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| ON THE STICKING OF THIN STEEL SHEETS DURING PACK ROLLING |
| CHANG TSO-MEI;LEE HUI-CHEN Institute of Metal Research; Academia Sinica |
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Cite this article:
CHANG TSO-MEI;LEE HUI-CHEN Institute of Metal Research; Academia Sinica. ON THE STICKING OF THIN STEEL SHEETS DURING PACK ROLLING. Acta Metall Sin, 1957, 2(4): 335-348.
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Abstract Results of a comprehensive investigation on the sticking of thin steel sheetsduring pack rolling reveal that it is a very complicated problem, so that it is neces-sary to have a good control of the conditions of the materials under working aswell as the heating, tool surface and rolling conditions before sticking can be effec-tively reduced. Experimental results also point out that rolling temperature is one of the mainfactors affecting sticking, since sticking increases with the rise in rolling temperature.Increase in reduction also increases sticking; while a rise in rolling speed reducesit. The way in which rolled sheets are cooled has also considerable influence onsticking, so that it is best to cool the sheets down rapidly and it is undesirable topile up too many sheets together during cooling. The oxide film on the surface of sheets is also an importan factor affectingsticking. When there is no oxide film on the surface, the sheets stick togetherfirmly as a solid whole during pack rolling. Both heating and rolling change thedistribution of phosphorus in the sheet with a tendency to increase the phosphoruscontent on the surface, thus reducing the degree of sticking. The microstructure of the stuck surface has been examined and has been foundto show five different forms revealing the complicated nature of sticking.
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Received: 18 April 1957
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[1] 张作梅、徐有容、高子明、郭胜泉,球墨播跌的可塑性的研究,金属学报,1956年,第1卷第2期.
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[8] Karl Hauffe, The Mechanism of Oxidation of Metals and Alloys at High Temperatues, Progress in Metal Physics 4, 1953, p. 71--102．
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[12] 某厂中央试验室,薄板粘结试验总结,1956年8月(内部资料).k |
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