Metal and plastic composite self-lubricating material and preparation method thereof

A self-lubricating material, metal-plastic technology, applied in metal layered products, chemical instruments and methods, lamination, etc., can solve the problems of poor bonding between metal and plastic, easy peeling of metal and plastic, limitation of use of metal tiles, etc. The effect of improving bonding strength, high rigidity and high strength

Active Publication Date: 2009-09-30
JIANGSU UNIV
View PDF0 Cites 27 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under the condition of high temperature and high pressure, under the condition of corrosive gas and liquid, the use of metal tiles is limited in the equipment where lubricating oil is not allowed in medicine, food, textile, printing and dyeing, etc., and there are fast wear and short service time. Waiting for deficiencies
[0004] 2. Using metal materials as the base material and embedding solid lubricant paste on the metal base material to form a self-lubricating bearing bush, although it has compact structure, firm combination, high temperature resistance, extreme pressure resistance and extended friction pair life Advantages, but the disadvantages are complex manufacturing, unstable coefficient of friction, poor corrosion resistance, and the exposed metal layer is easy to scratch the friction surface
[0005] 3. The bearing bush is made of plastic and sintered copper powder self-lubricating and wear-resistant composite material. Although it has the advantages of high mechanical strength, heat resistance and self-lubricating property, the combination of metal and plastic is poor, and the creep characteristics of plastic will cause The combination between metal and plastic is easy to peel off, which affects its actual service life

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Metal and plastic composite self-lubricating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Prepare as follows:

[0030] (1) Milling pits with a set diameter and depth on the metal layer 3 by a milling lathe according to the preset pit arrangement;

[0031] (2) Carry out pretreatment before spraying on the metal surface, remove oil stains and oxides on the surface, and carry out phosphating treatment on the surface to improve the bonding performance of the metal and plastic layers;

[0032] (3) Plastic working layer 1 Take 70 parts of polyether ether ketone, 12 parts of polytetrafluoroethylene, 7 parts of graphite, 1 part of molybdenum disulfide, and 10 parts of aluminum oxide as raw materials, mix and dry. For the plastic bonding layer 2, 72 parts of polyether ether ketone, 18 parts of polyphenylene sulfide, and 10 parts of aluminum oxide were mixed and dried;

[0033](4) Mix the plastic bonding layer 2 in the above (3), and spray a bonding layer with a thickness of 50um to the surface of the milled metal layer 3 by an electrostatic sprayer;

[0034] (5) Pu...

Embodiment 2

[0038] Prepare as follows:

[0039] Steps (1) to (4) follow the same process as in Example 1; the difference is: 75 parts of polyether ether ketone, 7 parts of polytetrafluoroethylene, 7 parts of graphite, and 1 part of molybdenum disulfide are used for the plastic working layer 1. 10 parts of aluminum oxide; 72 parts of polyether ether ketone, 18 parts of polyphenylene sulfide, and 10 parts of aluminum oxide for the plastic bonding layer 2;

[0040] (5) Put the metal combination in the above (4) into the cavity of the hot pressing mold as an insert, and then spread the plastic working layer 1 mixture in the above (3) on the steel back of the milled metal layer 3 On, the thickness is 6mm, pressurize to 5MPa, then raise the temperature at a rate of 15°C / min, wait for the temperature to rise to 340°C, keep the temperature for 20 minutes, then pressurize to 12MPa, and raise the temperature to 370°C, keep the temperature for 30 minutes, then Cooling under pressure-holding conditi...

Embodiment 3

[0044] Prepare as follows:

[0045] Steps (1) to (4) follow the same process as in Example 1, except that: 80 parts of polyether ether ketone, 4 parts of polytetrafluoroethylene, 7 parts of graphite, and 1 part of molybdenum disulfide are used for the plastic working layer 1. Parts, 8 parts of aluminum oxide; 80 parts of polyether ether ketone, 10 parts of polyphenylene sulfide, and 10 parts of aluminum oxide for the plastic bonding layer 2;

[0046] (5) Put the metal combination in the above (4) into the cavity of the hot pressing mold as an insert, and then spread the plastic working layer 1 mixture in the above (3) on the steel back of the milled metal layer 3 Above, the tile thickness is 10mm, pressurize to 5MPa, then raise the temperature at a rate of 20°C / min, wait for the temperature to rise to 360°C, keep the temperature for 30 minutes, then pressurize to 15MPa, and raise the temperature to 380°C, keep the temperature for 20 minutes , and then cooled under pressure-ho...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Wear rateaaaaaaaaaa
Wear rateaaaaaaaaaa
Wear rateaaaaaaaaaa
Login to view more

Abstract

The invention discloses a metal and plastic composite self-lubricating material and a preparation method thereof. The metal and plastic composite self-lubricating material comprises a metal layer, a plastic binding layer and a plastic working layer, wherein the plastic binding layer binds the metal layer and the plastic working layer together through a chemical bond of a molecule; one part of theplastic working layer is embedded in a drop pit of the metal layer; the plastic working layer includes the material components according to the mass percent as follows: 60-90 of polyether-ether-ketone, 5-20 of polyfluortetraethylene, 7 of graphite, 1 of MoS2 and 5-10 of aluminium oxide; and the plastic binding layer includes the material components according to the mass percent as follows: 70-90 of polyether-ether-ketone, 5-20 of polyphenyl thioether and 5-10 of aluminium oxide. By adding the plastic binding layer between the metal layer and the plastic working layer, the invention further improves the binding strength of metal and plastic, has favorable heat resistance and resistance to chemical corrosion, no environment pollution, low noise and energy saving; in addition, the usage temperature is -60 DEG C to 250 DEG C, the friction coefficient is 0.08-0.32 and the wear rate is 0.8-3.5*10<-6>mm<3> / N. m.

Description

technical field [0001] The invention provides a metal-plastic composite self-lubricating material and a preparation method thereof. Background technique [0002] At present, with the development of aerospace industry, automobile industry, machinery industry, food and pharmaceutical machinery and various transmission parts, the requirements for various shaft sleeves, skateboards, slideways and friction parts are getting higher and higher. In mechanical operation, the following methods are often used to reduce the friction coefficient and prolong the service life of equipment: [0003] 1. Apply a layer of lubricating oil as a lubricant on the contact surface between the metal tile and the shaft to reduce the friction coefficient and prolong the service life of the equipment. However, under the condition of high temperature and high pressure, under the condition of corrosive gas and liquid, the use of metal tiles is limited in the equipment where lubricating oil is not allowed...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B32B15/08B32B7/10C08L71/00C08K3/04C08K3/30C08K3/22B05D7/24B32B37/24
Inventor 骆志高庞朝利陈保磊
Owner JIANGSU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap