This paper has presented a computer control system for aluminium singlestand 4high cold rolling mill. The 3level automation system can significantly improve the dimensional accuracy of the aluminium strip, quickly adapt to the changes in rolling specification, and significantly improve the mechanical properties of the steel plate. ...
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WhatsApp: +86 18838072829The diameter of the 4high work rolls amounts to approximately 1:4 in relation to the barrel length. This type of rolling mill is mainly used in offline applications for cold rolling of soft and medium strip and for a wide range of strip widths, as well as for breakdown rolling in offline applications.
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WhatsApp: +86 18838072829The input stock from the casting plant or hot rolling mill is up to mm thick and wound into loose coils with variable inner diameters. To handle the large strip gauge variations, the entry and exit stations consist of a combined payoff gear and payoff drum with various reel diameters. The reversing cold mill is a 4high type.
WhatsApp: +86 18838072829The cold rolling mill responsible for the stainless steel differs from the carbon steels being called cluster mill (20 high) or sendzimir (12 high), in single stand configuration, being constituted by monolithic stands, compact, multirolls, for material with a hardening level bigger than carbon steels.
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WhatsApp: +86 18838072829Modern, efficient cold rolling mills can roll pickled sheets or strips at speeds of up to 4 m/s and tandem mills that are continuously working can produce up to million tons of cold rolled steel annually. The advantages of cold rolling. Cold rolled products have the following advantages over hot rolled: greater dimensional accuracy
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WhatsApp: +86 18838072829A tandem rolling mill is a rolling mill with two or more closecoupled stands, where the reduction is achieved by the interstand tension (s) and the compressive force between the work rolls. For mills rolling thinner strip, bridles may be added either at the entry and/or the exit to increase the strip tension near the adjacent stands further ...
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