| 摘要 |
PROBLEM TO BE SOLVED: To provide a cylindrical soldering gun excellent in corrosion resistance and durability. SOLUTION: The cylindrical soldering gun is formed of a plurality of members split so as to be centered at a through-hole, and the members are made of copper covered with a nonwettable substance. The through-hole formed by combining the members has a size of 0.5-3 mm which is hardly covered. Further, since the soldering gun can be manufactured using a copper member having high thermal conductivity, work performance can be improved, and since the soldering gun properly covered with the substance nonwettability for solder can be manufactured, the copper can be prevented from melting in the solder unlike a conventional one, and high-quality soldering can be achieved. COPYRIGHT: (C)2009,JPO&INPIT
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