A kind of work roll grinding method and work roll
A work roll and grinding technology, which is applied in the field of steel rolling, can solve the problems of poor camber control of the intermediate billet, etc., and achieve the effect of improving the leveling effect, improving the control level, and reducing deviation
Active Publication Date: 2020-09-25
BEIJING SHOUGANG CO LTD
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Problems solved by technology
[0004] The embodiment of the present invention provides a working roll grinding method and working rolls, which solves the technical problem of the prior art that the control effect of the camber camber of the intermediate billet at the initial stage of roll changing is not good.
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Embodiment Construction
[0033] The embodiment of the present invention solves the technical problem in the prior art that the control effect of camber camber of the intermediate billet at the initial stage of roll changing is not good by providing a work roll grinding method and the work roll.
[0034] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0035] refer to figure 1 and figure 2 As shown, a kind of work roll grinding method provided by the implementation of the present invention comprises the following steps:
[0036] S1. Grinding the initial roll shape of the roll body of the original work roll to form a semi-finished work roll whose initial roll shape is a flat roll shape or a negative crown roll shape.
[0037] It should be noted that the convexity is the diameter D at the center of the roll surface of the ori...
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Abstract
The invention discloses a working roller grinding method and a novel working roller and relates to the technical field of steel rolling. The working roller grinding method comprises the steps that of a roller body of an original working roller is ground to be in an initial roller shape, so that a semi-finished working roller with the initial roller shape being the flat roller shape or the negative convexity roller shape is formed; and a plurality of annular roller grooves distributed in the axial direction of the roller body are ground in the roller body of the semi-finished working roller, so that the novel working roller to be conveyed onto a machine is formed, wherein the annular roller grooves are each in an annular shape extending in the circumferential direction of the roller body of the semi-finished working roller. The technical problem that in the prior art, the effect of control over the edge camber of an intermediate billet in the initial period of roller replacing is poor is solved, and the control level of the edge camber in the initial period of rough rolling and roller replacing is improved.
Description
technical field [0001] The invention relates to the technical field of steel rolling, in particular to a work roll grinding method and a work roll. Background technique [0002] Due to roll wear and strip shape control, the rough rolling stand of hot continuous rolling needs to arrange the replacement of work rolls according to the rolling volume. At the initial stage of each roll change (generally, the roll is on the machine for 1 day or the rolling volume is less than 10,000 tons), the rough rolling stand will have the problem of difficult control of the camber of the intermediate billet, and the camber out of control will affect the quality of subsequent products. Both control and stability control can be detrimental. [0003] In order to control the camber of the intermediate slab at the initial stage of roll change, it is generally improved by increasing the leveling value of the roughing stand and adjusting the load at the early stage of roll change. At the same time...
Claims
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IPC IPC(8): B24B5/16B21B27/02
CPCB21B27/02B24B5/167
Inventor 尹玉京王秋娜霍光帆李金保张宝辉王伦周阳王淑志
Owner BEIJING SHOUGANG CO LTD