Molten steel refining purification assisting agent and preparation method thereof

A technology for cleaning agent and molten steel, which is applied in the field of refining aid for molten steel and its preparation, can solve the problems of unsatisfactory desulfurization of refining agent, adsorption of inclusions, inability to effectively reduce smelting cost, and unfavorable environmental protection, etc. time, improve the effect of molten steel refining, improve the effect of submerged arc effect

Inactive Publication Date: 2011-05-25
陈兰君
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, it has been found that most of the refining agents contain a relatively large amount of lime. When the lime content is large, there will be the following disadvantages: the refining agent is not ideal in terms of desulfurization and adsorption of inclusions, and the amount used in refining is relatively large, resulting in processing costs. High, cannot effectively reduce smelting costs
There are also some refining agents that contain fluorite, which is not conducive to environmental protection

Method used

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  • Molten steel refining purification assisting agent and preparation method thereof
  • Molten steel refining purification assisting agent and preparation method thereof
  • Molten steel refining purification assisting agent and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Embodiment 1: 20 parts of metal aluminum, Al 2 o 3 55 parts, CaO 0.5 parts, SiO 2 12 servings.

[0018] During the preparation, take each raw material, pulverize it, add water and mix it evenly to obtain a mixture, use a ball forming machine to form a ball or press a sample machine to press the mixture, and finally dry it, and the particle size of the finished product is 5mm.

Embodiment 2

[0019] Embodiment 2: 25 parts of metal aluminum, Al 2 o 3 50 parts, CaO 5 parts, SiO 2 1 serving.

[0020] During preparation, the raw materials are taken, pulverized, mixed with water to obtain a mixture, the mixture is formed into balls by a ball forming machine or pressed by a sample press, and finally dried, and the particle size of the finished product is 10mm.

Embodiment 3

[0021] Embodiment 3: 28 parts of metal aluminum, Al 2 o 3 40 parts, CaO 8 parts, SiO 2 5 servings.

[0022] During the preparation, the raw materials are taken, pulverized, mixed with water to obtain a mixture, the mixture is formed into balls by a ball forming machine or pressed by a sample press, and finally dried, and the particle size of the finished product is 15 mm.

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Abstract

The invention belongs to the technical field of steel making and relates to a molten steel refining purification assisting agent and a preparation method thereof. The molten steel refining purification assisting agent comprises the following components in part by mass: 20 to 30 parts of metal aluminum, 35 to 55 parts of Al2O3, 0.5 to 8 parts of CaO and 1 to 12 parts of SiO2. After the molten steel refining purification assisting agent is used, a harmful element, namely sulfur in molten steel can be removed on the basis of completion of deoxidization of molten steel and steel slag, a refining slag system with high inclusion absorption performance is achieved successfully, refining action is brought into full play, the original molten steel refining process can be greatly simplified, the aim of purifying molten steel is fulfilled and production cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of steelmaking, and relates to a cleaning aid for molten steel refining and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of my country's economy and the improvement of people's living standards, the demand for steel products is increasing day by day, and the requirements for the variety and quality of steel products are also getting higher and higher, which puts higher demands on steel production enterprises. Require. Using refining agent to refine molten steel to reduce the content of oxygen, sulfur and inclusions in molten steel is an important way to improve the quality of steel. [0003] However, it has been found that most of the refining agents contain a relatively large amount of lime. When the lime content is large, there will be the following disadvantages: the refining agent is not ideal in terms of desulfurization and adsorption of inclusi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/04
Inventor 陈兰君
Owner 陈兰君
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