A slab grinding method for improving the quality of hot-rolled surface of austenitic stainless steels

摘要

The present invention controls the grinding condition of the STS304 steel continuous casting slab to suppress the formation of internal oxide nodules during reheating before grinding and to improve the hot workability through grain size refinement of the surface layer, It is an object of the present invention to provide a slab grinding method in which stainless steel improves hot-rolled surface quality.;The present invention relates to a method for producing a hot-rolled austenitic stainless steel sheet by continuously casting osteonitic stainless steels, grinding and reheating the slabs, and then hot-rolling, Wherein the surface of the abrasive grains is ground so that the value of the grinding pressure (kg / cm 3) x the feed rate (m / min) is 1100 or less. The present invention provides a slab grinding method for improving the hot-It is essential.