A study on application of sacrificial anode Al-Zn alloy to aluminum heat exchangers
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概要
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The behavior of zinc during brazing and the effect of zinc distribution on corrosion of aluminum heat exchangers were studied. Zinc in the A7072 alloy is reduced more remarkably by brazing in the lowered atmospheric pressure. The zinc loss in fin stocks is only caused by vaporization during brazing, and that in clad tubes is caused both by vaporization and diffusion towards a core material. Zinc-bearing alloys such as A7072 are successfully used as an outside fin stock and an inside inner-clad tube to improve the resistance to corrosion. Brazing under normal pressure is recommended rather than in vacuum on the viewpoint of the residual content and distribution of zinc in the brazed products.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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