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Nanometer silicon nitride bearing material for machinery and preparation method thereof

A nano-silicon nitride and bearing material technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of insufficient service life, poor load-carrying capacity, low elastic modulus, etc., so as to prolong the service life and improve the mechanical strength , reduce the effect of shrinkage

Inactive Publication Date: 2016-06-15
桐乡市搏腾贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the sliding bearings used in China are mainly Canadian Sailong bearings, and some bearings mainly made of rubber materials. Imported products have the problem of high prices, while rubber-based bearings have low elastic modulus and poor carrying capacity. Poor, difficult to process, long service life and other shortcomings

Method used

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  • Nanometer silicon nitride bearing material for machinery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In the embodiment of the present invention, a nano-silicon nitride bearing material for machinery is made of the following raw materials in parts by weight: 14 parts of nano-silicon nitride, 62 parts of zirconia, 9 parts of silicon, 2 parts of nickel, magnesium 3 parts, germanium 1.8 parts, polytetrafluoroethylene powder 5 parts, polyvinyl alcohol 3.4 parts, bamboo charcoal powder 0.4 parts, oleic acid 5 parts, calcium stearate 0.8 parts, alumina 7 parts, bentonite 1.5 parts, triphenyl phosphate 2.5 parts of ester.

[0022] The preparation method of the nano-silicon nitride bearing material for machinery comprises the following steps:

[0023] (1) Pour nano-silicon nitride, zirconia, silicon, nickel, magnesium, germanium and aluminum oxide into a mortar, grind and mix evenly, then add the mixed powder to a ball mill for wet ball milling for 16 hours, and the ball milling medium is Zirconium balls, the solvent is absolute ethanol, mixed powder: absolute ethanol: zirconi...

Embodiment 2

[0030] In the embodiment of the present invention, a nano-silicon nitride bearing material for machinery is made of the following raw materials in parts by weight: 18 parts of nano-silicon nitride, 58 parts of zirconia, 13 parts of silicon, 1 part of nickel, magnesium 4 parts, germanium 1.2 parts, polytetrafluoroethylene powder 7 parts, polyvinyl alcohol 2.8 parts, bamboo charcoal powder 0.8 parts, oleic acid 3 parts, calcium stearate 1.2 parts, aluminum oxide 5 parts, bentonite 2.5 parts, triphenyl phosphate 1.5 parts of ester.

[0031] The preparation method of the nano-silicon nitride bearing material for machinery is the same as that in Example 1.

Embodiment 3

[0033] In the embodiment of the present invention, a nano-silicon nitride bearing material for machinery is made of the following raw materials in parts by weight: 15 parts of nano-silicon nitride, 62 parts of zirconia, 9 parts of silicon, 1.6 parts of nickel, magnesium 3.4 parts, germanium 1.6 parts, polytetrafluoroethylene powder 5.5 parts, polyvinyl alcohol 3.2 parts, bamboo charcoal powder 0.5 parts, oleic acid 4.2 parts, calcium stearate 0.9 parts, alumina 6.2 parts, bentonite 2.0 parts, triphenyl phosphate 2.2 parts of ester.

[0034] The preparation method of the nano-silicon nitride bearing material for machinery comprises the following steps:

[0035] (1) Pour nano-silicon nitride, zirconia, silicon, nickel, magnesium, germanium and aluminum oxide into a mortar, grind and mix evenly, then add the mixed powder to a ball mill for wet ball milling for 24 hours, and the ball milling medium is Zirconium balls, solvent is absolute ethanol, mixed powder: absolute ethanol: z...

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Abstract

The invention discloses a nanometer silicon nitride bearing material for machinery and a preparation method thereof. The material is prepared by the following raw materials in parts by weight: 14-18 parts of nanometer silicon nitride, 58-62 parts of zirconium oxide, 9-13 parts of silicon, 1-2 parts of nickel, 3-4 parts of magnesium, 1.2-1.8 parts of germanium, 5-7 parts of polytetrafluoroethylene powder, 2.8-3.4 parts of polyvinyl alcohol, 0.4-0.8 part of bamboo charcoal powder, 3-5 parts of oleic acid, 0.8-1.2 parts of calcium stearate, 5-7 parts of aluminum oxide, 1.5-2.5 parts of bentonite, and 1.5-2.5 parts of triphenyl phosphate. The pretreatment, the hydraulic molding and the vacuum sintering are performed for the raw materials to obtain a blank; the surface grinding and the deburring treatment are performed; and then, the oil leaching is performed to obtain the material. The prepared bearing material is excellent in wear resistance and mechanical strength, prolongs the service life, and can be widely applied to such heavy mechanical equipment as energy, chemical engineering and ferrous metallurgy.

Description

technical field [0001] The invention relates to the technical field of mechanical materials, in particular to a nanometer silicon nitride bearing material for machinery and a preparation method thereof. Background technique [0002] The function of the bearing is to support the shaft and the parts on the shaft, maintain the rotation accuracy of the shaft, reduce the friction and wear between the shaft and the support, and bear the load. Bearings can generally be divided into sliding friction bearings and rolling friction bearings, which are referred to as sliding bearings and rolling bearings respectively. The properties required for bearing materials include: high contact fatigue strength, good wear resistance, high elastic limit, suitable hardness, certain toughness, good dimensional stability, good rust resistance, good Process performance. [0003] At present, the sliding bearings used in China are mainly Canadian Sailong bearings, and some bearings mainly made of rubb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F1/00B22F3/04B22F3/10
CPCB22F1/0003B22F3/04B22F3/1007B22F2201/20B22F2998/10B22F2999/00B22F1/10
Inventor 陈瑾玮
Owner 桐乡市搏腾贸易有限公司
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