发明申请
- 专利标题： PIPE PROVIDED WITH CORROSION PREVENTION LAYER ON THE OUTSIDE SURFACE, PROCESS FOR PRODUCTION OF THE SAME, AND PROCESS FOR PRODUCTION OF ALLOY WIRES TO BE USED FOR CORROSION PREVENTION OF OUTSIDE SURFACE OF THE PIPE
- 专利标题（中）： 在外部表面提供腐蚀防护层的管道，其生产方法以及用于生产用于腐蚀防止管道外表面的合金线的方法
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申请号： US12733569申请日： 2009-03-18
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公开(公告)号： US20100193063A1公开(公告)日： 2010-08-05
- 发明人: Hiroaki Shimizu , Goro Funahashi , Hiroaki Fujii
- 申请人： Hiroaki Shimizu , Goro Funahashi , Hiroaki Fujii
- 优先权： JP2008-074781 20080324; JP2008-136141 20080526
- 国际申请： PCT/JP2009/001193 WO 20090318
- 主分类号： F16L9/14
- IPC分类号： F16L9/14 ; B05D3/00 ; C23C4/16 ; C23C4/08 ; B22D11/112 ; C22C18/00 ; C22C30/04
摘要：
Disclosed is a pipe made of an iron-base material, having a corrosion prevention layer formed on the surface thereof. The corrosion prevention layer includes a Zn—Sn sprayed coating including Sn in a content of more than 1% by mass and less than 50% by mass and the balance composed of Zn. Alternatively, the corrosion prevention layer includes a Zn—Sn—Mg sprayed coating including Sn in a content of more than 1% by mass and less than 50% by mass, Mg in a content of more than 0.01% by mass and less than 5% by mass and the balance composed of Zn. Preferably, the sprayed coating of the corrosion prevention layer includes at least any one of Ti, Co, Ni and P, and the content of each of these elements is more than 0.001% by mass and less than 3% by mass.