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前言 轴承圈冷挤压成型模具、习惯用GCr15钢制造。即用轴承钢模具来加工轴承材料,致使模具容易磨损、塌陷和端部断裂等。 7CrsiMnMoV钢是强韧性较高的新型冷作模具钢,具有良好的综合性能,淬火温度宽,淬透性好。在84O～1000℃之间淬火,可获得 HRC600以上的高硬度及理想的金相组织。规详细地介绍一下 7CrSiMnMoV钢轴承圈成型模具的热处理工艺,与GCr15钢机械性能的对比,以及模具生产考核和取得
Preface Bearing ring cold extrusion die, used to manufacture GCr15 steel. Bearing steel that is used to process bearing materials, resulting in easy wear and tear mold, collapse and end rupture. 7CrsiMnMoV steel is a new high strength and toughness of cold work die steel, has a good overall performance, quenching temperature wide, good hardenability. Quenching between 84O ~ 1000 ℃, HRC600 available above the high hardness and the ideal microstructure. Regulate in detail about the 7CrSiMnMoV steel bearing ring forming mold heat treatment process, and GCr15 steel mechanical properties of the comparison, as well as mold production assessment and acquisition