氟铝酸铯中温钎剂钎焊铝合金的润湿性研究

发布时间：2019-06-09 18:56

【摘要】：与传统Nocolok钎剂相比,氟铝酸铯钎剂具有更低的熔点,对铝镁合金活性更强。为了研究由Honeywell公司提供的氟铝酸铯钎剂的使用条件,通过流布试验和钎料润湿试验,采用宏观和金相组织观测的方法分析了在不同条件钎剂的流布状态以及钎剂辅助作用下,Zn-20%A1钎料对铝合金的润湿性。结果表明,钎剂的挥发性较强,其流布面积对铝合金的活性均受到钎剂加热速度的影响。加热速度慢时,钎剂在1060纯铝表面的流布面积较小,凝固后表面可以看到深浅不一的两层;提高加热速度可以显著提高钎剂的流布面积。在氟铝酸铯钎剂辅助作用下,Zn-20%A1钎料可以润湿铝合金,润湿性随铝合金镁含量升高而下降;提高加热速度,钎料对铝合金的润湿性显著提高。
[Abstract]:The caesium fluoride-containing agent has lower melting point compared with the traditional Nocrook effervescent agent, and has stronger activity on the aluminum-magnesium alloy. In order to study the conditions of the use of the cesium fluoroaluminate cement provided by honeywell, the wettability of Zn-20% Al alloy on the aluminum alloy was analyzed by means of the flow-cloth test and the wet-wet test. The results show that the volatility of the aluminum alloy is strong, and the area of the flow cloth is affected by the heating speed of the quenching agent. When the heating speed is slow, the flow cloth area of the condensing agent on the surface of the 1060 pure aluminum is small, the surface can see two layers of different depth after the solidification, and the heating speed can obviously improve the flow cloth area of the condensing agent. Under the auxiliary action of the cesium fluoride, the Zn-20% Al material can wet the aluminum alloy, and the wettability decreases with the increase of the magnesium content of the aluminum alloy; and the heating speed is improved, and the wettability of the aluminum alloy to the aluminum alloy is remarkably improved.
【作者单位】：哈尔滨工业大学先进焊接与连接国家重点实验室;霍尼韦尔特性材料和技术集团;
【分类号】：TG425

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