基本信息:
- 专利标题： Carburized component and manufacturing method thereof
- 专利标题（中）：Aufgekohlte Komponente und Herstellungsverfahrendafür
- 申请号：EP07008008.0 申请日：2007-04-19
- 公开(公告)号：EP1847631A1 公开(公告)日：2007-10-24
- 发明人： Hattori, Atsushi , Kano,Takashi c/oDaido Steel Co.,Ltd. Daido Corporate Research&Development Center
- 申请人： Daido Steel Co.,Ltd.
- 申请人地址： 1-10, Higashisakura 1-chome Higashi-ku Nagoya Aichi 461-8581 JP
- 专利权人： Daido Steel Co.,Ltd.
- 当前专利权人： Daido Steel Co.,Ltd.
- 当前专利权人地址： 1-10, Higashisakura 1-chome Higashi-ku Nagoya Aichi 461-8581 JP
- 代理机构： Böhm, Brigitte
- 优先权： JP2006116308 20060420; JP2007035632 20070216
- 主分类号： C23C8/22
- IPC分类号： C23C8/22 ; C22C38/18
摘要：
The carburized component of the present inventions is characterized by
having a base metal containing:
C: 0.10% to 0.40%;
Si: 0.05% to 0.8%;
Mn: 0.35% to 1.2%;
Cr: 2.0% to 6.0%; and
remnant including Fe and inevitable impurities,
having a carburized layer formed on a surface layer portion of said base metal, having a grain boundary oxidized layer depth of 1µm or less on a surface thereof and an average C concentration SC of 1. 5% to 4. 0% at 25µm deep from the surface, and
adjusted so as to satisfy:
1.76SC-1.06
said carburized layer also has a carbide area ratio of 15% to 60% at 25µm deep from the surface, an fine carbide area ratio, having a dimension of 0.5µm to 10µm, constitutes 80% or more of the total, and further 70% by volume or more of said fine carbide is M 3 C type.
摘要（中）：
having a base metal containing:
C: 0.10% to 0.40%;
Si: 0.05% to 0.8%;
Mn: 0.35% to 1.2%;
Cr: 2.0% to 6.0%; and
remnant including Fe and inevitable impurities,
having a carburized layer formed on a surface layer portion of said base metal, having a grain boundary oxidized layer depth of 1µm or less on a surface thereof and an average C concentration SC of 1. 5% to 4. 0% at 25µm deep from the surface, and
adjusted so as to satisfy:
1.76SC-1.06
said carburized layer also has a carbide area ratio of 15% to 60% at 25µm deep from the surface, an fine carbide area ratio, having a dimension of 0.5µm to 10µm, constitutes 80% or more of the total, and further 70% by volume or more of said fine carbide is M 3 C type.
本发明的渗碳组分的特征在于含有：C：0.10〜0.40％的贱金属; Si：0.05〜0.8％ Mn：0.35〜1.2％ Cr：2.0〜6.0％ 并且包含Fe和不可避免的杂质的残留物，具有形成在所述贱金属的表层部分上的渗碳层，其表面上的晶界氧化层深度为1μm以下，平均C浓度SC为1.5％〜 在表面25μm深处为0.4％，调整为满足：1.76SC-1.06
公开/授权文献:
- EP1847631B1 Carburized component and manufacturing method thereof 公开/授权日：2008-12-17