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Molten steel processing method of high-speed steel roller material

A processing method and technology for high-speed steel, applied in the field of molten steel treatment and liquid metal processing of high-speed steel roll materials, can solve problems such as hindering the popularization and application of high-speed steel rolls, poor stability of metamorphic treatment, and large fluctuations in performance of high-speed steel rolls, and achieve solidification. Good effect of microstructure refinement, improved mechanical properties, and stable effect of roll modification treatment

Inactive Publication Date: 2012-03-07
BEIJING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned high-speed steel rolls have the disadvantages of poor stability of modification treatment and large fluctuations in performance of high-speed steel rolls, which hinder the popularization and application of high-speed steel rolls.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Concrete processing steps of the present invention are:

[0028] 1) First, the modified element rare earth magnesium silicon ferrosilicon alloy (mass fraction: 8.15% Ce, 9.86% Mg, 1.54% Ca, 41.70% Si, 1.08% Mn, 0.21% Ti, balance Fe.), vanadium iron (mass fraction For: 52.63% V, 0.17% C, 1.38% Si, 0.05% P, 0.02% S, 0.25% Al, 0.18% Mn, the balance is Fe), titanium iron (mass fraction: 72.05% Ti, 2.80% Al , 1.93% Si, 0.08% C, 0.04% P, 0.01% S, 0.16% Mn, the balance being Fe), ferroniobium (mass fraction: 75.18% Nb, 2.10% Al, 0.88% Si, 0.15% C, 0.03%P, 0.02%S, 0.39%Mn, the balance is Fe), zirconium iron (mass fraction: 25.40%Zr, 39.68%Si, 0.71Al%, 0.39%C, the balance is Fe), potassium oxide ( K 2 O), silicon-calcium-barium alloy (mass fraction: 43.01% Si, 11.45% Ca, 10.86% Ba, 0.38% C, 0.03% P, 0.04% S, the balance being Fe), nitrogen-containing ferrochrome (mass fraction is : 62.54% Cr, 4.87% N, 0.05% C, 1.26% Si, balance Fe), boron iron (mass fraction: 18.53% B, 0.27% ...

Embodiment 2

[0033] Concrete processing steps of the present invention are:

[0034] 1) First, the modified element rare earth magnesium silicon ferrosilicon alloy (mass fraction: 8.15% Ce, 9.86% Mg, 1.54% Ca, 41.70% Si, 1.08% Mn, 0.21% Ti, balance Fe.), vanadium iron (mass fraction For: 52.63% V, 0.17% C, 1.38% Si, 0.05% P, 0.02% S, 0.25% Al, 0.18% Mn, the balance is Fe), titanium iron (mass fraction: 72.05% Ti, 2.80% Al , 1.93% Si, 0.08% C, 0.04% P, 0.01% S, 0.16% Mn, the balance being Fe), ferroniobium (mass fraction: 75.18% Nb, 2.10% Al, 0.88% Si, 0.15% C, 0.03%P, 0.02%S, 0.39%Mn, the balance is Fe), zirconium iron (mass fraction: 25.40%Zr, 39.68%Si, 0.71Al%, 0.39%C, the balance is Fe), potassium oxide ( K 2 O), silicon-calcium-barium alloy (mass fraction: 43.01% Si, 11.45% Ca, 10.86% Ba, 0.38% C, 0.03% P, 0.04% S, the balance being Fe), nitrogen-containing ferrochrome (mass fraction is : 62.54% Cr, 4.87% N, 0.05% C, 1.26% Si, balance Fe), boron iron (mass fraction: 18.53% B, 0.27% ...

Embodiment 3

[0039] Concrete processing steps of the present invention are:

[0040] 1) First, the metamorphic element rare earth magnesium ferrosilicon alloy (mass fraction is: 9.15% Ce, 8.72% Mg, 2.05% Ca, 41.20% Si, 0.96% Mn, 0.37% Ti, balance Fe), vanadium iron (mass fraction is : 51.94% V, 0.18% C, 1.05% Si, 0.05% P, 0.01% S, 0.19% Al, 0.26% Mn, the balance is Fe), titanium iron (mass fraction: 72.91% Ti, 3.50% Al, 2.08% Si, 0.12% C, 0.04% P, 0.02% S, 0.11% Mn, the balance being Fe), ferroniobium (mass fraction: 76.30% Nb, 1.84% Al, 0.69% Si, 0.05% C, 0.03 %P, 0.01% S, 0.33% Mn, the balance is Fe), zirconium iron (mass fraction: 26.28% Zr, 39.51% Si, 0.83Al%, 0.26% C, the balance is Fe), potassium oxide (K 2 O), silicon-calcium-barium alloy (mass fraction: 43.06% Si, 11.67% Ca, 11.48% Ba, 0.40% C, 0.03% P, 0.04% S, the balance being Fe), nitrogen-containing ferrochrome (mass fraction is : 62.90% Cr, 6.01% N, 0.05% C, 0.94% Si, balance Fe), boron iron (mass fraction: 18.38% B, 0.18% ...

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Abstract

The invention relates to a molten steel processing method of a high-speed steel roller material, belonging to the technical field of metallurgy. The molten steel processing method comprises the following steps of: crushing the following materials containing metamorphic elements: rare earth magnesium-ferrosilicon alloy, ferrovanadium, ferrotitanium, ferroniobium, ferrozirconium, potassium oxide, silicon-calcium-barium alloy, nitrogenous ferrochrome, ferroboron and zinc into powder with a grain size of 60-100 meshes, and uniformly mixing the materials in percentage by mass; packaging the mixed materials by adopting a low-carbon steel strip with a thickness of 0.15-0.22 mm, and preparing a metal cored wire with a diameter phi of 5-8 mm by rolling; and adding the metal cored wire into molten steel for pouring high-speed steel rollers in a steel ladle by adopting a wire feeding method, wherein 8-10 kg of the metal cored wire is added into one ton of the molten steel. The molten steel processing method provided by the invention has the advantages of convenient and simple process, high yield of the metamorphic elements and stable metamorphism effect, so that the mechanical property and the operational performance of the high-speed steel roller are obviously improved; in addition, the molten steel processing method is easy to popularize and apply, and good in economic benefit.

Description

technical field [0001] The invention relates to a liquid metal processing method for metal materials, in particular to a liquid steel processing method for high-speed steel roll materials, and belongs to the technical field of metallurgy. Background technique [0002] Improving roll performance and prolonging roll life is a topic of continuous concern to steel rolling workers and roll engineering technicians. A large number of studies have found that using high-speed steel to replace ordinary high-chromium cast iron, nickel-hard cast iron and semi-steel materials to manufacture rolls is an important key to improving roll life. way. U.S. Patent No. 6,095,957 discloses a manufacturing method for centrifugal casting high-speed steel rolls. Its main components are as follows: 2.4-2.9% C, <1% Si, <1% Mn, 12-18% Cr, 3-9% Mo, 3- 8% V and 0.5-4% Nb, the balance is Fe. Due to the high chromium content of this high-speed steel roll, the carbides are mainly M7C3, which is not c...

Claims

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Application Information

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IPC IPC(8): B22D1/00
Inventor 符寒光邢建东雷永平
Owner BEIJING UNIV OF TECH
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