Method for producing medium-thickness steel for engineering machinery by single-stand steckel mill

Abstract

The invention discloses a method for producing medium-thickness steel for engineering machinery by a single-stand steckel mill. The surface quality of a steel plate is improved by improving heating, rolling and descaling processes, and a low-temperature heating mode is adopted to heat a steel billet, reduces the occurrence rate of pitted surface defects of the steel plate in a heating link, reduces defects caused by the fact that oxide scales are pressed into the surface of the steel plate in the rolling process, reduces the heating furnace energy consumption and the production cost, and improves the production efficiency.

Description

technical field

[0001] The invention relates to a method for controlling the surface quality of a hot-rolled steel plate, in particular to a method for producing a medium-thick steel plate with a high surface quality requirement by using a single-stand furnace coil mill, and belongs to the technical field of steel rolling technology.

[0002] A method for producing medium-thickness steel for engineering machinery with a single-stand steckel rolling mill of the present invention is mainly through improving the heating, rolling and descaling processes when rolling medium-thickness engineering machinery steel with a single-stand steckel rolling mill Optimization, using the production method of lowering the steel burning temperature and normalizing rolling to improve the surface quality of the steel plate. The surface color of the steel plate produced after the process improvement is uniform, the water marks caused by laminar flow cooling are significantly reduced, the thickness o...