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
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  • 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 l

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1

[0029] Prepare as follows:

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

[0031] (2) Pre-treatment of the metal surface before spraying to remove oil and oxide on the surface, and phosphating the surface to improve the bonding performance of the metal and plastic layer;

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

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

[0034] ...

Example Embodiment

[0037] Example 2

[0038] Prepare as follows:

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

[0040] (5) Put the metal bonding part 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 top, the thickness is 6mm, pressurize to 5MPa, then increase 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 the temperature rise to 370°C, keep the temperature for 30 minutes, then Cool under pressure-h...

Example Embodiment

[0043] Example 3

[0044] Prepare as follows:

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

[0046] (5) Put the metal bonding part 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 top, the tile thickness is 10mm, pressurize to 5MPa, and then heat up at a rate of 20°C / min, wait until the temperature rises to 360°C, keep the temperature constant for 30 minutes, then pressurize to 15MPa, and raise the temperature to 380°C, keep the temperature constant for 20 minutes , And then cool under ...

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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

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Application Information

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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
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