High wear resistance surfacing alloy material containing multiphase metal ceramics

A technology of alloy materials and cermets, which is applied in the field of materials, can solve the problems of poor wettability of TiC-based cermet weldability, carcass metal, easy cracks in the surfacing layer, and poor fluidity of the molten pool, etc., achieving a wide range of applications , Improve the fracture strength and fracture toughness, and the effect of low cost

Active Publication Date: 2010-11-10
LIAONING TECHNICAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the wear-resistant phases of commonly used iron-based composite materials are mainly WC and TiC, but if WC-based cermets are used as the wear-resistant phase, there are disadvantages such as relatively low wear resistance and poor crack resistance.
Although the use of TiC-based cermets as the wear-resistant phase has the advantages of low density, high elastic modulus, high hardness and strength, high temperature oxidation resistance, corrosion resistance and wear resistance, but due to the weldability of TiC-based cermets, The wettability with the carcass metal is poor, and the fluidity of the molten pool during surfacing is not good, resulting in poor forming. In addition, the surfacing layer is prone to cracks when it is used for a long time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Mix ferrochrome, ferrotitanium, ferrovanadium, rare earth materials, ferroboron, ferromolybdenum, aluminum powder, ferronickel, powder materials, sodium potassium water glass, carbon black and iron powder with a particle size of 70 to 140 mesh evenly, and then place Press it into a block in a mold, dry it in natural wind for at least 24 hours, then dry it at 60°C for 1 hour, and then heat it up to 150°C for 5 hours to make a high wear-resistant surfacing alloy material containing multi-phase cermets, in which rare earth The material is LaO; its composition is 25% by weight of ferrochrome, 5% of ferro-titanium, 5% of ferro-vanadium, 2% of rare earth materials, 5% of ferro-boron, 5% of ferro-molybdenum, 4% of aluminum powder, 7% of ferronickel, 10% powder material, 10% sodium potassium water glass, 5% carbon black, 13% iron; wherein the powder material is a mixture of TiN powder and TiC powder, the weight content of TiN powder is 5%, and the weight content of TiC powder is...

Embodiment 2

[0022] Mix ferrochrome, ferrotitanium, ferrovanadium, rare earth materials, ferroboron, ferromolybdenum, aluminum powder, ferronickel, powder materials, sodium potassium water glass, carbon black and iron powder with a particle size of 70 to 140 mesh evenly, and then place Press it into a block in a mold, dry it naturally for at least 24 hours, then dry it at 50°C for 0.5h, and then heat it up to 200°C for 4 hours to make a high wear-resistant surfacing alloy material containing multi-phase cermets, in which rare earth The material is LaO; its composition is 30% by weight of ferrochrome, 1% of ferro-titanium, 1% of ferro-vanadium, 0.1% of rare earth materials, 1% of ferro-boron, 0.4% of ferro-molybdenum, 0.5% of aluminum powder, 1% of ferronickel, 0.2% powder material, 8% sodium potassium water glass, 0.1% carbon black, and the balance is iron; wherein the powder material is a mixture of TiN powder and TiC powder, the weight content of TiN powder is 0.1%, and the weight content...

Embodiment 3

[0025] Mix ferrochrome, ferrotitanium, ferrovanadium, rare earth materials, ferroboron, ferromolybdenum, aluminum powder, ferronickel, powder materials, sodium potassium water glass, carbon black and iron powder with a particle size of 70 to 140 mesh evenly, and then place Press it into a block in a mold, dry it naturally for at least 24 hours, then dry it at 60°C for 0.5h, and then heat it up to 250°C for 3 hours to make a high wear-resistant surfacing alloy material containing multi-phase cermets, in which rare earth The material is LaO; its composition is 28% by weight of ferrochrome, 3% of ferro-titanium, 3% of ferro-vanadium, 1% of rare earth materials, 3% of ferro-boron, 2% of ferro-molybdenum, 1% of aluminum powder, 4% of ferronickel, 3% powder material, 9% sodium potassium water glass, 2% carbon black, and the balance is iron; wherein the powder material is a mixture of TiN powder and TiC powder, the weight content of TiN powder is 1%, and the weight content of TiC powd...

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Abstract

The invention relates to a high wear resistance surfacing alloy material containing multiphase metal ceramics and belongs to the technical field of the material. The high wear resistance surfacing alloy material comprises the following ingredients in percentage by weight: 25 to 50 percent of ferrochrome, 1 to 10 percent of ferrotitanium, 1 to 10 percent of ferrovanadium, 0.1 to 5 percent of rare earth material, 1 to 7 percent of ferroboron, 0.4 to 8 percent of ferromolybdenum, 0.5 to 5 percent of aluminium powder, 0.4 to 7 percent of ferronickel, 0.1 to 10 percent of powder material, 8 to 15 percent of sodium potassium silicate, 0.1 to 5 percent of carbon black and the balance of ferrum, wherein the granularity is between 70 and 140 meshes. When the high wear resistance surfacing alloy material containing the multiphase metal ceramics of the invention is adopted to carry out carbon arc surfacing or plasma surfacing, the operation method is simple and the cost is low. Compared with a manual wear-resistance surfacing electrode, the high wear resistance surfacing alloy material is easy to obtain a surfacing layer with high carbon content, high hardness and high wear resistance and has the advantages of firm combination of hard phases and a matrix, high performance of resisting abrasive wear and wide application range.

Description

technical field [0001] The invention belongs to the technical field of materials, in particular to a high wear-resistant surfacing alloy material containing multiphase cermets. Background technique [0002] According to statistics, the annual consumption of steel materials in the world is more than 700 million tons, of which 50% are consumed due to material wear. According to the incomplete statistics of the five departments of my country's electric power, building materials, metallurgy, coal mining and agricultural machinery, the annual consumption of metal materials is more than 3 million tons, and the loss of energy consumption and shutdown due to replacement parts is as high as several billion yuan. . Especially for large-scale machinery used in mines, cement and other fields, due to local wear and tear during use, it cannot continue to be used, and the loss is huge. For example, the jaw crusher used to crush ore is made of high manganese steel with good chiseling wear ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30B23K35/40
Inventor 杨绍斌付大军王洪才孙越军李刚
Owner LIAONING TECHNICAL UNIVERSITY
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