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Corrosion-resistant high-toughness flux-cored wire

A technology of flux-cored welding wire with high toughness, which is applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., and can solve the problem of low service life of metal components and unreasonable chemical composition ratio of wear-resistant surfacing welding flux-cored welding wire , surfacing alloy can not meet the use requirements and other problems

Inactive Publication Date: 2017-03-22
天长市通联焊业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The welding quality and welding efficiency are determined by the welding material and welding process, especially the welding material is the key to welding, and the surfacing material is an important factor affecting the wear resistance of the surfacing alloy. The repair is mainly welded by wear-resistant surfacing flux-cored wire, and the chemical composition ratio of wear-resistant surfacing flux-cored wire is unreasonable, and the toughness and corrosion resistance are low, so that the surfacing alloy cannot meet the requirements for use, resulting in the use of metal components lifespan is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A high-hardness and wear-resistant flux-cored welding wire proposed by the present invention is composed of a flux core and a stainless steel sheath coated on the outside of the flux core. The components of the flux core include: C: 0.1%, Si: 0.9%, Mg: 0.1%, Al: 0.4%, B: 0.3%, Mn: 2%, Ni: 3.5%, Cr: 14.5%, Ti: 1.8%, Sr: 0.15%, Mo: 0.08%, V: 0.12%, Zr: 0.02%, Nd: 0.15%, Sc: 0.01%, and the rest are Fe and unavoidable impurities.

Embodiment 2

[0019] A high-hardness wear-resistant flux-cored welding wire proposed by the present invention is composed of a flux core and a stainless steel sheath coated on the outside of the flux core. The components of the flux core include: C: 0.2%, Si: 0.6%, Mg: 0.3%, Al: 0.2%, B: 0.6%, Mn: 1.2%, Ni: 5%, Cr: 19%, Ti: 2.5%, Sr: 0.05%, Mo: 0.15%, V: 0.04%, Zr: 0.035%, Nd: 0.08%, Sc: 0.02%, and the rest are Fe and unavoidable impurities.

Embodiment 3

[0021] A high-hardness wear-resistant flux-cored welding wire proposed by the present invention is composed of a flux core and a stainless steel sheath coated on the outside of the flux core. The components of the flux core include: C: 0.15%, Si: 0.75%, Mg: 0.15%, Al: 0.32%, B: 0.45%, Mn: 1.55%, Ni: 4.2%, Cr: 17.2%, Ti: 2.2%, Sr: 0.09%, Mo: 0.11%, V: 0.08%, Zr: 0.028%, Nd: 0.11%, Sc: 0.016%, and the rest are Fe and unavoidable impurities.

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Abstract

The invention discloses a corrosion-resistant high-toughness flux-cored wire. The corrosion-resistant high-toughness flux-cored wire is composed of a flux core and a stainless steel outer skin coating the outer side of the flux core. The flux core comprises the components in percentage by mass: 0.1-0.2% of C, 0.6-0.9% of Si, 0.1-0.3% of Mg, 0.2-0.4% of Al, 0.3-0.6% of B, 1.2-2% of Mn, 3.5-5% of Ni, 14.5-19% of Cr, 1.8-2.5% of Ti, 0.05-0.15% of Sr, 0.08-0.15% of Mo, 0.04-0.12% of V, 0.02-0.35% of Zr, 0.08-0.15% of Nd, 0.01-0.02% of Sc and the balance Fe and inevitable impurities. The corrosion-resistant high-toughness flux-cored wire disclosed by the invention is good in toughness, hardness, strength, corrosion resistance and wear resistance, and the service life of a metal member is prolonged.

Description

technical field [0001] The invention relates to the field of welding wire technology, in particular to a corrosion-resistant high-toughness flux-cored welding wire. Background technique [0002] Surfacing welding is an economical and fast process method for surface modification of materials. It has a significant effect on improving the service life of parts, improving product performance and reducing production costs. It is widely used in the manufacture and repair of parts in various industrial sectors. The welding quality and welding efficiency are determined by the welding material and welding process, especially the welding material is the key to welding, and the surfacing material is an important factor affecting the wear resistance of the surfacing alloy. The repair is mainly welded by wear-resistant surfacing flux-cored wire, and the chemical composition ratio of wear-resistant surfacing flux-cored wire is unreasonable, and the toughness and corrosion resistance are l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K35/12
CPCB23K35/3053B23K35/0266
Inventor 卢齐元
Owner 天长市通联焊业有限公司
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