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High-manganese low-carbon composite alloy and method for preparing same

A carbon composite and high manganese technology, applied in the field of deoxidizers, can solve the problems of increased steelmaking costs, impurities in deoxidizers, and affecting steel quality, etc., and achieve strict specific gravity control and scientific and reasonable component distribution ratio.

Inactive Publication Date: 2008-08-06
危松林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the deoxidation effect of the above-mentioned deoxidizers has been improved, the amount of aluminum is still relatively large, and the price of aluminum is high and my country's aluminum resources are in short supply, so that the cost of preparing deoxidizers is still very high, and the cost of steelmaking also increases accordingly, and These deoxidizers are all prepared from alloying elements such as silicon-manganese alloy or ferrosilicon alloy. Due to the large content of impurities in the alloying elements, the obtained deoxidizer also contains more impurities, and some impurities are in the refining process. Steel is easy to stay in molten steel and difficult to remove, which directly affects the quality of the obtained steel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] 1) 367kg manganese metal containing manganese content > 99%, metal silicon metal 58kg silicon content > 99% and 90kg aluminum metal content > 99% metal are used by weighing according to the proportion of materials used;

[0016] 2) Put metal manganese and metal silicon into a melting furnace for melting, and the melting temperature is 1300° C. to obtain melt A;

[0017] 3) Put 1 kg of IRQT type strong slag remover produced by Zhangjiagang City Solvent Factory into the melt A, stir and remove the residue to obtain the melt B;

[0018] 4) Take metal aluminum and put it into melt B for smelting, then put into 1kg of refining agent produced by Zhangjiagang Solvent Factory and SRWB of the factory 3 Type ternary modifier 1kg was stirred for 5 minutes, and the residue was removed to obtain melt C;

[0019] 5) Cast the melt C in the ingot mold, and wait for it to cool to obtain a high-manganese low-carbon composite alloy. The weight percentages are: Mn 70%; Si 11%; Al 17%; P<0...

Embodiment 2

[0021] 1) Weigh raw materials by weight percentage, get 394kg manganese metal containing manganese content > 99%, 40kg aluminum metal content > 99% metal aluminum, 58kg silicon metal content > 99% silicon metal;

[0022] 2) Put metal manganese and metal silicon into a melting furnace for melting, and the melting temperature is 1300° C. to obtain melt A;

[0023] 3) Put 1 kg of IRQT type strong slag remover produced by Zhangjiagang City Solvent Factory into the melt A, stir and remove the residue to obtain the melt B;

[0024] 4) Take metal aluminum and put it into melt B for smelting, then put 1kg of JRC1-2001 standard refining agent produced by Zhangjiagang Solvent Factory and SRWB of the factory 3 Type ternary modifier 1kg was stirred for 5 minutes, and the residue was removed to obtain melt C;

[0025] 5) Cast the melt C in the ingot mold, and wait for it to cool to obtain a high-manganese low-carbon composite alloy. The weight percentages are: Mn 70%; Si 11%; Al 17%; P<0....

Embodiment 3

[0027] 1) 394kg manganese metal containing manganese content > 99%, metal silicon metal 90kg silicon content > 99% and 40kg aluminum metal content > 99% metal are used by weighing according to the proportion of materials used;

[0028] 2) Put metal manganese and metal silicon into a melting furnace for melting, and the melting temperature is 1400° C. to obtain melt A;

[0029] 3) SRWB produced by 1kg Zhangjiagang City Solvent Factory 3 Type ternary modifier was put into melt A, stirred for 5 minutes, and then the residue was removed to obtain melt B;

[0030] 4) Take metal aluminum and put it into melt B for smelting, add 1kg of JRC1-2001 standard refining agent produced by Zhangjiagang Solvent Factory and 1kg of SRWB produced by this factory 3 Ternary modifier, then lower the temperature to 1000°C and stir for 5 minutes, then remove the residue to obtain melt C;

[0031] 5) Cast the melt C in the ingot mold, and wait for it to cool to obtain a high-manganese low-carbon comp...

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Abstract

The invention discloses a kind of high manganese and low carbon composition alloy and the preparation method of it, the composition alloy contain the percentage by weight component as follow: Mn 70~75, Si 11~17, Al 7~14, P<0.2, C<0.3, S<0.03,surplus is Fe. The invention of composition alloy component proportioning science and rational, specific weight controlling strict, the method can deoxidize efficient for liquid steel, remove the foreign substance in liquid steel and deoxidize rapidly, make the steel slag easily floated upward and removed to obtain high degree of purity liquid steel, the composition alloy can be used as deoxidant in smelting kinds of steel, especially suitable for smelting conduit wiring steel, bridge and canal steel and high-strength ship plate steel that need strength deoxidation capacity, the composition alloy can reach high deoxidation effect.

Description

(1) Technical field: [0001] The invention relates to a deoxidizer for steelmaking, especially a high-manganese and low-carbon composite alloy; the invention also relates to a preparation method of the high-manganese and low-carbon composite alloy. (two) background technology: [0002] Traditional steelmaking deoxidizers generally use a single pure aluminum or steel core aluminum, aluminum iron deoxidizer, single element deoxidizer, the deoxidation effect is not good, there are many non-metallic inclusions in the smelted steel, the steel quality is not good, and Impurities in the steel are not easy to float and remove, resulting in a low yield of molten steel; especially when pure aluminum is used for deoxidation, due to the low density of aluminum itself, the buoyancy in molten steel is relatively large during the process of smelting and deoxidation, and aluminum can only float on the surface of molten steel. It is not easy to enter the molten steel, so that most of the alum...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C7/06C22C22/00C22C1/02
Inventor 危松林
Owner 危松林
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