Silicon nitride bearing retainer material

A bearing cage, silicon nitride technology, applied in the direction of bearings, bearing components, shafts and bearings, etc., can solve the problem of less research on cages, and achieve the effect of avoiding density defects, improving product density, and reducing friction coefficient

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

[0014] A silicon nitride bearing retainer material, comprising the following raw materials in parts by weight: 40 parts of silicon nitride, 13 parts of titanium nitride, 16 parts of copper, 15 parts of aluminum, 6 parts of cobalt, 6 parts of nickel, 5 parts of molybdenum Parts, 12 parts of crosslinking agent, 19 parts of surfactant, 20 parts of dispersant.

[0015] 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.

[0016] 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 significantly different, so they can...

Embodiment 2

[0025] The difference between this embodiment and Example 1 is that it is made of the following raw materials in parts by weight: 45 parts of silicon nitride, 14 parts of titanium nitride, 17 parts of copper, 16 parts of aluminum, 8 parts of cobalt, and 8 parts of nickel , 6 parts of molybdenum, 14 parts of crosslinking agent, 20 parts of surfactant, and 21 parts of dispersant.

[0026] The obtained zirconia ceramic product porcelain has a relative density of 99.3%, a fracture toughness of 9.3MPa·m1 / 2, and a Vickers hardness of 23.5GPa.

Embodiment 3

[0028] The difference between this embodiment and Examples 1 and 2 is that it comprises the following raw materials in parts by weight: 50 parts of silicon nitride, 15 parts of titanium nitride, 18 parts of copper, 17 parts of aluminum, 10 parts of cobalt, nickel 10 parts, molybdenum 7 parts, crosslinking agent 17 parts, surfactant 22 parts, dispersant 23 parts.

[0029] The obtained zirconia ceramic product porcelain has a relative density of 99.1%, a fracture toughness of 9.2MPa·m1 / 2, and a Vickers hardness of 23GPa.

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Abstract

The invention discloses a silicon nitride bearing retainer material. The material is prepared by the following raw materials, by weight: silicon nitride, titanium nitride, copper, aluminum, cobalt, nickel, molybdenum, a crosslinking agent, a surfactant, and a dispersing agent. The silicon nitride 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): F16C33/44
CPCF16C33/44F16C2206/58F16C2206/60
Inventor 宋文选陈尧周蓓蓓
Owner NANJING HAIYIN COMM EQUIP CO LTD
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