High-toughness wear-resistant composite material and preparation method thereof

A composite material and high-toughness technology, applied in the field of wear-resistant materials processing, can solve the problems of SiC ceramic wear-resistant particles that are easily broken, and achieve the effects of reducing occupational diseases, reducing pollution, and ensuring safety

Inactive Publication Date: 2022-08-02
江苏尊释智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a high-toughness wear-resistant composite material and its preparation method, which solves the problem of crushing of ores and pebbles under the working conditions of medium-strength impact crushing under normal circumstances. SiC ceramic wear-resistant particles protruding from the working surface are easily broken under the strong impact of

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A high-toughness wear-resistant composite material and a preparation method thereof:

[0028] High toughness wear-resistant composite material is composed of MXene powder 5-10%, SiC particle (312μm) 65-80%, SiC particle (200μm) 10-15%, SiC particle (50μm) 5-9%, silicon powder 1-3% %, carbon black 1-3%, graphite 1-3%, sintering aid 0.5-1.0%, dextrin powder 3-5%.

[0029] Specific steps are as follows:

[0030] Preparation of S1 and MXene:

[0031] Weigh 2g of fluoride salts and dissolve them in 30mL of 12mol / L concentrated hydrochloric acid (HCl) respectively, and ultrasonicate for 15min to completely dissolve the fluoride salts.

[0032] Among them, the fluorine salt is NaF or LiF.

[0033] Then the mass of 2g Ti 3 AlC 2 The samples were added to the fluoride salt solution respectively, and the temperature was set to 35°C, and stirred for 72h with a collector-type constant temperature magnetic stirrer.

[0034] Then, the obtained solution was washed successively w...

Embodiment 2

[0040] A high-toughness wear-resistant composite material and a preparation method thereof:

[0041] High toughness wear-resistant composite material is composed of MXene powder 5-10%, SiC particle (312μm) 65-80%, SiC particle (200μm) 10-15%, SiC particle (50μm) 5-9%, silicon powder 1-3% %, carbon black 1-3%, graphite 1-3%, sintering aid 0.5-1.0%, dextrin powder 3-5%.

[0042] Specific steps are as follows:

[0043] Preparation of S1 and MXene:

[0044] Weigh 2g of fluoride salts and dissolve them in 30mL of 12mol / L concentrated hydrochloric acid (HCl) respectively, and ultrasonicate for 15min to completely dissolve the fluoride salts.

[0045] Among them, the fluorine salt is NaF or LiF.

[0046] Then the mass of 2g Ti 3 AlC 2 The samples were added to the fluoride salt solution respectively, and the temperature was set to 35°C, and stirred for 72h with a collector-type constant temperature magnetic stirrer.

[0047] Then, the obtained solution was washed successively w...

Embodiment 3

[0053] A high-toughness wear-resistant composite material and a preparation method thereof:

[0054] High toughness wear-resistant composite material is composed of MXene powder 5-10%, SiC particle (312μm) 65-80%, SiC particle (200μm) 10-15%, SiC particle (50μm) 5-9%, silicon powder 1-3% %, carbon black 1-3%, graphite 1-3%, sintering aid 0.5-1.0%, dextrin powder 3-5%.

[0055] Specific steps are as follows:

[0056] Preparation of S1 and MXene:

[0057] Weigh 2g of fluoride salts and dissolve them in 30mL of 12mol / L concentrated hydrochloric acid (HCl) respectively, and ultrasonicate for 15min to completely dissolve the fluoride salts.

[0058] Among them, the fluorine salt is NaF or LiF.

[0059] Then the mass of 2g Ti 3 AlC 2 The samples were added to the fluoride salt solution respectively, and the temperature was set to 35 °C and stirred for 72 h with a collector-type constant temperature magnetic stirrer.

[0060] Then the obtained solution was washed with deionized...

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Abstract

The invention relates to the technical field of wear-resistant material processing, and discloses a high-toughness wear-resistant composite material and a preparation method thereof.The high-toughness wear-resistant composite material comprises 5-10% of MXene powder, 65-80% of SiC particles (312 microns), 10-15% of SiC particles (200 microns), 5-9% of SiC particles (50 microns), 1-3% of silicon powder, 1-3% of carbon black, 1-3% of graphite, 0.5-1.0% of a sintering aid and 3-5% of dextrin powder.The preparation method is characterized by comprising the steps that S1, MXene is prepared, specifically, 2 g of villiaumite is weighed and dissolved in 30 mL of 12 mol/L concentrated hydrochloric acid (HCl); according to the high-toughness wear-resistant composite material and the preparation method thereof, by introducing nitrogen, on one hand, MXene is prevented from being oxidized, on the other hand, TiN is generated, the hardness characteristic of the wear-resistant material is improved, the TiN material has the advantages of being high in strength, high in hardness, resistant to acid and alkali etching, resistant to wear and the like, the hardness of the TiN material is close to that of diamond, and the wear resistance of the TiN material is improved. The titanium nitride material film coated on the surface of the high-speed steel cutting tool can reduce the wear of the tool, improve the cutting speed and prolong the service life of the tool.

Description

technical field [0001] The invention relates to the technical field of wear-resistant material processing, in particular to a high-toughness wear-resistant composite material and a preparation method thereof. Background technique [0002] SiC wear-resistant material is an ideal wear-resistant material with strong applicability because its hardness is higher than that of TiC and Al203 materials, and at the same time, its price is relatively low. Wear-resistant materials are the key to new material research, and play an important role in promoting and supporting the development and progress of high-tech. At the same time, it is also the focus and hot spot of research and development in the field of new materials around the world. [0003] However, the brittleness of pure SiC ceramic wear-resistant materials is relatively large. In general, under the working conditions of medium and strong impact crushing, such as the crushing of ore and pebbles, under the strong impact of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/565C04B35/622C04B35/64
CPCC04B35/565C04B35/622C04B35/64C04B2235/5436C04B2235/428C04B2235/424C04B2235/425C04B2235/96C04B2235/3886
Inventor 苗保记于璐张永辉
Owner 江苏尊释智能科技有限公司
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