The properties of cemented carbide mold materials include mechanical properties, high temperature properties, surface properties, process properties and economic properties. The working conditions of various molds are different, and the requirements for material properties are also different.
1. The cold work mold requires high hardness and strength, and good wear resistance, as well as high compressive strength, good toughness and fatigue resistance.
2. In addition to general room temperature performance, hot-worked cemented carbide molds must have good corrosion resistance, tempering stability, high temperature oxidation resistance and thermal fatigue resistance, and a small thermal expansion coefficient And good thermal conductivity, the surface of the mold cavity must have sufficient hardness, and it must be tough and wear resistant.
3. The working conditions of the die-casting mold are harsh, so the cemented carbide mold is required to have good wear resistance, heat resistance, compression resistance, and oxidation resistance.
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