Influence of Pressing Time on Steel-copper-graphite Bonding  

作　　者：Peng ZHANG Yunhui DU Hanwu LIU Jun ZHANG Daben ZENG Jianzhong CUI Limin BA 

机构地区：[1]Department of Mechanical Engineering, Beijing Jiaotong University, Beijing 100044, China [2]Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China [3]Metal Forming Department, Northeastern University, Shenyang 110506, China [4]Anshan Automobile Fittings Factory, Anshan 114014, China

出　　处：《Journal of Materials Science & Technology》2006年第2期235-238,共4页材料科学技术（英文版）

基　　金：This project is supported by the National Natural Science Foundation of China(Nos.50274047 and 50304001);the Natural Science Foundation of Beijing;the Ministry of Education of PRC Foundation;the Beijing Jiaotong University Foundation.

摘　　要：The bonding of steel plate with QTi3.5-3.5 graphite slurry was studied by using pressing bonding technique. The influence of pressing time on the interracial mechanical property of bonding plate was researched. The results show that： under the conditions of 620℃ preheating temperature of steel plate, 530℃ preheating temperature of dies, 46% solid fraction of QTi3.5-3.5 graphite slurry and 50 MPa pressure, there exists a nonlinear relationship between pressing time and interracial shear strength. The interracial shear strength of bonding plate increases with increasing pressing time and reaches a largest value about 127 MPa when pressing time is longer than 120 s. At the interface with the best mechanical property, there exists a continuous Fe-Cu inter-diffusion zone and a metallurgical bonding.The bonding of steel plate with QTi3.5-3.5 graphite slurry was studied by using pressing bonding technique. The influence of pressing time on the interracial mechanical property of bonding plate was researched. The results show that： under the conditions of 620℃ preheating temperature of steel plate, 530℃ preheating temperature of dies, 46% solid fraction of QTi3.5-3.5 graphite slurry and 50 MPa pressure, there exists a nonlinear relationship between pressing time and interracial shear strength. The interracial shear strength of bonding plate increases with increasing pressing time and reaches a largest value about 127 MPa when pressing time is longer than 120 s. At the interface with the best mechanical property, there exists a continuous Fe-Cu inter-diffusion zone and a metallurgical bonding.

关 键 词：Steel-copper-graphite bonding Pressing time Interracial shear strength 

分 类 号：TG453[金属学及工艺—焊接]