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Thin-wall bimetal self-lubricating bearing and manufacturing method

A self-lubricating bearing and manufacturing method technology, applied in bearing components, shafts and bearings, mechanical equipment, etc., can solve the problems of high cost and low mechanical strength, and achieve the effects of light weight, improved mechanical strength, and obvious effects

Active Publication Date: 2006-11-29
孙承玉 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problems of relatively high product cost and low mechanical strength existing in the prior art, and provides a thin-walled bimetallic self-lubricating bearing with high strength and low cost and its manufacturing method

Method used

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  • Thin-wall bimetal self-lubricating bearing and manufacturing method

Examples

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Embodiment 1

[0020] a. Spread 150-250 mesh spherical or dendritic copper alloy powder uniformly on a steel plate or stainless steel plate 1 of 1 to 3 mm with a thickness of 0.5 to 2 mm. Use a hydrogen protection furnace or a vacuum furnace for sintering and rolling after sintering. Compound copper alloy layer 2 on steel plate or stainless steel plate 1;

[0021] b. Use drilling, punching or rolling on the copper alloy layer 2 to process blind holes that can be round, diamond, square, oval and other shapes. The depth of the blind hole 3 is 0.4~1.9mm, if yes For round holes, the hole diameter is 1.3-3.5mm, and the total surface area of ​​the solid lubricant should be 25-35% of the copper alloy surface area.

[0022] c. Spray ammonium chloride solution evenly on the inner surface of the blind hole 3, then spread 40-150 mesh spherical tin bronze powder on the ammonium chloride solution, use a hydrogen protection furnace or a vacuum furnace to sinter the copper powder, and then chlorinate after sin...

Embodiment 2

[0026] Others are the same as in embodiment 1, except that step a is to spray 150-250 mesh spherical or dendritic copper alloy powder on the steel plate or stainless steel plate 1, that is, compound the copper alloy layer 2 on the steel plate or stainless steel plate 1.

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Abstract

The invention discloses a thin wall bimetal self-lubricating bear that is compound by steel board or corrosion resistant plate and copper alloy layer. Blind hole is distributed on the copper alloy layer. Tin bronze powder layer is on the inner surface of blind hole and solid lubrication is contained in the tin bronze powder layer. The manufacture method includes the following steps: compound copper alloy layer on the steel board or corrosion resistant plate, processing blind holes on the copper alloy layer and spraying ammonium chloride solution on the surface of blind hole and spreading tin bronze powder onto the ammonium chloride solution; taking copper powder sintering to make the powder layer combining on the surface of blind hole; embedding the solid lubrication into blind hole, sintering at 365-395 degree centigrade to make board material; taking cutting, rolling and finishing to make the product. It has the feature of low cost and high intention.

Description

Technical field: [0001] The invention relates to a self-lubricating bearing and a manufacturing method, in particular to a thin-walled bimetallic self-lubricating bearing with high strength and low cost and a manufacturing method. Background technique: [0002] The structure of the existing inlaid self-lubricating bearings basically has the following two forms: one is a copper alloy inlaid self-lubricating bearing, the copper alloy is poured into a cylindrical blank by a casting method, and the inner and outer circles are initially processed. The through holes or blind holes are evenly distributed on the round surface, and the solid lubricating cylinder is embedded in the through holes or blind holes by interference fit or bonding, and then formed by mechanical finishing. In order to ensure the strength of the product and the firmness of the solid lubricating cylinder, the copper alloy wall is usually thick, usually 5-40mm, which wastes materials and the product is bulky. There i...

Claims

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Application Information

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IPC IPC(8): F16C33/10F16C33/14
Inventor 孙承玉关振国王焕栋
Owner 孙承玉
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