Assimilation of a new progressive method of producing copper rolled products in continuous casting and rolling units (NLP), the use of high-producing equipment in the production of various types of copper wire, as well as the tightening of requirements by foreign customers with respect to the quality of refined copper and copper semimanufactures (cathodes, ingots, copper rolled products) for electrochemical articles have recently created difficulties in the sale of cathodic copper on domestic and foreign markets. The purity of cathodic copper, particularly when copper wire is produced by the NLP method - excluding the copper refining operation during metal preparation for casting - is a decisive criterion of its quality. The quality of cathodic copper - aside from a minimal impurities content (60 g/t) - is also determined by its density, its spiral elongation, electroconductivity and gas-saturation capacity.
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机译：吸收了在连铸和轧制机组（NLP）中生产铜轧制品的新的渐进方法，在生产各种类型的铜线中使用了高产设备以及外国客户对要求的严格要求由于用于电化学制品的精制铜和铜半成品（阴极，铸锭，轧铜产品）的质量问题，最近在国内和国外市场上销售阴极铜造成了困难。阴极铜的纯度，特别是通过NLP方法生产的铜线时（不包括铸造金属准备过程中的铜精炼操作），是其质量的决定性标准。除了最小的杂质含量（60 g / t）外，阴极铜的质量还取决于其密度，螺旋伸长率，电导率和气体饱和能力。
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