Bainitic core grinding rod
    3.
    发明公开
    Bainitic core grinding rod 失效
    Mahlstab mit bainitischem Kern。

    公开(公告)号:EP0336090A1

    公开(公告)日:1989-10-11

    申请号:EP89102939.9

    申请日:1989-02-20

    IPC分类号: C21D9/36

    摘要: A carbon or alloy steel heat treated grinding rod having improved wear resistance and breaking resistance for use in a rotating grinding mill. The surface of the rod has a martensitic microstructure having a hardness of at least HRC 55. The core of the rod has a bainitic microstructure having a hardness of at least HRC 40. A preferred rod composition includes at least .7% carbon, at least .25% of molybdenum, at least .25% chromium, less than .7% manganese, the balance iron and unavoidable impurities, all percentages by weight.

    摘要翻译: 一种用于旋转研磨机的具有改进的耐磨性和抗断裂性的碳或合金钢热处理研磨棒。 棒的表面具有硬度至少为HRC55的马氏体组织。棒的芯具有硬度至少为HRC 40的贝氏体组织。优选的棒组成包括至少0.7%的碳,至少 0.25%的钼,至少0.25%的铬,少于0.7%的锰,余量为铁和不可避免的杂质,均为重量百分比。