Method for preparing sliding bearing by using polyether-ether-ketone composite material

A technology of composite materials and sliding bearings, which is applied in the direction of bearing components, shafts and bearings, mechanical equipment, etc., can solve the problems of poor adhesion, small active specific surface area, and low surface energy, achieve excellent friction and wear performance, and improve interface bonding Performance and Effect of Coefficient of Friction

Inactive Publication Date: 2010-02-24
SHANGHAI SECOND POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, studies have found that carbon fiber has a small active specific surface area and low surface energy before surface treatment. When it is used as a reinforcement of composite materials, its performance is often affected by its poor adhesion to the resin interface.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The composition weight percent of the polymer layer of the composite sliding bearing is: polyether ether ketone: 70%, carbon fiber: 25%, molybdenum disulfide: 5%.

[0015] The manufacturing process of composite bearings is as follows:

[0016] First, pretreat the carbon fiber, ablate it in an oxidation furnace at 450°C for 1 minute, spread a layer of bronze powder with a thickness of 0.3mm on the steel plate, and sinter the copper powder and the steel plate substrate at 800°C to make A layer of bronze powder is sintered on the surface of the steel plate as an intermediate layer for 2 hours; a polymer layer with a thickness of 0.01 mm is rolled on the intermediate layer of sintered bronze powder at a pressure of 12 MPa, and then under the condition of nitrogen protection and 340 ° C It is sintered, then machined and modified, and finally rolled and welded to form a composite material self-lubricating sliding bearing.

[0017] The tribological test was carried out on the...

Embodiment 2

[0019] The composition weight percent of the polymer layer of the composite sliding bearing is: polyetheretherketone: 94%, carbon fiber: 5%, molybdenum disulfide: 1%.

[0020] The manufacturing process of composite material bearings is as follows: first, pre-treat the carbon fiber, ablate it in an oxidation furnace at 500 °C for 1 minute, spread a layer of bronze powder with a thickness of 0.25 mm on the steel plate, and put the copper powder and steel plate at 800 °C The substrates are sintered together, so that a layer of bronze powder is sintered on the surface of the steel plate as the middle layer, and the time is 2 hours; a polymer layer with a thickness of 0.03 mm is rolled on the sintered bronze powder middle layer, and the pressure is 12MPa, and then Nitrogen protection, sintering at 340°C, and then machining and modification, and finally rolling and welding to form a composite material self-lubricating sliding bearing.

[0021] The tribological properties of the prep...

Embodiment 3

[0023] The composition weight percent of the polymer layer of the composite sliding bearing is: polyether ether ketone: 75%, carbon fiber: 20%, molybdenum disulfide: 5%.

[0024] The manufacturing process of composite bearings is as follows:

[0025] First, pretreat the carbon fiber, ablate it in an oxidation furnace at 450°C for 3 minutes, spread a layer of bronze powder with a thickness of 0.25 mm on the steel plate, and sinter the copper powder and the steel plate base material at 800°C to make A layer of bronze powder was sintered on the surface of the steel plate as the middle layer for 2 hours; a polymer layer with a thickness of 0.02 mm was rolled on the middle layer of sintered bronze powder at a pressure of 12 MPa, and then under the condition of nitrogen protection and 340 ° C It is sintered, modified by machining, and finally rolled and welded into a self-lubricating sliding bearing of composite material.

[0026] The tribological properties of the prepared composi...

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Abstract

The invention relates to a method for preparing a sliding bearing by using a polyether-ether-ketone composite material, which comprises the following steps: firstly, performing air oxidation treatmentto carbon fibers, wherein the oxidation temperature is 450-500 DEG C and the oxidation time is 1-3min; secondly, laying a layer of bronze powder with thickness of 0.25-0.3mm on a steel plate, sintering the bronze powder and the steel plate substrate together at a temperature 800 DEG C for 2h; rolling a polymer layer of thickness of 0.01-0.03mm on an interlayer of the bronze powder, wherein the pressure is 12MPa, the polymer layer comprises the following raw materials in percentage by weight: 70-95 percent of polyether-ether-ketone, 1-5 percent of molybdenum disulfide and 4-25 percent of carbon fibers; sintering under the condition of nitrogen protection, at 340 DEG C, machining and modifying, rolling, and welding to form a sliding bearing made of the composite material. The invention canimprove the interface bonding performance and the friction coefficient of the composite material to enable the sliding bearing to have excellent friction wear performance.

Description

technical field [0001] The invention relates to a method for preparing a novel wear-resistant sliding bearing, in particular to a method for preparing a high-temperature-resistant self-lubricating sliding bearing from a polyetheretherketone composite material. Background technique [0002] Composite material sliding bearing is a new type of oil-free lubricating sliding bearing, which is widely used in some domestic industrial sectors. A layer of polymer plastic or polymer composite material is rolled as the surface layer, which can be self-lubricated. It makes full use of the rigidity of the metal and the excellent self-lubricating properties of the plastic, thereby making up for the shortcomings of the unstable size of the plastic and the poor dry friction of the metal, so that it has fatigue resistance, high bearing capacity, good wear resistance, and long life. features. [0003] Polyether ether ketone is a high-performance thermoplastic polymer, which has the character...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/14B22F7/06
Inventor 李健周洲
Owner SHANGHAI SECOND POLYTECHNIC UNIVERSITY
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