Lubricating and rolling method for medium-thickness plate

By spraying the turbid ring water under the surface of the upper roller and the underplalade of the middle thick plate, the problem of high friction and roller loss caused by the lack of lubrication caused by the lack of lubrication in the lower intercourse is solved, and the effect of balanced surface stress on the board and reduced energy consumption.

CN119368564APending Publication Date: 2025-01-28TANGSHAN HEAVY PLATE CO LTD
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Patent Information

Application Number
CN202411460206.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-18
Publication Date
2025-01-28

AI Technical Summary

Technical Problem

During the rolling process of medium-thick plate steel, due to the lack of lubrication of the lower contact arc, the friction is high, the torque and current of the lower roller are large, resulting in larger roller temperature and wear than the upper roller, and it is easy to have plate buckles or tilts.

Method used

During the rolling process of the middle thick plate, the upward work roller and the surface of the surface of the roller and the surface of the plate are sprayed with turbid ring water as a lubricant to ensure the lubrication of the arc deformation zone, reduce friction, and adjust the spraying by adjusting the spraying. Water flow and pressure to ensure lubrication effect.

Benefits of technology

By strengthening the lubrication of the under -contact arc deformation zone, the main motor torque is reduced, the upper and lower surface stress of the board tends to balance, avoiding the phenomenon of the plate or the head of the plate, and the energy consumption and roller are reduced.

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Abstract

The invention relates to a medium-thickness plate lubricating and rolling method, and belongs to the technical field of medium-thickness plate rolling processes in the metallurgical industry. According to the technical scheme, in the medium and heavy plate rolling process, turbid circulating water is sprayed to an arc-shaped deformation area where a medium and heavy plate rolling mill lower working roller (2) makes contact with the lower surface of a plate blank to serve as a lubricating agent, so that the friction force between the medium and heavy plate rolling mill lower working roller (2) and the lower surface of the plate blank is kept consistent with the friction force between a medium and heavy plate rolling mill upper working roller (1) and the upper surface of the plate blank; the turbid circulating water flow is greater than 8m < 3 > / h, and the turbid circulating water pressure is greater than 0.5 MPa. The device has the beneficial effects that the friction force is reduced and the torque of the lower main motor is reduced by enhancing the lubrication of the lower contact arc deformation area between the lower working roll and the lower surface of the plate blank, so that the stress on the upper surface and the lower surface of the plate blank tends to be balanced, and head buckling or head warping accidents of the plate blank are avoided.
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