论中国电缆工业的废杂铜直接再生制杆和以铝节铜

当前我国电缆工业“废杂铜的直接再生制杆”和“以铝节铜”已成为关注的“热点”。整个行业铜线的质量在下降,致使线缆产品的合格率大幅下降。铜包铝线和铜包钢线的用量正在逐步攀升,但“以铝节铜”的产品方向和在技术经济上的可行性在某些领域供、需双方还未取得共识和可行的结论。文章就废杂铜直接再生制杆、以铝节铜的现状、问题和建议进行论述,以期这两大热点向良性循环的方向发展。

On the direct use of recovered scrap Cu and saving Cu with Al in the Chinese cable industry

The Cu consumption by the chinese cable industry amounted to 3.54 million tons in 2006, taking over 70 % of the total Cu consumption in China in that year. At present, making Cu rod directly from recovered scrap Cu and saving Cu with Al have become topics of general interests in the chinese cable industry. The quality of the Cu conductors in the industry is declining, resulting in sharp decrease in the rate of qualified wire and cable products. More and more Cu wires are drawn from the rods made directly from scrap Cu. The manufacturers know well some of the wires or rods are unqualified products though, they continue to use or produce products ,not complying with standards in order to make profits. Now the consumption of Cu-clad-aluminum and Cu-clad-steel is growing gradually. In 2006, the consumption of Cu-clad-aluminum in China amounted to ca. 50 000 tons. But in some applications, neither the common understanding between buyer and supplier nor the results of feasibility study are achieved in the product orientation and technical/economic feasibility in terms of saving Cu with Al. This paper presents the status-quo, problems arisen and suggestions in terms of making Cu rod directly from recovered scrap Cu and saving Cu with Al, in a view to promote these two topics of general interests to go toward a virtuous circle.