高强铝合金接触加热技术研究  

Research on contact heating technology for high strength aluminum alloy

作　　者：王子健 耿会程 王义林[1] 张宜生[1] 李世其 Wang Zijian;Geng Huicheng;Wang Yilin;Zhang Yisheng;Li Shiqi(School of Materials and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]华中科技大学材料科学与工程学院,湖北武汉430074

出　　处：《锻压技术》2020年第7期178-181,共4页Forging & Stamping Technology

基　　金：国家自然科学基金资助项目(51905189,U1760205);国家科技重大专项(2018ZX04023001)。

摘　　要：在铝合金热成形工艺中,加热固溶有重要作用,但传统的辐射加热方式的加热效率低,严重影响了工艺节拍。而接触加热具有加热速度快、加热温度均匀的特点。设计了一种接触加热装置,用于对高强铝合金板料进行快速加热,并对该装置表面的温度分布及其对高强铝合金板料的加热特性进行了研究。研究结果表明,该加热装置具有较大面积的温度均匀区域,适用于对高强铝合金板料进行固溶处理,同时,发现采用接触加热方法可以有效地减少固溶升温阶段所需的时间,提高板料加热效率。试验结果表明,20 s内即可将高强铝合金板料加热至指定温度,证明高强铝合金接触加热快速固溶是一种高效的铝合金固溶方法。In the hot forming process of aluminum alloy,heating solution plays an important role,but the heating efficiency of traditional radiant heating method is low to seriously affect the process beat.However,the contact heating has the characteristics of fast heating speed and uniform heating temperature.Therefore,the contact heating device was designed to heat high strength aluminum alloy sheets quickly,and the temperature distribution on the contact surface of device and the heating characteristics of high strength aluminum alloy sheets were studied.The results show that the heating device has a larger area of uniform temperature,which is suitable for solution treatment of high strength aluminum alloy sheets.Meanwhile,the time required for solution heating stage is reduced effectively by the contact heating mothed,and the heating efficiency of sheets is improved.The test results show that the high strength aluminum alloy billet is heated to the set temperature in 20 seconds,and the contact heating rapid solution of high strength aluminum alloy is proved to be a highly efficient solution treatment method for aluminum alloy.

关 键 词：高强铝合金 接触加热 固溶处理 热成形 加热效率 

分 类 号：TG306[金属学及工艺—金属压力加工]