Nourani, A., Salimi, M. (2008). A Roll Wear Prediction Model in Hot Plate Rolling. Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 1(4), 41-54.
A. Nourani; M. Salimi. "A Roll Wear Prediction Model in Hot Plate Rolling". Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 1, 4, 2008, 41-54.
Nourani, A., Salimi, M. (2008). 'A Roll Wear Prediction Model in Hot Plate Rolling', Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 1(4), pp. 41-54.
Nourani, A., Salimi, M. A Roll Wear Prediction Model in Hot Plate Rolling. Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering, 2008; 1(4): 41-54.
1M.Sc., Mechanical Engineering Faculty, Isfahan University of Technology.
2Professor, Mechanical Engineering Faculty, Isfahan University of Technology
Abstract
In this paper, the wear of work roll in hot plate rolling is introduced and the parameters affecting wear mechanisms in hot strip mill are investigated. In addition, different wear mechanisms in hot rolling and the differences between these mechanisms in different stands are explained. Using the finite element method and the rolling equations, a work roll wear model is proposed. Wear is modeled using the resultant pressure distribution along the roll barrel. To obtain the tentative coefficient, summation of wear in each pass schedule is obtained and calibrated via actual wear of samples tested in the Mobarakeh Steel Company. Finally, the theoretical wear values are compared with those of the experiment. The predicted wear profiles are found to be in good agreement with those of the experimental measured values.
در این مقاله سعی شده است پدیده سایش به طور کامل معرفی گردد و پارامترهای مؤثر بر سایش غلتک‌های کاری نورد گرم مورد بررسی قرار گیرد. همچنین، انواع مکانیزم‌های سایش غلتک‌های کاری و تفاوت آنها در قفسه‌های مختلف بیان شده‌اند. با استفاده از روش المان محدود، و نوشتن برنامه‌ی مربوطه، نورد گرم، مدل‌سازی شده و با استفاده از توزیع فشار در طول غلتک، سایش اندازه‌گیری می‌شود. برای به دست آمدن ضریب تجربی موجود در معادله، سایش ناشی از عبورهای مختلف، جمع و با سایش واقعی حاصل از نمونه تست انجام شده در خط نورد گرم شرکت فولاد مبارکه، کالیبره می‌شود. نتایج به وسیله مقایسه نیروی به‌دست آمده با نیروی نورد واقعی تأیید می‌شود. در نهایت سایش تئوری و تجربی برای یک قفسه با یکدیگر مقایسه می‌شود.
Keywords [Persian]
پروفیل سایش، نورد گرم، غلتک کاری، المان محدود
References
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