ELECTROFUSION FITTING
    9.
    发明申请
    ELECTROFUSION FITTING 有权
    电子配件

    公开(公告)号:US20110193339A1

    公开(公告)日:2011-08-11

    申请号:US13122746

    申请日:2009-10-08

    IPC分类号: F16L47/03 F16L13/02 B23K31/00

    摘要: The invention relates to electrofusion fittings. Hitherto, electrical leads (13) to electrofusion fittings have been passed through the gap between adjacent metal pipe length (1) ends, that are subsequently welded. The electrical leads remain in the weld metal as a contaminant that can be harmful to the integrity of the weld, and the objection of the invention is to eliminate the problem. The objection is met by a construction of electrofusion fitting comprising a tubular length of thermoplastic material (3), of an outer diameter commensurate with the inner diameter of the ends of a compatible thermoplastic material lining of adjacent lengths of metal pipe (1), there being at each end of the fitting at least two heater coils on or in close proximity to the outer surface of the fitting, electrical leads from the heater coils extending through the fitting to emerge at the inner surface of the tubular length, for connection to a source of electrical power.

    摘要翻译: 本发明涉及电熔配件。 到目前为止,电引线(13)到电熔接头已通过相邻的金属管长度(1)端之间的间隙,随后被焊接。 电引线作为可能对焊接完整性有害的污染物留在焊接金属中,本发明的目的是消除问题。 反应是通过电熔配件的构造实现的,其包括管状长度的热塑性材料(3),其外径与相邻长度的金属管(1)的相容的热塑性材料衬里的端部的内径相当,在那里 在配件的每个端部处至少两个加热器线圈在配件的外表面上或紧邻配件的外表面,来自加热器线圈的电引线延伸穿过配件以在管状长度的内表面处出现,以连接到 电源。