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A metal powder-cored flux-cored wire suitable for thin plate welding

A technology of metal powder core and flux cored wire, applied in welding equipment, welding medium, metal processing equipment, etc., to avoid cleaning, improve welding efficiency, and improve welding efficiency

Active Publication Date: 2019-06-21
新乡市和光科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve some of the problems existing in the existing welding technology, and to provide a metal powder-cored flux-cored wire suitable for thin plate welding

Method used

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  • A metal powder-cored flux-cored wire suitable for thin plate welding
  • A metal powder-cored flux-cored wire suitable for thin plate welding
  • A metal powder-cored flux-cored wire suitable for thin plate welding

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Embodiment 1

[0029] A metal powder-cored flux-cored wire suitable for thin plate welding, comprising the following components and parts by mass: metal silicon: 3 parts, metal manganese: 5 parts, rare earth ferrosilicon: 0.8 parts, fluoride (potassium fluoroaluminate) : 0.6 parts, aluminum-magnesium alloy: 4 parts, graphite: 1 part, potassium sodium compound (potassium sodium titanate): 1 part, ferro-titanium: 2.5 parts, cesium oxide: 0.03 parts, atomized iron powder: 15 parts. The powder filling factor of the metal powder cored flux cored wire of the invention is 15%, that is, the mass ratio of the powder to the welding wire is 15:100.

[0030] The welding wire welding process developed according to the present invention adopts 80% Ar+20% CO 2 Gas protection, stable welding process, no obvious spatter. Table 1 compares the difference in welding efficiency between the welding wire that adopts DC reverse connection and the welding wire that adopts DC positive connection in the present inven...

Embodiment 2

[0034] A metal powder-cored flux-cored wire suitable for thin plate welding, comprising the following components and parts by mass: metal silicon: 3 parts, metal manganese: 5 parts, rare earth ferrosilicon: 0.8 parts, fluoride (potassium fluoroaluminate) : 0.6 parts, aluminum-magnesium alloy: 4 parts, graphite: 1.2 parts, potassium sodium compound (potassium sodium titanate): 0.8 parts, ferro-titanium: 2.5 parts, cesium oxide: 0.04 parts, atomized iron powder: 15 parts. The powder filling factor of the metal powder core type flux cored welding wire of the invention is 15%.

[0035] The welding wire welding process developed according to the present invention adopts 100% CO 2 Gas protection, stable welding process, no obvious spatter. Table 2 compares the difference in welding efficiency between the welding wire that adopts DC reverse connection and the welding wire that adopts DC positive connection in the present invention. Under the same welding seam size, the welding wire ...

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Abstract

The invention provides a metal-powder-cored flux-cored wire suitable for light gauge welding. The metal-powder-cored flux-cored wire suitable for light gauge welding comprises, by mass, 3-4 parts of metal silicon, 3-6 parts of metal manganese, 0.5-1 part of rare earth ferrosilicon, 0.5-0.8 part of fluoride, 2-5 parts of aluminium magnesium alloy, 1-1.5 parts of graphite, 0.5-1 part of a sodium and potassium compound, 2-5 parts of ferrotitanium, 0.02-0.04 part of cesium oxide and 10-20 parts of iron powder. By combination of sodium potassium titanate, the graphite and the cesium oxide in the formula of the metal-powder-cored flux-cored wire and by optimizing the best combination of ratios of all metal powder, the metal-powder-cored flux-cored wire welded through a DCSP power supply is obtained, the electric arc in the welding process is stable, splashing does not exist basically, and meanwhile, the thermal input of a workpiece is reduced.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a metal powder-cored flux-cored welding wire. Background technique [0002] At present, in the gas shielded welding process, the welding wire end is usually connected to the positive pole of the power supply, and the welding workpiece is connected to the negative pole, which is DC reverse connection (often expressed as DCRP). Flow to the welding wire, while the generated positive ions flow to the workpiece, impact the surface of the workpiece and transfer energy to the surface of the workpiece, forming a deep weld on the workpiece. The DC positive connection (often expressed as DCSP) process is just the opposite. The positive ions with high energy impact on the welding material of the negative electrode, so the melting rate of the welding wire is faster, and the heat generated on the workpiece is less. But when the DCSP power supply is used, the cathode spot jumps up and down a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/368
CPCB23K35/368
Inventor 刘鹏飞王新彬张海鹏
Owner 新乡市和光科技有限公司
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