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Abrasion-proof composite roller, board and manufacturing method thereof

A composite roller and alloy ceramic technology, which is applied in the field of roller or roller plate and its preparation, can solve the problems that the ceramic layer cannot meet the high stress, the size of the roller and the roller plate is large, and it is not easy to compound the ceramic layer, so as to solve the problem that it is difficult to guarantee the quality, Effect of reducing metal consumption, improving wear or abrasion resistance and compressive strength

Active Publication Date: 2008-08-13
CHENGDU LEEJUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the roller or roller plate works under the condition of high stress, the ceramic layer cannot meet the requirement of high stress by using the above method, and it is easy to break and damage
Moreover, the size of the rollers and roller plates used in the roller press is huge, and it is not easy to compound the ceramic layer on the metal substrate by the above-mentioned technology.

Method used

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  • Abrasion-proof composite roller, board and manufacturing method thereof
  • Abrasion-proof composite roller, board and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0020] In the specific embodiment 1 of the present invention, a wear-resistant composite roller 4 is processed.

[0021] Metal or non-metal high-hardness wear-resistant ceramic alloys that match the base material are preferred, such as WC, Ag 2 o 3 , SiC, ZrC, BeO, CaO, MgO, TiC, VC, SiO 2 , ZrO 2 、SiN 4 , B 4 C, NbC, etc., to make a porous alloy ceramic skeleton 3, the porous alloy ceramic skeleton 3 can be in the form of an orifice plate, a mesh plate or a foam plate, as shown in Figures 2 and 3. Its size conforms to the shape and size requirements of the working layer of the roller (plate). The finally formed porous alloy ceramic skeleton 3 preferably satisfies the conditions of porosity (volume ratio) of 15-85%, macro hardness HRC73-115, microhardness HV1100-4000, and compressive strength>1000MPa.

[0022] The formed porous alloy ceramic skeleton 3 is preset on the working layer 2 on the metal substrate 1, preheated at 150-800°C for 3-10 hours; then the metal substra...

specific Embodiment 2

[0024] In the specific embodiment 2 of the present invention, a wear-resistant composite roller plate 6 is processed.

[0025] Form the porous alloy ceramic skeleton 5 similarly to Example 1, then pre-set the formed porous alloy ceramic skeleton 5 on the working layer on the metal substrate of the wear-resistant composite roll plate 6, and preheat it under the condition of 150-800°C for 3-10 hours; then heat the metal matrix of the wear-resistant composite roll plate 6 to 1200-1700°C to form a liquid state, and then adopt a vacuum casting process to form a metallurgically bonded whole, and the wear-resistant composite plate is made as shown in Figure 4.

[0026] When selecting the alloy material in the porous alloy ceramic skeleton 5 in the above embodiment, the alloy material that can fuse with the matrix metal material should be preferred.

[0027] The above-mentioned wear-resistant composite roller and plate have passed industrial trials, and their comparative wear speed ha...

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Abstract

The invention discloses an abrasion-proof complex roller, plate and a producing method thereof. The device thereof comprises a metal base of the roller and the plate, a porous ceramal framework covers the working surface of the metal base. The metal on the working surface of the metal base and the porous ceramal framework are heated and melt to be a metallurgically combined integral. The invented abrasion-proof roller and plate greatly improve and increase integral abrasion-proof property and compression resistance of the complex working surface, the service life is improved by 3-5 times, metal cost is decreased by 2 times compared with parts produced by casting forge work heating processing or intensifying wearing resistance property by weld deposit. The optimal price performance can be obtained by reasonable allocation of prefabricated frameworks, and the problem that the uneven allocation of hard phase and the ratio is difficult to be controlled so that the quality is difficult to be guaranteed during particle direct permeation complex production is solved.

Description

technical field [0001] The invention relates to a roller or a roller plate in equipment for crushing and grinding materials under the condition of high-stress abrasive wear and wear resistance and a preparation method thereof. Background technique [0002] General industrial and mining industries, such as building materials, cement, metallurgy, mining and other industries, generally use roller presses, vertical mills, crushers, mills and other machinery and equipment in the process of industrial material processing. There is a large amount of metal consumption in the process of crushing and grinding. Ordinary materials are difficult to withstand high working stress and abrasive wear. The current solutions include metal casting and forging parts with high and low alloy formulas, which are used directly or after heat treatment, and metal materials are pre-protected by overlay welding with imported or domestic alloy welding materials, but the use effect is not good. It is ideal...

Claims

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Application Information

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IPC IPC(8): B22D19/16B22D13/00
Inventor 何亚民魏勇徐智平
Owner CHENGDU LEEJUN TECH CO LTD
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