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Low content aluminium silicon cacium barium alloy and its manufacture method

A technology of aluminum-silicon-calcium-barium and alloy, which is applied in the field of silicon-calcium-barium alloy and its preparation, can solve the problems such as no low-alloy production method has been found, and achieve the effect of facilitating denaturation treatment and purifying molten steel

Inactive Publication Date: 2006-05-10
安康市光大铁合金有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No low aluminum alloy and its preparation method were found after searching

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The method that the present invention produces low-aluminum-silicon-calcium-barium alloy is:

[0019] Si

Embodiment 2

[0021] The method that the present invention produces low-aluminum-silicon-calcium-barium alloy is:

[0022] Si

Embodiment 3

[0024] The method that the present invention produces low-aluminum-silicon-calcium-barium alloy is:

[0025] Si

Ca

Ba

AL

S

P

Fe

52

15.1

10.87

0.95

0.048

0.012

margin

[0026] The low-aluminum-silicon-calcium-barium alloy in the present invention refers to an alloy in which the content of aluminum element in the silicon-calcium-barium alloy is lower than 1%.

[0027] The submerged arc furnace used in the embodiment of the preparation method of low aluminum silicon calcium barium of the present invention is a 2000KVA or 3200KVA submerged arc furnace. Before the raw materials are smelted, silica, lime, barite, coke and fluorite are pulverized, and the particle size is 50 -120mm, the particle size of steel scrap crushing is 100-8000mm. During the smelting process, fluorite is added as a slagging agent to reduce the aluminum in the alloy to form slag, reduce the content of elemental aluminum in ...

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Abstract

This invention blongs to the silicon calcium barium alloy used in steel liquid deoxidizing and its making method, wherein the aluminimum content in the alloy is low. This alloy uses silica, lime, barites, burnt carbon containing C higher than 80%, fluorite and steel bits as raw materials, then adds these materials to the mine heat furnace to smelt with matching mix method, wherein the content of the silicon calcium barium alloy with low aluminium as follows:Siú¢50-65úÑ, Caú¢8-16úÑ, Baú¢10-16úÑ, Alú¢0.5-1úÑ, Síœ0.05úÑ, Píœ0.05úÑ, Fe surplus. The content of the aluminium in this invention is under 1%, and when using deoxidier to oxidize the steel liquid of the heavy steel, the aluminium contemn in the acid solution can be controlled under 0.004úÑú¼and the composite lard substances with low melting point can go up on the steel solution to be easy to wipe off, which plays a role of purifying steel liquid.

Description

technical field [0001] The invention belongs to a silicon-calcium-barium alloy used for final deoxidation of molten steel and a preparation method thereof, in particular to a low-aluminum silicon-calcium-barium alloy and a preparation method thereof. Background technique [0002] At present, in iron alloy deoxidizers, aluminum elements are contained in different degrees, such as silicon-calcium-barium alloy deoxidizers contain aluminum elements. When smelting silicon-calcium-barium alloy deoxidizer, since the raw materials contain Al 2 o 3 , the melting point of aluminum is low, and it is more active than silicon, calcium, barium and other elements, so that the aluminum content in the alloy is generally above 2%. The aluminum element itself plays a role in deoxidizing and removing slag from the molten steel. However, when the alloy deoxidizer with high aluminum content is used for deoxidation in the smelting of heavy rail steel, the content of acid-soluble aluminum in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/06C22C1/02
Inventor 熊光义
Owner 安康市光大铁合金有限公司
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