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Abrasion resistant material featuring ceramic embedded in metal and preparation method thereof

A wear-resistant material and ceramic technology, applied in metal processing equipment, metal processing, manufacturing tools, etc., can solve the problems of short life, easy falling off of wear-resistant ceramic blocks, and alternating impact loads, and achieve improved reliability. Effect

Inactive Publication Date: 2012-05-23
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problems that metal and ceramics are only connected by adhesive in the existing metal-ceramic composite material, the adhesive is aging, the service life is short, and the wear-resistant ceramic blocks are easy to fall off under the action of alternating impact load, etc., and provide a A wear-resistant material inlaid with ceramics in a metal, the present invention proposes a wear-resistant ceramic block designed with a specific structure, which is bonded with an adhesive or a thermal assembly method to obtain a composite material inlaid with a wear-resistant ceramic block in a metal, avoiding ceramics It falls off from the metal substrate to improve reliability and meet the requirements of enterprises for high wear resistance, low cost and impact resistance materials

Method used

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  • Abrasion resistant material featuring ceramic embedded in metal and preparation method thereof
  • Abrasion resistant material featuring ceramic embedded in metal and preparation method thereof
  • Abrasion resistant material featuring ceramic embedded in metal and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Adhesive method to prepare wear-resistant materials embedded with ceramics in metal:

[0035] 1) First prepare the adhesive according to the composition of the following parts by weight: 100 parts of epoxy resin, 20 parts of dibutyl phthalate, 100 parts of alumina powder (300 mesh), 8 parts of ethylenediamine (epoxy resin The preferred grade is E-51 or E-44);

[0036] 2) Apply the adhesive evenly on the surface of the wear-resistant ceramic block, the thickness of the coating is 1.8-2.5mm, and then install the wear-resistant ceramic block in the through hole of the substrate, and make the gap between the through hole and the wear-resistant ceramic block Evenly, after the adhesive is cured, the excess adhesive at the gap between the upper and lower surfaces shall be polished clean (the wear-resistant ceramic block is an alumina ceramic block produced by the existing technology, and the wear-resistant ceramic block is a combination of coaxial cylinders. The diameter of t...

Embodiment 2

[0039] Adhesive method to prepare wear-resistant materials embedded with ceramics in metal:

[0040] 1) First prepare the adhesive according to the following parts by weight: 100 parts of epoxy resin, 20 parts of dibutyl phthalate, 80 parts of alumina powder (300 mesh), 20 parts of silicon powder (300 mesh), 8 parts of diethylenetriamine (the preferred grade of epoxy resin is E-51 or E-44);

[0041] 2) Apply the adhesive evenly in the through hole of the substrate, the thickness of the coating is 1.5-2.0mm, and then install the wear-resistant ceramic block in the through hole of the substrate, and make the gap between the through hole and the wear-resistant ceramic block Evenly, after the adhesive is cured, the excess adhesive at the gap between the upper and lower surfaces shall be polished clean (the wear-resistant ceramic block is an alumina ceramic block produced by the existing technology, and the wear-resistant ceramic block is a combination of coaxial cylinders. The di...

Embodiment 3

[0044] Preparation of wear-resistant materials inlaid with ceramics in metals by hot charging:

[0045] 1) Heat the substrate with through holes to 120°C in the furnace. After the diameter of the through hole on the substrate becomes larger due to expansion, immediately install the wear-resistant ceramic block into the through hole. After cooling, the through hole shrinks, and the wear-resistant The ceramic block is firmly fixed in the through hole (the wear-resistant ceramic block is an alumina ceramic block produced by the prior art, the wear-resistant ceramic block is a combination of coaxial cylinders, the diameter of the working section is 8mm, the height is 8mm, The diameter of the positioning section is 10mm and the height is 3mm; 8mm thick low-carbon steel is selected as the substrate 1, the length and width of the substrate 1 are 166mm and 86mm respectively, and 10×5 through holes with a diameter of 7.9mm are opened on the substrate 1 , the through holes are evenly di...

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Abstract

The invention discloses an abrasion resistant material featuring ceramic embedded in metal and a preparation method thereof. The abrasion resistant material comprises an abrasion resistant ceramic block, a base plate and a substrate with a through hole; the abrasion resistant ceramic block is embedded in the through hole of the substrate, the substrate is mounted on the base plate, the abrasion resistant ceramic block comprises a working section and a positioning section with identical cross section shape and the cross section area of the positioning section is larger than that of the workingsection, the abrasion resistant ceramic block is connected with the substrate by the positioning section, the through hole of the substrate is matched with the working section and the positioning section of the abrasion resistant ceramic block, or the through hole of the substrate is only matched with the working section of the abrasion resistant ceramic block. The material adopts the abrasion resistant ceramic block designed with a variable cross section structure, overcomes the defect of easy peeling off as the original metal ceramic abrasion composite material is only fixed by adhesive; atthe same time, the abrasion resistant ceramic block is embedded in the metal through hole by the hot mounting method, thus overcoming easy ageing of the adhesive and easy peeling off of the abrasion resistant ceramic block caused by using adhesive.

Description

technical field [0001] The invention relates to a composite wear-resistant material inlaid with ceramics on a metal substrate and a preparation method thereof, belonging to the technical field of composite materials. Background technique [0002] In metallurgy, electric power, building materials, machinery, chemical industry and other industries, high manganese steel and wear-resistant alloys are mostly used to make wear-resistant linings. Although the liners made of metal materials have good strength and toughness, such liners are heavy in weight, low in hardness, poor in wear resistance, and short in life. Frequent replacement of liners not only reduces the utilization rate of equipment, but also increases costs and Labor intensity of workers. The development of new wear-resistant materials to improve the wear resistance of components is a common concern in the industrial field. [0003] At present, casting or surfacing welding technology is commonly used in the manufact...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16S1/00F16B11/00F16B4/00C09J163/00B23P19/00
Inventor 孙俊生孙逸群
Owner SHANDONG UNIV
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