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Silicon-manganese-carbon alloy ball and preparation process thereof

A silicon-manganese-carbon alloy and preparation technology, which is applied in the field of steelmaking, can solve problems affecting the life of the furnace body, etc., and achieve the effect of increasing carbon supplementation and uniform carbon content

Pending Publication Date: 2021-10-08
芜湖县天海耐火炉料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of silicomanganese carbon alloy ball and preparation technology thereof, to solve the fluorine that the existing rock plays a role in the above-mentioned background technology to directly react with the scale on the furnace wall, but simultaneously Under the circumstances, fluorine reacts with the furnace wall to obtain FeF 3， Technical problems that affect the life of the furnace body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1, a silicon-manganese-carbon alloy ball and its preparation process, the components and composition ratios are: each component is 25% of silicon powder, 35% of manganese powder, 15% of carbon powder, 25% of graphite powder, and 0.25% of phosphorus , S: 0.05%.

Embodiment 2

[0021] Example 2, a silicon-manganese-carbon alloy ball and its preparation process, the components and composition ratios are: each component is 20% of silicon powder, 30% of manganese powder, 25% of carbon powder, 20% of graphite powder, and 0.25% of phosphorus , S: 0.05%.

[0022] Embodiment 2, a silicon-manganese-carbon alloy ball and its preparation process, including the following preparation steps:

[0023] S1 material retrieving: weighing silicon, manganese, carbon, graphite, phosphorus corresponding to the weight;

[0024] S2 Grinding: Use the grinding device to grind silicon, manganese, carbon, sulfur, and phosphorus into fine powder. The particle diameter of silicon powder, manganese powder, carbon powder, graphite powder, phosphorus powder and sulfur powder after grinding is between 1mm and 3mm;

[0025] S3 mixing: silicon powder, manganese powder, carbon powder, graphite powder, phosphorus powder and sulfur powder that step S2 is obtained carry out corresponding ...

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Abstract

The invention provides a silicon-manganese-carbon alloy ball and a preparation process thereof. The silicon-manganese-carbon alloy ball comprises the following components in percentages by weight: 13%-17% of silicon powder, 50%-58% of manganese powder, 10%-15% of carbon powder, 25%-35% of graphite powder, 0.1%-0.25% of phosphorus and 0.05%-0.1% of sulfur. According to the silicon-manganese-carbon alloy ball and the preparation process thereof, the silicon powder, the manganese powder and the carbon powder are stirred and mixed under the doping of the graphite powder, and then the alloy ball is formed through compression molding, so that the carbon content is more uniform during use, and meanwhile, carbon and manganese are more easily supplemented.

Description

technical field [0001] The invention relates to the technical field of steelmaking, and mainly relates to a silicon-manganese-carbon alloy ball and a preparation process thereof. Background technique [0002] When steel-making converters smelt medium and high-carbon steels, it is generally used to add alloys and recarburizers during the tapping process with the steel flow or at the bottom of the ladle to complete the carburization and deoxidation alloying tasks. This method brings many disadvantages. First of all, because the recarburizer is granular, when the recarburizer has a large particle size, it floats on the liquid steel surface, and the carbon recovery rate is low, generally 80-90%, and the particle size is small, and it is easy to oxidize. , the carbon increase is unstable, and the addition amount is large, the cost is high, and the working conditions are deteriorated; [0003] Secondly, the granular recarburizer is likely to cause violent boiling of the molten st...

Claims

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Application Information

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IPC IPC(8): C21C7/00
CPCC21C7/0025C21C7/0006
Inventor 童振兰吴大宏
Owner 芜湖县天海耐火炉料有限公司
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