| 摘要 |
PURPOSE:To restrain eluation of copper and eliminate blue water problem by a method wherein a metal, having an ionization tendency larger than the same of the constituting metal of heat exchanging section, is connected electrically to the heat exchanging section consisting of copper or copper alloy by employing both of adhesive liquidous sealing agent and foaming elastic body. CONSTITUTION:A metal 5a (Mg, for example), having ionization tendency larger than the same of the heat exchanging section constituting metal, is connected electrically to the heat exchanging section 4 consisting of copper or copper alloy through both of the adhesive liquidous sealing agant 5s (silicon sealing agent, for example) and the foaming elastic body 5b as well as mounting bolts 5d for clamping them. As a result, the metal, having ionization tendency larger than copper, eluates positively and the eluation of copper can be restrained, therefore, the blue water problem will never be caused. On the other hand, the electrically connected section may be expected to use it in water for a long period of time and maintain the function thereof by a method wherein the electrically connected section is filled perfectly with the adhesive liquidous sealing agent. |
