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Base thrust washer of thermoplastic polymer, and preparation method

A technology of thermoplastic polymers and thrust washers, which is applied in the direction of mechanical equipment, bearings, sliding contact bearings, etc., can solve the problems of easy deformation and failure, use conditions, complex forming process of thrust washers, high production cost, etc., and achieve large elastic deformation and extended Maintenance cycle and the effect of extending the service life

Active Publication Date: 2007-12-26
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of complex molding process, low efficiency, high production cost, high noise during use, easy deformation and failure, and harsh conditions of use in the existing thrust washer. Object is the thrust washer of matrix; Another object of the present invention is to provide the preparation method of above-mentioned material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: the thermoplastic polyimide (GCPI) of mass percentage composition 70% TM , Aurum), 10% polytetrafluoroethylene, 5% molybdenum disulfide after being mixed uniformly by a high-speed mixer, adding a twin-screw extruder to blend and granulate, and metering 15% of the mass percentage in the process Glass fiber (provided by Nanjing Glass Fiber Research and Design Institute), the material particles for the gasket can be obtained by extruding the material, and the gasket can be obtained by injection molding the particles. See the attached table for specific process parameters and material properties.

Embodiment 2

[0026] Example 2: Mix 75% polyether ether ketone (Victrex), 6% polytetrafluoroethylene, and 4% graphite through a high-speed mixer, and then add them to a twin-screw extruder for blending and granulation In this process, 15% by mass of carbon fiber (produced by Taiwan Plastic Industry Co., Ltd.) is metered and extruded to obtain material particles for gaskets, and the particles are injection molded to obtain gaskets. See the attached table for specific process parameters and material properties.

Embodiment 3

[0027] Embodiment 3: the thermoplastic polyimide (Aurum) of mass percent composition 30%, the polyether ketone (Kadel) of 30%, the polytetrafluoroethylene of 10%, the graphite of 5% and the molybdenum disulfide of 5% After mixing uniformly by a high-speed mixer, add a twin-screw extruder to blend and granulate. In this process, 10% carbon fiber (produced by Taiwan Plastic Industry Co., Ltd.) and 10% glass fiber (Nanjing Plastic Industry Co., Ltd.) are metered into the process. Provided by Glass Fiber Research and Design Institute), the material particles for the gasket can be obtained by extruding the material, and the gasket can be obtained by injection molding the particles. See the attached table for specific process parameters and material properties.

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Abstract

This invention relates to a thermoplastic polymer thrust gasket and its preparation method including: weighing thermoplastic polymer and a solid lubricant and mixing them with a high speed mixer, then putting and sizing them in a double-screw extruder and adding reinforced fiber and whisker in it to prepare a material of high temperature resistance, high strength, anti-strike, large elasticity, low friction coefficient and low abrasion and thrust gaskets of complicated structure and different sizes can be made by injection forming at one run with the special material.

Description

technical field [0001] The invention relates to a thrust washer and a preparation method thereof, in particular to a thermoplastic polymer composite thrust washer and a preparation method thereof. Background technique [0002] In the mechanical transmission system, between two relatively rotating floating metal parts, due to the axial movement of the floating parts along the rotation axis, there will be certain collision and relative friction between the end faces of the two parts. However, due to the high modulus and low ductility of metal materials, the direct collision between relatively rotating metal parts will cause deformation of the metal, resulting in greater wear and tear, and even the interlocking of metal parts, which will affect the entire equipment. operation. Therefore, it is necessary to place a gasket between the two metal parts to withstand the axial impact, transmit the axial force, and play the role of friction bearing, reduce the wear of the transmissio...

Claims

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Application Information

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IPC IPC(8): F16C17/04F16C33/20C08L79/08C08L71/00C08K7/14
Inventor 黄培王晓东宋艳江
Owner NANJING UNIV OF TECH
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