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Composite wear-resistant material and preparation method thereof

A technology of wear-resistant materials and raw materials, applied in the field of materials, can solve the problems of uneven structure, uncontrollable pores and shrinkage defects, poor consistency of material strength, etc., and achieve uniform structure, excellent heat dissipation effect, and low cost Effect

Active Publication Date: 2018-02-09
NANYANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composite wear-resistant material prepared by the present invention has better flexural strength and wear resistance, but the casting method will produce uncontrollable pores and shrinkage defects, resulting in uneven structure and poor consistency of material strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A composite wear-resistant material, prepared from the following raw materials in parts by weight: 60 parts of cast stone powder, 10 parts of flaky corundum, 8 parts of silicon carbide, 12 parts of quartz sand, 3 parts of titanium carbide, 20 parts of fly ash floating beads, The wetting and dispersing agent is 3 parts of sodium hexametaphosphate, 9 parts of carboxymethyl cellulose, and the toughening agent is 12 parts of 20mm polyester staple fiber.

[0027] Composite wear-resistant materials are prepared by the following steps:

[0028] (1) Put cast stone powder, flaky corundum, silicon carbide, quartz sand, titanium carbide, fly ash floating beads, and wetting and dispersing agent into the grinder and grind for 4 hours, and the average particle size of mixture A is 40um;

[0029] (2) Add 2 times dilute hydrochloric acid with a weight concentration of 10% to mixture A, heat and boil for 0.5h, rinse with distilled water until neutral, and the dried mixture is B;

[003...

Embodiment 2

[0033] A composite wear-resistant material, prepared from the following raw materials in parts by weight: 55 parts of cast stone powder, 11 parts of flaky corundum, 9 parts of silicon carbide, 11 parts of quartz sand, 4 parts of titanium carbide, 19 parts of fly ash floating beads, The wetting and dispersing agent is 3 parts of sodium alkylbenzene sulfonate, 10 parts of carboxymethyl cellulose, and 5 parts of toughening agent SiC whisker.

[0034] Composite wear-resistant materials are prepared by the following steps:

[0035] (1) Put cast stone powder, flaky corundum, silicon carbide, quartz sand, titanium carbide, fly ash floating beads, and wetting and dispersing agent into a grinder and grind for 3 hours to obtain a mixture A with an average particle size of 60um;

[0036] (2) Add 2 times dilute hydrochloric acid with a weight concentration of 15% to mixture A, heat and boil for 0.6h, rinse with distilled water until neutral, and the dried mixture is B;

[0037] (3) Add t...

Embodiment 3

[0040] A composite wear-resistant material, prepared from the following raw materials in parts by weight: 50 parts of cast stone powder, 12 parts of flaky corundum, 10 parts of silicon carbide, 10 parts of quartz sand, 5 parts of titanium carbide, 18 parts of fly ash floating beads, The wetting and dispersing agent is 3 parts of polyethylene glycol, 11 parts of carboxymethyl cellulose, and 9 parts of 30mm polyester staple fiber as the toughening agent.

[0041] Composite wear-resistant materials are prepared by the following steps:

[0042] (1) Put cast stone powder, flaky corundum, silicon carbide, quartz sand, titanium carbide, fly ash floating beads, and wetting and dispersing agent into the grinder and grind for 2 hours, and the average particle size of mixture A is 80um;

[0043](2) Add 2 times dilute hydrochloric acid with a weight concentration of 20% to mixture A, heat and boil for 0.7h, rinse with distilled water until neutral, and the dried mixture is B;

[0044] (3...

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Abstract

The invention discloses a composite wear-resistant material and a preparation method thereof. The composite wear-resistant material is prepared from the following raw materials in parts by weight: 40to 60 parts of glass-ceramic powder, 10 to 15 parts of tabular corundum, 8 to 12 parts of silicon carbide, 5 to 12 parts of quartz sand, 3 to 8 parts of titanium carbide, 15 to 20 parts of fly ash floating beads, 9 to 12 parts of carboxymethylcellulose, 1 to 3 parts of ricinate and 5 to 12 parts of flexibilizer. The preparation method comprises the following steps: adding a wetting dispersant intoinorganic materials for grinding and carrying out diluted hydrochloric acid activating treatment; then uniformly stirring a mixture with the carboxymethylcellulose and the flexibilizer, carrying outcompression-moulding and hot pressed sintering; finally, obtaining the composite wear-resistant material which has the advantages of low cost, controllable and uniform micropores, uniform tissues, high strength and hardness and good wear resistance.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a composite wear-resistant material and a preparation method thereof. Background technique [0002] In mining, electric power, electronics, construction, machining and other fields, materials with high hardness, strength, wear resistance and corrosion resistance are usually required. Ceramic materials have advantages such as high specific strength, high temperature resistance, wear resistance and corrosion resistance. Performance, but high brittleness, which limits its scope of use. Composite wear-resistant materials are a new class of materials composed of ceramic materials as the matrix and high-strength, high-elastic fibers as auxiliary materials. They have good impact resistance, high strength, high toughness, and excellent chemical stability. Suitable for use on mechanical parts that are often worn. [0003] The multi-functional wear-resistant material provided by Chines...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/132C04B33/135C04B33/16C04B33/13
CPCC04B33/1305C04B33/131C04B33/132C04B33/1352C04B33/16C04B2235/3826C04B2235/3843C04B2235/447C04B2235/5244C04B2235/5248C04B2235/96Y02P40/60
Inventor 宋伟衡艳丽徐雪丽杨艳菊高伟霞
Owner NANYANG INST OF TECH
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