Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Self-bubricating lead-free bearing and manufacture method thereof

A lead-free bearing, self-lubricating technology, applied in the direction of bearing components, shafts and bearings, rolling resistance optimization, etc., can solve problems such as poor adhesion

Inactive Publication Date: 2004-04-14
ZHEJIANG CHANGSHENG SLIDING BEARINGS
View PDF2 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it has poor adhesion on the dual material, which is the main cause of severe wear

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
  • Self-bubricating lead-free bearing and manufacture method thereof
  • Self-bubricating lead-free bearing and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] During implementation, as described in the invention scheme of the description, wherein the preferred data are as follows:

[0036] The material formula is by weight 32-34% of polytetrafluoroethylene; 32-34% of polyparaben; 7-8% of molybdenum disulfide; the rest is polyphenylene sulfide.

[0037] The drying temperature is 250-280°C, and the drying time is 20-30 minutes, depending on the water in the emulsion is fully developed as the best point.

[0038] The sintering is carried out in a nitrogen-protected sintering furnace, the sintering temperature is 375-385° C., the sintering time is 40 minutes, and the nitrogen purity is above 99.9%. For different sintering furnaces, the nitrogen flow rate and pressure are also different. It is best that the steel substrate is not oxidized.

[0039] During implementation, replace EKONOL with PI or polyimide or / and replace M with graphite 0 S 2 , which has a similar effect.

[0040] Of course, after blanking and rolling, shapin...

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
friction coefficientaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a self-lubricating lead-free bearing, including metal base plate, head-free copper powder layer and antifriction wear-resisting layer, finally they are rolled into the form of shaft sleeve. At the same time said invention also discloses its production method. Its antifriction wear-resisting layer material is PTFE, EKONOL, PPS and MoS2, and its technological process does not use toluene or aluminium nitrate.

Description

Technical field [0001] The present invention relates to sliding bearings, especially oil-free lubricating bearings; it is also related to the composition of polymer compounds. Background technique [0002] The three-layer composite bearing in the oil-free lubricating bearing is created by the British Gracia Company, referred to as DU. The product is based on a sheet-shaped steel plate, with a spherical porous bronze powder layer sintered in the middle, and the surface is rolled with lead-based mixture mainly made of polytetrafluoroethylene (PTFE), which penetrates into and covers the above-mentioned copper powder layer and sinters to form a Anti-friction and wear-resistant layer. Finally, the above-mentioned three-layer composite sheet is rolled into sleeve-shaped bearings of different sizes according to the size of the shaft. The DU type bearings produced all over the world are SF-1 type in China, which have been widely used in high, medium load and low speed occasions. ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F16C33/12F16C33/14
CPCY02T10/865
Inventor 孙志华
Owner ZHEJIANG CHANGSHENG SLIDING BEARINGS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com