STRIP PROFILE CONTROL METHOD OF HOT FINISHING TANDEM ROLLING MILL AND HOT FINISHING TANDEM ROLLING MILL

摘要

In a decision control device (60) of a control system (50), a predetermined pass schedule is decided by adjusting the rolling force per unit width at a last stand (100) of a hot finishing tandem rolling mill (1) to cause the edge profile on the outlet side of the last stand (100) to fall within an allowable range based on the relationship between a strip crown and the edge profile on the outlet side of the last stand (100) with respect to the rolling force per unit width and a strip shape control parameter, obtained regarding the last stand (100), and adjusting the strip shape control parameter of the last stand (100) to cause the strip shape on the outlet side of the last stand (100) to fall within an allowable range and cause the strip crown to become a predetermined value or smaller.