A kind of preparation method and application of powder core wire material for nickel-based coating, coating

A powder core wire material and coating technology, which is applied in the direction of coating, metal material coating process, fusion spraying, etc., to achieve the effect of improving service stability, high hardness and good wear resistance

Inactive Publication Date: 2011-12-14
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] After retrieval, there is currently no use of arc spraying to prepare Cr-containing 23 C 6 Patent reports on related technologies of ceramic particle-reinforced nickel-based coatings

Method used

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  • A kind of preparation method and application of powder core wire material for nickel-based coating, coating
  • A kind of preparation method and application of powder core wire material for nickel-based coating, coating
  • A kind of preparation method and application of powder core wire material for nickel-based coating, coating

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Experimental program
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Effect test

Embodiment 1

[0035] According to the atomic percentage of the drug core composition of the powder core silk material: Cr: 20at.%; B: 30at.%; C: 2.5at.%; Ni: the balance. Filling rate: 32%, rolled powder core wire. Spraying parameters used for coating preparation: voltage 28-30V; current 160-180A; spraying distance 190mm; compressed air pressure 0.5-0.6MPa.

Embodiment 2

[0037] According to the atomic percentage of the drug core composition of the powder core silk material: Cr: 20at.%; B: 30at.%; C: 2.5at.%; Ni: the balance. Filling rate: 32%, rolled powder core wire. Spraying parameters used for coating preparation: voltage 30-32V; current 180-200A; spraying distance 200mm; compressed air pressure 0.5-0.6MPa.

Embodiment 3

[0039] According to the atomic percentage of the drug core composition of the powder core silk material: Cr: 20at.%; B: 30at.%; C: 2.5at.%; Ni: the balance. Filling rate: 32%, rolled powder core wire. Spraying parameters used for coating preparation: voltage 32-34V; current 200-220A; spraying distance 210mm; compressed air pressure 0.5-0.6MPa.

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Abstract

The invention discloses a powder core wire material for preparing a nickel-based coating, a preparation method and application of the coating, and belongs to the field of thermal spraying in material processing engineering. The atomic percentage of the drug core composition is: Cr: 20-35at.%; B: 30-55at.%; C: 2.5-5.5at.%; Ni: balance; the tape used for the powder core wire sheath is Ni-Cr tape ;Powder core wire material filling rate: 32%. When preparing nickel-based coatings containing Cr23C6 ceramic particles reinforced phase by arc spraying, the substrate needs to be pretreated first. Spraying process: voltage 28-34V; current 160-220A; spraying distance 190-210mm; compressed air pressure 0.5-0.6MPa . The invention can obtain a coating with high hardness, good wear resistance and corrosion resistance, and improves the service stability of water-cooled wall tubes and superheater tubes in waste recycling WTE garbage incinerators.

Description

technical field [0001] The invention belongs to the field of thermal spraying in material processing engineering, and relates to a preparation method and application of a powder core wire material and a coating, in particular to a preparation method containing Cr by an arc spraying method. 23 C 6 The preparation method and application of the powder core wire material of the ceramic particle-reinforced phase nickel-based coating, the coating, and the invention are mainly used in industrial fields such as heat resistance, corrosion resistance, and wear resistance. Background technique [0002] Since the beginning of the 21st century, waste-to-energy (WTE) waste incineration technology has become the main development trend in the treatment of solid waste today. [0003] The main corrosion forms of corrosive parts such as superheater and water wall in WTE waste incinerator are active oxidation and molten salt corrosion. The active oxidation is mainly caused by the deposition o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C4/10C23C4/06C23C4/131
Inventor 贺定勇周正赵晓舟李冉蒋建敏李晓延王智慧崔丽赵秋颖
Owner BEIJING UNIV OF TECH
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