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Wear-resistant surfacing flux-cored wire

A technology of flux-cored welding wire and flux core, which is applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., and can solve the problem that the surfacing alloy cannot meet the use requirements, the formula is unreasonable, toughness, hardness and creep resistance and poor wear resistance

Inactive Publication Date: 2017-09-22
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

At present, the wear-resistant surfacing welding flux-cored welding wire still has unreasonable formula, poor toughness, hardness, creep resistance and wear resistance, so that the surfacing alloy cannot meet the use requirements, resulting in a short service life of metal components.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A wear-resistant surfacing flux-cored welding wire proposed by the present invention is composed of a flux core and a low-carbon steel strip sheath coated on the outside of the flux core. The flux core includes the following components by mass fraction: Cr: 14%, C: 0.5 %, Ti: 0.4%, Nb: 0.2%, Zr: 0.1%, B: 0.3%, W: 0.2%, Mo: 0.2%, Si: 0.9%, Mn: 0.5%, Mg: 0.3%, Cu: 0.2 %, Ni: 0.6%, Sr: 0.1%, Sm: 0.4%, Sc: 0.2%, Y: 0.2%, Eu: 0.1%, and the rest are Fe and unavoidable impurities.

Embodiment 2

[0017] A wear-resistant surfacing flux-cored welding wire proposed by the present invention is composed of a flux core and a low-carbon steel strip sheath coated on the outside of the flux core. The flux core includes the following components by mass fraction: Cr: 16%, C: 0.8 %, Ti: 0.6%, Nb: 0.3%, Zr: 0.2%, B: 0.2%, W: 0.1%, Mo: 0.4%, Si: 0.5%, Mn: 0.8%, Mg: 0.1%, Cu: 0.4 %, Ni: 0.4%, Sr: 0.2%, Sm: 0.2%, Sc: 0.4%, Y: 0.1%, Eu: 0.2%, and the rest are Fe and unavoidable impurities.

Embodiment 3

[0019] A wear-resistant surfacing flux-cored welding wire proposed by the present invention is composed of a flux core and a low-carbon steel strip sheath coated on the outside of the flux core. The flux core includes the following components by mass fraction: Cr: 15.2%, C: 0.8 %, Ti: 0.5%, Nb: 0.25%, Zr: 0.15%, B: 0.25%, W: 0.14%, Mo: 0.32%, Si: 0.72%, Mn: 0.68%, Mg: 0.18%, Cu: 0.32 %, Ni: 0.48%, Sr: 0.15%, Sm: 0.33%, Sc: 0.31%, Y: 0.15%, Eu: 0.13%, and the rest are Fe and unavoidable impurities.

[0020] Among them, the filling rate of flux cored wire is 32%;

[0021] The diameter of the flux cored wire is 3mm;

[0022] The welding process parameters are as follows: welding voltage is 25V, welding current is 330A, wire feeding speed is 520mm / min, flux-cored wire extension length is 32mm, interlayer temperature is 150°C, and the polarity of the power supply is DC reversed.

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Abstract

The invention discloses a wear-resistant surfacing flux-cored wire. The wear-resistant surfacing flux-cored wire consists of a flux core and a low-carbon steel-tape sheath coating the outer side of the flux core, wherein the flux core comprises the following components: Cr, C, Ti, Nb, Zr, B, W, Mo, Si, Mn, Mg, Cu, Ni, Sr, Sm, Sc, Y, Eu, and the balance of Fe and inevitable impurities. The wear-resistant surfacing flux-cored wire is reasonable in composition and high in bonding strength with base metal, a surfacing layer is favorable in toughness, hardness, creep resistance and wear resistance, and the service life of hardware is prolonged.

Description

technical field [0001] The invention relates to the technical field of welding materials, in particular to a wear-resistant surfacing flux-cored welding wire. Background technique [0002] As a high-efficiency welding material, flux-cored wire not only has the advantage of adjustable electrode composition, but also overcomes the defects that the electrode cannot be continuously welded and automatically welded. At the same time, it has the advantages of high deposition efficiency, beautiful weld shape, and small welding deformation. , are widely used in construction, chemical industry, petroleum, aviation and other fields; metal materials generally have wear failure problems, which seriously affect the service life of metal components, and cause huge economic losses every year. Surfacing welding is an economical and fast process for material surface modification, which can effectively change the wear resistance, corrosion resistance and other mechanical properties of the mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30
CPCB23K35/3086
Inventor 卢齐元
Owner 天长市通联焊业有限公司
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