Wear-resistant transition plate for outlet of finishing mill

Abstract

The invention discloses a wear-resistant transition plate for an outlet of a finishing mill. The transition plate comprises a transition plate base plate and a lining plate, the lining plate is arranged at the top of the transition plate base plate and comprises an inlet lining plate and an outlet lining plate, the inlet lining plate is arranged in front of the outlet lining plate, the inlet lining plate and the outlet lining plate are respectively provided with countersunk bolts connected with the transition plate base plate, and the inlet lining plate and the outlet lining plate are respectively made of titanium alloy plates. By means of the mode, the inlet lining plate and the outlet lining plate are specially designed, the abrasion-resistant transition plate for the outlet of the finishing mill has the advantages of being resistant to high temperature, abrasion and impact and the like, the service life is long, small sub-lining plates can be adopted for splicing, the deformation problem is prevented, the sub-lining plates can be independently replaced after being damaged, the maintenance cost is reduced, by means of the chamfer and the design lower than the rolling horizontal line, the problems that strip steel is piled up at the outlet of the finishing mill, and the lower surface is scratched in a hot state are solved.

Description

technical field [0001] The invention relates to the field of hot continuous rolling mills, in particular to a wear-resistant transition plate at the exit of a finishing mill. Background technique [0002] Since the distance between the work roll and the exit roller table of the final stand of the finishing mill is relatively wide, about 2 meters, a transition device is required to improve the strip-threading performance of the strip, but at the same time, it is inevitable that the strip and the transition device will be separated. Friction, especially the high temperature and softness of the strip at the exit of the finish rolling, in the state of no tension at the head and tail of the strip, and when waves appear, it is easy to cause hot scratches on the strip, and even cause piles of steel. [0003] At present, in order to reduce the probability of scratching and stacking of steel strips, most steel mills choose wear-resistant steel, heat-resistant steel, bakelite and othe...

AI Technical Summary

Problems solved by technology

[0002] Since the distance between the work roll and the exit roller table of the final stand of the finishing mill is relatively wide, about 2 meters, a transition device is required to improve the strip-threading performance of the strip, but at the same time, it is inevitable that the strip and the transition device will be separated. Friction, especially the high temperature and softness of the strip steel at the exit of the finish rolling, in the state of no tension at the head and tail of the strip steel, and when waves appear, it is easy to cause hot scratches on the strip steel, and even cause piled steel

[0003] At present, in order to reduce the probability of scratching and stacking of steel strips, most steel mills choose wear-resistant steel, heat-resistant steel, bakelite and other materials to make the transition plate installed between the work roll and the exit roll table of the final stand of the finishing mill. However, the above-mentioned transition plate has the characteristics of not being impact-resistant, easily deformed, and prone to peeling. It has a short service life and frequent maintenance and replacement. Generally, it needs to be replaced once a week. It takes several hours to complete the replacement each time, and the maintenance cost is high. Affected normal production and needs to be improved

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