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

Carbonide / iron-base alloy composite coating and its reaction brass coating technology

An iron-based alloy and composite coating technology, which is applied in the coating process and coating of metal materials, can solve the problems of easy contamination of the ceramic/metal bonding interface, insufficient stability of coating performance, and high cost of brazing coating materials. High hardness, good corrosion resistance and low material cost

Inactive Publication Date: 2005-04-27
UNIV OF SCI & TECH BEIJING
View PDF0 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, when using the existing brazing technology to prepare ceramic / metal composite coatings, the brazing alloy as the bonding phase and the ceramic phase as the hard phase in the brazing material are pre-synthesized, and the cost of the brazing material is high. The ceramic phase in the coating is coarse and unevenly distributed, the ceramic / metal bonding interface is easily polluted, and the coating performance is not stable enough

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
  • Carbonide / iron-base alloy composite coating and its reaction brass coating technology
  • Carbonide / iron-base alloy composite coating and its reaction brass coating technology
  • Carbonide / iron-base alloy composite coating and its reaction brass coating technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention adopts above-mentioned reactive brazing process, with the industrial iron powder of chemical composition shown in table 1, titanium iron powder, Mo powder, Ni powder, colloidal graphite, boron iron powder, chromium iron powder and Si powder etc. as raw material powder, according to According to the composition ratio in Table 2, the (titanium carbide + chromium carbide) / iron-based alloy composite coating was prepared by reactive brazing on the surface of ordinary low-carbon steel.

[0023] The specific process steps are as follows:

[0024] 1. The material powder is mixed according to the composition ratio, wet milled on a ball mill for 24 hours, the ball-to-material ratio is 4:1, the ball milling speed is 120r.p.m, the ball milling medium is alcohol, and the average particle size of the powder obtained after ball milling is 6-7μm;

[0025] 2. The mixed powder after ball milling is dried in a drying box, the drying temperature is 50°C, and the dryin...

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 present invention is one kind of composite (titanium carbide+chromium carbid) / ferroalloy coating and its reaction coating process, and belongs to the field of composite ceramic / metal coating. Industry Ti-Fe powder, Cr-Fe powder, B-Fe powder, Fe powder, etc. as main material, alcohol and organic adhesive are mixed to form slurry; the slurry is sprayed or painted onto the surface of base body; and through in-situ reaction and alloying under vacuum condition and at certain temperature, composite coating with hard phase of titanium carbide and chromium carbide and base phase of ferroalloy is formed after lowering the temperature. The present invention has low cost of forming the composite coating, and the composite coating has high heat resistance, high oxidation resistance, high corrosion resistance, high antiwear, etc. and may be used widely in metallurgy, thermal power generation and other fields.

Description

technical field [0001] The invention belongs to the technical field of preparation of ceramic / metal composite coatings, in particular to a (titanium carbide+chromium carbide) / iron coating with titanium carbide and chromium carbide as the hard phase and an iron-based alloy as the matrix phase (bonding phase). Base alloy composite coating and its reactive brazing process. Background technique [0002] Brazing coating technology is a material surface processing technology that uses the wetting and spreading of liquid solder alloy on the base metal to form a coating with special properties on the surface of the base. Metal coatings with specific properties can be prepared by using brazing technology, and ceramics / metals can be conveniently prepared by using mixed powders of ceramics (such as carbides, borides, oxides, etc.) and metals (or alloys) as brazing materials. Composite wear-resistant coating. Compared with the traditional coating technology, the braze coating technolo...

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): C23C24/00C23C30/00
Inventor 黄继华裴新军张建纲
Owner UNIV OF SCI & TECH BEIJING
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