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Impact-resistant and high-wear-resistant surfacing alloy material

A technology of surface surfacing and alloy materials, applied in the field of materials, can solve the problems of not meeting wear resistance requirements, reducing the service life of workpieces, and low surfacing efficiency of electrodes, improving bonding ability, improving impact resistance, and alleviating elasticity. Effects of Modulus Mismatch

Active Publication Date: 2010-10-27
LIAONING TECHNICAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] China's patent application "heat-resistant and wear-resistant surfacing electrode" (CN86106019) has designed a kind of electrode that can be used for surfacing welding of easy-wear parts in metal mines. Low, and not conducive to automatic welding
[0005] China's patent application "a cored wire for surfacing" (CN1415453A) designed a cored wire for surfacing, which can be applied to the surface treatment fields such as petroleum industry machinery and downhole tools, but the disadvantage of the flux cored wire is the manufacturing process complicated and expensive
[0006] China's patent application "Fe-05 wear-resistant surfacing alloy powder block" (CN85102440) designed an improved alloy powder block for surfacing welding. This alloy powder block does not require metallurgy and casting processes in the manufacturing process, and has a simple manufacturing process. and other advantages, but the main hard phase of the alloy is Cr 7 C 3 or Cr 23 C 6 , its microhardness value is between HV1000~1300, as a wear-resistant skeleton in wear-resistant alloys, sometimes it cannot meet higher wear-resistant requirements
[0007] China applied for a patent "a wear-resistant alloy material" (CN 100371489C) and designed a wear-resistant alloy material. Boron was added to the alloy in the composition design to form a carbon-boron compound of chromium with higher hardness. At the same time, rare earth was added to the alloy , the hard phase in the alloy is refined, and the wear resistance of the alloy is obviously improved, but the alloy has more cracks when the surface is surfacing, and when it is used for a long time, the wear-resistant layer is easy to peel off, reducing the service life of the workpiece

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Mix ferrochromium, ferroboron, boron carbide, silicon-manganese alloy powder, sodium potassium water glass, nickel powder, ferrovanadium, ferromolybdenum, ferroniobium, rare earth magnesium alloy, graphite and iron powder with a particle size of 70 to 140 mesh, and then Put it in a mold and press it into a block, dry it naturally for at least 24 hours, then dry it at 50-60°C for 0.5-1 hour, then raise the temperature to 150-300°C and keep it warm for 1-5 hours to obtain a surface stack with high impact resistance and wear resistance Welding alloy material, composition by weight percentage is ferrochrome 55%, ferroboron 13%, boron carbide 0.5%, sodium potassium water glass 15%, silicon manganese alloy powder 1%, nickel powder 6.5%, vanadium iron 0.2%, molybdenum iron 0.5%, ferro-niobium 1.5%, rare earth magnesium alloy 1.5%, graphite 0.1%, and the balance is iron; the weight content of magnesium in the rare earth magnesium alloy is 20%, and the balance is lanthanum or cer...

Embodiment 2

[0022] Mix ferrochromium, ferroboron, boron carbide, silicon-manganese alloy powder, sodium potassium water glass, nickel powder, ferrovanadium, ferromolybdenum, ferroniobium, rare earth magnesium alloy, graphite and iron powder with a particle size of 70 to 140 mesh, and then Put it in a mold and press it into a block, dry it naturally for at least 24 hours, then dry it at 50-60°C for 0.5-1 hour, then raise the temperature to 150-300°C and keep it warm for 1-5 hours to obtain a surface stack with high impact resistance and wear resistance Welding alloy material, the composition by weight percentage is 60% ferrochrome, 7% ferroboron, 1% boron carbide, 10% sodium potassium water glass, 1.5% silicon manganese alloy powder, 35% nickel powder, 1% ferrovanadium, ferromolybdenum 1.5%, ferroniobium 2%, rare earth magnesium alloy 3%, graphite 2%, and the balance is iron; the weight content of magnesium in the rare earth magnesium alloy is 22%, and the balance is lanthanum or cerium, an...

Embodiment 3

[0025] Mix ferrochromium, ferroboron, boron carbide, silicon-manganese alloy powder, sodium potassium water glass, nickel powder, ferrovanadium, ferromolybdenum, ferroniobium, rare earth magnesium alloy, graphite and iron powder with a particle size of 70 to 140 mesh, and then Put it in a mold and press it into a block, dry it naturally for at least 24 hours, then dry it at 50-60°C for 0.5-1 hour, then raise the temperature to 150-300°C and keep it warm for 1-5 hours to obtain a surface stack with high impact resistance and wear resistance Welding alloy material, the composition by weight percentage is ferrochrome 68%, ferroboron 5%, boron carbide 1.5%, sodium potassium water glass 8%, silicon manganese alloy powder 2%, nickel powder 1%, vanadium iron 3%, molybdenum iron 2%, ferroniobium 3%, rare earth magnesium alloy 2%, graphite 2.8%, and the balance is iron; the weight content of magnesium in the rare earth magnesium alloy is 24%, and the balance is lanthanum or cerium, and ...

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Abstract

The invention relates to an impact-resistant and high-wear-resistant surfacing alloy material, which belongs to the technical field of materials, and comprises the following components by weight percent: 55-68% of chrome iron, 5-13% of boron iron, 0.5-1.5% boron carbide, 8-15% of sodium and potassium water glass, 1-4.5% of silicon-manganese alloy powder, 0.5-6.5% of nickel powder, 0.2-5% vanadium iron, 0.5-7.5% of molybdenum iron, 1.5-6% of niobium iron, 1.5-5% of rare earth magnesium alloy, 0.1-2.8% of graphite and the balance of iron, and the particle size of each component is 70-140 meshes, wherein the weight content of magnesium of the rare earth magnesium alloy is 20-26%, and the balance is lanthanum or cerium; and the weight percent of silicon of the silicon-manganese alloy powder is 25-50%, and the balance is manganese. The surfacing alloy material designed by the invention can be applied to the preparation of wear-resistant piece surface composite materials and the repair of workpiece surfaces, and the alloy has high macro hardness and strong shock resistance, produces few cracks in the process of use, and has very strong abrasive wear resistance and very wide range of application.

Description

technical field [0001] The invention belongs to the technical field of materials, in particular to an impact-resistant and highly wear-resistant surface surfacing alloy material. Background technique [0002] Wear is one of the three major causes of material damage. In mining, metallurgy, machinery and electric power industries, most of the key components on the equipment are working with impact wear for a long time, and the wear resistance of the workpiece has become a decisive factor. One of the main factors of its service life. These wear-resistant parts mainly impact and rub against minerals and sand grains. According to the wear of wear-resistant parts in the working process, they can be classified as abrasive wear. This type of wear accounts for more than 50% in the industry. For example, Crusher tooth plate, hammer head, strike plate; ball mill liner, grinding ball; scraper machine middle plate, etc. are all peeled off gradually due to plowing, rolling and cracking u...

Claims

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Application Information

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