| 摘要 |
<p>Two layers of copper sheet (3,4), two layers of copper gauze (1,2) and a copper tube are welded together and vacuum degassed. Solder paste is applied form the end of the copper tube using a syringe, and the two layers of copper gauze are simultaneously joined using a heating plate. Air is degassed using a vacuum pump, and the cooling device is filled with water or methyl alcohol type heat-withstanding fluid. The cooling device is finally soldered and sealed.</p> |
