锻压技术

高强铝合金接触加热技术研究

英文标题：Research on contact heating technology for high strength aluminum alloy

作者：王子健耿会程王义林张宜生李世其

单位：华中科技大学

分类号：TG306

出版年,卷(期):页码：2020,45(7):178-181

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.

基金项目：

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

王子健（1989-），男，博士,助理研究员 E-mail：wangzijian@hust.edu.cn 通讯作者：张宜生（1951-），男，硕士，教授 E-mail：zhangys@mail.hust.edu.cn

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