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轴承行业过去冲压钢球用的模具材料,大多数采用GCr15轴承钢,少数厂用Cr12MoV等,而被冲压的钢球材料是轴承钢,它变形抗力比较大,模具在工作时,受到强烈冲击和摩擦。所以要求模具材料应具有高硬度、高强度、高耐磨性,以及足够的韧性。GCr15、Cr12MoV等材料满足不了模具对材料的要求,它寿命低、材料消耗量大,直接影响生产率的提高。近年来,推广应用钢结硬质合金(以下简称钢结合金)作为钢球模具材.
Bearing industry used in the past, the ball used in stamping die materials, the majority of GCr15 bearing steel, a few plants with Cr12MoV, etc., and was punched ball material is bearing steel, it is relatively large deformation resistance, the mold at work, by a strong impact and friction. Therefore, the requirements of the mold material should have high hardness, high strength, high wear resistance, and sufficient toughness. GCr15, Cr12MoV and other materials to meet the mold of the material requirements, its low life expectancy, material consumption, a direct impact on productivity. In recent years, the promotion of the use of steel bonded carbide (hereinafter referred to as the steel bonded gold) as a steel mold material.