摘要
为了提高汽车散热器用铝合金复合带材的强度和改善散热器在工作温度下的稳定性,在工业生产条件下研制出4045/363/353新型铝合金复合带材。主要研究了不同的成品退火温度对该复合带材组织和力学性能的影响,确定了0.25 mm厚度4045/363/353铝合金复合带材的成品退火工艺制度为420℃(9+1)h。该复合带材的抗拉强度为171.5 N/mm2,伸长率为17.4%,强度比原来的434、LQ2-1铝合金复合带材的提高40 N/mm2～50 N/mm2,主要是由于芯材363铝合金的合金化元素含量比原来3003铝合金芯材高一些的结果。
In order to increase the mechanical properties of aluminum alloy strip used for automobile radiator and improve the stability of the radiator at the working temperature,the new 4045/363/353 aluminum alloy strip have been produced at the industry condition.The influence of annealing temperature on microstructure and mechanical properties of the composite strip has been studied.The finished annealing temperature for 4045/363/353 aluminum alloy 0.25 mm sheet has been settled at 420℃ with 9 h ＋ 1 h holding.The tensile strength of the composite sheet is 171.5 N/mm2 and its elongation is 17.4%.The strength is 40 N/mm2 to 50 N/mm2 higher than that of 434,LQ2-1 alumunium alloy.That is due to 363 aluminum alloy has been used as the core,which possesses higher alloying elements than that of original 3003 core alloy.
出处
《轻合金加工技术》
CAS
北大核心
2011年第2期33-35,共3页
Light Alloy Fabrication Technology
关键词
铝合金
复合带材
包覆率
退火工艺
aluminum alloy
composite strip
coating rate
annealing process
