摘要: |
通过对环路热管结构中的铝合金和不锈钢异种金属低温软钎焊试验研究,采用锡基钎料配合活性钎剂,将铝合金表面进行预镀镍处理,镀镍层厚度10μm左右,钎焊间隙为0.2~0.5mm,钎焊温度220℃,能够获得质量和传热性能满足要求的热管钎焊结构。 |
关键词: 铝合金;不锈钢;软钎焊 |
基金项目: |
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Experimental Research on the Low Temperature Soldering ofAluminum Alloys and Stainless Steels |
Wang Qijuan Lai Xiaoming
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Beijing Spacecrafts
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Abstract: |
The experimental study was operated on the low temperature soldering of aluminum alloys and stainless steels, which are used in the loop heat pipe structure. Using the optimized parameters (Tin-based alloy and active flux; surface nickel plating treatment on the substrate of aluminum alloy; plating thickness is about 10μm; the brazing clearance is?selected from 0.2mm to 0.5mm; soldering temperature is 220℃) in this?study, ?the heat pipe soldering structure with good quality and thermal conducting performance can be obtained. |
Key words: aluminum alloy;stainless steel;soldering |