| 30Cr2Ni2Mo钢大型环类锻件的热处理工艺研究 |
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| 引用本文： | 郑三妹,崔丽丽,孙长波,赵阳磊,贺强.30Cr2Ni2Mo钢大型环类锻件的热处理工艺研究[J].大型铸锻件,2014(4):13-17. |
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| 作者姓名： | 郑三妹 崔丽丽 孙长波 赵阳磊 贺强 |
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| 作者单位： | 中信重工机械股份有限公司,河南471003 |
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| 摘 要： | 通过不同热处理工艺试验结果的对比分析,制定了30Cr2Ni2Mo钢大型环类锻件的最佳热处理工艺。对锻件不同部位进行取样分析,结果表明锻件表面和心部的力学性能全部满足技术要求,但壁厚1/2处的力学性能略优于内层。这主要是由于心部获得粒状贝氏体和富含合金元素回火索氏体混合组织的缘故。同时,试验还获得了锻件调质后的变形情况,为高淬透性钢大型环类锻件的热处理留量提供了有力的参考依据。
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| 关 键 词： | CrNiMo钢 大型环类锻件 热处理工艺 力学性能 粒状贝氏体 |
Research on Heat Treatment Technology of 30Cr2Ni2Mo Steel Large Ring Forgings |
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| Zheng Sanmei,Cui Lili,Sun Changbo,Zhao Yanglei,He Qiang.Research on Heat Treatment Technology of 30Cr2Ni2Mo Steel Large Ring Forgings[J].Heavy Casting and Forging,2014(4):13-17. |
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| Authors: | Zheng Sanmei Cui Lili Sun Changbo Zhao Yanglei He Qiang |
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| Affiliation: | Zheng Sanmei, Cui Lili, Sun Changbo, Zhao Yanglei, He Qiang |
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| Abstract: | Through the comparative analysis of results of different heat treatment process test , the best heat treatment process of 30Cr2Ni2Mo steel large ring forgings is formulated .The results show that all mechanical properties of forging surface and center satisfy the technical requirements by analyzing the different sampling parts of the forgings , but the mechanical properties of 1/2 of the wall thickness is slightly better than that of the inner layer , which is mainly caused by the heart obtaining granular bainite and being rich in alloying elements tempered sorbite hybrid organization . The distortion situation after quenching and tempering is obtained by test which can be regarded as powerful reference for the process allowance of heat treatment deformation of large ring forgings made by high hardenability steel . |
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| Keywords: | 30Cr2Ni2Mo steel large ring forgings heat treatment process mechanical properties granular bainite |
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