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Light and thin type self-lubricating bearing and manufacturing method thereof

A technology for self-lubricating bearings and manufacturing methods, applied to bearing components, shafts and bearings, mechanical equipment, etc., can solve the problems of complex copper powder sintering process, difficult quality control, high product cost, etc., to achieve environmental protection and reduce energy consumption , save the effect of copper powder

Active Publication Date: 2009-10-14
ZHEJIANG CHANGSHENG SLIDING BEARINGS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the copper powder sintering process is complex, the quality is difficult to control, and copper powder is consumed, resulting in high product costs.

Method used

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  • Light and thin type self-lubricating bearing and manufacturing method thereof
  • Light and thin type self-lubricating bearing and manufacturing method thereof
  • Light and thin type self-lubricating bearing and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The manufacturing method of light and thin self-lubricating bearing has the following steps:

[0039] A. Preparation of non-metallic wear-resistant materials:

[0040] (1) Ingredients: by volume percentage, polytetrafluoroethylene 80%, graphite 10% and glass fiber 10%;

[0041] (2) Abrasives and mixing materials: Grind the above-mentioned ingredients finely, the diameter of the particles is 15 μm, and the aspect ratio of the glass fiber is 4:1-6:1, mix and stir evenly to form a mixture;

[0042] (3) Pressing and forming: put the mixture into a cylindrical mold such as Figure 4 As shown, the pressure is 36MPa, so that the volume ratio of the natural state of the mixture to the compressed state is 3.8, and it is pressed into a cylindrical blank with a hole in the middle, such as Figure 5 shown;

[0043] (4) Sintered billet: put the billet into the heating furnace and gradually increase from natural temperature to 360°C → drop to 120°C → rise to 360°C → drop to 120°C ...

Embodiment 2

[0056] The manufacturing method of light and thin self-lubricating bearing has the following steps:

[0057] A. Preparation of non-metallic wear-resistant materials:

[0058] (1) Ingredients: by volume percentage, polytetrafluoroethylene 83%, molybdenum disulfide 12% and aromatic fiber 5%;

[0059] (2) Abrasives and mixing materials: Grind the above-mentioned ingredients until the particle size is less than 20 μm, mix and stir evenly to form a mixture;

[0060] (3) Pressing, forming: the mixture is put into a cylindrical mold, pressurized at 38MPa, so that the volume ratio of the volume in the natural state of the mixture to the compressed state is 4, and it is pressed into a cylindrical blank with a hole in the middle;

[0061] (4) Sintered billet: Put the billet into the heating furnace and gradually increase from natural temperature to 360°C → drop to 120°C → rise to 360°C → drop to 120°C →, one cycle of temperature rise and fall, 9 consecutive cycles, The total time is 7...

Embodiment 3

[0074] The manufacturing method of light and thin self-lubricating bearing has the following steps:

[0075] A. Preparation of non-metallic wear-resistant materials:

[0076] (1) Ingredients: by volume percentage, polytetrafluoroethylene 70%, tungsten disulfide 18%, carbon fiber 12%;

[0077] (2) Abrasives and mixing materials: Grind the above-mentioned ingredients finely, the size of the particles is less than 15 μm, and the aspect ratio of the carbon fiber is 4:1-6:1, mix and stir evenly to form a mixture;

[0078] (3) pressing, forming: the mixture is put into a cylindrical mould, pressurized to 40MPa, so that the volume ratio of the natural state volume of the mixture to the compressed state is 4.2, and it is pressed into a cylindrical blank with a hole in the middle;

[0079] (4) Sintered billet: Put the billet into the heating furnace and gradually increase from natural temperature to 360°C → drop to 120°C → rise to 360°C → drop to 120°C →, one cycle of temperature rise...

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Abstract

The invention discloses a light and thin type self-lubricating bearing and a manufacturing method thereof, aiming at providing a light and thin type self-lubricating bearing and a manufacturing method thereof which have simple manufacturing technology, low cost, light weight and convenient installation and use. The bearing takes the shape of a shaft housing and takes a metal plate as a substrate, and the inner wall of the substrate is bond with nonmetallic wear-resistant material; and the bearing is characterized in that: through holes which are orderly arranged are made on the substrate, part of the wear-resistant materials on the binding surface of the wear-resistant material and the substrate is embedded in the through holes, and a suture is formed on the surface of the shaft housing. The manufacturing method of the light and thin type self-lubricating bearing comprises the following steps of: preparation of the nonmetallic wear-resistant material, and making, gluing, shaping and checking and storage of the substrate. The invention can lead the nonmetallic wear-resistant material to embed in the through holes and adopts a bonding adhesive for adhesion, thus having strong adhesive force. The punching of the through holes on the metal base material can lower the weight, and the product can be widely applied in mechanisms of chemical engineering, medicine, instruments, meters, aviation, space flight, food processing and the like.

Description

technical field [0001] The invention relates to a sliding bearing, in particular to a light and thin self-lubricating bearing and a manufacturing method thereof. Background technique [0002] Traditionally used self-lubricating bearings are made of laminated composite plates, such as steel-copper-non-metallic composite plates. The general manufacturing process of these composite plates is: cutting steel plates-coating copper powder on the surface of the steel plate and sintering-levelling-surface non-metallic materials Anti-friction material sintering - rolling and leveling the plate to a specified thickness, making it into a blank for sliding bearings, and then forming parts according to requirements. Due to the inconsistency of physical properties between steel and non-metallic materials, such as different thermal expansion coefficients Work, easy to wrinkle or separate between the material joint surfaces; during the bending and forming process of flat materials, the diffe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/10F16C33/12F16C33/14
Inventor 孙志华
Owner ZHEJIANG CHANGSHENG SLIDING BEARINGS
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