Anti-cracking self-lubricating metal ceramic bearing and preparation method thereof

A cermet and self-lubricating technology, which is applied in the field of cermet bearings, can solve the problems of affecting the service life of bearings, affecting the strength of cermets, and failing to meet the requirements of bearing strength, so as to improve lubricity, increase bonding strength, and reduce interface effects Effect

Inactive Publication Date: 2016-03-02
ANHUI SILVER BALL BEARING
View PDF2 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the metal and ceramic phases are directly sintered, and its boundary effect will affect the strength of the cermet, thereby affecting the service life of the bearing
The ratio of raw materials given in the article cannot meet the strength requirements of the bearing under high load conditions, and needs to be improved

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] An anti-cracking self-lubricating cermet bearing, made of the following raw materials in parts by weight (kg): iron citrate 2.3, basic nickel carbonate 3.1, flake niobium pentoxide 0.2, dimolybdenum boride 0.3, water 25, Appropriate amount of ammonia water, TiH 2 2.9, TiC12, aluminum borate whiskers 2, tantalum-doped tungsten bronze powder 1.6, lubricant 0.7, C1, W8.6, Mo6.1, V3.1, Fe65.

[0014] The preparation method of the anti-cracking self-lubricating cermet bearing comprises the following steps:

[0015] (1) Add ferric citrate into water in a nitrogen atmosphere, heat to 60°C, stir at 90 rpm for 1.5 hours, add TiC, flake niobium pentoxide, dimolybdenum boride, aluminum borate whiskers, doped Tantalum tungsten bronze powder, stirred for 1 hour, then added basic nickel carbonate and stirred for 3 hours, adjusted the pH value to 6 with ammonia water, heated to 90°C and kept stirring for 2 hours to obtain a gel;

[0016] (2) Heating the gel to 150°C and maintaining ...

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

No PUM Login to view more

Abstract

The invention discloses an anti-cracking self-lubricating metal ceramic bearing. The anti-cracking self-lubricating metal ceramic bearing is prepared from, by weight, 2.3-2.4 parts of ferric citrate, 3.1-3.5 parts of basic nickel carbonate, 0.2-0.3 part of flaky niobium pentoxide, 0.3-0.4 part of dimolybdate boride, 25-30 parts of water, an appropriate amount of ammonium hydroxide, 2.9-3 parts of TiH2, 12-12.5 parts TiC, 2-2.3 parts of aluminum borate whisker, 1.6-1.8 parts of tantalum-doped tungsten bronze powder, 0.7-0.9 part of lubricant, 1-1.1 parts of C, 8.6-9 parts of W, 6.1-6.3 parts of Mo, 3.1-3.3 parts of V and 65-66 parts of Fe. By means of flaky niobium pentoxide, dimolybdate boride, aluminum borate whisker and tantalum-doped tungsten bronze powder, the lubricating performance in the pressing process is improved, and the toughness and cracking resistance are improved after sintering.

Description

technical field [0001] The invention relates to the technical field of cermet bearings, in particular to an anti-cracking self-lubricating cermet bearing and a preparation method thereof. Background technique [0002] The development of modern science and technology has higher and higher requirements on the friction, wear and lubrication performance of materials under high temperature conditions. The research and development of self-lubricating composite materials has become an important research hotspot in the field of tribology. Metal or ceramic-based self-lubricating materials are composite materials formed by adding solid lubricants into metal or ceramic matrix as components, and their tribological properties depend on the precipitation and dispersion distribution of solid lubricant contained in the matrix during the friction process. However, there are few solid lubricants that can withstand high sintering temperature without losing lubricating properties, and their un...

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): C22C38/24C22C33/02
Inventor 余寅生
Owner ANHUI SILVER BALL BEARING
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