![CARBURIZED-STEEL-COMPONENT PRODUCTION METHOD, AND CARBURIZED STEEL COMPONENT](/ep/2017/08/02/EP3088550A4/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: CARBURIZED-STEEL-COMPONENT PRODUCTION METHOD, AND CARBURIZED STEEL COMPONENT
- 专利标题(中):HERSTELLUNGSVERFAHREN EINER KOMPONENTE AUS AUFGEKOHLTEM STAHL UND KOMPONENTE AUS AUFGEKOHLTEM STAHL
- 申请号:EP14873478 申请日:2014-12-24
- 公开(公告)号:EP3088550A4 公开(公告)日:2017-08-02
- 发明人: KOYAMA TATSUYA , KUBOTA MANABU
- 申请人: NIPPON STEEL & SUMITOMO METAL CORP
- 专利权人: NIPPON STEEL & SUMITOMO METAL CORP
- 当前专利权人: NIPPON STEEL & SUMITOMO METAL CORP
- 优先权: JP2013273309 2013-12-27
- 主分类号: C22C38/00
- IPC分类号: C22C38/00 ; C21D1/06 ; C21D9/00 ; C21D9/32 ; C21D9/40 ; C22C38/04 ; C22C38/06 ; C22C38/28 ; C22C38/32 ; C22C38/60 ; C23C8/02 ; C23C8/22
摘要:
Provided is a production method of a carburized steel component, which can improve a gas carburizing property of a steel component having a high Si content, and suppress deterioration of productivity. The present production method includes a preliminary gas carburizing process, and a main gas carburizing process. In the preliminary gas carburizing process, a steel component having a chemical composition that contains C, Si, Mn, and Cr and, in mass%, satisfies Formula (1) is subjected to a gas carburizing treatment at a carburizing temperature T p that satisfies Formula (A) for 10 to less than 20 hours. In the main gas carburizing process, a gas carburizing treatment is performed at a carburizing temperature T r (°C) that satisfies Formula (B) for a carburizing time t r (minutes). 6.5
摘要(中):
本发明提供一种渗碳钢部件的制造方法,其能够提高Si含量高的钢成分的气体渗碳性,抑制生产率的降低。 本生产方法包括初步气体渗碳工艺和主要气体渗碳工艺。 在预备气体渗碳处理中,以满足式(1)的含有C,Si,Mn,Cr的化学组成的钢成分满足式(1),在满足渗碳温度T p的条件下进行气体渗碳处理 式(A)10小时至20小时以内。 在主气体渗碳处理中,在满足式(B)的渗碳时间t r(分钟)的渗碳温度T r(℃)下进行气体渗碳处理。 6.5 <3.5 Si%+ Mn%+ 3 Cr%≤18 800‰T p <163×ln CP + 0.6'41×ln 3.5×Si%+ Mn%+ 3×Cr%+ 950 4 <13340 / T r + 273.15'ln tr <7其中,在预渗碳过程中,在公式中的CP被渗碳期间的碳势取代。
IPC结构图谱:
C | 化学;冶金 |
--C22 | 冶金(铁的冶金入C21);黑色或有色金属合金;合金或有色金属的处理 |
----C22C | 合金 |
------C22C38/00 | 铁基合金,例如合金钢 |