Making process of combined hard alloy roll

Abstract

The production process of hard alloy composite roller includes: making roll shaft, retainer ring forge blank and hard alloy roll collar respectively undergo the processes of heat treatment and ageing treatment, rough machining roll shaft and retainer ring forge blank, quenching roll shaft and working cohesive surface, then making the cohesive surface of roll shaft undergo the process of electrochemical film-forming treatment, and respectively applying high-strength high-temp. resistant adhesive agent mixed with ultrafine tungsten carbide powder to the cohesive surface of roll shaft and inner and side surfaces of hard alloy roll collar and retainer ring, adhering and solidifying, making defect detection, fine finishing roll surfaces of roll shaft and roll collar to obtain accepted composite roll, oil sealing, packaging and putting in storage.

Description

technical field [0001] The invention relates to the shape and structure of a roller with a sleeve, in particular to a manufacturing process of a composite bonded hard alloy roller. Background technique [0002] Roll is a common equipment component in the metallurgical and mechanical processing industries, and it is also an industrial material that is easily damaged and consumed. Due to their long-term working under the harsh working conditions of high temperature and high pressure, they are particularly prone to wear and tear, resulting in a very short service life. The usual way can only be to frequently replace these fragile rolls, which not only wastes a large amount of industrial materials but also wastes valuable time, thereby reducing the efficiency of production. However, the price of cemented carbide roller ring is high, and the one-time investment of users is large, so it is difficult to popularize and apply it. The research on reducing cemented carbide rings and ...

AI Technical Summary

Problems solved by technology

Although this compound roll has a long service life, its processing and manufacturing are complicated and its assembly requirements are high.

Especially in the special case of producing large rolls, the manufacturing and assembly processes are relatively complicated, the production cost is also quite high, and the tightness of the mechanical fit is difficult to fully meet the process requirements

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