PIPE JOINT
    1.
    发明公开
    PIPE JOINT 审中-公开
    ROHRVERBINDUNG

    公开(公告)号:EP1536030A4

    公开(公告)日:2005-08-31

    申请号:EP03741295

    申请日:2003-07-09

    申请人: FUJIKIN KK

    摘要: Pipe joint (30) comprising pipe-shaped body (31) in which pipe (32) is inserted from the rear end side; front ring (33) and back ring (34) fitted round portion of the pipe (32) protruding from the rear end side of the body (31); and cap nut (35) for tightening the front ring (33) and back ring (34) so as to fix the pipe (32) to the body (31). The back ring (34) is constituted of an alloy comprising, on the basis of weight %, 0.001 to 0.01% of C, 5% or less of Si, 2% or less of Mn, 0.03% or less of P, 100 ppm or less of S, 50 ppm or less of O, 18 to 25% of Cr, 15 to 25% of Ni, 4.5 to 7.0% of Mo, 0.5 to 3.0% of Cu and 0.1 to 0.3% of N, the remainder composed substantially of Fe and other unavoidable impurities.

    摘要翻译: 包括管状体(31)的管接头(30),其中管(32)从后端侧插入其中; 安装在从本体(31)的后端侧突出的管(32)的圆形部分上的前环(33)和后环(34); 和用于拧紧前环(33)和后环(34)以将管(32)固定到主体(31)的盖螺母(35)。 背环(34)由以重量%计含有C:0.001〜0.01%,Si:5%以下,Mn:2%以下,P:0.03%以下,P:100ppm 以下的S,50ppm以下的O,18〜25%的Cr,15〜25%的Ni,4.5〜7.0%的Mo,0.5〜3.0%的Cu和0.1〜0.3%的N, 基本上是铁和其他不可避免的杂质。