锌合金火焰钎焊用钎料研究
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摘要
以4种钎料对ZAT10锌合金进行了火焰钎焊。通过研究4种钎料的熔化温度、浸润性能、钎焊接头力学性能和钎缝气孔率,从中选取综合性能较优的SnZn-1钎料;采用扫描电镜(SEM)、X射线能谱仪(EDS)进一步研究了该钎焊接头的组织和成分。研究结果表明,SnZn-1钎焊接头的抗拉强度高达62 MPa、气孔率约为10%,钎缝界面区组织大部分是均匀的等轴晶组织,且发生了钎料和母材的相互溶解和扩散,从而获得优质的钎焊接头。
Four filler metals were applied to braze zinc alloy by flame brazing.Based on the results of melting temperature,wettability,the mechanical properties and the porosity of brazed seam,the ideal filler metal Sn Zn-1 for Zinc alloy was successfully obtained.The microstructure and compounds of the brazed joint were further studied by SEM and EDS.The results show that the tensile strength of Sn Zn-1 brazed joint reaches up to 62 MPa,and the porosity rate is about 10%.The most of interface microstructure are uniform equiaxed structure,and the mutual diffusion and dissolution of elements occur between the base metal and the filler metal,which forms the better brazed joint.
Four filler metals were applied to braze zinc alloy by flame brazing.Based on the results of melting temperature,wettability,the mechanical properties and the porosity of brazed seam,the ideal filler metal Sn Zn-1 for Zinc alloy was successfully obtained.The microstructure and compounds of the brazed joint were further studied by SEM and EDS.The results show that the tensile strength of Sn Zn-1 brazed joint reaches up to 62 MPa,and the porosity rate is about 10%.The most of interface microstructure are uniform equiaxed structure,and the mutual diffusion and dissolution of elements occur between the base metal and the filler metal,which forms the better brazed joint.
引文
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[4]赵立华.超高强铝合金研究现状和发展趋势[J].四川兵工学报,2011,10(32):147-150.
[5]郭清超,亢世江,孙福洋.锌基合金感应钎焊工艺的研究[J].热加工工艺,2014,43(15):174-176.
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[7]甄立玲,唐蓓,马冰,等.变形锌合金冷压焊接头组织及连接机理研究[J].稀有金属材料与工程,2013,42(2):472-475.
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[10]尹彩流,韩艳红,零妙然,等.微量稀土La对Sn-Zn-Al无铅焊料性能的影响[J].特种铸造及有色合金,2013,32(6):495-496.
[11]魏秀琴,周浪,黄惠珍.氧化对Sn-Zn系无铅焊料润湿性的影响[J].中国有色金属学报,2009,19(1):174-175.
[12]刘亮岐,徐金华,陈胜珍,等.添加Ag元素对铝软钎焊用Sn-1.5Zn系钎料性能的影响[J].材料工程,2010(10):22-23.
[13]王慧,薛松柏,陈文学,等.不同钎剂Sn-Zn系无铅钎料润湿特性的影响[J].焊接学报,2009,30(1):5-6.
[14]黄惠珍,魏秀琴,帅歌旺,等.Sn-9Zn-x P无铅焊料合金性能研究[J].材料工程,2010(3):4-5.
[2]Ma D,Li Y Jones H,et al.Unidirectional solidification of a Zn-rich Zn-2.17%Cu hypo-peritectic alloy[J].Science and Technology of Advanced Material,2001(2):127-130.
[3]张喜民,肖来荣,温燕宁,等.挤压Zn-Cu-Ti合金组织与性能研究[J].材料科学与工程学报,2010,28(4):1-7.
[4]赵立华.超高强铝合金研究现状和发展趋势[J].四川兵工学报,2011,10(32):147-150.
[5]郭清超,亢世江,孙福洋.锌基合金感应钎焊工艺的研究[J].热加工工艺,2014,43(15):174-176.
[6]徐维普,吴毅雄,刘秀忠,等.锌铝合金的钎焊研究[J].机械工程材料,2004,28(7):32-35.
[7]甄立玲,唐蓓,马冰,等.变形锌合金冷压焊接头组织及连接机理研究[J].稀有金属材料与工程,2013,42(2):472-475.
[8]罗龚,黎德育,袁国辉,等.锌合金压铸件电镀层起泡成因与消除对策[J].电镀与涂饰,2015,34(21):1252-1257.
[9]甄立玲,齐果,王英,等.高强度锌合金冷压焊工艺及接头组织性能[J].兵器材料科学与工程,2010,33(6):76-78.
[10]尹彩流,韩艳红,零妙然,等.微量稀土La对Sn-Zn-Al无铅焊料性能的影响[J].特种铸造及有色合金,2013,32(6):495-496.
[11]魏秀琴,周浪,黄惠珍.氧化对Sn-Zn系无铅焊料润湿性的影响[J].中国有色金属学报,2009,19(1):174-175.
[12]刘亮岐,徐金华,陈胜珍,等.添加Ag元素对铝软钎焊用Sn-1.5Zn系钎料性能的影响[J].材料工程,2010(10):22-23.
[13]王慧,薛松柏,陈文学,等.不同钎剂Sn-Zn系无铅钎料润湿特性的影响[J].焊接学报,2009,30(1):5-6.
[14]黄惠珍,魏秀琴,帅歌旺,等.Sn-9Zn-x P无铅焊料合金性能研究[J].材料工程,2010(3):4-5.