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カテゴリ 技術用語
出典:Wikipedia
出典:『Wikipedia』 (2011/05/28 20:08 UTC 版)
A soldering gun is a tool for soldering metals using tin-based solder to achieve a highly conductive contact. The tool uses a pistol shape, and has a trigger style switch so it can be easily operated with one hand. The body of the tool contains a transformer with a single-turn secondary element. A soldering tip, made of a loop of copper wire, is secured to the end of the transformer secondary by screws. When the primary of the transformer is energized, the secondary produces a fraction of a volt and several hundred amperes of current, which rapidly heats the copper tip. Since the tip has a much smaller cross section than the rest of the tubular copper winding, most of the heat is produced near the point of use. A tap on the primary winding is often used to light a pilot lamp which also provides illumination of the workpiece.