| 热作模具钢4Cr5Mo2V锯切异常原因分析 |
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| 引用本文： | 燕云,牟风,刘宝石,马野,蔡清. 热作模具钢4Cr5Mo2V锯切异常原因分析[J]. 模具制造, 2021, 21(1): 80-84 |
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| 作者姓名： | 燕云 牟风 刘宝石 马野 蔡清 |
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| 作者单位： | 抚顺特殊钢股份有限公司 辽宁抚顺113001;抚顺特殊钢股份有限公司 辽宁抚顺113001;抚顺特殊钢股份有限公司 辽宁抚顺113001;抚顺特殊钢股份有限公司 辽宁抚顺113001;抚顺特殊钢股份有限公司 辽宁抚顺113001 |
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| 摘 要： | 分析了热作模具钢4Cr5Mo2V锯切后产生异常凸起原因,结果表明因4Cr5Mo2V钢中存在异常空白组织,导致该区域硬度明显高于基体,在锯切后表现为凸起形态。通过正火+组织超细化处理+球化退火的热处理工艺可以完全消除4Cr5Mo2V钢异常组织,显微组织能够达到NADCA#207-2003标准要求。
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| 关 键 词： | 热作模具钢 退火组织 显微硬度 冲击性能 SEM 热处理 |
Analysis on Abnormal Sawing of Hot Working Die Steel 4Cr5Mo2V |
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| Yan Yun,Mu Feng,Liu Baoshi,Ma Ye,Cai Qing. Analysis on Abnormal Sawing of Hot Working Die Steel 4Cr5Mo2V[J]. Die & Mould Manufacture, 2021, 21(1): 80-84 |
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| Authors: | Yan Yun Mu Feng Liu Baoshi Ma Ye Cai Qing |
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| Affiliation: | (Technical Center of Fushun Special Steel Shares Co.,Ltd.,Fushun,Liaoning 113001,CHN) |
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| Abstract: | In this paper,the cause of abnormal bulge after sawed 4Cr5Mo2V hot working die steel was analyzed.The result showed that the hardness of this area was significantly higher than that of the matrix due to the abnormal blank structure in 4Cr5Mo2V steel,which showed a bulge shape after sawed.The abnormal microstructure of 4Cr5Mo2V steel can be completely eliminated by normalizing,superrefining and spheroidizing annealing,and the microstructure can meet the requirements of N ADCA#207-2003 standard. |
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| Keywords: | hot working die steel annealed microstructure microhardness impact properties SEM heat treatment |
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