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1. (WO2018107655) UNDERWATER WELDING APPARATUS AND METHOD FOR ELECTRIC RESISTANCE WELDING

Pub. No.:    WO/2018/107655    International Application No.:    PCT/CN2017/084475
Publication Date: Fri Jun 22 01:59:59 CEST 2018 International Filing Date: Wed May 17 01:59:59 CEST 2017
IPC: B23K 11/11
Applicants: GUANGZHOU MICRO WELDING EQUIPMENT CO., LTD.
广州微点焊设备有限公司
Inventors: YANG, Shitong
杨仕桐
Title: UNDERWATER WELDING APPARATUS AND METHOD FOR ELECTRIC RESISTANCE WELDING
Abstract:
An underwater welding apparatus for electric resistance welding, comprising an electric resistance welding device (100), a workpiece water tank (106), a welding electrode (104), and water. The electric resistance welding device (100) comprises a welding power source (101) and a spot welder head (102); the welding power source (101) is electrically connected to an electrode clamp (103) on the spot welder head (102) by means of an output cable; the welding electrode (104) is mounted on the electrode clamp (103); the workpiece water tank (106) is mounted on a work table (107) below the spot welder head (102); and water is added into the workpiece water tank (106). The underwater welding apparatus for electric resistance welding is used for implementing an underwater welding method for electric resistance welding. The underwater welding apparatus and method for electric resistance welding extend the process of electric resistance welding from welding in the air environment to underwater welding, solve the technical problem of difficulty in heat dissipation during electric resistance welding, and reduce the loss of a welding electrode end face.