A method for the analysis of an, ag, Zn, Cu, Ni, Co and fe in ion-exchange resins at the different stages of technological processes of leaching Au using ion-exchange technology was developed.

本工作对离子交换法提取金的工艺生产过程不同阶段离子交换树脂中的金及其它元素银、锌、铜、镍、钻和铁的分析进行了研究。

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The hardness, tensile strength and elongation of Ag, cu and Ta, their relationship with the degree of cold work and soften annealing curves of cold-worked Ag, cu and Ta were investigated.

用显微硬度、电子拉伸等试验方法，测定了银、铜、钽的硬度、抗拉强度、延伸率与冷加工变形量的关系及冷加工态银、铜、钽退火软化曲线。

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Thereby, Cu-Ag alloy prpeared by Ohno continuous casting is a new material with better wear resistance.

因此，通过热型连续定向凝固技术生产的铜银合金是一种耐磨性较好的新材料。

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