Preparation method of wear-resistant extrusion roller

Abstract

The invention belongs to the field of preparation of industrial crushing machinery, and provides a preparation method of a wear-resistant extrusion roller. The method comprises the steps of cavity preparation, wear-resistant stud placement, mother liquid pouring, heat treatment, inner hole machining, hot charging, transition layer surfacing, wear-resistant layer surfacing and pattern surfacing. Steel-bonded alloy wear-resistant studs have good impact resistance, wear resistance and weldability, stress concentration can be reduced, a base body does not easily crack, the skeleton supporting effect is achieved, and a transition layer and a wear-resistant layer are not peeled off in a large area; the transition layer improves the weldability of a roller sleeve base body, enhances the metallurgical bonding strength of the wear-resistant layer and the roller sleeve base body, and reduces the crack generation tendency; before surfacing of the transition layer, the wear-resistant layer and wear-resistant patterns, a roll shaft and a roll sleeve are subjected to hot charging so that the phenomena that the roll shaft and the roll sleeve are not firmly connected and the wear-resistant layer and the wear-resistant patterns are easily peeled off due to hot charging after welding are changed; and the service life of the wear-resistant extrusion roller prepared by the method is prolonged by more than one time compared with that of the extrusion roller with a conventional structure.

Description

technical field [0001] The invention belongs to the field of industrial crushing machinery preparation, and in particular relates to a preparation method of a wear-resistant squeeze roller. Background technique [0002] Roller press is a new type of high-efficiency and energy-saving powder equipment. It crushes materials through high-stress extrusion. Due to its high efficiency and energy saving, it presents unique advantages and prospects in cement, metallurgy, ore and other crushing industries. When the extrusion roller is crushing ore, cement clinker and other materials, the roller surface is subjected to severe high-stress abrasive wear, plowing wear and fatigue damage, so the wear resistance and service life of the extrusion roller surface become the characteristics of the roller pressure. The key technical indicators of such equipment. The working principle of the roller press is generally to feed the material to be processed into the gap between two counter-rotating ...

AI Technical Summary

Problems solved by technology

[0007] The invention provides a preparation method of a wear-resistant extrusion roller, which solves the following technical problems: ① the wear-resistant studs will not fall off and have good weldability and are metallurgically combined with the wear-resistant layer; ② the matrix of the extrusion roller has good toughness and is not easy to crack; ③Improve the weldability of the extrusion roller parent body to make the metallurgical bond between the wear-resistant layer and it firm; ④The roller shaft and the roller sleeve are firmly combined, and the working cycle is long; ⑤The extrusion roller has the function of picking up materials, and the production efficiency is high

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