Cold rolling unit system and implementation method thereof

Abstract

The invention relates to the field of strip steel processing, and discloses a cold rolling unit system and an implementation method thereof. According to the cold rolling unit system and the implementation method thereof provided by the invention, when a first working roll of a first roll system is used to phi370 millimeters and cannot be reused, the first working roll can be subjected to secondary quenching, and a reformed second roll system is used as a second working roll for continuous operation. When a second middle roll of the reformed second roll system is used to phi450 millimeters and cannot be reused, the second middle roll can be subjected to secondary quenching, and the first roll system is used as a first middle roll for continuous operation. When the diameter usage range of the working roll is enlarged to be between 400 and 340 millimeters and the usage range of the middle roll is enlarged to be between 485 and 415 millimeters, the service lives of the working roll and the middle roll are prolonged, the old is changed into the new, and the production cost is reduced.

Description

technical field [0001] The invention relates to the field of steel strip processing, in particular to a cold rolling mill system and a realization method thereof. Background technique [0002] With the rapid development of modern industry, the vigorous development of industry, construction and civil household appliances, the demand for cold-rolled strip products is increasing. The use of cold rolling mills for processing is increasing. The processing of the strip steel in the cold rolling mill mainly passes through the work rolls, so the wear on the work rolls is the greatest. [0003] However, the utilization rate of the work rolls in the cold rolling mill of the prior art is not high, and the diameter of the existing work rolls is worn to 370mm (millimeters) and cannot be used anymore, that is, when the use range of the work rolls of the prior art is φ400 / φ370mm It can no longer be used and can only be scrapped. In this way, as the production time goes on, more and more...

AI Technical Summary

Problems solved by technology

[0003] However, the utilization rate of the work rolls in the cold rolling mill of the prior art is not high, and the diameter of the existing work rolls is worn to 370mm (millimeters) and cannot be used anymore, that is, when the use range of the work rolls of the prior art is φ400 / φ370mm It can no longer be used and can only be scrapped

In this way, as the production time goes by, more and more work rolls need to be scrapped, and the processing cost cannot be reduced

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