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Online roller grinding method capable of realizing reverse width rolling

A technology of rolling and grinding rolls, which is applied in the field of online grinding rolls, can solve the problems of difficult control of plate shape quality, lack of grinding roll control methods, etc., and achieve the effect of expanding rolling kilometers, large application and promotion value, and increasing grinding amount

Inactive Publication Date: 2012-08-01
XIAMEN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of an effective grinding roll control method, the uneven wear of the roll shape has not been solved, especially the quality of the plate shape is more difficult to control during inverse wide rolling

Method used

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  • Online roller grinding method capable of realizing reverse width rolling
  • Online roller grinding method capable of realizing reverse width rolling
  • Online roller grinding method capable of realizing reverse width rolling

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Embodiment Construction

[0043] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] What the present invention discloses is an on-line roller grinding method that can realize inverse wide rolling. Before the description, what is the key to realize inverse wide rolling? Such as Figure 4 As shown, in order to realize inverse wide rolling, the key is to ensure that the roll shape in the roll pass area 13 is good, that is, the roll shape in the central groove area is flat and there are no obvious slopes on both sides. The plate-through area 13 refers to the area where the steel strip contacts the rolls during the entire rolling process. For a rolling mill with roll shifting function, the plate-through area includes the maximum plate width and the amount of roll shifting on both sides. The number 14 in the figure is the roll shape of the lower machine after adopting the conventional online grinding method. Due to...

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Abstract

The invention discloses an online roller grinding method capable of realizing reverse width rolling. According to the maximum plate width of band steel and the roller altering amount of working rollers in an actual rolling plane, an effective working area range of a roller is determined, an online roller grinding machine is controlled to grind an effective working area in the center of the roller within limited rolling time, and an invalid area which is not contacted with the band steel is not ground, so that a through plate area of the roller is ground to the maximum extent; and therefore, a flat roller in the through plate area of the roller is generated, and the reverse width rolling is realized finally.

Description

technical field [0001] The invention relates to metallurgical production technology, in particular to an online roller grinding method capable of realizing inverse wide rolling. Background technique [0002] Under the ever-changing and harsh market situation, the demand for diversification of steel types and specifications and small batches force hot-rolled strip mills to organize production with a more flexible rolling plan, that is, "free rolling" can be realized . However, in the actual hot rolling production, the uneven wear of the roll shape in the rolling process limits the rolling plan in the hot rolling field to the tortoise shell structure rule that the strip width transitions from wide to narrow, which seriously restricts the rolling plan Orchestration flexibility. [0003] Free rolling refers to the rolling technology in which the steel type, thickness, and width of the strip can transition freely almost without restriction within a roll changing cycle, especial...

Claims

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Application Information

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IPC IPC(8): B24B5/37B24B49/02
Inventor 陈水宣张健民李维刚
Owner XIAMEN UNIV OF TECH
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