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发明公开
CN101628363A 锌镁基钎料合金及其制备方法 失效 - 权利终止 转让

锌镁基钎料合金及其制备方法
摘要：
本发明提供一种工作温度不高而焊接性能良好的锌镁基钎料合金及其制备方法。其合金成分的质量百分含量为：1.2～1.9％Al，33～37％Mg，3.1～6％Sn，0.0031～0.006％Be，0.025～0.095％Pr，0.5～2.5％Bi，其余为Zn。将配好的料在N 2 混合保护气氛中一起加热熔化，Mg-Pr中间合金中Pr质量百分含量为8％，先将Al锭和Sn条放于坩埚低部，然后放入纯Be块、Mg-Pr中间合金和纯Bi粉，接着将Mg锭放入，最后放置纯Zn锭。当温度升至700～725℃时，保温4～8分钟后浇注到预热到200℃的钢锭模中冷却得到锌镁基钎料合金。
摘要（英）：

The invention provides a zinc-magnesium based brazing alloy with low working temperature and good welding performance and a preparation method thereof. The alloy comprises the following components in percentage by weight: 1.2-1.9 Al, 33-37 Mg, 3.1-6 Sn, 0.0031-0.006 Be, 0.025-0.095 Pr, 0.5-2.5 Bi and the balance of Zn. The preparation method comprises the following steps: heating and melting matched material in a N2 mixing protective atmosphere; firstly, putting Al ingots and Sn strips at the bottom of a crucible; then adding pure Be blocks, Mg-Pr intermediate alloy and pure Bi powder; subsequently adding Mg ingots; and finally adding Zn ingots; keeping the temperature for 4-8 minutes when reaching to 700-725 DEG C, and then casting into a steel ingot mold preheated to 200 DEG C, thereby obtaining the zinc-magnesium based brazing alloy, wherein the weight percent of Pr in the Mg-Pr intermediate alloy is 8 percent.

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