文档介绍：冷轧复合对铝合金复合箔组织与性能的影响
摘 要： 研究了采用冷轧复合法生产汽车散热器用铝合金复合箔的工艺，主要研究了冷轧首道次压下率、包覆 层厚度及成品前退火制度对复合箔组织与性能的影响。 结果表明： 皮材 A4045 和芯材 A3003 在 30%~50% 的首道 次压下率下可以实现良好的初结合，冷轧工艺生产的复合箔上、下包覆层的厚度基本一致。最后一道次的精轧
压下率在25%〜35%左右时，复合箔成品的抗下垂性能最佳。复合箔成品前的退火温度应控制在 320〜400'C，退
火温度为400 C时，退火时间以不超过 80min为宜。
关键词 ： 冷轧复合；复合箔；压下率；抗下垂性；退火
Effect of Cold-Rolling Cladding on Microstructure and Properties of Composite Aluminum Alloy Foil
Abstract： The cold-rolling cladding process of composite aluminum alloy foil for automobile heat exchanger was investigated, as well as the effects of percentage reduction of first pass, clad sheet thickness and final annealing schedule on the microstructure and properties of the foil. The results showed that bonding the clad sheets A4045 to the core material A3003 on both sides succeeds initially when the percentage reduction is 30%〜50% of first pass during cold rolling, and the thickness of both the clad sheets of the composite foil are basically the same. The best sagging resistance is available when the percentage reduction of final pass is 25%〜35%. The annealing temperature should be controlled in the range from 320 to 400 C before finish rolling, and the annealing time should control within 80 minutes when annealed at 400 C .
Key words ： cold-rolling cladding; composite foil; percentage reduction; sagging resistance; annealing
世界汽车工业的发展方向为轻量化 [1]，其中， 铝及铝合金以比强度高、 耐腐蚀性佳、 热稳定性好、