摘要
采用带材轧制法,用Ag30CuZnSn钎料带包裹硼酐、四氟硼酸钾、氟化钾构成的药芯粉末制备药芯银钎料,研究Ag30CuZnSn药芯钎料在T1紫铜表面的润湿铺展性能。利用Ag30CuZnSn药芯钎料火焰钎焊T1紫铜,观察钎缝的微观组织,测试的钎缝力学性能,并与Ag30CuZnSn钎料+FB102的性能进行比较。结果表明:Ag30CuZnSn药芯钎料在紫铜表面的铺展面积略高于Ag30CuZnSn钎料+FB102。采用Ag30CuZnSn药芯钎料火焰钎焊紫铜所得的钎焊接头力学性能能满足使用要求,剪切断裂位置均位于母材。钎缝微观组织主要由CuZn相、Ag基固溶体、Cu基固溶体构成,这一结果与Ag30CuZnSn钎料+FB102所得钎缝组织构成一致。
The flux cored brazing filler metal was made up of Ag30CuZnSn brazing filler strip and powders containing B_(2)O_(3),KBF_(4) and KF through the method of strip rolling.The wettability of Ag30CuZnSn cored brazing filler metal on the surface of T1 copper was studied.T1 copper was brazed by flame brazing using Ag30CuZnSn cored brazing filler metal.The microstructure of brazed seam was observed and the mechanical properties of the Ag30CuZnSn/T1 copper brazed joints was tested.The properties were compared to these of joints brazed by Ag30CuZnSn filler metal+FB102.The results show that the spreading area obtained by Ag30CuZnSn cored brazing filler metal was slightly higher than that obtained by Ag30CuZnSn filler metal+FB102.The mechanical properties of Ag30CuZnSn/T1 copper brazed joints formed by flame brazing can meet the use requirements.The shear fracture positions are all located in the base metal.The microstructure of brazed joint is mainly composed of CuZn phase,Ag-based solid solution and Cu-based solid solution,which is consistent with the microstructure of brazed joint obtained by Ag30CuZnSn filler metal+FB102.
作者
张雷
吴铭方
浦娟
薛松柏
王水庆
娄银斌
钱似舰
ZHANG Lei;WU Mingfang;PU Juan;XUE Songbai;WANG Shuiqing;LOU Yinbin;QIAN Sijian(College of Material Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang 212000,China;College of Material Science and Engineering,Nanjing University of Aeronautics And Astronautics,Nanjing 210016,China;Zhejiang Xinrui Welding Technology Co.,Ltd.,Shaoxing 312400,China)
出处
《热加工工艺》
北大核心
2022年第1期39-41,45,共4页
Hot Working Technology
