FIELD: technological processes.
SUBSTANCE: method includes heating of screens in at least two stages (preliminary and final), which proceed from one to the other, at that at preliminary stage heating is carried out up to intermediate temperature, and at the final stage - up to required temperature. Reduction of electric energy consumption with preservation of efficiency and provision of preset temperature of strip winding in roll is provided at the account of the fact that preliminary stage of heating is carried out by means of rolling in mill roughing group, at least, one batch of strips, and final one - by means of passing electric current through screens, at that in the process of realisation of final heating stage, rolling in finishing group of mills is carried out with the permanent speed that is not less than average speed of similar strip rolling at the same mill during rolling with acceleration and not higher than maximum speed of similar strip rolling during its rolling with acceleration.
EFFECT: reduction of electric energy consumption in production of hot rolled strips.
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Authors
Dates
2008-07-20—Published
2006-12-13—Filed