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THIN WALL FIN MATERIAL EXCELLENT IN EROSION RESISTANCE, MANUFACTURING METHOD OF THIN WALL FIN MATERIAL EXCELLENT IN EROSION RESISTANCE, AND MANUFACTURING METHOD OF HEAT EXCHANGER
THIN WALL FIN MATERIAL EXCELLENT IN EROSION RESISTANCE, MANUFACTURING METHOD OF THIN WALL FIN MATERIAL EXCELLENT IN EROSION RESISTANCE, AND MANUFACTURING METHOD OF HEAT EXCHANGER
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机译：薄壁翅片材料具有优异的耐蚀性，薄壁翅片材料中具有耐蚀性的制造方法和换热器的制造方法
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摘要
PROBLEM TO BE SOLVED: To provide thin wall fin material excellent in erosion resistance, and a manufacturing method of the thin wall fin material excellent in erosion resistance.;SOLUTION: A thin wall fin material excellent in erosion resistance consists of an aluminum alloy having a composition containing, by mass%, Mn:1.0 to 2.0%, Si:0.1 to 2.0%, Zn:0.1 to 3.0%, has sheet thickness of 0.06 nm or less, the melting point of 610°C to 645°C, average particle diameter of a recrystallized structure after a brazing heat treatment is 200 μm or more, average cross section distance of grain boundary, which is average grain boundary length (μm) of the cross section of the recrystallized grain after the brazing heat treatment/sheet thickness (μm) of the fin material, is 1.5 or more and recrystallization rate at 577°C during temperature rise after the brazing heat treatment is 97% or more.;SELECTED DRAWING: Figure 5;COPYRIGHT: (C)2019,JPO&INPIT
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