1、Wear resistance

Raw materials in the injection mold concave mold plastic deformation deformation, along the surface of the mold cavity cycle rolling, so that the surface of the mold cavity and the blank of violent friction, and then make the abrasive tool because of the damage to the ineffective. Therefore, the corrosion resistance of the material is one of the basic and important characteristics of the mold.

The strength of the mold processing is the main factor affecting wear resistance. Generally speaking, the higher the strength of the mold parts, the smaller the wear rate, the higher the wear resistance. In addition, wear resistance is also related to the type, total amount, shape, size and distribution of carburizer in the material.

2、Strong ductility

Some are often subjected to large impact loads, which can lead to brittle fracture. In order to avoid mold parts in the work of sudden brittle fracture, high-precision metal mold with high hardness and ductility.

The key to the ductility of mold processing is the carbon content of raw materials, grain size and structure - mold manufacturing.

3, fatigue cracking characteristics

Fatigue fracture is usually caused by the long-term effect of cyclic stress in the working part of the mold, its type includes small kinetic energy repeated impact fatigue fracture.

The key to the fatigue cracking characteristics of the mold shell is its compressive strength, ductility, strength, and the composition of impurities in its raw materials.