不同淬火介质对铝合金电工圆杆性能的影响

摘要

Quenching and cooling performance of quenching medium was measured by KHR-A portable cooling medium performance tester.Effects of water,quenching oil,and PAG quenching medium with different concentrations on performance of electrical round aluminum rods were investigated.The sample treated by 510 ℃ × 6 h solid solution and quenched in 13％ PAG has uniform structure without white particle precipitation in grain.Only a small amount of white particles precipitate in grain boundary.The sample has comprehensive performance with tensile strength of 112 MPa,elongation rate of 10％,and electrical conductivity of 55.90 IACS％.%通过KHR-A便携式冷却介质性能检测仪对淬火介质的淬火冷却性能进行了测量,研究了水、淬火油及不同浓度的PAG淬火介质对铝合金电工圆杆性能的影响.510℃×6h固溶试样经过13％PAG淬火后,试样组织较为均匀,晶粒内基本无白色颗粒物析出,只有在晶界上有少量白色颗粒物析出,试样的综合性能较好,抗拉强度为112 MPa,延伸率为10 ％、导电率达55.90％IACS.