Thermal spraying composite coating material for piston ring and preparation method of thermal spraying composite coating material

A composite coating and piston ring technology, applied in the coating, metal material coating process, fusion spraying, etc., can solve the problem that a single material is difficult to meet the requirements, achieve superior tribological performance, reduce friction coefficient, improve The effect of abrasion resistance

Active Publication Date: 2013-07-17
BEIJING UNIV OF TECH
View PDF5 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Today's wear-resistant coatings for piston rings are mainly composed of a single material, and the design of the wear-resi

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
  • Thermal spraying composite coating material for piston ring and preparation method of thermal spraying composite coating material
  • Thermal spraying composite coating material for piston ring and preparation method of thermal spraying composite coating material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Configure composite powder according to four powder mass percentages, TiO 2 60.0wt.%, NiCrBSiFe 0.0wt.%, Cr 2 o 3 40.0wt.%, C-Ni 0.0wt.%.

Embodiment 2

[0028] Configure composite powder according to four powder mass percentages, TiO 2 53.3wt.%, NiCrBSiFe 0.0wt.%, Cr 2 o 3 33.3wt.%, C-Ni 13.4wt.%.

Embodiment 3

[0030] Configure composite powder according to four powder mass percentages, TiO 2 55.0wt.%, NiCrBSiFe 15.0wt.%, Cr 2 o 3 20.0wt.%, C-Ni 10.0wt.%.

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 a thermal spraying composite coating material for a piston ring and a preparation method of the thermal spraying composite coating material, belonging to the field of material surface engineering. The composite coating material is mainly formed by mechanically mixing four different powders in percentage by mass: 20-60wt.% of TiO2 as a ceramic material with the powder diameter of 20-120mum, 0-30wt.% of NiCrBSiFe as a self-melting alloy with the powder diameter of 30-130mum, 20-40wt.% of Cr2O3 as a ceramic reinforced material with the powder diameter of 10-70mum and 0-20wt.% of nickel-coated graphite C-Ni as an antifriction material with the powder diameter of 20-120mum. A wear-resistant coating for the piston ring is prepared by using an atmosphere plasma spraying technology, and the prepared coating has excellent wear resistance.

Description

technical field [0001] The invention relates to a thermal spraying composite coating material for piston rings and a preparation technology thereof, which belongs to the technical field of composite materials and thermal spraying, and is mainly applied to the field of wear-resistant coatings of piston rings. Background technique [0002] The piston ring is a key component in the engine. It reciprocates up and down at a high temperature for a long time. The speed at the top and bottom dead centers of its stroke is close to zero. It is difficult to establish a lubricating oil film. Statistically, the friction and wear of the piston ring accounts for the largest proportion of the wear and tear of the whole machine, about 40%. [0003] At present, surface coating technology is often used to improve the wear resistance of piston rings. Commonly used technologies include electroplating, nitriding, thermal spraying, PVD, CVD, etc. Electroplating technology seriously pollutes the e...

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): C23C4/10C23C4/06C23C4/12C23C4/134
Inventor 李辉孙日超栗卓新魏琪祝弘滨刘旭
Owner BEIJING UNIV OF TECH
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