Centrifugal composite high-wear-resistance cone-type vertical mill roller sleeve and manufacture method of vertical mill roller sleeve

Abstract

The invention discloses a centrifugal composite high-wear-resistance cone-type vertical mill roller sleeve and a preparation method of the vertical mill roller sleeve. The vertical mill roller sleeve comprises a roller sleeve body, wherein the inner surface and the outer surface of the roller sleeve body are respectively in a cone shape, and the roller sleeve body is in a double-layer structure with a high-toughness layer as the inner layer and a high-wear-resistance layer as the outer layer. The invention discloses the centrifugal composite high-wear-resistance cone-type vertical mill roller sleeve, and the service life of the vertical mill roller sleeve is prolonged by more than 2.5 times than that of a surfacing welding roller sleeve when the vertical mill roller sleeve is applied and used in industries of mine, cement, metallurgy, coal chemical industry, glass and the like. The centrifugal composite high-wear-resistance cone-type vertical mill roller sleeve has the advantages that the effects of strong outside and tough inside are realized, and the accident resistance capability of the roller sleeve is obviously improved. The full metallurgical bonding is realized under the centrifugal force effect, and the generation of casting defects such as cracks, mixed impurities and air holes is avoided. The failure forms such as block falling and peeling caused by microcracks of surfacing welding at the outer layer are thoroughly eliminated, and the lifelong free maintenance can be realized; and a composite casting method has the advantages that the manufacture cost of the roller sleeve is reduced, the production period is shortened, and in addition, the problems of block falling, peeling, breakage and the like in the use process of the surfacing welding roller sleeve are solved.

Description

technical field [0001] The invention belongs to the field of mechanical processing, and in particular relates to a centrifugal composite high wear-resistant cone type vertical mill roller sleeve and a manufacturing method thereof. Background technique [0002] The structure of the rolling roller sleeve in the prior art is made of high-Cr iron. The production method is: overall static casting. There is a technical problem: [0003] 1. The overall material is high-Cr iron material with high hardness and difficult processing; [0004] 2. Made of a single material, the inner layer has poor toughness. Axial cracking and falling off during use; [0005] 3. The service life is short and the cost is high. Contents of the invention [0006] The object of the present invention is to provide a centrifugal composite high wear-resistant cone type vertical grinding roll sleeve. [0007] Another object of the present invention is a manufacturing method of a centrifugal composite hi...

AI Technical Summary

Problems solved by technology

[0003] 1. The overall material is high-Cr iron material with high hardness and difficult processing;

[0004] 2. Made of a single material, the inner layer has poor toughness

Axial cracking and falling off during use;

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