Rolling mill roll series device and rolling mill used for rolling mill roll series device

Abstract

The invention discloses a rolling mill roll series device. The rolling mill roll series device comprises a roller and a coloring roller which is arranged in an entrance of the roller. The working face of the coloring roller is higher or lower than the working face of the roller. Due to the fact that rolled wool passes the coloring roller before entering the roller, and the working face of the coloring roller and the working face of the roller are located at different heights, the coloring roll enables the rolled wool to deviate the roller which is located above the rolled wool or the roller which is located under the rolled wool and enables the contact area of the rolled wool and the roller to be enlarged, so friction between the rolled wool and the roller increases, the polishing effect of roller on the rolled wool increases, and color difference defect of a rolled product is relieved. The rolling mill roll series device aims at solving the color difference defect of the rolled product, is free from increasing roughness of the roller and conducting repeatedly rolling, reduces production cost of the rolled product, shortens date of delivery of the product, reduces possibility of new defects of the product and increases rate of finished products of the rolled products. The invention further discloses a rolling mill with the rolling mill roll series device.

Description

technical field [0001] The invention relates to the technical field of rolling, in particular to a rolling mill roll system device. The invention also relates to a rolling mill having the above-mentioned rolling mill roll train arrangement. Background technique [0002] In the process of rolling the product, due to the uneven material of the rolled wool itself, the rolled wool usually has chromatic aberration defects. The so-called chromatic aberration defect refers to the light and dark phases on the surface of the plate or strip parallel to the rolling direction. Stripes or bands with uneven color defects, and after passing through the rolls of the rolling mill roll system, due to the limited conditions of the rolling process, the color difference defects of the product cannot be effectively eliminated, resulting in a high reject rate. Especially when using relatively low-cost cast-roll wool as rolling wool, the above-mentioned problems will be more prominent. [0003] A...

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Problems solved by technology

[0003] At present, the following two methods can be used to overcome the above-mentioned chromatic aberration defects: the first is to increase the roughness of the roll, so that the surface roughness of the rolled product increases accordingly, thereby enhancing the diffuse reflection of light and covering the product. Color difference defect, although this method can cover up the color difference defect of the product, but due to the roughness of the product, it is difficult for the final product to meet the roughness requirements of the user, so it is not suitable for mass production; the second is to increase the product The number of rolling passes is to reduce the color difference defects of the product as much as possible through multiple rolling passes. However, increasing the rolling pass will increase the energy consumption and manpower input accordingly, which will make the production cost of the product higher and prolong the delivery of the product period, and, with the increase of rolling passes, the possibility of new defects in the product will also increase, so that the yield of the product cannot be effectively guaranteed

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