热轧4343/3003/7072铝合金钎焊板的组织与性能

摘要

采用热轧复合工艺生产4343/3003/7072铝合金钎焊板，利用光学显微镜、电子拉伸试验机和扫描电镜，研究了铝合金钎焊板的包覆率、显微组织和力学性能。结果表明，铝合金钎焊板的包覆层合金厚度均匀、复合界面平整，铝合金钎焊板中4343和7072铝合金包覆层的包覆率分别为9．0%和8．1%，铝合金钎焊板的抗拉强度、屈服强度和伸长率分别为118．62 MPa、56．21 MPa和32．48%。%The paper highlighted cladding rate, microstructure and mechanical properties of 4343/3003/7072 aluminum al oy brazing sheet manufactured by hot rol bonding using OM, SEM and electronic tensile testing machine; The results indicated that the clad thickness was uniform and the composite interface was smooth, with cladding rate of 4343 and 7072 clad al oy reaching 9. 0% and 8. 1%, respectively;the tensile strength, yield strength and elongation of the aluminum al oy brazing sheet were 118. 62MPa, 56. 21MPa and 32. 48%, respectively.