The plastic injection moldmaking is a production of plastic products and plastic products; to complete structure and precise size of the tool. Injection molding is a new processing method used in mass production of some complicated shape components. Refers to the specific heat melting the material by high-pressure injection mold cavity, after cooling after curing, obtain a molded article.

The injection mold is divided into thermoplastic injection moldmaking, thermoplastic plastic mold two according to the forming characteristics; according to the forming process is divided into transfer molding, blow molding, casting molding, heat molding, hot pressing mold (mold), injection mold, the hot pressing mold to overflow mode can be divided into half, overflow overflow type type, type three does not overflow, the injection mold gating system can be divided into cold runner mold, hot runner mold two; according to the loading mode can be divided into mobile, fixed two.

The injection mold is an important equipment for the production of industrial products, with the rapid development of plastic industry, plastic products and application in aviation, aerospace, electronics, machinery, shipbuilding and automobile industry, the requirements of the mold products are increasingly high, the traditional mold design method has been unable to adapt to the requirements. With the traditional mold design, computer aided engineering (CAE) technology both in improving productivity, ensure the quality of products, or in reducing cost, reducing labor intensity, has great superiority.