| 摘要 |
A minute work piece in various mechanical or electric component parts is securely brazed by shooting a thin gas flame toward the work piece at a pinpoint while supplying a thread of soldering metal straight to the work piece to heat the work piece and melt the soldering metal, thereby to braze the soldering metal to the work piece. The pinpoint brazing method and device makes it possible to form reliable connection between the conductive terminal of a relay coil and a lead wire wound on a coil bobbin through a sphere-shaped soldering metal. The relay coil thus produced by the brazing method is suitably applicable to various kinds of machinery bringing about vibration, such as automobiles.
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