Plastic mold steel: experts analyze various models and names.
Introduction: In the making of plastic molds, the choice of steel is very important. This article will introduce the models and names of various plastic mold steels in detail to help you better understand and apply.
1. Overview of plastic mold steel.
Plastic mold steel is a special steel used to make plastic molds, and its quality and performance have a great impact on the life of the mold and the accuracy of the workpiece. According to different application scenarios and needs, plastic mold steel can be divided into cold work die steel, hot work die steel and plastic mold special steel.
Second, the model and name of various plastic mold steel.
1) CR12: a high-carbon and high-chromium cold work die steel, with high hardness and wear resistance, suitable for making drawing dies, cold heading dies, etc. (2) CR12MOV: Cold work die steel containing a small amount of Mo and V, with high hardenability and wear resistance, suitable for making molds with large cross-sections. (3) GCR15: special steel for high-carbon chromium bearings, with high hardness, high wear resistance and good toughness, suitable for making bearing sleeves, cages, etc.
1) 5crmnmo: medium carbon alloy hot work die steel, with good toughness and high temperature performance, suitable for making hot extrusion molds, die-casting molds, etc. (2) 3Cr2W8V: high tungsten and high vanadium hot work die steel, with excellent high temperature strength and thermal fatigue resistance, suitable for making hot forging molds, hot die casting molds, etc.
1) 40cr: medium carbon alloy plastic mold special steel, with good toughness and processing performance, suitable for making plastic mold base, core-pulling mold, etc. (2) P20: special steel for pre-hardened plastic molds, with high hardness, toughness and corrosion resistance, suitable for making precision plastic molds. (3) NAK80: special steel for high-polishing plastic molds, with excellent mirror polishing and corrosion resistance, suitable for making optical lens molds. (4) S136: special steel for corrosion-resistant plastic molds, with excellent corrosion resistance and polishing, suitable for making plastic molds with high corrosion resistance requirements. (5) 718H: special steel for high-temperature plastic molds, with excellent high-temperature strength and toughness, suitable for making high-temperature injection molds.
3. Summary. This article introduces the models and names of various plastic mold steels, including cold work die steel, hot work die steel, and plastic mold special steel. When choosing the right plastic mold steel, it should be comprehensively considered according to the application scenario and needs. The right steel can improve the life of the mold and the accuracy of the part, thereby reducing production costs and improving product quality.