High-strength wear-resisting flux-cored wire

A flux-cored wire, high-strength technology, used in welding media, welding equipment, welding/cutting media/materials, etc., can solve the problem that the surfacing alloy does not meet the requirements of use, poor toughness, strength and wear resistance, and the life of metal components. It can improve the comprehensive mechanical properties and corrosion resistance, good deoxidation, and improve the droplet transfer process.

Inactive Publication Date: 2017-11-03
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

[0003] At present, the repair of wear-resistant parts is mainly welded by wear-resistant surfacing flux-cored welding wire, but the existing wear-resistant surfacing welding flux-cored welding wire still has unreasonable formula, poor toughness, strength and wear resistance, so that the surfacing alloy reaches Less than the use requirements, resulting in a short life of metal components

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A high-strength wear-resistant flux-cored welding wire proposed by the present invention is composed of a flux core and a sheath coated on the outside of the flux core. The components of the flux core include: Si: 0.7%, B: 0.6%, Cu: 0.6%, C: 2.5%, Mn: 1%, Ni: 0.1%, Al: 2%, Ti: 0.25%, Mo: 2%, V: 0.6%, Sn: 0.3%, Sr: 0.1%, Hf: 0.12%, Nd: 4%, Ce: 4%, Y: 5%, Eu: 1%, and the rest is Fe and unavoidable impurities.

Embodiment 2

[0021] A high-strength wear-resistant flux-cored welding wire proposed by the present invention is composed of a flux core and a sheath coated on the outside of the flux core. The components of the flux core include: Si: 0.5%, B: 1%, Cu: 0.35%, C: 4.2%, Mn: 0.7%, Ni: 0.3%, Al: 1%, Ti: 0.35%, Mo: 1%, V: 0.8%, Sn: 0.1%, Sr: 0.2%, Hf: 0.05%, Nd: 2%, Ce: 7%, Y: 2%, Eu: 2%, and the rest is Fe and unavoidable impurities.

Embodiment 3

[0023] A high-strength wear-resistant 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 components of the flux core include: Si: 0.62%, B: 0.7 %, Cu: 0.46%, C: 3.14%, Mn: 0.85%, Ni: 0.16%, Al: 1.5%, Ti: 0.3%, Mo: 1.5%, V: 0.7%, Sn: 0.22%, Sr: 0.15 %, Hf: 0.08%, Nd: 3%, Ce: 5.6%, Y: 3.4%, Eu: 1.5%, and the rest are Fe and unavoidable impurities.

[0024] Among them, the filling rate of flux cored wire is 32%;

[0025] The diameter of the flux cored wire is 1.5mm;

[0026] The welding process parameters are as follows: welding voltage is 33V, welding current is 300A, wire feeding speed is 540mm / min, and the distance from which the welding wire extends out of the contact tip is 32mm.

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Abstract

The invention discloses a high-strength wear-resisting flux-cored wire. The high-strength wear-resisting flux-cored wire is composed of a flux core and a sheath coating the outer side of the flux core. The flux core comprises following components of Si, B, Cu, C, Mn, Ni, Al, Ti, Mo, V, Sn, Sr, Hf, Nd, Ce, Y, Eu and the balance Fe and inevitable impurities. According to the high-strength wear-resisting flux-cored wire, the components of the flux core are reasonable; after welding, deposited metal has excellent toughness, strength and wear resistance; and the service life of a metal component is remarkably prolonged.

Description

technical field [0001] The invention relates to the technical field of welding materials, in particular to a high-strength wear-resistant flux-cored welding wire. Background technique [0002] 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 material surface, and is beneficial to improving the service life of parts, rational use of materials, and improvement of product performance. , Cost reduction has a significant effect, and it is more and more widely used in the manufacture and repair of mechanical parts. The welding quality and welding efficiency are determined by the welding material and welding process, especially the welding material is the key to welding, the surfacing material is an important factor affecting the wear resistance of the surfacing alloy, and the production efficiency of the flux-cored wire is high. , Con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/22
CPCB23K35/22
Inventor 卢齐元
Owner 天长市通联焊业有限公司
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