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Deoxidizing agent for steelmaking of electric converter and preparation method thereof

A deoxidizer and electric converter technology, which is applied in the field of electric converter steelmaking, can solve the problems of not being able to improve the quality of steel products, difficult removal of impurities in finished products, and problems affecting product quality, so as to achieve good deoxidation effect, improve processing and mechanical properties, and be economical. significant effect

Active Publication Date: 2012-08-01
芜湖县天海耐火炉料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the deoxidizer used in the steelmaking process of the domestic metallurgical industry is mainly aluminum or aluminum alloy, which is directly used for deoxidation treatment, but it produces The impurity left in the finished product is not easy to remove, which seriously affects the quality of the product. Its function is to improve the quality of steel, but its method cannot solve the removal of sulfur in the steelmaking process and cannot improve the quality of steel products. There is an urgent need for a Products and methods for steelmaking deoxidation

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0009] Example 1: Electric converter steelmaking deoxidizer, the weight parts of its raw materials are: 30 parts of calcium carbide, 30 parts of calcium oxide, 3 parts of calcium difluoride, 3 parts of coke, 5 parts of magnesium oxide, 3 parts of zinc oxide, 5 parts of straw ash , 10 parts of kaolin, 3 parts of silicon dioxide, 8 parts of lapis lazuli, 5 parts of attapulgite and 3 parts of barium carbonate.

[0010] The component raw materials are weighed according to the weight portion of the constituent raw materials, and the large granular raw materials are pulverized and ball-milled, and then mixed uniformly to obtain.

[0011] The deoxidizer of the present invention was tested on Q235B steel type in a certain steel factory, and the average value of the detected oxygen content was 49.4PPM.

Embodiment 2

[0012] Example 2: Electric converter steelmaking deoxidizer, the weight parts of its raw materials are: 40 parts of calcium carbide, 40 parts of calcium oxide, 8 parts of calcium difluoride, 8 parts of coke, 10 parts of magnesium oxide, 5 parts of zinc oxide, 10 parts of straw ash , 15 parts of kaolin, 8 parts of silicon dioxide, 12 parts of lapis lazuli, 10 parts of attapulgite and 5 parts of barium carbonate.

[0013] The component raw materials are weighed according to the weight portion of the constituent raw materials, and the large granular raw materials are pulverized and ball-milled, and then mixed uniformly to obtain.

[0014] A steel factory produces 20Mn steel in a 300-ton electric converter. The former deoxidizes with ferroalmanganese, and adds 1 ton to each furnace, 8 tons per ton of steel. With the electric converter steelmaking deoxidizer of the present invention, adds 500 kg to each furnace, and 4 tons per ton of steel , The average oxygen content detected is...

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PUM

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Abstract

The invention discloses a deoxidizing agent for the steelmaking of an electric converter and a preparation method thereof. The deoxidizing agent is obtained by uniformly mixing raw materials according to certain parts by weight, wherein the raw materials are calcium carbide, calcium oxide, calcium difluoride, coke, magnesium oxide, zinc oxide, straw ashes, kaoline, silicone dioxide, celestite, attapulgite and barium carbonate. The deoxidizing agent is used for the steelmaking of the electric converter, does not contain aluminium and can increase the physical, mechanical and processing properties of steel; and simultaneously, the deoxidizing agent can remove gases, changes a nonmetallic inclusion and can increase the quality and the mechanical property of the steel made by the electric converter.

Description

technical field [0001] The invention relates to the technical field of electric converter steelmaking, in particular to an electric converter steelmaking deoxidizer and a preparation method thereof. Background technique [0002] At present, the deoxidizers used in the steelmaking process of the domestic metallurgical industry are mainly aluminum or aluminum alloys. Aluminum or aluminum alloys are directly used for deoxidation treatment, but the impurities produced are not easy to remove in the finished product, which seriously affects the quality of the product. , its role is to improve the quality of steel, but its method can not solve the removal of sulfur in the steelmaking process, can not improve the quality of steel products, an urgent need for a product and method of steelmaking deoxidation. Contents of the invention [0003] In order to alleviate the deficiencies and defects of the prior art, the object of the present invention is to improve a deoxidizer for elect...

Claims

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Application Information

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IPC IPC(8): C21C7/06
Inventor 吴大宏童振兰
Owner 芜湖县天海耐火炉料有限公司
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