发明授权
- 专利标题： Inclusion rating method
- 专利标题（中）： 纳入评级法
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申请号： US12846409申请日： 2010-07-29
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公开(公告)号： US08393226B2公开(公告)日： 2013-03-12
- 发明人: Shinji Fujita , Yukitaka Murakami
- 申请人： Shinji Fujita , Yukitaka Murakami
- 申请人地址： JP Tokyo JP Fukuoka
- 专利权人： NSK Ltd.,Kyushu University, National University Corporation
- 当前专利权人： NSK Ltd.,Kyushu University, National University Corporation
- 当前专利权人地址： JP Tokyo JP Fukuoka
- 代理机构： Sughrue Mion, PLLC
- 主分类号： G01N3/08
- IPC分类号： G01N3/08
摘要：
An inclusion rating method includes carrying out a tensile test on a test specimen, which is made of a metallic material and charged with a hydrogen, to cause a fracture originating from a nonmetallic inclusion affected by the hydrogen in the test specimen, identifying a type of the nonmetallic inclusion, measuring a size of the nonmetallic inclusion, and evaluating a cleanliness of the metallic material by obtaining a distribution function of the size of the nonmetallic inclusion.
公开/授权文献
- US20120024077A1 INCLUSION RATING METHOD 公开/授权日：2012-02-02
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