基本信息:
- 专利标题： 机械结构用钢
- 专利标题（英）：Steel for mechanical structuring
- 申请号：CN201080022283.X 申请日：2010-06-01
- 公开(公告)号：CN102439187A 公开(公告)日：2012-05-02
- 发明人： 土田武广 , 增田智一 , 岛本正树 , 永滨睦久
- 申请人： 株式会社神户制钢所
- 申请人地址： 日本兵库县
- 专利权人： 株式会社神户制钢所
- 当前专利权人： 株式会社神户制钢所
- 当前专利权人地址： 日本兵库县
- 代理机构： 中科专利商标代理有限责任公司
- 代理人： 雒运朴
- 优先权： 2009-136657 2009.06.05 JP
- 国际申请： PCT/JP2010/059287 2010.06.01
- 国际公布： WO2010/140596 JA 2010.12.09
- 进入国家日期： 2011-11-22
- 主分类号： C22C38/00
- IPC分类号： C22C38/00 ; C22C38/14 ; C22C38/58
Provided is a steel for mechanical structures which has excellent machinability (particularly, with respect to tool life) for both intermittent cutting with a high-speed steel tool and continuous cutting with a cemented carbide tool while maintaining strength properties required of steel for mechanical structures. Specifically, the steel for mechanical structures comprises 0.05 to 0.9mass% of C, 0.03 to 2mass% of Si, 0.2 to 1.8mass% of Mn, 0.03mass% or less of P, 0.03mass% or less of S, 0.1 to 0.5mass% of Al, 0.002 to 0.017mass% of N, and 0.003mass% or less of O, and further includes 0.05mass% or less (excluding 0mass%) of Ti and/or 0.008mass% or less (excluding 0mass%) of B the remainder being iron and unavoidable impurities. The steel for mechanical structures also satisfies all of the following equations: (1): [N]-0.3[Ti]-1.4[B]<(0.0004/[Al])-0.002; (2): [Ti]-[N]/0.3<0.005; and (3): [B]-([N]-0.3[Ti])/1.4<0.003 when [Ti]-[N]/0.3<0 and [B]<0.003 when [Ti]-[N]/0.3>=0.
公开/授权文献:
- CN102439187B 机械结构用钢 公开/授权日：2014-05-28
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 |