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A nickel-based arc spraying flux-cored welding wire and its preparation method

A technology of arc spraying and flux-cored welding wire, applied in welding equipment, manufacturing tools, welding media, etc., can solve the problems of natural ecological damage, oil pipeline leakage, easy corrosion, etc., achieve small spatter, stable arc, spray coating uniform effect

Active Publication Date: 2022-03-15
ANSTEEL BEIJING RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Metal materials will corrode directly or indirectly in the air. According to statistics, the corrosion of metal materials causes huge losses to the national economy every year, and the global economic losses are nearly one trillion US dollars, and the corrosion process consumes a lot of resources. causing damage to natural ecology
Petroleum pipelines are exposed to harsh environments for a long time and are prone to corrosion, resulting in leakage of oil pipelines, with disastrous consequences

Method used

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  • A nickel-based arc spraying flux-cored welding wire and its preparation method
  • A nickel-based arc spraying flux-cored welding wire and its preparation method
  • A nickel-based arc spraying flux-cored welding wire and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0026] See figure 1 , Figure 5 A flux-cored welding wire for nickel-based arc spraying, including a nickel-chromium strip sheath and alloy powder wrapped therein, the alloy powder comprising by weight:

[0027] 15 parts of micro-carbon ferrochromium powder, 4.5 parts of high-carbon ferromanganese powder, 6 parts of ferromolybdenum powder, 55 parts of nickel powder, 7 parts of magnesium aluminum powder, 7 parts of reduced iron powder, 4 parts of rutile powder, 1 part of feldspar powder, Fluorite powder 0.2 part, sodium fluorosilicate 0.3 part.

[0028] The preparation method of nickel-based arc spraying flux-cored welding wire is to mix rutile powder, feldspar powder and fluorite powder and heat up to 800°C, and keep it warm for 3 hours; reduce iron powder, micro-carbon ferrochrome powder, high-carbon ferromanganese powder, Powder, nickel powder, magnesium-aluminum powder and sodium fluorosilicate are mixed and heated to 300°C, kept for 2 hours, then the two parts are mixed,...

Embodiment 2

[0035] See figure 2 , Figure 5 A flux-cored welding wire for nickel-based arc spraying, including a nickel-chromium strip sheath and alloy powder wrapped therein, the alloy powder comprising by weight:

[0036] 20 parts of micro-carbon ferrochromium powder, 5 parts of high-carbon ferromanganese powder, 5 parts of ferromolybdenum powder, 51 parts of nickel powder, 5 parts of magnesium aluminum powder, 8 parts of reduced iron powder, 3 parts of rutile powder, 2.2 parts of feldspar powder, 0.4 parts of stone powder, 0.4 parts of sodium fluorosilicate.

[0037] The preparation method of nickel-based arc spraying flux-cored welding wire is to mix rutile powder, feldspar powder and fluorite powder and heat up to 800°C, and keep it warm for 3 hours; reduce iron powder, micro-carbon ferrochrome powder, high-carbon ferromanganese powder, Powder, nickel powder, magnesium-aluminum powder and sodium fluorosilicate are mixed and heated to 300°C, kept for 2 hours, then the two parts are...

Embodiment 3

[0044] See image 3 , Figure 5 A flux-cored welding wire for nickel-based arc spraying, including a nickel-chromium strip sheath and alloy powder wrapped therein, the alloy powder comprising by weight:

[0045] 20 parts of micro-carbon ferrochrome powder, 8 parts of high-carbon ferromanganese powder, 6 parts of ferromolybdenum powder, 45 parts of nickel powder, 8 parts of magnesium aluminum powder, 7 parts of reduced iron powder, 2.4 parts of rutile powder, 3 parts of feldspar powder, 0.3 parts of fluorite powder, 0.3 parts of sodium fluorosilicate.

[0046] The preparation method of nickel-based electric arc spraying flux-cored welding wire is to mix rutile powder, feldspar powder and fluorite powder and then heat up to 800°C and keep it warm for 3 hours; Powder, nickel powder, magnesium aluminum powder and sodium fluorosilicate are mixed and heated to 300°C, and kept for 2 hours, then the two parts are mixed, heated to 300°C, kept for 2 hours, then air-cooled to room temp...

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Abstract

The invention relates to a flux-cored welding wire for nickel-based arc spraying and a preparation method thereof, which comprises a nickel-chromium strip sheath and alloy powder wrapped therein, and the alloy powder includes 15-20 parts by weight of micro-carbon ferrochromium powder , 4-8 parts of high-carbon ferromanganese powder, 4-6 parts of ferromolybdenum powder, 45-60 parts of nickel powder, 5-8 parts of magnesium-aluminum powder, 5-8 parts of reduced iron powder, 2-4 parts of rutile powder, Feldspar powder 1-3 parts, fluorspar powder 0.2-0.4 parts, sodium fluorosilicate 0.2-0.4 parts. The advantages are: nickel-based arc spraying flux-cored wire has reasonable composition, low cost, stable arc, and small spatter. After the flux-cored wire is sprayed by arc spraying, the spray coating is uniform, and the thermal spray coating has high bonding strength and corrosion resistance. .

Description

technical field [0001] The invention relates to a nickel-based arc spraying flux-cored welding wire and a preparation method thereof. Background technique [0002] Corrosion is one of the main forms of failure of mechanical equipment and parts. Metal materials will corrode directly or indirectly in the air. According to statistics, the corrosion of metal materials causes huge losses to the national economy every year, and the economic losses to the world are nearly trillions of dollars, and the corrosion process consumes a lot of resources. And then cause the destruction of natural ecology. Petroleum pipelines are exposed to harsh environments for a long time, and are prone to corrosion, resulting in leakage of oil pipelines, with disastrous consequences. Thermal spraying technology can effectively improve the corrosion resistance of the material surface, thereby protecting the material surface and improving the life of the material. Contents of the invention [0003] I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/30B23K35/368B23K35/40
CPCB23K35/3033B23K35/368B23K35/406B23K35/0266
Inventor 张建王期文高品李彬周孙沛沛王军生马普生陈兆君
Owner ANSTEEL BEIJING RES INST
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