白铜封严篦齿环真空钎焊工艺  

Vacuum brazing process of copper-nickel alloy labyrinth seal rings

作　　者：林发仙 王建荣 翟辉 敖斌 

机构地区：[1]贵州黎阳航空动力有限公司,安顺市561116

出　　处：《焊接》2016年第3期65-68,76,共4页Welding & Joining

摘　　要：对某燃机白铜封严篦齿环焊接组件真空钎焊工艺进行了研究。根据要求选用铜基B-Cu35NiMnCoFeSi（B，P）-S钎料，进行了钎料工艺性能、零件装配与定位、钎焊工艺参数的研究，并通过工艺验证和生产应用，对焊缝进行金相和X射线检测。结果表明，所选用的钎料、零件装配方法、真空钎焊温度（1060±10）℃、时间10～30min、真空充氩1．0～20Pa下钎焊能满足白铜封严篦齿环设计图要求和工艺技术条件要求。Vacuum brazing welding assembly process of copper-nickel alloy for gas turbine labyrinth seal rings was investigated. According to the requirements,copper-based B-Cu35NiMnCoFeSi( B,P)-S as brazing filler metal was used,brazing process performance,parts assembly and positioning,brazing process parameters were studied. And the process validation and production applications shows that the selected brazing filler metal,parts assembly method,vacuum brazing temperature of( 1 060 ± 10) ℃ for( 10 ~ 30) min,in vacuum argon( 1. 0 to 20) Pa in brazing can meet the requirements on copper-nickel alloy labyrinth seal rings design and technology conditions.

关 键 词：白铜B19 封严篦齿环 真空钎焊 箔带状钎料 

分 类 号：TG454[金属学及工艺—焊接]