汽车用制动器衬片的扩散焊接头组织和力学性能研究  

Study on Microstructure and Mechanical Properties of Diffusion Welded Joints for Automotive Brake Pads

作　　者：张振山[1] 娄海汇[1] 高峰[1] 魏志强[1] 

机构地区：[1]河北机电职业技术学院,河北邢台054000

出　　处：《热加工工艺》2015年第15期207-208,共2页Hot Working Technology

摘　　要：采用预镀铜合金的20钢基板和预先压制好的Cu-C基摩擦块,在不同的工艺条件下进行扩散焊,并对其焊接接头的微观组织和力学性能进行了研究。结果表明,在加热温度为800℃、压力为0.0234 MPa工艺条件下,焊接接头实现了良好的冶金结合,其扩散层厚度较厚,剪切强度最高。With pre-copper alloy 20 steel substrate and pre-prepraring good Cu-C-based friction block, diffusion bonding was carried out in different process conditions, then,the microstructure and mechanical properties of the welded joints were studied. The results show that under heating temperature of 800 ℃, pressure of 0.0234 MPa, the welded joints achieve a good metallurgical bonding, the diffusion layer is thicker, and the shear strength is maximum.

关 键 词：制动器衬片 扩散焊 接头组织 接头性能 

分 类 号：TG453.9[金属学及工艺—焊接]