硬线钢盘条表面结疤原因分析

Cause analysis of scabbing on hard wire steel wire rod surface

硬线钢盘条表面结疤在生产过程中产生的废品约占盘条废品总量的70%左右,降低和减少硬线钢盘条表面结疤将大幅度提高企业的经济效益。针对硬线钢盘条表面结疤的几种不同形貌特征进行金相分析,发现盘条结疤原因不但与铸坯质量有关,而且与轧制过程中坯料的折叠缺陷、坯料表面的划伤、异金属的压入均有关系。通过检验分析为炼钢及轧钢工艺改进提供理论依据。

The surface scabbing of hard wire rod accounts for about 70%of total scrap of wire rod in production process,reducing surface scabbing of hard wire steel wire rod will greatly improve the economic benefit of enterprises.The metallographic analysis of different morphological characteristics of surface scabbing of hard wire rod shows that the reason of scabbing is not only related to quality of billet,but also to folding defects of billet,scratches on surface of billet and indentation of different metals.The test analysis provides theoretical basis for improvement of steelmaking and rolling process.