7000系铝合金厚板喷淋淬火的数值模拟与分析

Numerical simulation and analysis of process of 7000 series alloy thick plates roller-type spray quenching

固溶处理淬火工艺是获得高性能铝合金板的关键环节。笔者从导热微分方程入手,建立了温度场的数学模型。利用ANSYS有限元软件,分别对7000系合金厚板传统淬火工艺以及喷淋淬火工艺过程中的温度场进行了数值模拟,获得了瞬态温度场解和淬火冷却曲线,比较分析了两种淬火工艺温度场对冷却效果的影响。结果表明:7000系合金厚板的辊底式喷淋淬火工艺优于传统工艺,能够获得冷却强度大,所需时间短和均匀性好的效果。

Solution treatment quenching holds a key to achieving high performance aluminum alloy plate.This paper introduces a theoretic model of temperature field established depending on the thermal conduction differential equation.The paper gives a numerical analysis of transient temperature fields and cooling curves in the process of 7000 series aluminum alloy thick plates roller-type spray quenching and conventional quenching in water by using the finite element software ANSYS,and comparison of the cooling effect under two quenching processes.The results indicate that the process of 7000 series aluminum alloy thick plates roller-type spray quenching which is better than conventional quenching,gives a greater cooling intensity,less time short and better uniformity.