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Impact-resistant and wear-resistant self-protection flux-cored wire

A flux-cored wire, wear-resistant technology, applied in welding equipment, welding media, welding/cutting media/materials, etc., can solve the problems of increased cost, complex formula, cumbersome production process, etc., to save production cost and simple formula , The effect of simplifying the production process

Active Publication Date: 2020-09-04
鞍山冶金集团炼钢服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the number of components is as high as 12, and the formula is complicated, which will also cause cumbersome production technology and increase the cost

Method used

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  • Impact-resistant and wear-resistant self-protection flux-cored wire
  • Impact-resistant and wear-resistant self-protection flux-cored wire
  • Impact-resistant and wear-resistant self-protection flux-cored wire

Examples

Experimental program
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Effect test

Embodiment 1

[0041] This embodiment provides an impact-resistant and wear-resistant self-protecting flux-cored welding wire. The flux-cored welding wire includes cold-rolled low-carbon steel strip and powder, and the powder is calculated as a percentage of the total mass of the flux-cored wire The composition includes: 37% high-carbon ferrochromium powder, 2% high-carbon ferromanganese alloy powder, 5% ferroboron powder, 0.6% ferromolybdenum powder, 0.1% nickel powder, 1.5% microcrystalline graphite powder, 1% rare earth element, oxidation Bismuth 0.3%, silicon calcium powder 2%. The filling factor is 49.5%.

[0042] Among them, the high-carbon ferrochromium alloy powder requires a carbon content of 8%, and the chromium content is 70%; the high-carbon ferromanganese alloy powder requires a carbon content of 8%, and the manganese content is 75%; The molybdenum content of the powder is 60%, the nickel powder requires 99.5% nickel, the microcrystalline graphite powder contains 99% carbon, th...

Embodiment 2

[0047] This embodiment provides an impact-resistant and wear-resistant self-protecting flux-cored welding wire. The flux-cored welding wire includes cold-rolled low-carbon steel strip and powder, and the powder is calculated as a percentage of the total mass of the flux-cored wire The composition includes: high-carbon ferrochrome alloy powder 38%, high-carbon ferromanganese alloy powder 2%, boron iron powder 4.5%, molybdenum iron powder 1.1%, nickel powder 0.1%, microcrystalline graphite powder 1.7%, rare earth elements 1.2%. Bismuth oxide 0.2%, silicon calcium powder 1.5%. The filling factor is 50.3%.

[0048] Among them, the high-carbon ferrochromium alloy powder requires a carbon content of 6%, and the chromium content is 65%; the high-carbon ferromanganese alloy powder requires a carbon content of 8%, and the manganese content is 75%; The molybdenum content of the powder is 60%, the nickel powder requires 99.5% nickel, the microcrystalline graphite powder contains 99% car...

Embodiment 3

[0053] This embodiment provides an impact-resistant and wear-resistant self-protecting flux-cored welding wire. The flux-cored welding wire includes cold-rolled low-carbon steel strip and powder, and the powder is calculated as a percentage of the total mass of the flux-cored wire The composition includes: 37.6% high carbon ferrochrome powder, 2.2% high carbon ferromanganese alloy powder, 5.3% ferroboron powder, 0.8% ferromolybdenum powder, 0.1% nickel powder, 1.2% microcrystalline graphite powder, and 1% rare earth element. Bismuth oxide 0.2%, silicon calcium powder 1.5%. The filling factor is 49.9%.

[0054] Among them, the high-carbon ferrochromium alloy powder requires a carbon content of 8%, and the chromium content is 70%; the high-carbon ferromanganese alloy powder requires a carbon content of 8%, and the manganese content is 75%; The molybdenum content of the powder is 60%, the nickel powder requires 99.5% nickel, the microcrystalline graphite powder contains 99% carb...

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Abstract

The invention provides an impact-resistant and wear-resistant self-protection flux-cored wire. The flux-cored wire comprises a cold-rolled low-carbon steel strip and powder, wherein the powder comprises the following components of, in percentage by the total mass of the flux-cored wire, 30 %-38 % of high-carbon ferrochrome powder, 1.7 %-2.5 % of high-carbon ferromanganese powder, 4.5 %-5.5 % of ferroboron powder, 0.5 %-1.5 % of ferromolybdenum powder, 0-0.5 % of nickel powder, 1 %-2 % of microcrystalline graphite powder, 0.5 %-1.5 % of rare earth elements, 0.2 %-0.5 % of bismuth oxide and 1 %-2 % of silicon-calcium powder. The flux-cored wire is simple in formula, high in melting efficiency, high in molten pool melting speed and extremely high in abrasion resistance.

Description

technical field [0001] The invention belongs to the technical field of metal material surface repair and relates to a flux-cored welding wire, in particular to an impact-resistant and wear-resistant self-protecting flux-cored welding wire. Background technique [0002] Special welding wire for wear-resistant plates, suitable for chutes, sieve plates, conveying channels, pipes, wear-resistant linings, fan casings, sheaths, silos, bushings, etc. under moderate impact and high wear environments, and the application temperature range does not exceed 350°C. [0003] Generally, wear-resistant self-shielding flux-cored wires use magnesium powder, aluminum powder, fluorite and other raw materials as deoxidizers and slagging agents. As a strong diluent, fluorite can make the gas in the weld easy to escape. If fluorite is added to the slagging agent alone, problems such as slag being too thin and unable to cover the weld may occur; fluorite can desulfurize, and hydrogen The reaction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/24B23K35/368
CPCB23K35/0266B23K35/24B23K35/368
Inventor 孙沛沛李彬周张建高品
Owner 鞍山冶金集团炼钢服务有限公司
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