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Silicon-manganese-barium alloy deoxidier and preparation method thereof

A technology of barium alloy and deoxidizer, applied in the field of steelmaking, can solve problems such as high cost and unsmoothness, and achieve the effects of smooth process, content reduction and steelmaking cost reduction

Active Publication Date: 2013-11-06
包头市固阳县双亿化工有限责任公司
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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-manganese-barium alloy deoxidier and preparation method thereof

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Effect test

Embodiment 1

[0010] Embodiment 1: silicon-manganese-barium alloy deoxidizer, the parts by weight of its composition raw materials are: quartz sand 32, barite 15, kaolinite 18, fly ash 60, waste aluminum powder 12, attapulgite 30, sea foam Stone 22, black manganese ore 22.

[0011] Each raw material is weighed according to the weight of the constituent raw materials, put into a submerged arc furnace for smelting, the smelting temperature is 1900-2100°C, the smelting time is 2-4 hours, crushed to a particle size of 50-80 mm, and impurities are removed, which is the finished product.

[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] % [P]% 0.037-0.031 0.190-0.150

[0015] Deoxygenation result:

[0016] serial number furnace number Addition amount of the present invention (kg) Oxygen content (PPm) 1 2-12807 20 41.04 2 2-12808 20 37.47 3 2-...

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Abstract

The invention discloses a silicon-manganese-barium alloy deoxidier and a preparation method of the silicon-manganese-barium alloy deoxidier. The silicon-manganese-barium alloy deoxidier comprises the following raw materials in parts by weight: 30 to 35 parts of quartz sand, 10 to 20 parts of barite, 15 to 20 parts of kaolinite, 55 to 65 parts of coal ash, 10 to 15 parts of waste aluminum powder, 25 to 35 parts of attapulgite, 20 to 25 parts of sepiolite and 20 to 25 parts of black manganese ore. The silicon-manganese-barium alloy deoxidier has rationality in formula; the coal ash, the waste aluminum powder, the attapulgite, the sepiolite and the black manganese ore are added to the raw materials, thus the cost is low. 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, the service performance and the service life of steel can be improved and prolonged, and the cost of steelmaking can be reduced.

Description

technical field [0001] The invention relates to the technical field of steelmaking, in particular to a silicon-manganese-barium 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-manganese-barium alloy deoxidizer and its preparation method. The formula of the present invention is reasonable, and fly ash, waste aluminum powder and attapulgite are added to the raw materials, so that the deoxidation effect is obvious and can effectively remove the inclusions to improve the fluidity of molten steel. [0004] In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C7/06
Inventor 吴大宏童振兰
Owner 包头市固阳县双亿化工有限责任公司
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