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Steel making deoxidant-Si-Ba-Sr-Ca-Fe alloy

A deoxidizer and ferroalloy technology, which is applied in the field of steelmaking deoxidizer silicon barium strontium calcium iron alloy, can solve the problems of high labor intensity, failure to achieve deoxidation effect, cumbersome mixed use process, etc., and achieve the effect of strong deoxidation ability in steelmaking

Inactive Publication Date: 2004-01-28
本溪冶炼厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the single use of silicon barium strontium or silicon barium calcium cannot achieve the ideal deoxidation effect and further refinement of grains, and the mixed use process is cumbersome and labor-intensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Adopt the preparation method that the present invention provides, the chemical composition (weight %) of the silicon-barium-strontium-calcium-iron alloy of smelting output is:

[0015] Si 47.3%, Ba 18.8%, Sr 6.1%, Ca 11.3%, and the balance is Fe.

[0016] This embodiment has been tested by a certain steel factory, and has achieved better technical and economic effects.

Embodiment 2

[0018] Adopt the preparation method that the present invention provides, the chemical composition (weight %) of the silicon-barium-strontium-calcium-iron alloy of smelting output is:

[0019] Si 46.9%, Ba 22.6%, Sr 6.7%, Ca 10.6%, and the balance is Fe.

[0020] This embodiment has been tested by a certain steel factory when smelting heavy rail steel, and has achieved better technical and economic results.

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PUM

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Abstract

The present invention relates to a steel-smelting deoxidant Si-Ba-Sr-Ca-Fe alloy, belonging to the field of steel-smelting technology. The composition of said alloy comprises (wt%) 30-60% of Si, 8-28% of Ba, 1-20% of Sr, 1-20% of Ca and the rest is Fe. As compared with existent technology it is strong in deoxidation, can thin crystal grains and raise steel quality.

Description

technical field [0001] The invention relates to a ferroalloy used as a deoxidizer for steelmaking, in particular to a silicon-barium-strontium-calcium-iron alloy used as a deoxidizer for steelmaking, which is a supplement to existing ferroalloy varieties, belongs to the technical field of steelmaking, and is suitable for smelting heavy rails Used for steel and steel requiring low aluminum content. Background technique [0002] At present, pure aluminum and the addition of silicon-barium, silicon-calcium, and silicon-aluminum iron are used for deoxidation of molten steel in steelmaking production. These deoxidizers can no longer adapt to the development of iron and steel enterprises, because pure aluminum and aluminum-containing ferroalloys are not suitable for smelting heavy rails. For steel and steel requiring low aluminum content, it is best to use aluminum-free deoxidizer. Chinese invention patent applications No. 94110231.9 and No. 00136788.9 respectively provide alumin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/06
Inventor 姜殿波
Owner 本溪冶炼厂
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