Si_3N_4／钢钎接时热应力缓和问题研究  

Study on Relaxation of Thermal Stresses in Brazing of Ceramics Si_3N_4 to Steel

作　　者：傅希圣[1] 王夏冰[1] 杨玉贵[1] 

机构地区：[1]甘肃工业大学机械一系

出　　处：《甘肃工业大学学报》1995年第4期17-21,共5页Journal of Gansu University of Technology

摘　　要：通过碳钢与Ｓｉ＿３Ｎ＿４陶瓷钎接后残余应力的分析，论述了应力缓和材料的选择原则。对各类材料热物理性能进行了分析比较，选出一些能实际应用的应力缓和材料，通过钎焊实验，证实采用适当的接头形式能有效地防止钎焊裂纹的出现，提高了钎接接头的强度。Through analysing residual stress after brazing carbon steel and Si_3N_4, the prin-ciple of selecting interlayer material for relaxing stress is discussed.Several kinds of practi-cable interlayer material are proposed from comparison of their thermal physical propertywith others. Also, by the brazing experiments , it is a good solution to the brazing flaw problem to use right joining type, with the increase fo the joint strength.

关 键 词：钎接 热应力 氮化硅陶瓷 钎焊 钢 残余应力 

分 类 号：TG454[金属学及工艺—焊接]