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65nb gang leng chong mo de ying yong
Author(s): 
Pages: 49
Year: Issue:  4
Journal: Heat Treatment of Metals

Keyword:  使用寿命冷变形华中工学院冷冲裁模具实践证明模具钢汽车里程表金属材料高强韧性模具用钢;
Abstract: <正> 65Nb(65Cr4W3Mo2VNb)钢是华中工学院与大冶钢厂研制的新型高强韧性冷变形模具钢。我们在华中工学院金属材料教研室的协助下,用于制造我厂当时使用寿命最短的圆环凹凸模。生产实践证明,65Nb 钢不仅是优良的冷变形模具用钢,而且也是优良的冷冲裁模具用钢。圆环是汽车里程表上的零件,外圆φ9.8mm,内孔φ6.5mm,厚2.5mm,形状如一只
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