CN1996013B - 用洛氏、里氏硬度对比法检测钢的残余奥氏体量及回火不足的方法 - Google Patents
用洛氏、里氏硬度对比法检测钢的残余奥氏体量及回火不足的方法 Download PDFInfo
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- CN1996013B CN1996013B CN2006101665807A CN200610166580A CN1996013B CN 1996013 B CN1996013 B CN 1996013B CN 2006101665807 A CN2006101665807 A CN 2006101665807A CN 200610166580 A CN200610166580 A CN 200610166580A CN 1996013 B CN1996013 B CN 1996013B
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Description
件号 | 淬前尺寸 | 一次回火后尺寸 | 二次回火后尺寸 | 三次回火后尺寸 |
2020 | 280mm | 278.5mm | 279.3mm | 280.1mm |
2016 | 279.8mm | 278.5mm | 279.2mm | 279.7mm |
2023 | 250.2mm | 249.3mm | 249.4mm | 250.1mm |
2011 | 239.9mm | 239mm | 239.4mm | 239.8mm |
序号 | 洛氏硬度计值 | 里氏硬度计值 |
淬火状态 | 57-59HRC | 49-52HRCLD |
大试样1一次回火后 | 55-56HRC | 49-52HRCLD |
大试样1二次回火后 | 59-60HRC | 56-58HRCLD |
大试样1三次回火后 | 59-60HRC | 58-60.5HRCLD |
大试样2在480℃三次回火后 | 58-59HRC | 52-58HRCLD |
大试样2在520℃回火后 | 59-60HRC | 58-60HRCLD |
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CN2006101665807A CN1996013B (zh) | 2006-12-31 | 2006-12-31 | 用洛氏、里氏硬度对比法检测钢的残余奥氏体量及回火不足的方法 |
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CN2006101665807A CN1996013B (zh) | 2006-12-31 | 2006-12-31 | 用洛氏、里氏硬度对比法检测钢的残余奥氏体量及回火不足的方法 |
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CN1996013A CN1996013A (zh) | 2007-07-11 |
CN1996013B true CN1996013B (zh) | 2010-09-08 |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102419282B (zh) * | 2011-08-22 | 2014-02-12 | 中原特钢股份有限公司 | 将现场里氏硬度转换为布氏硬度对比标块的制作方法 |
CN102634650A (zh) * | 2012-04-24 | 2012-08-15 | 中煤北京煤矿机械有限责任公司 | 液压支架铰接销轴的热处理方法 |
CN108760548B (zh) * | 2018-04-16 | 2024-02-20 | 吉林大学 | 双行程混合驱动微纳米压痕/划痕测试装置 |
CN110031281B (zh) * | 2019-04-17 | 2021-08-06 | 中冶建筑研究总院有限公司 | 一种确定钢材种类的方法 |
CN114295505B (zh) * | 2021-12-27 | 2024-03-01 | 绍兴市特种设备检测院 | 一种奥氏体不锈钢热处理状态快速检验方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1068427A (zh) * | 1992-01-11 | 1993-01-27 | 机械电子工业部北京机电研究所 | 测定钢铁零件中奥氏体含量装置及方法 |
EP0813051A1 (en) * | 1996-06-11 | 1997-12-17 | Mitsubishi Jukogyo Kabushiki Kaisha | A method of detecting the embrittlement of two-phase stainless steel |
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Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1068427A (zh) * | 1992-01-11 | 1993-01-27 | 机械电子工业部北京机电研究所 | 测定钢铁零件中奥氏体含量装置及方法 |
EP0813051A1 (en) * | 1996-06-11 | 1997-12-17 | Mitsubishi Jukogyo Kabushiki Kaisha | A method of detecting the embrittlement of two-phase stainless steel |
Non-Patent Citations (1)
Title |
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沈伟芳等.冷轧工作辊回火工艺与硬度的回归计算.冶金设备 6.2002,(6),61-62. * |
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CN1996013A (zh) | 2007-07-11 |
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Assignee: DONGFENG DIE & STAMPING TECHNOLOGIES CO.,LTD. Assignor: DONGFENG MOTER Co.,Ltd. Contract record no.: 2012420000057 Denomination of invention: Method for detecting retained austenite and under-tempering by using Rockwell and Leeb hardness contrast method Granted publication date: 20100908 License type: Exclusive License Open date: 20070711 Record date: 20120509 |
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Application publication date: 20070711 Assignee: DONGFENG DIE & STAMPING TECHNOLOGIES CO.,LTD. Assignor: DONGFENG MOTER Co.,Ltd. Contract record no.: 2012420000057 Denomination of invention: Method for detecting retained austenite and under-tempering by using Rockwell and Leeb hardness contrast method Granted publication date: 20100908 License type: Exclusive License Record date: 20120509 |
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