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A kind of high wear-resistant liner and its preparation method

A high wear-resistant and lining technology, applied in the field of wear-resistant materials, can solve the problems of inability to play a wear-resistant role, uneven distribution of through holes, and decreased use effect, and achieves improvement, reinforcement, and resistance to wear. Effects of improved impact toughness and wear resistance

Active Publication Date: 2020-09-22
湖北秦鸿新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution has the following disadvantages: 1. The size of the through hole is large, and the reinforcement must be wrapped with molten steel during pouring to complete the production; 2. After pouring, the molten steel wraps the spliced ​​reinforcement so that different ceramic reinforcements are connected. , and it is the reinforcement that actually plays the role of wear resistance. When the metal phase is worn, gaps will be formed between the reinforcements, resulting in a sharp decline in the use effect of the product, which cannot play a good wear resistance; 3. The through hole is in the Uneven distribution on the reinforcement body, poor wear resistance of the product

Method used

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  • A kind of high wear-resistant liner and its preparation method
  • A kind of high wear-resistant liner and its preparation method
  • A kind of high wear-resistant liner and its preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 , figure 2 , image 3 As shown, a high wear-resistant liner includes a porous ceramic matrix and a metal matrix 3 filled in the pores of the porous ceramic matrix. The porous ceramic matrix is ​​composed of the first porous ceramic plate 1 and the first porous ceramic plate 1 above the second porous ceramic plate 2, the first porous ceramic plate 1 is provided with a number of regular polygonal first casting through holes 11, the second porous ceramic plate 2 is provided with a number of A regular polygonal second pouring through hole 21, the second pouring through hole 21 forms a partial shield for each first pouring through hole 11. The high wear-resistant liner of the present invention organically combines the toughness and bending resistance of metal with the high wear resistance, high strength and oxidation resistance of ceramics, and the overall strength, impact toughness and wear resistance are all greatly improved. The first pouring through ...

Embodiment 2

[0044] A method for preparing a high wear-resistant liner, comprising the following steps:

[0045] S1, in parts by mass, weighed with a density of 3.2g / cm 3 , 50 parts of silicon carbide ceramic particles with an average particle size of 0.1mm and a density of 3.2g / cm 3 1. 50 parts of silicon nitride ceramic particles with an average particle diameter of 500um, 10 parts of titanium nitride with a submicron average particle diameter of 600nm, and 8 parts of phenolic liquid resin, put into a container and mix uniformly to obtain a mixed material;

[0046] S2, pouring the mixed material into different molds for molding to obtain preform A and preform B;

[0047] S3, put preform A and preform B into an atmosphere furnace, sinter at 1200°C for 40 minutes, keep warm at 980°C for 5 hours, after leaving the furnace and air-cool, hold at 250°C for 6 hours, and cool in the furnace. The first porous ceramic plate 1 and the second porous ceramic plate 2;

[0048] S4, after polishing t...

Embodiment 3

[0050] A method for preparing a high wear-resistant liner, comprising the following steps:

[0051] S1, by mass parts, weighed density is 3.25g / cm 3 , 45 parts of silicon carbide ceramic particles with an average particle size of 0.1mm and a density of 3.2g / cm 3 55 parts of silicon nitride ceramic particles with an average particle diameter of 500um, 20 parts of titanium nitride with a submicron average particle diameter of 600nm, and 14 parts of epoxy resin, put into a container and mix uniformly to obtain a mixed material;

[0052] S2, pouring the mixed material into different molds for molding to obtain preform A and preform B;

[0053] S3, put preform A and preform B into an atmosphere furnace, sinter at 1250°C for 35 minutes, keep warm at 1000°C for 2 hours, after leaving the furnace and air-cool, hold at 300°C for 2 hours, and cool in the furnace. The first porous ceramic plate 1 and the second porous ceramic plate 2;

[0054] S4, after polishing the first porous cera...

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Abstract

The invention belongs to the technical field of a wear-resistant material, in particular to a high-wear-resistant lining plate and a preparation method thereof. The high-wear-resistant lining plate comprises a porous ceramic substrate and metallic substrates filled in pore spaces of the porous ceramic substrate, wherein the porous ceramic substrate is composed of a first porous ceramic plate and asecond porous ceramic plate arranged on the first porous ceramic plate. A plurality of regular polygonal first pouring through holes are formed in the first porous ceramic plate, and a plurality of regular polygonal second pouring through holes are formed in the second porous ceramic plate. The second pouring through holes partially shield each first pouring through hole. The high-wear-resistantlining plate organically combines the toughness and bending resistance of metal and the high wear resistance, high strength and oxidation resistance of ceramic, and the overall strength, impact toughness and wear resistance are greatly improved.

Description

technical field [0001] The invention belongs to the technical field of wear-resistant materials, in particular to a high-wear-resistant liner and a preparation method thereof. Background technique [0002] Wear-resistant materials are widely used in thermal power, steel, smelting, machinery, coal, mining, chemical industry, cement, port terminals and other enterprises such as coal transportation, material transportation system, pulverization system, ash discharge, dust removal system and other mechanical equipment with large wear For example, it is used in the hopper system of material (iron ore, coal, etc.) loading and unloading machinery, and the specific parts are easy to wear parts such as material guide plate, blanking recovery plate, and bucket wheel return arc wear plate. When the wear-resistant material is sintered, the metal and ceramic particles cannot be fully mixed, resulting in uneven distribution of the metal phase and ceramic phase of the wear-resistant materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16S1/10B22D19/02
CPCB22D19/02F16S1/10
Inventor 张轶
Owner 湖北秦鸿新材料有限公司
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