Electric heating – Metal heating – By arc
Patent
1982-12-30
1984-06-26
Shaw, C. C.
Electric heating
Metal heating
By arc
219137PS, B23K 910
Patent
active
044568134
ABSTRACT:
In a welding apparatus employing a switching element between a power source and a filler wire, a protection circuit operates to discontinue the function of the switching element when a short-circuit is detected between, for example, the filler wire and a welding electrode, so that the switching element is protected from damage due to an overcurrent.
Kato Yoshiaki
Mizuno Masanori
Mizuno Takaji
Mitsubishi Denki & Kabushiki Kaisha
Shaw C. C.
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