ULTRA-LOW-THERMAL-INPUT FAST-FREQUENCY WELDING REPAIR METHOD FOR LARGE BLADE

WIPO Patent Application WO/2022/252462

A1

An ultra-low-thermal-input fast-frequency welding repair method for a large blade. The method comprises the following steps: putting a large blade repair piece into a protective gas uniform distribution apparatus for fixation; a manipulator carrying a welding gun to enter the protective gas uniform distribution apparatus; adjusting the positions, postures, etc. of the manipulator and the welding gun, and setting welding parameters; a fast-frequency pulse welding power source performing no-load output; starting the welding repair; during a welding repair process, a welding image defect recognition system performing welding image collection and analyzing whether there is a welding defect in real time, and adjusting the welding parameters according to the welding defect type and the defect severity level; and after the welding repair is finished, the fast-frequency pulse welding power source and a wire feeding apparatus stopping the output.

WANG ZHENMIN (CN)
JIANG DONGHANG (CN)
WU JIANWEN (CN)
XU MENGJIA (CN)
ZHANG QIN (CN)
WU XIANGMIAO (CN)

PCT/CN2021/122570

December 08, 2022

October 08, 2021

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UNIV SOUTH CHINA TECH (CN)

B23K9/09; B23K9/095; B23K9/10; B23K9/133; B23K9/16; B23K9/32

CN113231715A	2021-08-10
CN109108430A	2019-01-01
CN112116560A	2020-12-22
CN111975178A	2020-11-24
CN109108529A	2019-01-01
CN102424971A	2012-04-25
CN110675370A	2020-01-10
CN210080919U	2020-02-18
CN112083017A	2020-12-15
US20070023403A1	2007-02-01
CN111283342A	2020-06-16

GUANGZHOU HUAXUE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)

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