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Novel ceramic bearing composite material

A technology for ceramic bearings and composite materials, applied in the field of ceramic materials, can solve the problems of increasing sintering steps, low flexural strength, and high processing, and achieve the effects of improving mechanical properties, increasing toughness, and high wear resistance.

Inactive Publication Date: 2020-11-17
新化县正能精细陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bending strength of the ceramic alloy material is small, the toughness is poor, and it is easy to be brittle; and the material is sintered by a two-stage sintering process, which increases the sintering step, that is, the processing is relatively high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: Novel Ceramic Bearing Composite Material

[0032] A new ceramic bearing composite material, which is composed of the following raw materials in parts by weight: 45 parts of silicon nitride, 20 parts of carbon graphite powder, 10 parts of zirconia, 10 parts of aluminum oxide, 5 parts of cerium oxide, 3.5 parts of yttrium oxide, titanium 5 parts of powder, 1.2 parts of binder and 0.3 parts of defoamer.

[0033] The above-mentioned binder is composed of the following components by weight: 70 parts of alkoxy-terminated polyether, 15 parts of polyvinyl alcohol, 10 parts of carboxymethyl cellulose and 5 parts of toluene diisocyanate, and its preparation method specifically includes the following steps : After mixing the above-mentioned binder components in parts by weight uniformly, under vacuum conditions, using an inert gas as a protective gas, stirring and reacting at a temperature of 110-120° C. for 2-3 hours to obtain the binder.

[0034] The preparation meth...

Embodiment 2

[0044] Example 2: Novel Ceramic Bearing Composite Material

[0045] A new ceramic bearing composite material, which is composed of the following raw materials in parts by weight: 65 parts of silicon nitride, 10 parts of carbon graphite powder, 10 parts of zirconia, 5 parts of aluminum oxide, 3 parts of cerium oxide, 3 parts of yttrium oxide, titanium 3 parts of powder, 0.8 part of binder and 0.2 part of defoamer.

[0046] The above binder is composed of the following components by weight: 80 parts of alkoxy-terminated polyether, 10 parts of polyvinyl alcohol, 8 parts of carboxymethyl cellulose and 2 parts of toluene diisocyanate. The preparation method specifically includes the following steps : After mixing the above-mentioned binder components in parts by weight uniformly, under vacuum conditions, using an inert gas as a protective gas, stirring and reacting at a temperature of 110-120° C. for 2-3 hours to obtain the binder.

[0047] The preparation method of the above-ment...

Embodiment 3

[0057] Example 3: Novel Ceramic Bearing Composite Material

[0058] A new ceramic bearing composite material, which is composed of the following raw materials in parts by weight: 55 parts of silicon nitride, 14 parts of carbon graphite powder, 11.5 parts of zirconia, 6 parts of aluminum oxide, 4 parts of cerium oxide, 4 parts of yttrium oxide, titanium 4 parts of powder, 1 part of binder and 0.5 part of defoamer.

[0059] The above binder is composed of the following components by weight: 78 parts of alkoxy-terminated polyether, 13 parts of polyvinyl alcohol, 5 parts of carboxymethyl cellulose and 4 parts of toluene diisocyanate. The preparation method specifically includes the following steps : After mixing the above-mentioned binder components in parts by weight uniformly, under vacuum conditions, using an inert gas as a protective gas, stirring and reacting at a temperature of 110-120° C. for 2-3 hours to obtain the binder.

[0060] The preparation method of the above-ment...

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PUM

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Abstract

The invention discloses a novel ceramic bearing composite material, and relates to the technical field of ceramic materials. The novel ceramic bearing composite material is prepared from the followingraw materials in parts by weight: 45-65 parts of silicon nitride, 10-20 parts of carbon graphite powder, 10-15 parts of zirconium oxide, 5-10 parts of aluminum oxide, 3-5 parts of cerium oxide, 3-5 parts of yttrium oxide, 3-5 parts of titanium powder, 0.8-1.2 parts of a binder and 0.2-0.5 part of a defoaming agent. In addition, the invention also provides a preparation method of the novel ceramicbearing composite material. The novel ceramic bearing composite material has excellent wear resistance, high strength and high toughness, so that a bearing works under a high-temperature condition, is not easy to deform, wear and break, the service lifetime of the bearing is prolonged, the sintering temperature is relatively low, the preparation process is simple, and the processing cost is relatively low.

Description

technical field [0001] The invention belongs to the technical field of ceramic materials, in particular to a novel ceramic bearing composite material. Background technique [0002] Bearings are components that fix and reduce the friction coefficient of loads during mechanical transmission. It can also be said that when other parts move relative to each other on the shaft, it is used to reduce the friction coefficient in the process of power transmission and keep the center of the shaft fixed. Its main function is to support the mechanical rotating body to reduce the friction coefficient of the mechanical load during the transmission process of the equipment. As a very heavy mechanical basic component in contemporary mechanical equipment, bearings are widely used in various fields of science and technology and economy. [0003] Existing bearings can be divided into steel bearings and ceramic bearings, and ceramic bearings are further divided into hybrid ceramic bearings and...

Claims

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Application Information

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IPC IPC(8): C04B35/593C04B35/622
CPCC04B35/5935C04B35/622C04B2235/425C04B2235/422C04B2235/3244C04B2235/3217C04B2235/3229C04B2235/3225C04B2235/404C04B2235/602C04B2235/656C04B2235/6567C04B2235/6562C04B2235/658C04B2235/6565C04B2235/48C04B2235/96
Inventor 何震
Owner 新化县正能精细陶瓷有限公司
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