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

Method for preparing composite material with nano hybrid lubricant on surface

A composite material, nanotechnology, applied in other manufacturing equipment/tools, turbines, engine components, etc., to achieve the effect of low requirements, easy operation and wide application

Inactive Publication Date: 2005-11-23
SHANGHAI JIAO TONG UNIV
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some problems in the performance of this technology.
And the above methods all have the limitation of filling lubricant

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 1

[0015] The preparation method of surface nano-hybrid wetting composite material: 1) using concentration of 4% phosphoric acid and 1% malic acid as anodizing solution, at 1.5A / dm 2 , anodize the aluminum material at 8°C for 2 hours, and a porous oxide film is formed on the surface; 2) Prepare a nano-scale hybrid lubricant, the preparation method is as follows: MoS with a particle size of 4-5 μm 2 And PTFE powder according to the ratio of 4: 6, add 0.1% surfactant (OP) and carry out ball milling, ball material ratio 10: 1, rotating speed is 500r / min, ball milling time is 70h, after ball milling, the particle size in water quality dispersion liquid is in 40-50nm. 3) Immerse the porous oxide film in the dispersion liquid, ultrasonically impregnate and fill the lubricant, the ultrasonic frequency is 50 Hz, and the ultrasonic time is 5 min, and then heated to 150° C. in an oven and kept for 30 min. The coefficient of friction of the obtained surface composite is 0.15.

Embodiment 2

[0017] 1) Aluminum uses a concentration of 4% phosphoric acid and 1% malic acid as an anodizing solution at 1.5A / dm 2 , anodize the aluminum material at 9°C for 2 hours, and a porous oxide film is formed on the surface; 2) Prepare a nano-scale hybrid lubricant, the preparation method is as follows: MoS with a particle size of 4-5 μm 2 And PTFE powder according to the ratio of 5: 5, add 0.5% surfactant (OP) and carry out ball milling, ball-to-material ratio 10: 1, rotating speed is 600r / min, ball milling time is 120h, the particle size in the aqueous dispersion liquid after ball milling is 30-50nm. 3) Immerse the porous oxide film in the dispersion liquid, ultrasonically impregnate and fill the lubricant, the ultrasonic frequency is 50 Hz, and the ultrasonic time is 5 min, and then heated to 150° C. in an oven and kept for 30 min. The obtained surface composite friction coefficient is 0.12

Embodiment 3

[0019] 1) Use 4% phosphoric acid and 1% malic acid as the anodizing solution at 1.5A / dm 2 , anodize the aluminum material at 10°C for 2 hours, and a porous oxide film is formed on the surface; 2) Prepare a nano-scale hybrid lubricant, the preparation method is as follows: MoS with a particle size of 4-5 μm 2 And PTFE powder according to the ratio of 7: 3, add 0.2% surfactant (OP) and carry out ball milling, the ball material ratio is 10: 1, and the rotating speed is 560r / min, and the ball milling time is 90h, and the particle size in the aqueous dispersion after ball milling is 20-40nm. 3) Immerse the porous oxide film in the dispersion liquid, ultrasonically impregnate and fill the lubricant, the ultrasonic frequency is 50 Hz, and the ultrasonic time is 5 min, and then heated to 150° C. in an oven and kept for 30 min. The coefficient of friction of the composite surface obtained is 0.05.

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
Particle sizeaaaaaaaaaa
Login to View More

Abstract

This invention relates to a method for preparing a nanometer confounding lubricant material, which belongs to materials engineering field. The method comprises the following steps: (1) anodic oxidation aluminum products: applying phosphoric acid and malic acid as the anodic oxidation liquid, creating a layer of poriness anodized film in the aluminum products surface. (2) preparing nanometer confounding lubricant: mixing MoS2 and PTFE powder absolutely, adding surface activator OP, then ball grinding in the high-energy ball grinder; ultrasonic dispersing in water. (3) filling of the lubricant: filling the lubricant to the porous aluminum oxide through ultrasonic hot dipping method; heating in the baking oven and insulation. Said invention uses synergistic effect of polyphase lubrication in nanometer dimension, which can increase the frictional factor of surface composite material.

Description

field of invention [0001] The invention relates to a method for preparing a composite material, in particular to a method for preparing a surface nano-hybrid wetting composite material, which belongs to the technical field of material engineering. Background technique [0002] After the aluminum alloy is anodized, a uniform and regular porous aluminum oxide film will be formed on the surface, and its pore size is just at the nanoscale, which has a very large adsorption capacity for lubricants, which is conducive to the filling of nanoscale lubricants, so that it can be prepared. Aluminum surface composite with self-lubricating properties. [0003] After searching the existing technical literature, it was found that Xue Qunji and others wrote an article "Tribological Surface Modification of Aluminum Materials" in "Surface Engineering", 1997: 35 (2) P7, which proposed that the self-lubricating anode that has been developed The treatment process of alumina mainly includes the ...

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): B22F5/00
Inventor 王浩伟王慧
Owner SHANGHAI JIAO TONG UNIV
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