摘要
针对不同部位多条钎焊缝一次钎焊成型,开展采用BNi-2钎料进行喷注器真空钎焊工艺方法的实验研究。分析了表面洁净度、钎焊温度及钎缝间隙对喷注器密封性的影响。结果表明:钎缝间隙对由高温合金与不锈钢两种材料组成喷注体钎焊接头的密封性有显著影响。合理的钎缝装配间隙为10~15μm,此间隙使钎缝中的钎着率>90%,并得到了内外部质量、密封性优良的接头。
In order to study the one-shot welding of multiple brazing seams in different parts of the injector,an experimental study on the vacuum brazing process of the injector by using BNi-2 solder was carried out.The effects of surface cleaness,brazing temperature and brazing gap on the sealing performance of the injector were analyzed.The results show that the gaps between brazing seams have an important influence on the sealing performance of the brazed joints of the injection body composed of high temperature alloy and stainless steel.A reasonable brazing seam assembly gap is 10 to 15μm,and this gap makes the filling rate of the brazing seam more than 90%,and obtains a joint with excellent internal and external quality and sealing property is obtained.
作者
王文平
张志伟
武胜勇
贾春林
张汝俊
WANG Wenping;ZHANG Zhiwei;WU Shengyong;JIA Chunlin;ZHANG Rujun(Beijing Institute of Control Engineering,Beijing 100190)
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2019年第5期92-94,共3页
Aerospace Materials & Technology
关键词
喷注器
多钎缝
真空钎焊
钎缝间隙
Injection
Multi-brazing seam
Vacuum brazing
Brazing gap
作者简介
第一作者:王文平,1985年出生,硕士,主要从事真空电子束焊、钨极氩弧焊、真空钎焊以及热处理等工作。E-mail:306637469@qq.com.
