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Anti-corrosion electric arc spraying powder-core wire material and coating preparing method

A powder core wire material and arc spraying technology, which is applied in metal material coating process, coating, fusion spraying, etc., can solve the problems of difficult research and application of wear-resistant coatings

Inactive Publication Date: 2020-01-17
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research and application of corrosion-resistant and wear-resistant coatings in some harsh conditions such as high-temperature environments is still a difficult problem.

Method used

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  • Anti-corrosion electric arc spraying powder-core wire material and coating preparing method
  • Anti-corrosion electric arc spraying powder-core wire material and coating preparing method
  • Anti-corrosion electric arc spraying powder-core wire material and coating preparing method

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Effect test

Embodiment 1

[0021] According to one aspect of the present invention, this embodiment provides a corrosion-resistant arc spraying powder core wire material and coating preparation method, the powder core wire material is composed of a cladding layer and a powder core, and the cladding layer is stainless steel Narrow strip, the mass percentage of the powder core in the total wire material is 30%, and the stainless steel strip is 304 stainless steel;

[0022] The material and mass percentage of the powder core are: Cr 2 C 3 Powder: 20%, WC powder: 3%, V powder: 3%, Mo powder: 8%, Nb powder: 2.4%, Ni powder: 14%, Cr powder: 9%, Al powder: 8%, the balance is Fe powder; rolled into powder core wire.

[0023] The wire material made of the above-mentioned powder core ratio is prepared on the 45 steel substrate that has been degreased, derusted, sandblasted and roughened. The process parameters used are: voltage 35V; current 210-230A; spraying distance 200mm; atomizing air pressure 0.65MPa. Pr...

Embodiment 2

[0025] According to one aspect of the present invention, this embodiment provides a corrosion-resistant arc spraying powder core wire material and coating preparation method, the powder core wire material is composed of a cladding layer and a powder core, and the cladding layer is stainless steel Narrow strip, the mass percentage of the powder core in the total wire material is 30%, and the stainless steel strip is 304 stainless steel;

[0026] The material and mass percentage of the powder core are: Cr 2 C 3 Powder: 22%, WC powder: 5%, V powder: 4%, Mo powder: 7%, Nb powder: 4%, Ni powder: 15%, Cr powder: 11%, Al powder: 10%, the balance is Fe powder; rolled into powder core wire.

[0027] The wire material made of the above powder core ratio is prepared on the 45 steel substrate that has been degreased, derusted, sandblasted and roughened. The process parameters used are: voltage 30V; current 230-250A; spraying distance 200mm; atomizing air pressure 0.7MPa. The sample wa...

Embodiment 3

[0029] According to one aspect of the present invention, this embodiment provides a corrosion-resistant arc spraying powder core wire material and coating preparation method, the powder core wire material is composed of a cladding layer and a powder core, and the cladding layer is stainless steel Narrow strip, the mass percentage of the powder core in the total wire material is 30%, and the stainless steel strip is 316 stainless steel;

[0030] The material and mass percentage of the powder core are: Cr 2 C 3 Powder: 23%, WC powder: 6%, V powder: 5.5%, Mo powder: 6%, Nb powder: 4.6%, Ni powder: 16%, Cr powder: 12%, Al powder: 12%, and the balance is Fe powder; rolled into powder core wire.

[0031] The wire material made of the above powder core ratio is prepared on the 45 steel substrate that has been degreased, derusted, sandblasted and roughened. The process parameters used are: voltage 35V; current 220-240A; spraying distance 210mm; atomizing air pressure 0.65MPa. The ...

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Abstract

The invention discloses an anti-corrosion electric arc spraying powder-core wire material and a coating preparing method, and belongs to the technical field of metal surface corrosion and protection.The powder-core wire material is composed of a wrapping layer and a powder core. The wrapping layer is made of stainless steel. The filling rate of the powder core is 25-35%. The powder core of the wire material comprises, by mass, 10-30% of Cr2C3 powder, 1-8% of WC powder, 1-8% of V powder, 4-15% of Mo powder, 1-6% of Nb powder, 1-18% of Ni powder, 5-20% of Cr powder, 2-12% of Al powder and the balance Fe powder. When a coating is prepared, surface treatment needs to be performed first, and then spraying is performed. The coating prepared from the wire material has high bonding strength witha base body and has excellent high temperature oxidization resistance and corrosion resistance, and the service life of some devices in high temperature and other harsh working environments can be remarkably prolonged.

Description

technical field [0001] The invention belongs to the technical field of metal surface corrosion and protection, and in particular relates to a corrosion-resistant electric arc spraying powder core wire material and a coating preparation method. Background technique [0002] The failure of steel components due to wear and corrosion has caused huge economic losses and hidden safety hazards. It has always been a concern of all countries in the world, and various protective methods have attracted people's attention increasingly. In a high-temperature environment, the key parts of some mechanical equipment are very easy to fail due to high-temperature corrosion, resulting in huge economic losses and potential safety hazards. Thermal spraying technology can prepare high-performance coatings on the surface of steel components, which can effectively improve their surface properties, play a role in wear resistance and corrosion resistance, and are widely used in thermal protection or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/06C23C4/131C23C4/02C22C30/00
CPCC22C29/067C22C30/00C22C37/08C22C37/10C23C4/02C23C4/06C23C4/131
Inventor 许征兵唐旭江旭东朱伟强郝一帆何际盈周治文曾建民
Owner GUANGXI UNIV