不同表面预处理方法对AlSi50合金真空钎焊接头性能的影响

IF 0.7 Q3 ENGINEERING, MULTIDISCIPLINARY
Z. Gao, Jianguang Feng, Tao Xingkong, F. Ma, J. Niu
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引用次数: 1

摘要

研究了不同表面预处理方法对AlSi50合金真空钎焊接头性能的影响。钎焊前试样的表面预处理方法包括砂光、NaOH腐蚀、HCl腐蚀、H2 SO4腐蚀和镀镍。实验结果表明,钎焊接头的宽度随表面预处理方法的不同而变化。经过砂光预处理的接头,最大钎焊焊缝宽度为20μm。同时,H2 SO4腐蚀接头的钎焊焊缝宽度最窄。钎焊填充金属能很好地润湿和铺展在不同预处理试样上。光谱分析表明,AlSi50表面的镍板可以与钎料相互作用,提高了钎焊接头的力学性能。对于AlSi50合金的钎焊,最佳的预处理方法是镀镍。采用钎焊填充金属Al52-Cu33-Mg12-Ni3,钎焊温度580℃,浸泡时间30min,压力3MPa,经镀镍预处理后,钎焊接头的最大剪切强度为82.05MPa。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of different surface pretreatment method on vacuum brazing joint properties of AlSi50 alloy
In this paper, the effect of different surface pretreatment method on properties of vacuum brazed joint of AlSi50 alloy was investigated. The surface pretreatment methods of specimen before brazing include sanding, NaOH corrosion, HCl corrosion, H 2 SO 4 corrosion and nickel plating. The experimental results indicate that the width of brazing joint varies with different surface pretreatment methods. The joint with sanding pretreatment, has the largest brazing seam width of 20 μm. Meanwhile, joint with H 2 SO 4 corrosion has the narrowest brazing seam width. The brazing filler metal can wet and spread on different pretreated specimen very well. Spectrum analysis indicates that nickel-plate on AlSi50 surface, can interact with brazing filler metal, which increases mechanical property of brazing joint. For brazing of AlSi50 alloy, the optimal pretreatment method is nickel plating. After nickel plating pretreatment, brazing joint has the maximum shear strength 82.05 MPa by using brazing filler metal Al52-Cu33-Mg12-Ni3 and following technological parameters: brazing temperature 580 ℃, soaking time 30 min and pressure 3 MPa.
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来源期刊
Engineering Review
Engineering Review ENGINEERING, MULTIDISCIPLINARY-
CiteScore
1.00
自引率
0.00%
发文量
8
期刊介绍: Engineering Review is an international journal designed to foster the exchange of ideas and transfer of knowledge between scientists and engineers involved in various engineering sciences that deal with investigations related to design, materials, technology, maintenance and manufacturing processes. It is not limited to the specific details of science and engineering but is instead devoted to a very wide range of subfields in the engineering sciences. It provides an appropriate resort for publishing the papers covering prior applications – based on the research topics comprising the entire engineering spectrum. Topics of particular interest thus include: mechanical engineering, naval architecture and marine engineering, fundamental engineering sciences, electrical engineering, computer sciences and civil engineering. Manuscripts addressing other issues may also be considered if they relate to engineering oriented subjects. The contributions, which may be analytical, numerical or experimental, should be of significance to the progress of mentioned topics. Papers that are merely illustrations of established principles or procedures generally will not be accepted. Occasionally, the magazine is ready to publish high-quality-selected papers from the conference after being renovated, expanded and written in accordance with the rules of the magazine. The high standard of excellence for any of published papers will be ensured by peer-review procedure. The journal takes into consideration only original scientific papers.
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