Auxiliary examination method for weaving texture defect on surface of roller

Abstract

The invention discloses an auxiliary examination method for a weaving texture defect on the surface of a roller. The method comprises the step of: polishing a ground roller surface by using sandpaper, wherein the surface is the roller surface besides rolling width. In the method, after polishing the ground roller surface by using the sandpaper, the smooth finish and the reflection rate of the roller surface are reduced so that the grinding texture on the roller surface can be observed clearly. Because the polished surface is the roller surface besides the rolling width, the surface quality of a belt material cannot be affected by the polished roller surface. The auxiliary examination method for the weaving texture defect provided by the invention is simple to operate, can rapidly discover whether the ground roller surface has a texture with a depth, and can improve the accuracy of stripe judgment of the roller surface by comparing with a standard sample of a product.

Description

technical field [0001] The invention relates to the technical field of roll surface precision inspection, and more specifically relates to an auxiliary inspection method for weave pattern defects on the roll surface. Background technique [0002] Aluminum processing is to process aluminum ingots into materials by plastic processing methods. The main methods are rolling, extrusion, stretching and forging. Among them, the three elements of aluminum processing and rolling are rolls, rolled pieces and lubricating media. The surface quality of the rolls will directly affect the surface quality of the rolled pieces (aluminum strip). Microscopically, the surface of the roll and the strip is concave-convex (see figure 1 ). When the machining accuracy of the roll is poor and the grinding process parameters do not match, the surface roughness will be aggravated, thus forming stripes on the macroscopic scale. If it cannot be eliminated after electrolysis by the user, it will form a g...

AI Technical Summary

Problems solved by technology

Under the original conditions, it is entirely up to the grinding personnel to directly observe the surface of the polished roll with the naked eye based on the production experience accumulated at ordinary times. Due to the high surface finish of the polished roll and strong reflection, it is difficult to make an accurate judgment on the surface stripes under the naked eye. Only the surface quality of the strip after rolling on the roll can reflect whether the roll grinding produces texture

This judgment method lags behind and becomes a potential hidden danger affecting the surface quality of the product

Therefore, unqualified rolls often enter the rolling process, resulting in "weaving pattern" defects on the surface of the product after rolling

Images