通过分析研究东北特钢集团抚顺特殊钢股份有限公司连轧厂热轧棒材表面缺陷的形貌特征,结合金相分析和生产实践,对这类表面缺陷进行了归类;并根据其特点、产生原因分别提出可行的控制措施,由此提升了棒材表面质量,其涡流探伤通过率提升近10%。 Through the analysis of the surface features of the hot rolled bar surface of the Northeast Special Steel Group Fushun Special Steel Co., Ltd., the surface defects were classified according to the metallographic analysis and production practice. According to its characteristics, Causes of the proposed feasible control measures, thereby enhancing the bar surface quality, eddy current testing through rate increased by nearly 10%.