不锈钢毛细管的真空钎焊研究
Research of vacuum brazing technology in Stainless Steel Tube-Plate Joint
贾志华
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作者单位：西北有色金属研究院
中文关键字：毛细管，不锈钢，真空钎焊，工艺参数
英文关键字：apillary tube，stainless steel，vacuum brazing，technology parameters
中文摘要：对不锈钢毛细管结构的真空钎焊工艺进行了试验研究，确定了毛细管与管板（材质均为1Cr18Ni9Ti）钎焊时的温度、保温时间等最佳钎焊工艺参数。观察分析了钎焊接头的微观组织，并对接头的致密性进行了检测。研究表明，通过应用本试验研究获得的最佳工艺参数能够得到内外部质量、密封性能和力学性能优良的接头。
英文摘要：he vacuum brazing of the combination of Stainless Steel Tube-Plate Joint was discussed in the paper. The suitable parameters of temperature and heat preservation for vacuum brazing have been obtained. And the microstructure and composition of welding joint were analyzed. The experiment result show that the inner and outer quality, the sealing performance and mechanical properties of the brazing joint were fine through using the obtained optimal parameters.