Shear Strength and Performance of Glass-to-metal Brazed Joints
Vacuum brazing of glass to Kovar alloy was carried out at 670～700℃ using Cu-Ni-Sn-P brazing alloy. The holding time ranges from 5min to 30min. The shear stress was tested to evaluate the mechanical property of the vacuum brazed joints. The results showed the maximum shear stress was 11.6MPa when the brazing temperature was 680℃ and holding time was 10min. In accordance with the welded structures, the finite element (FE) model of glass-to-metal brazed joints was established. As result, the shear tests on the lap joints in conjunction with FM analysis were used to optimize the glass-to-metal brazing technology. The above results provide the basis of design against damage and reliable estimation of glass-to-metal seals.
Glass-to-metal joint Vacuum brazing Finite element analysis Shear strength Microstructure
Xihai Shen Chunxiang Sun Lichun Wang
CNPC Research Institute of Engineering Technology, 300451 Tianjin, China
国际会议
沈阳
英文
686-690
2010-07-28（万方平台首次上网日期，不代表论文的发表时间）