1. Plastic material Because PET plastic material has strong hygroscopicity, the material must be dried before processing. The drying temperature is 150°C for more than 4 hours; generally 170°C for 3-4 hours. The air jet method can be used to check whether th...

Preform bending after demolding Reason: eccentric gate hole and uneven cooling can cause preform bending after demolding. Solution: When this happens, some measures need to be taken. When the gate hole is eccentric, the mold can be corrected; in addition, redu...

As a "Master of Cavities" in the field of injection molding, the design and manufacturing quality of preform molds directly impact the subsequent appearance, performance, and even the safety of PET bo...