Making process of combined hard alloy roll

A cemented carbide and manufacturing process technology, applied in metal rolling, manufacturing tools, metal rolling, etc., can solve complex manufacturing and assembly processes, high production costs, and difficulty in fully meeting process requirements for mechanical fit tightness, etc. question

Inactive Publication Date: 2003-01-08
ZIGONG CEMENTED CARBIDE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Making process of combined hard alloy roll
  • Making process of combined hard alloy roll
  • Making process of combined hard alloy roll

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] The present invention will be further described in detail below in conjunction with the examples and accompanying drawings: first, carry out conventional heat treatment to the roller shaft 1 and retaining ring 2 forged blanks manufactured according to the design respectively, so as to reduce their Brinell hardness values; Carry out aging treatment to eliminate its internal stress; then carry out mechanical rough machining on the forging blank of roller shaft 1 and retaining ring 2 respectively, and carry out oil quenching and tempering treatment on roller shaft 1; after processing the bonding surface of roller shaft 1 , the bonding surface of the roller shaft 1 is subjected to electrochemical oxidation treatment; then, the bonding surface of the roller shaft 1, the inside and the side of the hard alloy roller ring 3 and the retaining ring 2 are coated with 1.5% ultrafine carbonization Tungsten powder and methacrylic acid prepolymer as the main component of high-strength ...

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PUM

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B27/02B22F3/10B22F7/02
Inventor 蔡水金
Owner ZIGONG CEMENTED CARBIDE CORP
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