Silicon-barium-aluminum alloy deoxidier and preparation method thereof

A technology of aluminum alloy and deoxidizer, which is applied in the field of steelmaking, can solve the problems of high cost and unsmoothness, and achieve the effects of smooth process, reduced content, and improved fluidity of molten steel

Active Publication Date: 2012-10-31
西峡县耀辉冶金材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the deoxidizers used in the domestic industrial steelmaking production process are mainly calcium, aluminum or iron alloys, etc. The deoxidation effect has always reached the level of 60-100PPM, and the effect is average. Observe that there are large bubbles and slag inclusions in the section of the billet, and the cost is high

Method used

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  • Silicon-barium-aluminum alloy deoxidier and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0010] Embodiment 1: silicon barium aluminum alloy deoxidizer, the parts by weight of its composition raw material are: barite 22, quartz sand 52, siliceous shale 38, dolomite 12, bauxite 12, table salt 4, vermiculite 35, Sepiolite 22, attapulgite 8.

[0011] The raw materials are weighed according to the weight of the raw materials, put into the submerged arc furnace for smelting, the smelting temperature is 2200-2500°C, the smelting time is 2-3 hours, and the finished product is crushed to the particle size requirement: 5-80mm.

[0012] The following is the deoxidation test, the test steel is low carbon steel, used on the 2# furnace

[0013] Hot metal conditions:

[0014] [S]S% [P]% 0.038-0.032 0.190-0.155

[0015] Deoxygenation result:

[0016] serial number furnace number Addition amount of the present invention (kg) Oxygen content (PPm) 1 2-12807 20 39.25 2 2-12808 20 43.56 3 2-12809 20 39.35 4 2-12810 20 3...

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Abstract

The invention discloses a silicon-barium-aluminum alloy deoxidier and a preparation method of the silicon-barium-aluminum alloy deoxidier. The silicon-barium-aluminum alloy deoxidier comprises the following raw materials in parts by weight: 20 to 25 parts of barite, 50 to 55 parts of quartz sand, 35 to 40 parts of siliceous shale, 10 to 15 parts of dolomite, 10 to 15 parts of bauxite, 3 to 5 parts of table salt, 30 to 40 parts of vermiculite, 20 to 25 parts of sepiolite and 5 to 10 parts of attapulgite. The deoxidier has good effect on deoxidizing; with the adoption of the deoxidier, the contents of nonmetal impurities in the steel can be reduced, the form of the impurities can be changed, the molten steel can be purified, the liquidity of the molten steel can be improved, the molten steel is smooth in continuous casting; and the continuous casting water ports are out of nodules, thus the continuous casting can be smoothly carried out, and the service performance and the service life of steel can be improved and prolonged.

Description

technical field [0001] The invention relates to the technical field of steelmaking, in particular to a silicon barium aluminum alloy deoxidizer and a preparation method thereof. Background technique [0002] At present, the deoxidizers used in the domestic industrial steelmaking production process are mainly calcium, aluminum or iron alloys, etc. The deoxidation effect has always reached the level of 60-100PPM, and the effect is average. It is observed that there are large bubbles and slag inclusions in the section of the slab, and the cost is high. Contents of the invention [0003] The object of the present invention is to provide a silicon-barium-aluminum alloy deoxidizer and a preparation method thereof. Using the deoxidizer has a good deoxidation effect, can reduce the content of non-metallic inclusions in steel and change the shape of inclusions, and purify molten steel. Improving the fluidity of molten steel is conducive to the smooth production of smelting and cas...

Claims

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Application Information

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IPC IPC(8): C21C7/06
Inventor吴大宏童振兰
Owner西峡县耀辉冶金材料有限公司