发明授权
- 专利标题： Use of a steel composition for the production of an armouring layer of a flexible pipe and the flexible pipe
- 专利标题（中）： 使用钢组合物来生产柔性管的铠装层和柔性管
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申请号： US11886647申请日： 2006-03-14
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公开(公告)号： US07923126B2公开(公告)日： 2011-04-12
- 发明人: Jonas Gudme
- 申请人： Jonas Gudme
- 申请人地址： DK Brondby
- 专利权人： NKT Flexibles I/S
- 当前专利权人： NKT Flexibles I/S
- 当前专利权人地址： DK Brondby
- 代理机构： Pearne & Gordon LLP
- 优先权： DK200500397 20050318
- 国际申请： PCT/DK2006/050007 WO 20060314
- 国际公布： WO2006/097112 WO 20060921
- 主分类号： B32B3/18
- IPC分类号： B32B3/18 ; B32B1/08 ; B32B7/04 ; B32B15/18 ; B65H81/00 ; B29C53/80 ; F16L9/14 ; F16L9/147
摘要：
The invention relates to a use of a duplex steel for the production of an armouring layer of a flexible pipe comprising at least one unbonded armouring layer and at least one unbonded sealing layer wherein the duplex steel comprises in weight percent 0.01-0.05% by weight of carbon (C) at least 0.15% by weight of nitrogen (N) 20.0-23.0% by weight of chromium (Cr) up to 3.0% by weight of nickel (Ni) up to 1.0% by weight of molybdenum (Mo) 3-6% by weight of manganese (Mn) up to 1.0% by weight of copper (Cu) incidental impurities and balance being iron (Fe).
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