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Wear-resistant overlaying flux-cored wire

A welding wire and flux core technology, used in welding media, welding equipment, welding/cutting media/materials, etc., can solve the problems of high brittleness, easy detachment of the surfacing layer, and high cracks, and achieve uniform distribution, excellent process performance, and quantity. many effects

Inactive Publication Date: 2015-02-04
李永锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The flux-cored welding wire that is widely used at present is mainly composed of high-chromium and high-boron iron-based alloys. Although this kind of wear-resistant surfacing welding flux-cored wire has high hardness and wear resistance, it is brittle. Larger, the probability of cracks during surfacing is higher, and the surfacing layer is easy to detach

Method used

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  • Wear-resistant overlaying flux-cored wire

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Embodiment 1

[0014] Wear-resistant surfacing flux-cored welding wire, including low-carbon steel outer layer and flux core inner layer, flux core filling factor is 45%, flux core components and parts by weight are: microcrystalline graphite 1, aluminum-magnesium alloy 1, fluoride 1. Silicate 1, titanate 1, carbonate 1, high carbon ferrochromium 80, carbide metal chromium 20, electrolytic chromium powder 5, high carbon ferromanganese 3, rare earth ferrosilicon 1, ferrosilicon 2, ferromolybdenum 4. 5 iron tungsten, 5 iron vanadium, 4 iron niobium, 4 iron titanium, 1 iron boron.

Embodiment 2

[0016] Wear-resistant surfacing flux-cored welding wire, including low-carbon steel outer layer and flux core inner layer, flux core filling factor is 50%, flux core components and parts by weight are: microcrystalline graphite 6, aluminum-magnesium alloy 4, fluoride 2. Silicate 2, titanate 3, carbonate 2, high carbon ferrochromium 60, carbide metal chromium 15, electrolytic chromium powder 10, high carbon ferromanganese 6, rare earth ferrosilicon 4, ferrosilicon 6, ferromolybdenum 10, 10 iron tungsten, 10 iron vanadium, 10 iron niobium, 10 iron titanium, 4 iron boron.

Embodiment 3

[0018] Wear-resistant surfacing flux-cored wire, including low-carbon steel outer layer and flux core inner layer, flux core filling factor is 55%, flux core components and parts by weight are: microcrystalline graphite 6, aluminum-magnesium alloy 3, fluoride 2. Silicate 2, titanate 2, carbonate 2, high carbon ferrochromium 30, carbide metal chromium 30, electrolytic chromium powder 6, high carbon ferromanganese 3, rare earth ferrosilicon 4, ferrosilicon 4, ferromolybdenum 5. Iron tungsten 6, iron vanadium 6, iron niobium 4, iron titanium 4, iron boron 1.

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Abstract

The invention relates to a wear-resistant overlaying flux-cored wire. The wear-resistant overlaying flux-cored wire comprises a low-carbon steel outer layer and a flux core inner layer, wherein the filling coefficient of a flux core is 45-55 percent, and the overlaying flux-cored wire is characterized in that the flux core comprises the following components in parts by weight: 1-6 parts of microcrystalline graphite, 1-4 parts of aluminum-magnesium alloy, 1-2 parts of fluoride, 1-2 parts of silicate, 1-3 parts of titanate, 1-2 parts of carbonate, 30-80 parts of high carbon ferro-chrome, 15-45 parts of metal chromium carbide, 5-10 parts of electrolytic chromium powder, 3-6 parts of high carbon ferromanganese, 1-4 parts of rare earth ferrosilicon, 2-6 parts of ferrosilicon, 4-10 parts of ferromolybdenum, 5-10 parts of ferrotungsten, 5-10 parts of ferrovanadium, 4-10 parts of ferrocolumbium, 4-10 parts of ferrotitanium and 1-4 parts of ferroboron. The wear-resistant overlaying flux-cored wire has the advantages of good hardness, wear resistance and anti-cracking performance.

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] At present, in the electric power, machinery, building materials, metallurgy and other industries, the main failure mode of equipment parts is wear, and the parts that are scrapped due to wear account for the majority. In order to prolong the service life of parts and reduce costs, the solution is to use high Hardness and high wear-resistant surfacing materials are used to repair the surface of parts. Under this background, surfacing materials have developed rapidly. The current surfacing welding materials mainly include surfacing welding rods and surfacing welding wires, but for the surfacing welding of large wear-resistant parts, the surfacing welding electrodes have low surfacing efficiency, high labor intensity, and long welding time, so they are not suitable for application. The allo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/26B23K35/30B23K35/368
CPCB23K35/0266B23K35/3601B23K35/368
Inventor 李永锋
Owner 李永锋
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