三层复合铝合金带材热轧复合包覆率的计算

来源期刊：中国有色金属学报1998年第2期

论文作者：甘卫平 韦家弘 肖亚庆 周江

文章页码：206 - 209

关键词：包覆率 热轧复合 铝合金

Key words：clad ratio , hot roll bonding , aluminum alloy

摘    要：三层复合铝合金带材是以铝锰系合金为芯材、 双面包覆铝硅系钎料合金的多层复合材 料， 是制造管带钎焊式热交换器的重要材料之一，在实际钎焊过程中对钎料层的包覆率有严格要求。分析了影响三层复合铝合金带材热轧复合时包覆率的变化因素， 结合生产工艺要求， 提出了热轧复合包覆率的数学模型，为实际生产中包覆率的控制提供了依据。

Abstract: The sandwich aluminum alloy sheet is an important material for heat exchangers of automobile. The sheet comprises a core of Al-Mn alloy and clads of Al-Si alloy on both sides. In order to obtain a good brazeability the clad ratio of about 10% is needed, below or above this value may result in unqualified products. The effect of properties of the alloy and rolling parameters on the clad ratio was analyzed, and a model to calculate the clad ratio after hot rolling was put forward. According to this model, the clad ratio can be monitored in the production process.