Efficient rolling method for steel plate

Abstract

The invention discloses an efficient rolling method for a steel plate. According to the method, intermediate blanks rolled for a plurality of passes are rapidly cut and segmented on line, then a plurality of small intermediate blanks obtained after cutting are rolled into finished products, different rolling technologies can be adopted for rolling the finished products of different sizes and specifications, and therefore the purposes of one-plate multi-rolling and efficient rolling are achieved. The method specifically comprises the steps that after plate blanks are rolled for the plurality ofpasses into the intermediate blanks, the plate blanks are rapidly cut into N small intermediate blanks (N is larger than or equal to 2) on line; and the finished products are rolled according to theneeded rolling technology, the rolled finished products can be subjected to water cooling or air cooling on a cooling bed, and then heat treatment is carried out according to the performance requirement. By means of the method, the cogging material rolling time is saved to a great extent, the rolling cost is reduced, and the method can be used for laboratory rolling experiments or medium and thickplate workshop site steel rolling production.

Description

technical field [0001] The invention relates to the field of rolling processing of metal materials, in particular to a high-efficiency rolling method of steel plates. Background technique [0002] In the on-site rolling production of iron and steel enterprises, all steel mills cut the billets such as continuous casting billets into fixed-size billets or double-size billets, and then use heating furnaces to heat and roll them into finished plates. For hot rolling, one billet can only be rolled into one size specification by one rolling process. Existing customers have diversified demands for steel plates, with many thickness specifications and small length and width specifications. In production, two methods are generally used for production. The first one is to use the billet of the smallest size to roll into a large plate, and then cut out the steel plate of a small size, and the yield is low; the second is to open the billet and roll the thick billet into a thin billet ...

AI Technical Summary

Problems solved by technology

The first one is to use the billet of the smallest size to roll into a large plate, and then cut out the steel plate of a small size, and the yield is low; the second is to open the billet and roll the thick billet into a thin billet , generally 80-150mm, and then cut the thin billet into small billets, and then heat and roll them into large plates. system, long process flow and high energy consumption

Therefore, the existing rolling process has the problems of high cost, low yield and high energy consumption.