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High-performance flux-cored wire

A flux-cored wire, high-performance technology, used in welding media, welding equipment, welding/cutting media/materials, etc. The effect of uniform texture, improved arc stability, and improved process performance

Inactive Publication Date: 2016-11-23
安徽飞弧焊业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are various types of flux-cored welding wires, but in the actual application process, there are still uneven powder feeding, instability, and uneven melting degree. The coating obtained by spraying on the substrate has low bonding strength, high porosity, and poor toughness. The phenomenon that the layer is easy to crack

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A high-performance flux-cored welding wire proposed by the present invention includes a low-carbon steel strip sheath and a flux core, wherein the raw materials of the flux core include: 3% titanium dioxide, 1% silicon dioxide, 5% calcium carbonate, Magnesia 1%, sodium fluozirconate 5%, boron carbide 3%, zirconia 5%, cobalt oxide 0.1%, manganese powder 12%, nickel powder 1%, chromium powder 10%, molybdenum powder 0.5%, vanadium powder 2 %, 0.05% of iron-cerium alloy, 5% of tungsten powder, 0.1% of copper powder, 1% of ferroboron, 0.2% of aluminum powder, 10% of iron-titanium powder, 2% of ferrosilicon, and the balance is iron powder.

Embodiment 2

[0019] A high-performance flux-cored welding wire proposed by the present invention includes a low-carbon steel strip sheath and a flux core, wherein the raw materials of the flux core include: 5% titanium dioxide, 5% silicon dioxide, 1% calcium carbonate, Magnesia 2%, sodium fluozirconate 1%, boron carbide 0.5%, zirconia 1%, cobalt oxide 2%, manganese powder 3%, nickel powder 3%, chromium powder 2%, molybdenum powder 1.5%, vanadium powder 0.5% %, 0.5% iron-cerium alloy, 1% tungsten powder, 0.9% copper powder, 3% ferroboron, 1% aluminum powder, 3% iron-titanium powder, 8% ferrosilicon, and the balance is iron powder.

Embodiment 3

[0021] A high-performance flux-cored welding wire proposed by the present invention includes a low-carbon steel strip sheath and a flux core, wherein the raw materials of the flux core include: 3.7% titanium dioxide, 3% silicon dioxide, 2% calcium carbonate, Magnesia 1.2%, sodium fluozirconate 3%, boron carbide 1%, zirconia 4%, cobalt oxide 0.8%, manganese powder 5.5%, nickel powder 1.4%, chromium powder 6.2%, molybdenum powder 0.8%, vanadium powder 1.4 %, 0.2% iron-cerium alloy, 2.3% tungsten powder, 0.5% copper powder, 1.1% ferroboron, 0.35% aluminum powder, 6.3% iron-titanium powder, 4.7% ferrosilicon, and the balance is iron powder.

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Abstract

The invention discloses a high-performance flux-cored wire which comprises a mild-carbon steel strip outer skin and a flux core, wherein the flux core is prepared from the following raw materials in weight percent: 3-5% of titanium dioxide, 1-5% of silicon dioxide, 1-5% of calcium carbonate, 1-2% of magnesia, 1-5% of sodium hexafluorozirconate, 0.5-3% of boron carbide, 1-5% of zirconium oxide, 0.1-2% of cobaltous oxide, 3-12% of manganese powder, 1-3% of nickel powder, 2-10% of chromium powder, 0.5-1.5% of molybdenum powder, 0.5-2% of vanadium powder, 0.05-0.5% of iron-cerium alloy, 1-5% of tungsten powder, 0.1-0.9% of copper powder, 1-3% of ferroboron, 0.2-1% of aluminite powder, 3-10% of Fe-Ti composite powder, 2-8% of silicon iron and the balance of iron powder. The high-performance flux-cored wire is stable in electric arc and slightly splashes; an obtained coating has high bonding strength with a substrate and is excellent in impact toughness and crack resistance; and soldering seam formation is attractive.

Description

technical field [0001] The invention relates to the field of welding wire technology, in particular to a high-performance flux-cored welding wire. Background technique [0002] Due to the higher deposition efficiency compared with solid wire, flux cored wire has been widely used in many fields, such as large structural industries such as shipbuilding and marine engineering, to reduce costs. At present, there are various types of flux-cored welding wires, but in the actual application process, there are still uneven powder feeding, instability, and uneven melting degree. The coating obtained by spraying on the substrate has low bonding strength, high porosity, and poor toughness. Layers are prone to cracking. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a high-performance flux-cored welding wire, which has a stable arc, less spatter, high bonding strength between the obtained coatin...

Claims

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Application Information

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IPC IPC(8): B23K35/02B23K35/30B23K35/368
CPCB23K35/0266B23K35/3053B23K35/368
Inventor 卢齐元
Owner 安徽飞弧焊业股份有限公司
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