Rolling method, continuous casting rolling method, and continuous casting rolling device

Abstract

A rolling method according to one embodiment of the present invention may comprise: a rolling step for screwing down a supplied slab; and a heating step, performed prior to or during the rolling step, for heating the slab by placing a heater in the travel path of the slab immediately after a spot of the slab at which the height of the slab uniformly converges passes through the position of the heater in the travel direction of the slab, wherein the heater elevates or retains the temperature of the slab. A continuous casting rolling method according to another embodiment of the present invention comprises: a continuous casting step for producing a slab; a rolling step; and a heating step, wherein the heating step places a heater in the travel path of the slab immediately after the initial spot of the slab at which the height of the slab in the direction perpendicular to the travel direction of the slab begins to be constant passes through the position of the heater in the travel direction of the slab. In addition, another embodiment of the present invention suggests a continuous casting rolling device for performing the aforementioned method.

Description

Technical field [0001] The present invention relates to a rolling method, a continuous casting and rolling method, and a continuous casting and rolling device, and more specifically, to an invention for preventing damage to components provided for layout during the execution of continuous casting and rolling. Background technique [0002] The device cost and operation cost of the rolling process using the high temperature of the cast slab solidified in the continuous casting machine are lower than the existing process, and therefore, it is currently widely used. [0003] In addition, while continuously utilizing continuous casting and rolling, a discontinuous process capable of performing rolling independently of the continuous casting can also be implemented, which is disclosed in detail in Korean Patent Publication No. 1990-7001437. [0004] That is, the continuous rolling mode in which the continuous casting process and the rolling process are continuously implemented and the disc...

AI Technical Summary

Problems solved by technology

[0007] However, if figure 2 As shown in (b), in the initial step of the continuous rolling mode or in the discontinuous rolling mode, the front end portion of the cast slab 2' is rolled in the first rolling section 21 while being warped up and down. or camber from side to side, thereby creating a problem of collision with the heater 40'

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