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Aluminum alloy clad material and method for producing the same, heat exchanger using the aluminum alloy clad material, and method for producing the same
Aluminum alloy clad material and method for producing the same, heat exchanger using the aluminum alloy clad material, and method for producing the same
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机译:铝合金包覆材料及其制造方法,使用该铝合金包覆材料的热交换器及其制造方法
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摘要
A highly corrosion resistant and highly formable aluminum-alloy clad material, a method for producing the same, a heat exchanger using the same and a method for producing the same are shown. The present aluminum-alloy clad material has an aluminum alloy core material, an intermediate layer material clad on one surface of the core material and a brazing filler metal clad on the surface of the intermediate layer material that is not on the core material side, wherein a crystal grain size of the intermediate layer material before brazing heating is 60 μm or more, and in a cross section of the core material in a rolling direction before brazing heating, when R1 (μm) represents the crystal grain size in a plate thickness direction, and R2 (μm) represents the crystal grain size in the rolling direction, R1/R2 is 0.30 or less.
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机译:示出了高度耐腐蚀且高度可成形的铝合金包覆材料,其制造方法,使用该材料的热交换器以及其制造方法。本发明的铝合金包覆材料具有铝合金芯材料,包覆在芯材料的一个表面上的中间层材料和包覆在中间层材料的不在芯材料侧上的表面上的钎料金属,其中当R1(μm)代表板厚方向上的晶粒尺寸时,钎焊加热之前的中间层材料的晶粒尺寸为60μm以上,并且在钎焊加热之前的芯材的沿轧制方向的截面中, R 2(μm)代表轧制方向上的晶粒尺寸,R1 / R2为0.30以下。
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