Turning roll

Abstract

The invention provides a turning roll. A chromate treatment layer is arranged on the surface of a substrate of the turning roll. A concave-convex layer is arranged on the outer surface of the chromate treatment layer. According to the turning roll, texturing is not carried out on a roll face with high strength, but roughness of the roll face is achieved through loosening holes on the chromate treatment layer on the roll face. According to the turning roll, technical requirements of a common enterprise are achieved, the problem that a shot peening face dead corner and other roll faces are not even and exist in the hair control process of an existing turning roll is solved, and difficult problems that the producing cost is high and the production period is long are solved.

Description

technical field [0001] The invention relates to a turning roller. Background technique [0002] At present, the technologies used for roller surface texturing include shot peening and laser texturing. Among them, the equipment required for laser texturing is expensive and the production cost is expensive, and the roughness of the roller surface decays quickly, so it is rarely used in actual production. technology to achieve. The existing steering roller substrate 1 has a convex-concave layer on the roller surface, and a chrome-plated layer 2 is formed on the surface of the convex-concave layer. In the process of processing, the roughening (convex and concave layer) processing of the roll surface has been carried out by shot blasting the roll surface substrate to make the turning roll surface substrate produce more than R Z The roughness of 3.2, and then hard chrome plating is carried out on the base of the roll surface, and the roughness of the base and the uniformity of t...

AI Technical Summary

Problems solved by technology

The work rolls produced by this process route have high requirements for shot peening treatment, high production cost and long production cycle; and there are problems such as poor repeatability, limited roughness range of texturing, and dead angle of shot peening.

In terms of the use requirements of the steering roll, the required roll surface hardness is above 55 HRC. For the shot peening process, it is extremely uneconomical to perform shot peening texturing on the roll surface with this hardness, and this can be done. There are very few professional manufacturers of hard roller surface roughening, which causes the production cycle of the outsourced manufacturers to be too long, which affects the production delivery period, and the production cost is relatively expensive

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