发明申请
- 专利标题： Method for Applying Lubricant onto Mandrel Bar, Method for Controlling Thickness of Lubricant Film on Mandrel Bar, and Method for Manufacturing Seamless Steel Pipe
- 专利标题（中）： 润滑剂在心轴上的应用方法，芯棒上润滑剂膜厚度控制方法及无缝钢管制造方法
-
申请号： US12482288申请日： 2009-06-10
-
公开(公告)号： US20090293569A1公开(公告)日： 2009-12-03
- 发明人: Kenichi Saito , Sumio Iida
- 申请人： Kenichi Saito , Sumio Iida
- 申请人地址： JP Osaka-shi
- 专利权人： SUMITOMO METAL INDUSTRIES, LTD
- 当前专利权人： SUMITOMO METAL INDUSTRIES, LTD
- 当前专利权人地址： JP Osaka-shi
- 优先权： JP2006-354658 20061228
- 主分类号： B21B25/04
- IPC分类号： B21B25/04 ; B21B45/02
摘要：
In applying a non-graphite-based lubricant composed of, by mass %, 10 to 70% of an oxide-based lamellar compound and 30 to 90% of boric acid onto a mandrel bar, the lubricant film thickness is set from a predetermined master curve for the lubricant film thickness corresponding to an amount of mica. This stably produces a seamless steel pipe of high quality, while preventing seizing marks and internal flaws.
公开/授权文献
信息查询
