Abstract

The roll wear in a hot section mill for copper is measured under industrial conditions. Fatigue and oxidative wear are found to be the main types of wear, which consist the appearance and development of a network of erosion cracks. The technique of quantitative wear measurement consists in roll remachining at a given step across the worn layer depth and fixation of the presence or absence of a network of erosion cracks on them. The finite element method is used to perform a mathematical simulation of the rolling process and to determine the main parameters, namely, the velocity, the pressure, the slip, and the full slip path on the contact surface. The obtained distributions of the parameters are compared with the results of industrial measurements. Wear localization zones are shown to correspond to the areas of intense slip and high normal pressure in roll passes. The developed recommendations point to practical importance of this work.

中文翻译：

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电气铜轧制参数对轧制道次磨损的影响

摘要

铜热截面轧机中的辊磨损是在工业条件下测量的。发现疲劳和氧化磨损是主要的磨损类型，包括腐蚀裂纹网络的出现和发展。定量磨损测量技术包括在磨损层深度上的给定步骤中对辊进行再加工，并在其上固定是否存在腐蚀裂纹网络。有限元方法用于对轧制过程进行数学模拟，并确定主要参数，即接触面上的速度，压力，滑移和全滑移路径。将获得的参数分布与工业测量结果进行比较。磨损局部区域显示为对应于辊道中的剧烈滑动和高法向压力的区域。提出的建议指出了这项工作的实际重要性。