发明授权
- 专利标题： Si-killed steel wire rod and spring
- 专利标题（中）： Si杀死钢丝绳和弹簧
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申请号： US12519179申请日： 2007-12-03
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公开(公告)号： US09290822B2公开(公告)日： 2016-03-22
- 发明人: Tomoko Sugimura , Koichi Sakamoto
- 申请人： Tomoko Sugimura , Koichi Sakamoto
- 申请人地址： JP Kobe-shi
- 专利权人： Kobe Steel, Ltd.
- 当前专利权人： Kobe Steel, Ltd.
- 当前专利权人地址： JP Kobe-shi
- 代理机构： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2006-356308 20061228; JP2006-356309 20061228; JP2006-356311 20061228; JP2006-356313 20061228
- 国际申请： PCT/JP2007/073338 WO 20071203
- 国际公布： WO2008/081674 WO 20080710
- 主分类号： C22C38/06
- IPC分类号： C22C38/06 ; C22C38/04 ; C22C38/02 ; C22C38/00 ; C21C7/04 ; C21C7/06
摘要：
A Si-killed steel wire rod for obtaining a spring excellent in fatigue properties and a spring excellent in fatigue properties obtained from such steel wire rod are provided. In the Si-killed steel wire rod of the present invention, oxide-based inclusions present in the wire rod contain SiO2: 30-90%, Al2O3: 2-35%, MgO: 35% or below (not inclusive of 0%), CaO: 50% or below (not inclusive of 0%), MnO: 20% or below (not inclusive of 0%) and BaO: 0.2-20% respectively, and total content of (CaO+MgO) is 3% or above.
公开/授权文献
- US20100024923A1 SI-KILLED STEEL WIRE ROD AND SPRING 公开/授权日：2010-02-04
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