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cr12 gang shan xing mo hui huo gong yi de gai jin
Pages: 63
Year: Issue:  5
Journal: Heat Treatment of Metals

Keyword:  回火工艺热处理工艺扇形线切割加工二次回火油回火硬度空冷模具变形改进;
Abstract: <正> 我厂Cr12钢扇形模(如图1),要求热处理后硬度为HRC58~62。原热处理工艺为980~1000℃加热淬油,≤200℃出油空冷至100~150℃,200~220℃×60min二次回火,回火后空冷。热处理后硬度符合技术要
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