一、基本知识 塑料是以合成树脂为基础,加入或不加入填充料而能塑制成型的物质。 塑料的品种很多,但是被采用作为机械结构材料的却不外如下面所提到的两种类型中的十几种塑料。人们把这些可以作为机械零件或物件的材料称为工程塑料。 工程塑料根据共加工特性来分,则可分 First, the basic knowledge of plastic is based on synthetic resin, with or without filler and plastic molding material. There are many varieties of plastics, but more than a dozen of the two types of plastics that are used as mechanical structures are nothing more than the two types mentioned below. People call these materials that can be used as mechanical parts or objects as engineering plastics. Engineering plastics according to the total processing characteristics to points, you can divide