Nickel-based bearing retainer material and preparation method thereof

A bearing cage, nickel-based technology, applied in the field of materials, to achieve significant social and economic benefits

Active Publication Date: 2010-05-19
LUOYANG BEARING RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there is no cage material that is used under high temperature and high vacuum conditions and has a self-lubricating function

Method used

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  • Nickel-based bearing retainer material and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0012] The composition of the nickel-based bearing cage material by weight percentage is: 67% nickel, 9% chromium, 5% silver, and 19% molybdenum disulfide.

[0013] The preparation method of the bearing cage material, the specific steps are: accurately weigh nickel powder, chromium powder, silver powder and molybdenum disulfide powder according to the weight percentage, put them into a drum type ball mill, the ball-to-material ratio is 2:1, mix 20 hours; after mixing, press and form with a hydraulic press to make a billet with a density of 6g / cm 3 The finished blank is then put into a vacuum carbon tube furnace and vacuum sintered at a sintering temperature of 1030° C. for 1.5 hours to obtain a bearing cage material.

Embodiment 2

[0015] The composition of the nickel-based bearing cage material by weight percentage is: 65% nickel, 5% chromium, 8% silver, and 22% molybdenum disulfide.

[0016] The preparation method of the bearing cage material, the specific steps are: accurately weigh nickel powder, chromium powder, silver powder and molybdenum disulfide powder according to the weight percentage, put them into a drum type ball mill, the ball-to-material ratio is 2:1, mix 30 hours; after mixing, press and form with a hydraulic press to make a billet with a density of 5.5g / cm 3 The finished blank is then put into a vacuum carbon tube furnace and vacuum sintered at a sintering temperature of 1050° C. for 2 hours to obtain a bearing cage material.

Embodiment 3

[0018] The composition of the nickel-based bearing cage material by weight percentage is: 70% nickel, 12% chromium, 2% silver, and 16% molybdenum disulfide.

[0019] The preparation method of the bearing cage material, the specific steps are: accurately weigh nickel powder, chromium powder, silver powder and molybdenum disulfide powder according to the weight percentage, put them into a drum type ball mill, the ball-to-material ratio is 2:1, mix 40 hours; after mixing, press and form with a hydraulic press to make a billet with a density of 6.5g / cm 3 The finished billet is then put into a vacuum carbon tube furnace and vacuum sintered at a sintering temperature of 1000° C. for 1 hour to obtain a bearing cage material.

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Abstract

The invention discloses a nickel-based bearing retainer material and a preparation method thereof. The retainer material is prepared by the following components in percentage by weight: 65 to 70 percent of nickel, 5 to 12 percent of chromium, 2 to 8 percent of silver, and 16 to 22 percent of molybdenum disulfide. The preparation method comprises the processes of mixing, forming and sintering, and comprises the following steps: firstly, accurately weighing nickel powder, chromium powder, silver powder and molybdenum disulfide powder in percentage by weight, and uniformly mixing the powder; then, pressing and shaping the mixed powder to form a blank; and sintering the blank in vacuum to obtain the bearing retainer material. A bearing retainer made of the bearing retainer material of the invention has self-lubricating function and can ensure the normal operation of a bearing when the bearing is at the high temperature of 400 DEG C in the high-vacuum environment of 10-4 to 10-6 Pa.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a nickel-based bearing cage material and a preparation method thereof. Background technique [0002] Rolling bearings are generally composed of an inner ring, an outer ring, rolling elements and a cage. The cage can evenly distribute the rolling elements, prevent the rolling elements from falling off, guide the rolling elements to rotate and lubricate them. Cages can be divided into stamping cages and solid cages. Solid cages are generally used in workplaces that require high strength and high speed. The performance and applicable occasions of the cage largely depend on the selection of the cage material. Cages made of different cage materials have different performances and are suitable for different use environments. So far, there is no cage material that is used under high temperature and high vacuum conditions and has a self-lubricating function. Contents of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/05B22F3/12F16C33/56
CPCF16C2204/52C22C1/05C22C19/05F16C33/56C22C1/0433C22C1/1084
Inventor 孙永安张永乾赵滨海张玲李县辉于琦孔永刚朱莉峰
Owner LUOYANG BEARING RES INST CO LTD
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