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Tungsten-chromium-vanadium-containing high-manganese wear-resistant steel and preparation method thereof

A technology for wear-resistant steel and high-manganese steel, which is applied in the field of tungsten-chromium-vanadium-containing high-manganese wear-resistant steel and its preparation, and the field of high-manganese steel and its preparation, which can solve the problem of low wear resistance and work hardening effect of high-manganese steel. Poor wear resistance and other problems, to achieve the effect of excellent wear resistance and good work hardening effect

Inactive Publication Date: 2014-05-14
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned high manganese steel still has the disadvantages of poor work hardening effect and low wear resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The material of the present invention is smelted in a 1000 kg intermediate frequency induction furnace, and the specific production process steps are:

[0017] ① Firstly, use scrap steel, high manganese steel waste, recarburizer, ferromanganese, ferromanganese nitride, ferrotungsten, ferrochrome, ferrovanadium and metal aluminum as raw materials to melt tungsten-chromium-vanadium high manganese wear-resistant Steel molten steel, the mass fraction of molten steel is controlled at: 1.11%C, 16.56%Mn, 0.47%W, 1.85%Cr, 0.42%V, 0.04%N, 0.08%Al, 0.48%Si, 0.031%S, 0.055%P, and The amount is Fe and unavoidable impurity elements. When the temperature of the molten steel reaches 1548°C, it is taken out of the furnace and put into the ladle.

[0018] ②When all the molten steel enters the ladle, insert the alloy wire containing rare earth, titanium, niobium, boron, potassium, magnesium and other microalloying elements into the molten steel in the ladle. The amount of alloy wire add...

Embodiment 2

[0023] The material of the present invention is smelted in a 1000 kg intermediate frequency induction furnace, and the specific production process steps are:

[0024] ① Firstly, use scrap steel, high manganese steel waste, recarburizer, ferromanganese, ferromanganese nitride, ferrotungsten, ferrochrome, ferrovanadium and metal aluminum as raw materials to melt tungsten-chromium-vanadium high manganese wear-resistant Steel molten steel, the mass fraction of molten steel is controlled at: 1.38%C, 18.47%Mn, 0.35%W, 2.08%Cr, 0.54%V, 0.07%N, 0.11%Al, 0.50%Si, 0.035%S, 0.051%P, and The amount is Fe and unavoidable impurity elements. When the temperature of molten steel reaches 1523°C, it is discharged into the ladle.

[0025] ②When all the molten steel enters the ladle, insert the alloy wire containing rare earth, titanium, niobium, boron, potassium, magnesium and other microalloying elements into the molten steel in the ladle. The amount of alloy wire added accounts for 1.8% of th...

Embodiment 3

[0030] The material of the present invention is smelted in a 1000 kg intermediate frequency induction furnace, and the specific production process steps are:

[0031] ① Firstly, use scrap steel, high manganese steel waste, recarburizer, ferromanganese, ferromanganese nitride, ferrotungsten, ferrochrome, ferrovanadium and metal aluminum as raw materials to melt tungsten-chromium-vanadium high manganese wear-resistant Molten steel, the mass fraction of molten steel is controlled at: 1.29%C, 17.80%Mn, 0.41%W, 1.93%Cr, 0.49%V, 0.05%N, 0.09%Al, 0.40%Si, 0.035%S, 0.048%P, and The amount is Fe and unavoidable impurity elements. When the temperature of molten steel reaches 1539°C, it is discharged into the ladle.

[0032] ②When all the molten steel enters the ladle, insert the alloy wire containing rare earth, titanium, niobium, boron, potassium, magnesium and other microalloying elements into the molten steel in the ladle. The amount of alloy wire added accounts for 2.1% of the mass...

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Abstract

The invention discloses a tungsten-chromium-vanadium-containing high-manganese wear-resistant steel and a preparation method thereof, and belongs to the technical field of wear-resistant materials. The preparation method comprises the following steps: firstly, with steel scrap, high manganese steel waste, a carburant, ferromanganese, nitrogen-containing ferromanganese, ferrotungsten, ferrochromium, ferrovanadium and metallic aluminum as raw materials, smelting tungsten-chromium-vanadium-containing high-manganese wear-resistant molten steel, when the temperature of the molten steel reaches 1520-1550 DEG C, tapping off and feeding in a steel ladle; inserting an alloy wire containing microalloy elements such as rare earth, titanium, niobium, boron, potassium, and magnesium into the molten steel in the steel ladle, the addition amount of the alloy wire accounts for 1.8-2.5wt% of that of the molten steel in the steel ladle, and the diameter phi of the alloy wire is 4.5-6.0 mm; pouring the treated molten steel in a mould; then cleaning a casting head and performing water toughening on a casting so that the tungsten-chromium-vanadium-containing high-manganese wear-resistant steel with excellent wear resisting property can be obtained.

Description

technical field [0001] The invention discloses a high-manganese steel and a preparation method thereof, in particular to a tungsten-chromium-vanadium-containing high-manganese wear-resistant steel and a preparation method thereof, belonging to the technical field of wear-resistant materials. Background technique [0002] After water toughening treatment, high manganese steel obtains a single austenite structure. Under strong impact conditions, austenite undergoes work hardening and transforms into high hardness martensite, which makes high manganese steel exhibit excellent wear resistance. However, high manganese steel is used as crusher jaw plate, ball mill liner, crusher hammer and excavator bucket teeth and other products, because the work hardening effect is not obvious, so that the excellent wear resistance of high manganese steel cannot be exerted. In order to improve the wear resistance of high manganese steel, Chinese invention patent CN1068857 discloses a multi-elem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/38C22C33/04
Inventor 符寒光符定梅雷永平李耳
Owner BEIJING UNIV OF TECH
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