[题名] 塑料工艺手册

[摘要] 注塑成型被定义为一种使用热熔塑料材料生产零件的方法。这是通过使用注塑成型机完成的。生产的形状由称为模具的封闭室控制。注塑成型机有两个基本部分，即注射单元和夹紧单元。注射单元熔化塑料并将其输送或移动到封闭室或模具中。夹紧单元的作用是在注射期间将模具保持在一个封闭位置，以抵抗输送或注射和将材料塑造成特定形状的压力，然后在冷却后打开以将零件从模具中弹出。

[关键词] 注塑成型、模具

[Title] HANDBOOK OF PLASTIC PROCESSES

[Abstract] According to the Injection Molding Division of the Society of Plastics Engineers,injection molding is defined as a method of producing parts with a heat-meltable plastics material [1]. This is done by the use of an injection molding machine. The shape that is produced is controlled by a confined chamber called a mold. The injection molding machine has two basic parts, the injection unit, the clamping unit.The injection unit melts the plastic and conveys or moves the material to the confined chamber or mold. The purpose of the clamping unit is to hold the mold in a closed position during injection to resist the pressures of the conveying or injection and forming of the material into a specific shape, and then opens after cooling to eject the part from the mold.

[Keywords] Injection molding、 mold