Transactions of Materials and Heat Treatment

Title：Balance regulation model and numerical simulation on lateral non-symmetrical phenomenon in hot rolled Al alloys

Authors： Ma Liyong Liu Yilun Fu Zhuo

Unit： Hebei University of Architecture Central South University

KeyWords： hot rolled aluminum strip lateral non-symmetry balance regulation numerical simulation

ClassificationCode：TG339

year,vol(issue):pagenumber：2014,39(11):130-134

Abstract：

For the lateral non-symmetrical characteristics caused by original thickness difference, initial eccentricity and initial set roll gap difference i.e. in hot rolled Al alloys process, balance regulation models were founded. The hot rolling process of JP1235 Al alloys was analyzed by MSC.Marc software. Deviation situation before and after balance straightening was simulated based on the regulation model that formed by both the constitutive relation of JP1235 Al alloy obtained experimentally and practical data coming from a five-stand Al rolling equipment. The results show that balance regulation models can effectively reduce the lateral deviation of parts caused by lateral non-symmetry. The deviation caused by initial eccentricity decreases to near 0 after the system response 1.2 s. The deviations caused by initial thickness wedge and initial roll gap are released by over 60%. Therefore, it is proved that the balance regulation model is highly effective, and the result is desirable.

Funds：

国家自然科学基金资助项目(51375500)；湖南省教育厅资助项目(2013SK2001)；湖南省科技计划资助项目(2012GK3171)；中南大学中央高校基本科研业务费专项资金资助项目(2013zzts037)

马立勇（1987-），男，硕士研究生

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