Silicon carbide bearing retainer material

A bearing retainer, silicon carbide technology, applied in the direction of bearings, bearing components, shafts and bearings, etc., can solve the problems of less research on the retainer, to avoid density defects, good shape and toughness, increase wear resistance and The effect of hardness

Inactive Publication Date: 2019-01-29
NANJING HAIYIN COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to make the service life of the bearing long, the hardness of the retainer is generally required to be lower than that of the rolling elements, and in order to improve the wear resistance of the bearing, research is generally done on ceramic balls to reduce their friction coefficient and improve their wear resistance, while Less research has been done on the closely related retainer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A silicon carbide bearing retainer material, comprising the following raw materials in parts by weight: 30 parts of silicon carbide, 20 parts of tungsten carbide, 12 parts of copper, 10 parts of aluminum, 5 parts of cobalt, 8 parts of nickel, 3 parts of molybdenum, graphite 5 parts, 5 parts silicon nitride, 13 parts crosslinking agent, 20 parts surfactant, 21 parts dispersant.

[0016] The cross-linking agent is to bring the components together, so it has little effect on the performance of the product itself, so the cross-linking agent can be N,N'-methylenebisacrylamide, diethylenetriamine, diisocyanate or One or more of divinylbenzene.

[0017] Surfactant is in order to improve each component surface activity, and described surfactant is glyceryl monostearate, sorbitan sesquioleate, propylene glycol fatty acid ester or dioctyl sodium succinate sulfonate One or several kinds of surfactants are used, and the performance and effect of the product itself are not signific...

Embodiment 2

[0022] The difference between this embodiment and Example 1 is that it comprises the following raw materials in parts by weight: 35 parts of silicon carbide, 25 parts of tungsten carbide, 13 parts of copper, 11 parts of aluminum, 6 parts of cobalt, 9 parts of nickel, molybdenum 4 parts, graphite 6 parts, silicon nitride 6 parts, crosslinking agent 14 parts, surfactant 21 parts, dispersant 22 parts.

[0023] The obtained zirconia ceramic product porcelain has a relative density of 99.2%, a fracture toughness of 9.4MPa·m1 / 2, and a Vickers hardness of 20.5GPa.

Embodiment 3

[0025] The difference between this embodiment and Examples 1 and 2 is that it comprises the following raw materials in parts by weight: 40 parts of silicon carbide, 30 parts of tungsten carbide, 14 parts of copper, 12 parts of aluminum, 7 parts of cobalt, and 10 parts of nickel , 5 parts of molybdenum, 7 parts of graphite, 7 parts of silicon nitride, 15 parts of crosslinking agent, 23 parts of surfactant, and 24 parts of dispersant.

[0026] The obtained zirconia ceramic product porcelain has a relative density of 99.2%, a fracture toughness of 9.1MPa·m1 / 2, and a Vickers hardness of 19GPa.

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Abstract

The invention discloses a silicon carbide bearing retainer material. The material is prepared by the following raw materials, by weight: silicon carbide, tungsten carbide, copper, aluminum, cobalt, nickel, molybdenum, graphite, silicon nitride, a crosslinking agent, a surfactant, and a dispersant. The silicon carbide bearing retainer material of the invention has the characteristics of self-lubrication, high wear resistance and high hardness.

Description

technical field [0001] The invention relates to a production technology of a zirconia bearing retainer, which belongs to the technical field of bearings. Background technique [0002] Ceramic bearings include all-ceramic bearings and ceramic ball hybrid bearings. All-ceramic bearings mean that the rings (including cages) and rolling elements are made of ceramic materials. Ceramic ball hybrid bearings mean that the rings are made of bearing steel and only the rolling elements are made of ceramic materials. . Because ceramic balls have excellent characteristics such as high hardness, high wear resistance, low friction, low density, and corrosion resistance, they have obvious advantages in ensuring long life and high reliability of bearings. In order to make the service life of the bearing long, the hardness of the retainer is generally required to be lower than that of the rolling elements, and in order to improve the wear resistance of the bearing, research is generally carr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/02F16C33/44F16C33/56
CPCC22C29/02F16C33/44F16C33/56F16C2202/04F16C2202/50F16C2206/80
Inventor 宋文选陈尧周蓓蓓
Owner NANJING HAIYIN COMM EQUIP CO LTD
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