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POWDER METALLURGY PROCESS FOR MAKING LEAD FREE BRASS ALLOYS

机译:粉末冶金工艺制造无铅黄铜合金

摘要

Graphite-containing brass alloy billets having less than 0.25 wt. % lead and a method of manufacturing relating thereto are provided. The method includes forming a brass powder and mixing the brass powder with graphite and one or more binders. The brass powder contains copper and zinc and may be formed using water atomization. The brass-powder mixture is compacted to form an initial billet. The initial billet may be subjected to one or more heating treatments. A first heating treatment may be used to remove the one or more binders. An optional second heating treatment may be used to deoxidize the binder-free billet. A third heating treatment may sinter the compact to form the workable graphite-containing brass alloy billet.
机译:含石墨的黄铜合金坯料小于0.25重量%。 提供%铅和与其相关的制造方法。 该方法包括形成黄铜粉末并将黄铜粉末与石墨和一个或多个粘合剂混合。 黄铜粉含有铜和锌,可以使用水雾化形成。 将黄铜粉末混合物压实以形成初始坯料。 初始坯料可以受到一种或多种加热处理。 第一加热处理可用于去除一个或多个粘合剂。 可选的第二加热处理可用于脱氧无粘合剂坯料。 第三加热处理可以烧结紧凑,以形成含可行的石墨黄铜合金坯料。

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