A simplified mathematical model for total temperature rise calculation in non-oriented silicon steel cold rolling deformation zone

IF 0.9 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING Metallurgical Research & Technology Pub Date : 2021-12-20 DOI:10.1051/metal/2021095

Guomin Han, Hongbo Li, Yujin Liu, J. Zhang, N. Kong, Zhiyuan Hu, Lei Liu

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引用次数: 2

Abstract

In tandem cold rolling, the control of the temperature of high-grade non-oriented silicon steel is a difficult problem for its large deformation resistance and the preheating procedure before rolling. And it is complicated to calculate the total temperature rise of rolling deformation zone due to the comprehensive influence of the plastic deformation heat, the friction heat and the contact heat loss. So, to precisely calculate the total temperature rise, firstly, based on the four classical cold rolling force formulas, the initial total temperature rise calculation models are established correspondingly by theoretically analyzing the temperature rise of deformation heat, the temperature rise of friction heat and the temperature drop of contact heat loss; then, the model based on the improved Lian rolling force formula is adopted, which leads to calculated best matching the measured temperature; finally, considering the complex formula calculation of the initial model, based on the influences of different rolling parameters on the total temperature rise, a simplified model for convenient calculation is proposed by the nonlinear regression analysis of the initial model calculation results and main rolling parameters, which is convenient for the actual application by the field technicians.

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无取向硅钢冷轧变形区总温升计算的简化数学模型

高档无取向硅钢因其抗变形能力大，且轧制前需预热，因此在冷轧连轧过程中，温度的控制是一个难题。由于塑性变形热、摩擦热和接触热损失的综合影响，轧制变形区总温升的计算比较复杂。因此，为了精确计算总温升，首先，在四种经典冷轧力公式的基础上，通过理论分析变形热温升、摩擦热温升和接触热损失温降，建立了相应的初始总温升计算模型;然后，采用基于改进的连轧力公式的模型，使计算结果与实测温度最匹配;最后，考虑到初始模型公式计算复杂，基于不同轧制参数对总温升的影响，通过对初始模型计算结果与主要轧制参数的非线性回归分析，提出了简化模型，便于计算，便于现场技术人员的实际应用。

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来源期刊

Metallurgical Research & Technology METALLURGY & METALLURGICAL ENGINEERING-

CiteScore

1.70

自引率

9.10%

发文量

审稿时长

4.4 months

期刊介绍： Metallurgical Research and Technology (MRT) is a peer-reviewed bi-monthly journal publishing original high-quality research papers in areas ranging from process metallurgy to metal product properties and applications of ferrous and non-ferrous metals and alloys, including light-metals. It covers also the materials involved in the metal processing as ores, refractories and slags. The journal is listed in the citation index Web of Science and has an Impact Factor. It is highly concerned by the technological innovation as a support of the metallurgical industry at a time when it has to tackle severe challenges like energy, raw materials, sustainability, environment... Strengthening and enhancing the dialogue between science and industry is at the heart of the scope of MRT. This is why it welcomes manuscripts focusing on industrial practice, as well as basic metallurgical knowledge or review articles.