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Slag fluxing agent for molten steel and production method of slag fluxing agent

A production method and technology of thinning slag agent, which is applied in the field of molten steel thinning slag agent, can solve problems such as unsatisfactory thinning slag effect and affecting the quality of finished steel products, so as to improve the slag removal effect, strong slag gathering ability, and meet the needs of use Effect

Active Publication Date: 2015-06-03
海城市金福锋科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the molten steel thinner slag agent is used to react with the residue to reduce the melting point and viscosity of the residue, improve the fluidity of the slag, remove the slag hanging on the wall, absorb the inclusions in the steel, and purify the molten steel. Above, the effect of dilute slag is still not ideal, which greatly affects the quality of finished steel

Method used

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  • Slag fluxing agent for molten steel and production method of slag fluxing agent
  • Slag fluxing agent for molten steel and production method of slag fluxing agent
  • Slag fluxing agent for molten steel and production method of slag fluxing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A molten steel thin slag agent, which is composed of the following components in proportion by weight: 30 parts of potassium feldspar, 50 parts of low-sodium feldspar, and 20 parts of fused silica sand;

[0019] K in the potassium feldspar 2 O content 2 O content 3-5%, SiO 2 The content of > 65%; K in low sodium feldspar 2 O content 2 O content 2 The content of > 65%; SiO in fused silica sand 2 content > 99%;

[0020] The production method of molten steel thin slag agent, the steps are as follows:

[0021] 1) Process potassium feldspar and albite into fine powder with a particle size of 1-0mm, and process fused silica sand into fine powder with a particle size of 1.5-0mm;

[0022] 2) Stir and mix the above powder according to the proportion, and pack the finished product into bags.

Embodiment 2

[0024] A molten steel thin slag agent, which is composed of the following components in proportion by weight: 40 parts of potassium feldspar, 45 parts of low-sodium feldspar, and 15 parts of fused silica sand;

[0025] K in the potassium feldspar 2 O content 2 O content 3-5%, SiO 2 The content of > 65%; K in low sodium feldspar 2 O content 2 O content 2 The content of > 65%; SiO in fused silica sand 2 content > 99%;

[0026] The production method of molten steel thin slag agent, the steps are as follows:

[0027] 1) Process potassium feldspar and albite into fine powder with a particle size of 1-0mm, and process fused silica sand into fine powder with a particle size of 1.5-0mm;

[0028] 2) Stir and mix the above powder according to the proportion, and pack the finished product into bags.

Embodiment 3

[0030] A molten steel thin slag agent, which is composed of the following components in proportion by weight: 50 parts of potassium feldspar, 40 parts of low-sodium feldspar, and 10 parts of fused silica sand;

[0031] K in the potassium feldspar 2 O content 2 O content 3-5%, SiO 2 The content of > 65%; K in low sodium feldspar 2 O content 2 O content 2 The content of > 65%; SiO in fused silica sand 2 content > 99%;

[0032] The production method of molten steel thin slag agent, the steps are as follows:

[0033] 1) Process potassium feldspar and albite into fine powder with a particle size of 1-0mm, and process fused silica sand into fine powder with a particle size of 1.5-0mm;

[0034] 2) Stir and mix the above powder according to the proportion, and pack the finished product into bags.

[0035] The physical and chemical indicators of the molten steel thin slag agent finished product of above-mentioned embodiment 1-3 are:

[0036]

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Abstract

The invention relates to a slag fluxing agent for molten steel and a production method of the slag fluxing agent. The slag fluxing agent comprises components in parts by weight as follows: 30-50 parts of potassium feldspar, 30-50 parts of low albite and 10-20 parts of fused quartz sand, wherein in the potassium feldspar, the content of K2O is smaller than 10%, the content of Na2O is 3%-5%, and the content of SiO2 is larger than 65%; in the low albite, the content of K2O is smaller than 1%, the content of Na2O is smaller than 10%, and the content of SiO2 is larger than 65%; the content of SiO2 in the fused quartz sand is larger than 99%. The slag fluxing agent has high slag accretion capability, can cleanly remove slag, reduces iron loss, improves the slag removal effect, can remove wall hanging residues, absorbs inclusions in steel, purifies the molten steel and has high slag fluxing performance; the content of original slag accounting for about 5% of the molten steel can be reduced to about 1% after slag fluxing, the quality of steel is improved to a great extent, and use demands of a user are met.

Description

technical field [0001] The invention relates to smelting flux materials, in particular to a molten steel thin slag agent and a production method thereof. Background technique [0002] At present, the widely used steelmaking methods mainly include intermediate frequency furnace steelmaking and electric furnace steelmaking. With the continuous progress of steelmaking technology, users' requirements for steel quality continue to increase. During the steelmaking process of intermediate frequency furnace steelmaking and electric furnace steelmaking, the slag content of molten steel is about 5%. At present, the molten steel thinner slag agent is used to react with the residue to reduce the melting point and viscosity of the residue, improve the fluidity of the slag, remove the slag hanging on the wall, absorb the inclusions in the steel, and purify the molten steel. Above, the effect of dilute slag is still unsatisfactory, which greatly affects the quality of finished steel prod...

Claims

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Application Information

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IPC IPC(8): C21C5/54
Inventor 王相丰裘伟王维
Owner 海城市金福锋科技有限公司
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