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2024-07

铜的品质和分类有什么讲究吗?

电子产品中的导体连接部位的金属弹片95%是使用铜材质（黄铜、磷铜、红铜，洋白铜、铍铜）今天仅讲三种常用于弹片的铜，并且有些电子产品在安规方面就有指定必须采用铜材质,及材质中的含铜量.在面临实践设计选材之时，有...

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2024-07

为何铜材需要钝化处理？

由于铜本身的化学性质非常活跃，如果裸露于空气中，非常容易受到潮湿空气、水分的影响，进而发生反应，铜件表面就会变黑，更有甚者变绿，生锈。即使是抛光后的铜件，如果不马上进行保护处理，其表面也会逐渐被腐蚀。...

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2024-07

铜的密度

铜及铜合金材料是促进国民经济和社会发展最重要的基础材料之一，铜材料具备良好的力学性能和高温稳定性，且具有良好的耐电弧侵蚀性和耐磨性，广泛地应用于集成电路引线框架、精密仪表弹性元件、交通冶金、电子信息及精...

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2024-07

中国铜加工产业发展现状与趋势

一、铜产品及其产业链简介铜是最主要的有色金属之一。铜矿通过选矿、冶炼以及挤压、轧制、拉伸、冲压、锻造等加工程序，可加工成板材、箔材、管材、棒材、线材及各种形状的铜材，广泛用于电力、电子、家电、交通、建筑...

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2024-07

铜产品分类

①按自然界中存在形态分类自然铜--铜含量在99%以上，但储量极少；氧化铜矿-为数也不多硫化铜矿-含铜量极低，一般在2-3%左右，世界上80%以上的铜是从硫化铜和矿精炼出来的。②按生产过程分类铜精矿-治炼之前选出的含铜量...

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2024-07

铜的用途

铜的用途有哪些？当前，铜的全球年使用量近2800万吨。其中近 70% 的铜产品用于电气、导体和通信领域，如图1所示铜是除银之外导电率最高的金属。这一特性使铜成为电网材料的选择（占44%）——安全高效地向家庭和企业提供...

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