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1. 发明授权

US4603463A In situ repair of a failed compression fitting 失效
标题翻译：原位修复失效的压缩配件
公开(公告)号：US4603463A
公开(公告)日：1986-08-05
申请号：US762489
申请日：1985-08-05
申请人： Ronald R. Wolbert , Walter G. Jandrasits
发明人： Ronald R. Wolbert , Walter G. Jandrasits
IPC分类号： B23G1/48 , B23G9/00 , B23P6/00 , B23P6/04
CPC分类号： B23P6/00 , B23G1/48 , B23G9/009 , Y10T29/49728 , Y10T29/49746 , Y10T29/49995 , Y10T408/893
摘要： A method and apparatus for the in situ repair of a failed compression fitg is provided. Initially, a portion of a guide tube is inserted coaxially in the bore of the compression fitting and locked therein. A close fit dethreading device is then coaxially mounted on the guide tube to cut the threads from the fitting. Thereafter, the dethreading device and guide tube are removed and a new fitting is inserted onto the dethreaded fitting with the body of the new fitting overlaying the dethreaded portion. Finally, the main body of the new fitting is welded to the main body of the old fitting whereby a new threaded portion of the replacement fitting is precisely coaxial with the old threaded portion. If needed, a bushing is located on the dethreaded portion which is sized to fit snugly between the dethreaded portion and the new fitting. Preferably, the dethreading device includes a cutting tool which is moved incrementally in a radial direction whereby the threads are cut from the threaded portion of the failed fitting in increments.
摘要翻译：提供了一种用于原位修复失效的压缩配件的方法和装置。最初，导管的一部分同轴地插入压缩配件的孔中并锁定在其中。然后将紧密配合的脱离装置同轴地安装在导管上以从配件切割螺纹。此后，去除脱离装置和引导管，并且将新的配件插入到可拆卸的配件上，并将新配件的主体重叠在可拆卸的部分上。最后，新配件的主体焊接到旧配件的主体上，由此更换配件的新螺纹部分与旧的螺纹部分精确地同轴。如果需要，衬套位于可拆卸部分上，其尺寸适于紧密地配合在可拆卸部分和新配件之间。优选地，脱离装置包括在径向方向上逐渐移动的切削工具，从而螺纹以增量从失效接头的螺纹部分切割。

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