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Wear-resistant welding wire and preparation method thereof

A welding wire and wire drawing technology, applied in welding equipment, welding medium, manufacturing tools, etc., can solve the problems of low C content, high cost of precious metals, low wear resistance, etc., achieve uniform internal and external density, ensure the quality of welding wire, and improve wear resistance performance effect

Inactive Publication Date: 2018-11-30
天津沃盾耐磨材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the deficiencies in the prior art, the first purpose of the present invention is to provide a wear-resistant welding wire, which overcomes the defects of high cost of adding precious metals to traditional welding wires and low wear resistance due to low C content; by adding a small amount of low-cost Vanadium, purifying and metamorphic, refining grains, is more conducive to the alloying of wear-resistant welding wire, and improves the wear resistance of welding wire; increasing the C content further improves the wear resistance of welding wire, thereby improving the wear resistance of surfacing alloys strength

Method used

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  • Wear-resistant welding wire and preparation method thereof
  • Wear-resistant welding wire and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0039] A wear-resistant welding wire, prepared by the following method:

[0040]Make vanadium carbide, molybdenum carbide, niobium carbide, nickel carbide, nickel boride, ferrochromium, ferrosilicon, ferromanganese, iron powder and graphite into powder, pass through a 30-mesh sieve, and use a metal powder moisture detector to detect the moisture content≤1 %, weighed and proportioned according to the following weight percentages: chromium: 40.00%; carbon: 8.00%; manganese: 0.50%; silicon: 0.40%; boron: 2.50%; vanadium: 0.10%; %; molybdenum: 0.10%; the balance is iron; fully stir and mix the weighed powder for 100 minutes to obtain mixture A; after blowing the surface of the steel strip with nitrogen at a wind speed of 10m / s, fill the mixture A on the steel strip ; The steel belt filled with mixture A is detachably installed on the vibrating rod, the vibrating rod is connected to the vibrating motor, and the mixture A in the steel belt is vibrated and mixed to obtain the mixture...

Embodiment 2

[0042] A wear-resistant welding wire, prepared by the following method:

[0043] Make vanadium carbide, molybdenum carbide, niobium carbide, nickel carbide, nickel boride, ferrochromium, ferrosilicon, ferromanganese, iron powder and graphite into powder, pass through a 50-mesh sieve, and use a metal powder moisture detector to detect the moisture content≤1 %, weighed and proportioned according to the following weight percentage: chromium: 10.00%; carbon: 3.00%; manganese: 4.00%; silicon: 3.50%; boron: 2.50%; vanadium: 2.00%; nickel: 0.05%; %; molybdenum: 0.50%; the balance is iron; fully stir and mix the weighed powder for 120 minutes to obtain mixture A; after blowing the surface of the steel strip with nitrogen at a wind speed of 12m / s, fill the mixture A on the steel strip ; Subsequent operation steps are consistent with embodiment 1.

Embodiment 3

[0045] A wear-resistant welding wire, prepared by the following method:

[0046] Make vanadium carbide, molybdenum carbide, niobium carbide, nickel carbide, nickel boride, ferrochromium, ferrosilicon, ferromanganese, iron powder and graphite into powder, pass through a 40-mesh sieve, and use a metal powder moisture detector to detect the moisture content≤1 %, weighed and proportioned according to the following weight percentage: chromium: 17.00%; carbon: 3.50%; manganese: 1.00%; silicon: 3.00%; boron: 0.40%; vanadium: 0.80%; nickel: 0.50%; %; molybdenum: 0.10%; the balance is iron; fully stir and mix the weighed powder for 130 minutes to obtain mixture A; after blowing the surface of the steel strip with nitrogen at a wind speed of 15m / s, fill the mixture A on the steel strip ; Subsequent operation steps are consistent with embodiment 1.

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Abstract

The invention relates to the technical field of metal welding materials, in particular to a wear-resistant welding wire. The wear-resistant welding wire comprises, by weight, 10.00%-40.00% chromium, 3.00%-8.00% carbon, 0.50%-4.00% manganese, 0.40%-3.50% silicon, 0.10%-2.50% boron, 0.10%-2.00% vanadium, 0.05%-0.50% nickel, 0.20%-1.00% niobium, 0.10%-0.50% molybdenum and the balance iron. Accordingto the wear-resistant welding wire, defects that the traditional welding wire is high in cost and low in wear resistance are overcame; a small amount of vanadium with low cost is added, and the alloying of the wear-resistant welding wire is facilitated; the C content is improved, the wear resistance of the welding wire is improved, and the wear resistance of the surfacing alloy is improved. The invention further provides a preparation method of the wear-resistant welding wire, primary mixing and deep mixing are carried out, the wear resistance of the surfacing alloy is improved, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of metal welding materials, in particular to a wear-resistant welding wire and a preparation method thereof. Background technique [0002] Bimetal composite wear-resistant steel plate is composed of low-carbon steel plate and alloy wear-resistant layer. The wear-resistant layer generally accounts for 1 / 3-1 / 2 of the total thickness. When working, the matrix provides comprehensive properties such as strength, toughness and plasticity against external forces, and the wear-resistant layer provides wear-resistant properties that meet the requirements of specified working conditions. Wear-resistant steel plate has high wear resistance and good impact performance, can be cut, bent, welded, etc., and can be connected with other structures by welding, plug welding, bolt connection, etc., which saves time and Convenient and other features, it is widely used in metallurgy, coal, cement, electric power, glass, mining, ...

Claims

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Application Information

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IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/3086B23K35/40
Inventor 张志猛邓航海马俊青李昆任海强
Owner 天津沃盾耐磨材料有限公司
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