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Title:
A METAL COMPOSITE PIPE, A PRODUCING METHOD THEREOF AND A CONTINUOUS ANTICORROSION PIPELINE PRODUCED BY THE METAL COMPOSITE PIPES
Document Type and Number:
WIPO Patent Application WO/2008/077312
Kind Code:
A1
Abstract:
A metal composite pipe has a middle pipe and a pair of end rings (3) attached to the opposite ends of the middle pipe respectively. Said middle pipe includes an outer metal pipe (1) and an inner pipe (2). Said end rings (3) are monolayer metal rings. Said inner pipe (2) and said end rings (3) are made of the anticorrosion metal. Said metal composite pipe also has an outer pipe and an inner pipe (5). Said outer pipe includes an outer middle pipe (4) and a pair of end rings (6) attached to the opposite ends of the outer middle pipe (4) respectively. Said inner pipe (5) is an integrate pipe. Said inner pipe (5) and said end rings (6) are made of the anticorrosion metal. A method for producing a metal composite pipe and a continuous anticorrosion pipeline produced by connecting many said metal composite pipes end to end are also disclosed.

Inventors:
LU MINXU (CN)
LIU GUO (CN)
HOU SHIYING (CN)
WANG XIUYUN (CN)
RUAN JINGHONG (CN)
Application Number:
PCT/CN2007/003724
Publication Date:
July 03, 2008
Filing Date:
December 21, 2007
Export Citation:
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Assignee:
BEIJING SAFETECH PIPELINE CO L (CN)
LU MINXU (CN)
LIU GUO (CN)
HOU SHIYING (CN)
WANG XIUYUN (CN)
RUAN JINGHONG (CN)
International Classes:
F16L13/00; B21D39/04; B23P11/00; F16L9/18; F16L39/00; F16L58/00; F16L58/08
Foreign References:
EP0063239A11982-10-27
US6863313B12005-03-08
CN2466470Y2001-12-19
FR2438788A31980-05-09
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (Huibin BuildingN° 8 Beichen Dong Street,Chaoyang District, Beijing 1, CN)
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