发明名称 |
SURFACE HARDENING TREATMENT METHOD OF FERRITE-BASED GRAPHITE CAST IRON MATERIAL |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a surface hardening treatment method which can easily harden the surface of a ferrite-based piece-shaped graphite cast iron material which is extremely reduced in carbon amount in a base organization. <P>SOLUTION: Carbon is diffused in the cast iron material by pressing, rotating and moving a tool to a surface portion of the ferrite-based piece-shaped graphite cast iron material which should be hardened, and after that, a tool passing region is cooled. <P>COPYRIGHT: (C)2012,JPO&INPIT |
申请公布号 |
JP2012082480(A) |
申请公布日期 |
2012.04.26 |
申请号 |
JP20100230499 |
申请日期 |
2010.10.13 |
申请人 |
FUJII HIDETOSHI;KIMURA CHUZOSHO:KK |
发明人 |
FUJII HIDETOSHI;FUKUDA YOYA;HAYASHI KENICHI |
分类号 |
C21D5/00;C21D1/06;C22C37/00 |
主分类号 |
C21D5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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