Preform injection mold is an important auxiliary tool for preform production. Its use is related to the overall quality and specification of preform, so it is of great significance to the production of preform.
The production of preforms is an important embodiment of preform injection molds. Under a certain temperature and pressure, fill the mold with raw materials, and process it into a preform with a certain thickness and height under the processing of the injection molding
The material for producing preforms is mainly polyester resin. It is a milky white or pre-yellow highly crystalline polymer with a smooth and shiny surface. Creep resistance, fatigue resistance, friction resistance, good dimensional stability, low wear, high hardness, high toughness of thermoplastics; good electrical insulation performance, less affected by temperature, but poor corona resistance. Non-toxic, weather resistance, good chemical stability, low water absorption, weak acid and organic solvent resistance.
Preforms have strong applicability and are widely used in daily necessities, daily chemical packaging and other fields. From mold processing to mechanical equipment, there are strong pickiness, easy to get started, but difficult to do. Therefore, for the preform injection mold, its overall quality directly affects the production of the preform, so starting from the production and processing of the mold, there must be a high production standard. Only in this case can the preform have greater application advantages.
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