Cooling method of accelerated cooling steel sheet with small warp deformation during longitudinal cutting

摘要

In order to prevent occurrence of residual stress during acceleration cooling of a steel plate in a conventional accelerating cooling facility, the present invention changes the cooling rate in the cooling zone where the edge masking is installed and the cooling zone in the uninstalled cooling zone, It is an object of the present invention to provide a method of cooling an accelerated cooling steel sheet having a small deformation.;The present invention relates to a method of accelerating and cooling a hot-rolled steel sheet in an accelerating cooling system including edge masking, wherein the hot-rolled steel sheet is strengthened in a zone where the edge masking is provided; The present invention relates to a method of cooling an accelerated cooling steel sheet in which a warp deformation during longitudinal cutting is characterized by a weak lid in a cooling section where the edge masking is not installed.