A method of rolling steel

Abstract

The invention relates to a steel rolling method. After rolled pieces enter a manipulator, an I hole is aligned, a group of working roller ways is used, the speed of a roller is 56 revolutions / minute, and the bit speed is not greater than 20 revolutions / minute; when the rolled pieces are bitted by the roller, a front working roller way stops revolving; the conditions that the rolling reduction is 40mm and the steel throwing speed is 30 revolutions / minute are controlled by a steel turning pass, the working roller ways are started, steel is stopped at the position of a steel turning hook, and the steel and the steel turning hook are turned together; when an II hole is rolled, two groups of working roller ways are adopted, the rolling speed is 85 revolutions / minute, and the bit speed is not greater than 20 revolutions / minute; when the rolled pieces are bitted into 3 / 4 of the roller, the speed is 30 revolutions / minute; after a second rolled piece is bitted, the speed is 85 revolutions / minute; when the rolled pieces are thrown out, the speed is 30 revolutions / minute; when an III hole is rolled, a single rolled piece is adopted for rolling, three groups of working roller ways are adopted, and the rolling speed is 120 revolutions / minute; and when a second pass of a first rolled piece is rolled, the head part of the second rolled piece is stopped at the front of the manipulator. According to the steel rolling method, the problem of rolling a square ingot and a flat ingot with high / low carbon and stainless steel by traditional old equipment under the condition that the main body equipment is not reconstructed is solved.

Description

technical field [0001] In particular, the present invention relates to a method of rolling steel using a 1000 mm reversing blooming mill. Background technique [0002] In the production process of iron and steel enterprises, the blooming mill is mainly used to open billets for the next process. The existing blooming mill was produced in the 1950s. With the progress of the times, the blooming mill is of great importance in the entire production process of the enterprise. However, the equipment produced in the 1950s was limited by its functions, and the speed of the main motor of the power system could not meet the production requirements. Contents of the invention [0003] The present invention proposes a steel rolling method aiming at the existing old equipment - 1000mm reversible preliminary rolling mill for rolling high and low carbon, stainless steel square ingots and flat ingots, with the purpose of overcoming the problem of rolling high and low carbon, stainless st...

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a steel rolling method aiming at the existing old equipment - 1000mm reversible preliminary rolling mill for rolling high and low carbon, stainless steel square ingots and flat ingots, with the purpose of overcoming the problem of rolling high and low carbon, stainless steel square ingots and flat ingots. It is easy to cause frequent equipment accidents, low production efficiency, unstable quality, and increased costs.