液相线半连续铸造是一种先进的半固态浆制备方法,本文研究了液相线半连续铸造7075Al合金触变成形后的热处理工艺.结果表明,固溶时间对合金力学性能的影响是显著的,时效时间对合金的力学性能也有较大的影响,固溶与时效处理对合金的强化是综合作用的结果,适当延长固溶与时效时间能有效提高合金的抗拉强度,7075合金经475℃,12 h固溶淬火,140℃,22 h时效之后,抗拉强度为474.8 MPa,达到最佳的强化效果.
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