding method of plastic bottle equipment is mainly produced: (1) extrusion blow molding, (2) injection blow molding, (3) pull-down blow molding, (4) injection blow molding; these four methods Production product structure has different performance. Small pharmaceutical plastic bottles use injection molding equipment pharmaceutical factories, because in the process of injection molding bottle, pay attention to the injection molding equipment of the bottle mouth, thereby ensuring the accuracy bottle, then mechanical configuration by the mandrel The blow molding bottle ensures the accuracy of the shape size of the plastic bottle, and the drug can effectively prevent the bottle from volatilizing and external gas penetration. Since the injection molding machine requires a pair of semi-finished molds, blow molds, the cost of the device is a relatively high extrusion blow mold.

Blowing polyester (PET) is a linear thermoplastic saturated polyester, a feature viscosity (IV) 70 - 80 l / g for blowing grade, is used to make the plastic blow molded bottle size. (1) Cylinder temperature parameters: General cylinder before the Cylcurde temperature 265 ° C to 275 ° C, and the cylinder temperature is from 280 ° C to 290 ° C, and the cylinder temperature 260 ° C to 255 ° C. The hygroscopic polymer material must be wet and dried, drying temperature of 150 ° C to 163 ° C, time is 5 hours, the temperature should be reduced to about 120 ° C, about 0.05% water content, heat preservation.

The particle drying has a large effect on forming properties, and the air in contact with the outer surface should be avoided because the dry raw material rapidly absorbs moisture in the air. (2) Injection type blank temperature: In order to ensure the transparency of the semi-finished product, when the melt filling type blank is cold? 45 ° C, more high glass transition temperature (82 ° C), closer to the raw material, glass transition temperature Transparency of the blow molding bottle. (3) Core temperature: In order to ensure uniform temperature distribution of the mandrel, the temperature of the mandrel section is: core bar head 45 ° C and 55 ° C, 40 ° C - 50 ° C, the tail is 25 ° C to 35 ° C.

In the billet injection station, due to the high melting temperature, the core temperature should be limited to the range, and when the mandrel is released, the lower limit of the cold internal core temperature range is defined.