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黑丝是电解铝液直接铸轧板时常出现的一种缺陷,该缺陷的存在严重影响了产品的质量和外观。为了解决这一问题,结合具体的生产实践,首先对生产过程中可能导致该缺陷产生的十种原因(包括熔体洁净度及成分氮气洁净度等因素)进行了分析;而后对分析的原因提出了针对性的改进工艺;最后采用改进工艺进行生产试验。结果表明:经改进工艺生产出来的产品,其质量和外观均得到了显著改善,且黑丝缺陷很少出现了。
Black silk is a kind of defect often appeared in the direct casting of aluminum plate. The existence of the flaw seriously affects the quality and appearance of the product. In order to solve this problem, combined with the specific production practice, first of all, the production process may lead to the defects of the 10 reasons (including melt cleanliness and composition of nitrogen cleanliness and other factors) were analyzed; and then analyzed the reasons Targeted improvement process; Finally, the use of improved technology for production testing. The results show that the quality and appearance of the products produced by the improved technology have been significantly improved, and the defects of black silk rarely appear.