Cemented carbide composite roll ring, composite roll ring group and composite roll ring manufacturing method

Abstract

The embodiment of the invention discloses a cemented carbide composite roll collar and a preparing method thereof. The cemented carbide composite roll collar comprise two steel inner sleeves and a cemented carbide outer sleeve; the steel inner sleeves comprises base parts and convex parts, the base parts and the convex parts are formed integrally, the base parts and the convex parts present a hollow cylinder shape respectively, the base parts and the convex parts are coaxial and have a same inner diameter, and the outer diameter of the base parts is bigger than that of the convex parts; the cemented carbide outer sleeve presents a hollow cylinder shape, the inner diameter of the cemented carbide outer sleeve is bigger than the inner diameter of the convex part, the axial width of the cemented carbide outer sleeve is smaller than the sum of the axial width of the two convex parts in the two steel inner sleeves, the outer diameter of the cemented carbide outer sleeve is equal to that of the base parts; the gap between the cemented carbide outer sleeve and the two steel inner sleeve is filled with a binding layer, the end faces of the steel inner sleeves are provided with material filling holes communicated with the gap; a design for the steel inner sleeve and the cemented carbide outer sleeve remarkably increases the bonding strength of the steel inner sleeve and the cemented carbide outer sleeve.

Description

technical field [0001] The invention relates to the technical field of metal processing, in particular to a cemented carbide composite roller ring, a composite roller ring group and a manufacturing method for the composite roller ring. Background technique [0002] The roll is a commonly used equipment part in the metallurgical and mechanical processing industries, and it is also an industrial material that is easily consumed. Compared with the traditional roll rings of other materials, the cemented carbide roll ring has high hardness, high compressive strength, Good wear resistance, good corrosion resistance, small friction coefficient, low thermal conductivity, long service life, high precision and good quality of rolled products, etc. It is often used in high-speed wire rolling, but at the same time, the weight of cemented carbide roll rings is large , Difficult processing, high scrap rate, large waste of alloy resources, high price, poor impact resistance and shock resis...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a cemented carbide composite roll ring, composite roll ring group and composite roll ring manufacturing method to solve the problem of low bonding of the existing cemented carbide composite roll rings

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