6016铝合金汽车板的气垫炉式固溶工艺（英文）

发布时间：2018-02-24 17:20

本文关键词： 铝合金汽车板固溶处理成形性烤漆硬化性　出处：《材料热处理学报》2015年S1期 　论文类型：期刊论文

【摘要】：为了研究铝合金汽车板气垫炉生产线的固溶工艺,利用模拟气垫炉制备的高速热风循环式固溶炉和时效炉,研究了固溶时间和冷却方式对6016铝合金汽车板固溶组织的影响及变化规律,及其对模拟烤漆前后的力学性能及成形性能、烤漆硬化性的影响规律。结果表明:水淬和风淬两种方式下,固溶时间对合金基体中析出相及再结晶过程的变化规律相似;随固溶时间增加,可溶析出相Mg2Si、Al1.9Cu Mg4.1Si3.3、Al0.56Mg0.44等逐渐溶解,5 min时完全溶解,Al2Fe3Si3等为不可溶合金相则基本没有变化;固溶时6016的再结晶速度非常快,1.4 min时其再结晶过程已进行完毕,随固溶时间增加,再结晶晶粒尺寸和形态变化较小;实验板材的强度、维氏硬度及成形性指标A、IE、n、r15在固溶时间为5~15 min时保持稳定,水淬的力学性能和烤漆硬化效果略微高于风淬,而成形性指标A、IE、n、r15则差别不大,风淬的A值在模拟烤漆前略优于水淬,风淬板形明显优于水淬,ABS板可用风淬代替水淬。
[Abstract]:In order to study the solid solution process of aluminum alloy automobile plate air cushion furnace production line, the high speed hot air circulating solid solution furnace and aging furnace were prepared by simulated air cushion furnace. The effect of solution time and cooling method on the solid solution structure of 6016 aluminum alloy automobile plate and its mechanical properties and formability before and after simulated baking paint were studied. The results show that the variation of solution time on the precipitation phase and recrystallization process in alloy matrix is similar to that of water quenching and wind quenching, and increases with the increase of solution time. The soluble precipitated phase Mg2Si-Al 1.9Cu Mg4.1Si3.3N Al 0.56mg 0.44 and so on gradually dissolved for 5 min, the completely dissolved Al _ 2FE _ 3Si _ 3 was insoluble, the recrystallization rate of 6016 was very fast and the recrystallization process was completed at 1.4 min, and the recrystallization process was increased with the solution time. The strength, Vickers hardness and formability of the experimental sheet are stable when the solution time is 5 ~ 15 min, and the mechanical properties of water quenching and the hardening effect of baking paint are slightly higher than those of air quenching, and the change of recrystallization grain size and morphology is relatively small, and the strength, Vickers hardness and formability of the experimental sheet are stable when the solution time is 5 ~ 15 min. However, the formability index Ani-IEN / R15 has little difference. The A value of air quenched is slightly better than that of water quenching before simulated baking paint, and the shape of air-quenched sheet is obviously better than that of water-quenched ABS sheet instead of water-quenched.
【作者单位】：东北大学轧制技术及连轧自动化国家重点实验室;
【基金】：辽宁省教育厅资助项目(L2013113)
【分类号】：TG166.3

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