不同淬火介质对铝合金电工圆杆性能的影响
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摘要
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。
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 ℃ ×6h 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 55.90IACS%.
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 ℃ ×6h 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 55.90IACS%.
引文
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[2]高红选,张晓燕,黄鑫,等.锆、铜及稀土铈元素对铝电工圆杆组织和性能的影响[J].功能材料,2015,46(3):3073-3076.
[3]韩钰,刘东雨,夏延秋.稀土微合金化对铝合金导电性和耐热性影响的研究[J].热加工工艺,2014,43(14):28-31.
[4]韩小磊,熊柏青,张永安,等.固溶处理对7150铝合金组织和力学性能的影响[J].中国有色金属学报,2010,20(6):1095-1101.
[5]王庆良.稀土对铝导线导电性能和力学性能的影响[J].上海有色金属,1995,16(4):229-231.
[6]胡谢君,张仁国,张晓燕,等.形变热处理工艺对铝合金电工圆杆性能的影响[J].有色金属(冶炼部分),2017(8):59-62.
[7]韩念梅,张新明,刘胜胆,等.固溶处理对7050铝合金强度和断裂韧性的影响[J].中南大学学报(自然科学版),2012,43(3):855-863.
[8]李岩,闫洪,陈小会.Al3Ti/7075铝基复合材料固溶处理工艺研究[J].热加工工艺,2011,40(14):139-142.
[9]BRONNVALL W.Aluminum alloy for electrical conductors[J].Wire Industry,1981,48(569):326-327.
[10]叶鸿声.中强度全铝合金导线在输电线路中的应用[J].电力建设,2010,31(12):14-19.
[11]秦兴国,吴玉程,黄新民,等.稀土元素对高强高导铝合金的性能影响[J].金属功能材料,2010,17(6):17-21.
[12]钞润泽,管西花,管仁国,等.合金成分对铝导线力学性能与导电性能的影响[J].中国有色金属学报,2014,24(4):3164-3169.
[13]刁龙,坚增运,朱满,等.富铈混合稀土对Al-80%Si合金凝固行为和组织的影响[J].中国有色金属学报,2015,25(7):1808-1814.
[14]刘程,陈忠家,杨弋,等.形变热处理工艺对2024铝合金组织及力学性能的影响[J].金属功能材料,2012,19(6):24-28.
[15]ZOU L,PAN Q L,HE Y B,et al.Effect of minor Sc and Zr addition on microstructures and mechanical properties of Al-Zn-Mg-Cu alloys[J].Transactions of Nonferrous Metals Society of China,2007,17(2):340-345.
[16]刘晓涛,崔建忠.Al-Zn-Mg-Cu系超高强铝合金的研究进展[J].材料导报,2005,19(3):47-51.