铜合金是以纯铜为基体加入一种或几种其他元素所构成的合金。按材料形成方法划分,可分为铸造铜合金和变形铜合金。铸造铜合金不能进行锻造、挤压、深冲和拉拔等变形加工。铸造铜合金和变形铜合金又可以细分为铸造用纯铜、黄铜、青铜和白铜。多数铸造铜合金不能进行压力加工,例如铸造铍青铜和铸造锡青铜(Cu5Sn5Zn5Pb),这类合金塑性极差,不能进行压力加工。
铸造技术不完善、铜合金原料中的杂质致使水龙头零件表面疏松,并有大量砂眼。
The defects of casting technology and the impurities in copper alloy material cause roughness of faucet surface with large amounts of sand holes.
结果表明:经金属型铸造的铜合金密度达到理论密度的99 91%。
The results show that the copper alloy density by permanent-mold casting attains 99.91% of theory density.
本发明涉及一种离心铸造生产实体铜合金轴承保持架成型铸件,属于机械加工领域。
The invention relates to a solid copper alloy bearing cage mold casting produced by centrifugal casting, and belongs to the machining field.
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