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Calcium deoxidizer beneficial to industrial production and preparation method thereof

A deoxidizer, calcium-based technology, applied in the field of deoxidizers for steelmaking, can solve problems such as unsmooth, high cost, and general effect, and achieve the effects of removing inclusions, small fluctuations, and preventing nodules

Inactive Publication Date: 2015-07-15
芜湖华炀炉料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

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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Embodiment Construction

[0013] specific implementation plan

[0014] The present invention will be described in detail below through specific examples.

[0015] A calcium-based deoxidizer beneficial to industrial production, prepared from the following raw materials in parts by weight (kg): calcium silicide 35, charcoal 2, silicon carbide 12, fly ash 3, calcite 2, hydrochloric acid with a concentration of 5% 40 , hydroxypropyl methylcellulose 4;

[0016] A kind of calcium deoxidizer that is beneficial to industrial production described in the present invention is made by following specific steps:

[0017] (1) Put calcium silicide, silicon carbide, and fly ash into a pulverizer and pulverize them into 200-mesh powder to form a mixed powder, then mix hydroxypropyl methylcellulose with 2 times the amount of cold water, and stir until uniformly dispersed. Formation of a clear colloidal solution;

[0018] (2) Break calcite and charcoal into small pieces first, then put them into a pulverizer and pulver...

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PUM

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Abstract

The invention discloses a calcium deoxidizer beneficial to industrial production. The calcium deoxidizer is characterized by being prepared from the following raw materials by weight part: 35-38 of calcium silicide, 2-3 of charcoal, 12-15 of silicon carbide, 3-5 of fly ash, 2-3 of calcite, 40-50 of 5% hydrochloric acid, and 4-5 of hydroxypropyl methyl cellulose. The calcium deoxidizer provided by the invention has scientific and reasonable proportion, and the process is convenient for industrial control and saves energy. During use of the calcium deoxidier, the alloy composition is stable and has small fluctuation, no air hole is found in a casting blank, during continuous casting ladle sampling, the molten steel in a mode is calm and does not rise, and the deoxidation effect is good. At the same time, the calcium deoxidizer can improve molten steel fluidity, effectively remove inclusions in steel, improve molten steel purity, and prevent tundish nozzle clogging, is feasible in production, and can achieve good economic benefits.

Description

technical field [0001] The invention relates to the technical field of deoxidizers for steelmaking, in particular to a calcium-based deoxidizer beneficial to industrial production and a preparation method thereof. Background technique [0002] With economic development and scientific and technological progress, the demand for steel is increasing in industry and daily life, and the requirements for steel quality are also getting higher and higher. Therefore, in addition to increasing the improvement of steelmaking equipment and the innovation of production technology, it is also very important to strengthen the research and development of deoxidized alloys for steelmaking materials. The quality and performance of the final steel are directly affected by the level of oxygen content in the steel. High oxygen content will cause the carbon and oxygen to oxidize again during the condensation process of molten steel, which will cause bubbles in the steel and affect the quality of ...

Claims

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Application Information

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IPC IPC(8): C21C7/06
Inventor 吴大宏童振兰
Owner 芜湖华炀炉料科技有限公司
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