The selection requirements for plastic mold processing materials

        In the process of precision plastic mold processing, the choice of materials as the basis of the whole process is very critical, on the one hand to meet the actual working conditions, on the other hand, but also to meet the requirements of process performance, of course, can not ignore the economic requirements.
　　When the blank material is plastic denatured in the precision plastic mold cavity, the surface of the type cavity flows and slides, causing violent friction between the surface of the cavity and the blank, which causes the precision plastic mold to fail due to wear. Therefore, one of the basic properties of precision plastic mold processing materials is wear resistance.

        Because the working conditions of precision plastic molds are mostly very bad, some often bear a large impact load, resulting in brittle fracture. Therefore, in order to mold parts at work suddenly brittle, precision plastic mold processing materials to have a higher strength and toughness.

         In the process of precision plastic mold work, under the long-term action of circulating stress, fatigue often leads to fracture. However, if the fatigue fracture performance of its processing material is better, the problem will be greatly improved. In addition, high temperature, heat and cold fatigue resistance, corrosion resistance, etc. are also included in the actual working conditions.
　　In terms of process performance, precision plastic mold processing materials need to meet the forgability, de-ignition process, cutting processing, oxidation, decarbonization sensitivity, hardening, quenching permeability, quenching deformation cracking tendency and wearability.

        In the precision plastic mold processing, precision mold processing material selection, we must consider the principle of economy, as far as possible to reduce manufacturing costs. Therefore, under the premise of meeting the performance of use, first of all, the price is lower, carbon steel can be used without alloy steel, can use domestic materials without imported materials.