To provide a method of and an apparatus for determining quality of resistance brazing, by which presence/absence of a brazing material is discriminated.
The determining apparatus 10 is provided in a resistance brazing apparatus 30 gripping copper parts 41, 42 of a weld object between which a brazing material 43 is interposed between a pair of electrodes 31, 32, applying pressure to the copper parts 41, 42, and feeding power to the electrodes 31, 32 in such a state. The judging apparatus 10 has a control unit 11 controlling the amount of heat generated at the pair of electrodes 31, 32 during resistance brazing, a power feed time measurement unit 12 measuring a power feed time T to electrodes 31, 32 required from when an amount of displacement of the distance between the pair of electrodes 31, 32 reaches a first amount of displacement to a second amount of displacement, and a quality determination unit 13 judging there was a brazing material if the power feed time T is a predetermined threshold value Ta or less and determining there was no brazing material if the power feed time T is larger than the predetermined threshold value Ta.
SUZUKI KAZUYOSHI
FUSHIMOTO HAJIME
| JP2006224132A | 2006-08-31 | |||
| JPH01321072A | 1989-12-27 | |||
| JPS61289964A | 1986-12-19 | |||
| JPS61255759A | 1986-11-13 | |||
| JPS62286666A | 1987-12-12 |
Jun Tsuruta
Tetsuro Shimada
Tetsuo Miyamoto
Koichi Itsubo
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