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High-strength and wear-resisting boride-based cermet bearing and production method thereof

A ceramic bearing and boride technology are applied in the field of high-strength wear-resistant boride-based metal ceramic bearings and their preparation, which can solve problems such as low market share, and achieve the effects of not easy to wear, simple preparation process and low processing cost.

Inactive Publication Date: 2016-11-09
王莹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-strength wear-resistant boride-based cermet bearings are rare in the domestic market, and those sold in a small amount and with a good reputation are basically imported products, and the market share of domestic products is even less

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A high-strength wear-resistant boride-based cermet bearing is made of the following raw materials in parts by weight: the high-strength wear-resistant boride-based cermet bearing is made of the following raw materials in parts by weight: 10 parts of titanium boride, tantalum boride 40 parts, 2 parts of tin powder, 4 parts of iron powder, 13 parts of realgar powder, 10 parts of dickite powder, 10 parts of wolframite powder, 3 parts of graphene, 2 parts of iron citrate, 10 parts of glass fiber, 11 parts of paraffin wax .

[0015] The steps of the preparation method are as follows: first put all raw materials into a high-speed mixer, mix and stir them, then place the uniformly mixed mixture in a mold and press it into a preform, the pressing pressure is 40-50MPa, and then the preform High temperature sintering, the sintering temperature is 900-1200°C, the sintering time is 3-6h, and the temperature can be lowered to room temperature.

Embodiment 2

[0017] A high-strength wear-resistant boride-based cermet bearing is made of the following raw materials in parts by weight: the high-strength wear-resistant boride-based cermet bearing is made of the following raw materials in parts by weight: 20 parts of titanium boride, tantalum boride 50 parts, 8 parts of tin powder, 9 parts of iron powder, 20 parts of realgar powder, 20 parts of dickite powder, 15 parts of wolframite powder, 8 parts of graphene, 6 parts of iron citrate, 15 parts of glass fiber, 15 parts of paraffin wax .

[0018] The steps of the preparation method are as follows: first put all raw materials into a high-speed mixer, mix and stir them, then place the uniformly mixed mixture in a mold and press it into a preform, the pressing pressure is 40-50MPa, and then the preform High temperature sintering, the sintering temperature is 900-1200°C, the sintering time is 3-6h, and the temperature can be lowered to room temperature.

Embodiment 3

[0020] A high-strength wear-resistant boride-based cermet bearing is made of the following raw materials in parts by weight: the high-strength wear-resistant boride-based cermet bearing is made of the following raw materials in parts by weight: 15 parts of titanium boride, tantalum boride 45 parts, tin powder 5 parts, iron powder 6 parts, realgar powder 17 parts, dickite powder 15 parts, wolframite powder 13 parts, graphene 6 parts, iron citrate 4 parts, glass fiber 13 parts, paraffin wax 13 parts .

[0021] The steps of the preparation method are as follows: first put all raw materials into a high-speed mixer, mix and stir them, then place the uniformly mixed mixture in a mold and press it into a preform, the pressing pressure is 40-50MPa, and then the preform High temperature sintering, the sintering temperature is 900-1200°C, the sintering time is 3-6h, and the temperature can be lowered to room temperature.

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Abstract

The invention discloses a high-strength and wear-resisting boride-based cermet bearing and a production method thereof. The high-strength and wear-resisting boride-based cermet bearing is prepared from the following raw materials in parts by weight: 10 to 20 parts of titanium boride, 40 to 50 parts of tantalum boride, 2 to 8 parts of tin powder, 4 to 9 parts of iron powder, 13 to 20 parts of realgar powder, 10 to 20 parts of dickite powder, 10 to 15 parts of wolframite powder, 3 to 8 parts of graphene, 2 to 6 parts of ferric citrate, 10 to 15 parts of glass fibers and 11 to 15 parts of paraffin. Compared with a traditional cermet bearing, the high-strength and wear-resisting boride-based cermet bearing produced by the production method disclosed by the invention has the advantages of better strength, wear resistance and heat resistance; the bearing does not deform under the condition of high temperature, and is not easy to wear; in addition, a preparation technique is simple, the processing cost is low, parameters are easy to control, and the production process is safe and environmentally-friendly; and the high-strength and wear-resisting boride-based cermet bearing and the production method therefor are suitable for large-scale industrial production.

Description

technical field [0001] The invention specifically relates to a high-strength wear-resistant boride-based cermet bearing and a preparation method thereof. Background technique [0002] Cermet English word cermet or ceramet is composed of ceramic (ceramic) and metal (metal). Cermet refers to the composite material of metal and ceramic prepared by powder metallurgy method. Cermet has the advantages of both metal and ceramic. It has low density, high hardness, wear resistance and good thermal conductivity. Brittle. Cermet not only has the toughness, high thermal conductivity and good thermal stability of metal, but also has the characteristics of high temperature resistance, corrosion resistance and wear resistance of ceramics. Cermets have broad application prospects in aerospace, national defense, precision manufacturing and other fields. Boride-based cermets are based on titanium boride, tantalum boride, vanadium boride, chromium boride, zirconium boride, tungsten boride, ...

Claims

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Application Information

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IPC IPC(8): C22C49/00C22C47/14B22F5/10
CPCC22C49/00B22F5/106C22C47/14
Inventor 王莹
Owner 王莹
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