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

Method for preparing ceramic particle reinforced aluminum-based composite coating through plasma transferred arc wire spraying

A ceramic particle and reinforced aluminum-based technology, which is applied in metal material coating process, coating, fusion spraying, etc., can solve the problem of low flying speed of arc spraying particles, poor bonding strength between coating and substrate, and reduced service life of coating and other problems, to achieve the effect of improving bonding strength and compactness, excellent corrosion resistance and wear resistance, and low porosity

Pending Publication Date: 2022-02-25
ARMOR ACADEMY OF CHINESE PEOPLES LIBERATION ARMY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the aluminum-based composite coating can be prepared by arc spraying powder core wire, the coating prepared by arc spraying technology has high porosity and poor compactness; Poor, the coating is easy to fall off during service, which greatly reduces the service life of the coating

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
  • Method for preparing ceramic particle reinforced aluminum-based composite coating through plasma transferred arc wire spraying
  • Method for preparing ceramic particle reinforced aluminum-based composite coating through plasma transferred arc wire spraying
  • Method for preparing ceramic particle reinforced aluminum-based composite coating through plasma transferred arc wire spraying

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Using a rectangular 316 stainless steel plate of 50×10×1mm as the base material, the surface of the long stainless steel strip used as the base material is first degreased, decontaminated, polished and derusted, then ultrasonically cleaned with acetone, and then put into a drying oven for drying , and then perform sandblasting on the surface, and then use compressed air to blow off the sandblasted substrate. The plasma transfer arc wire material spraying process is adopted, and the Al-based powder core wire material (filled with 27% SiC powder) with a diameter of 2mm is used as the spraying raw material, and the aluminum-based ceramic composite coating is sprayed on the surface of the substrate of the above-mentioned pretreated surface. The specific process parameters are: the sum of the working current and the maintenance arc current is 150-160A, the flow rate of the main gas (argon gas) is 115-120L / min, the flow rate of the auxiliary gas (hydrogen gas) is 6L / min, the p...

Embodiment 2

[0052] Using a 10×10×1mm square 316 stainless steel plate as the substrate, the surface of the stainless steel as the substrate is first degreased, decontaminated, polished and derusted, and then ultrasonically cleaned with acetone. After cleaning, it is placed in a drying oven to dry, and then Sandblast the surface, and then use compressed air to blow off the sandblasted substrate. The plasma transfer arc wire spraying process is adopted, and the Al-based powder core wire material (filled with 27% SiC powder) with a diameter of 2mm is used as the spraying raw material, and the aluminum-based ceramic composite coating is sprayed on the surface of the substrate of the above-mentioned pretreated surface. The specific process parameters are: the sum of the working current and the maintenance arc current is 150-160A, the flow rate of the main gas (argon gas) is 115-120L / min, the flow rate of the auxiliary gas (hydrogen gas) is 6L / min, the powder core wire and the nozzle The distan...

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
Diameteraaaaaaaaaa
Average hardnessaaaaaaaaaa
Average binding strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing a ceramic particle reinforced aluminum-based composite coating through plasma transferred arc wire spraying. The method comprises the following steps that firstly, the surface of a base material is pretreated; secondly, the base material obtained after pretreatment is preheated; and thirdly, a powder core wire is sprayed to the surface of the pretreated base material in a plasma transferred arc spraying mode, wherein the filling powder of the powder core wire is ceramic particle powder, and the strip material is Al; the sum of the working current and the pilot arc current in the spraying process is 150 to 200 A, and the working current is larger than the pilot arc current; the spraying main gas is argon, and the flow of the spraying main gas is 100 to 120 L / min; the spraying auxiliary gas is hydrogen, and the flow of the spraying auxiliary gas is 4 to 6 L / min. According to the method for preparing the ceramic particle reinforced aluminum-based composite coating through plasma transferred arc wire spraying, the prepared ceramic particle reinforced aluminum-based composite coating is low in porosity, high in hardness and excellent in corrosion resistance and abrasion resistance.

Description

technical field [0001] The invention belongs to the technical field of composite coating spraying, in particular to a method for preparing ceramic particle-reinforced aluminum-based composite coatings by plasma transfer arc wire material spraying. Background technique [0002] Aluminum and its alloys are widely used in the marine field due to their good corrosion resistance. However, the low hardness of aluminum coatings limits the application of coatings in complex working conditions. Ceramic materials have high strength, elastic modulus and wear resistance, and adding them as reinforcements to aluminum coatings to prepare aluminum-based ceramic composite coatings can greatly increase the service life of the coatings. Al-based ceramic composite coatings can be successfully prepared by thermal spraying Al / SiC mixed powder materials, but the cost of preparing powders is high, and the deposition rate of coatings prepared by powder spraying is slow and the spraying equipment i...

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): C23C4/134C23C4/06C23C4/02
CPCC23C4/134C23C4/06C23C4/02
Inventor 王海斗刘明谭国龙黄艳斐雷少鸣白宇马国政周新远郭伟玲底月兰何东昱
Owner ARMOR ACADEMY OF CHINESE PEOPLES LIBERATION ARMY
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