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    • 4. 发明申请
    • JOINING OF METALLIC PIPE LINED WITH THERMOPLASTIC POLYMER
    • 与热塑性聚合物连接的金属管接头
    • WO1991017362A1
    • 1991-11-14
    • PCT/CA1991000146
    • 1991-05-01
    • DU PONT CANADA INC.WHITE, GeorgeKING, David, Campbell
    • DU PONT CANADA INC.
    • F05L58/18
    • F16L58/181Y10T29/49428
    • A method of joining two sections of metallic pipe (1), each of which has a thermoplastic polymer lining (3), to form corrosion resistant joints is disclosed. The method comprises inserting a sleeve (10) into each section of two pipes (1) that are to be joined so as to form a fluid tight seal between the liner (3) and the sleeve (10). The end of each section of pipe is then bevelled, and the two sections are welded together so as to form a corrosion resistant weld between each section of pipe and each sleeve and between each of the sleeves. The method is particularly useful in the lining of metallic pipe in the field e.g. in pipelines, without having to form flange joints.
    • 公开了一种将金属管(1)的两个部分接合,其中每一个具有热塑性聚合物衬里(3)以形成耐腐蚀接头的方法。 该方法包括将套筒(10)插入待连接的两个管道(1)的每个部分中,以在衬套(3)和衬套(10)之间形成流体密封。 然后将每个管段的末端倾斜,并将两个部分焊接在一起,以便在管道的每个部分和每个套筒之间以及每个套筒之间形成耐腐蚀焊缝。 该方法在本领域的金属管的衬里中特别有用。 在管道中,无需形成法兰接头。