Silicon-manganese-iron alloy

A silicon-manganese ferroalloy and weight percent technology, applied in the field of ferroalloys, can solve the problems of reducing the plasticity and toughness of steel, and achieve the effects of reducing the silicon content, increasing the manganese content, and removing the oxygen content

Inactive Publication Date: 2015-05-20
铜陵百荣木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a silicon-manganese ferroalloy, which has a good deoxidation effect and can avoid the problem that the plasticity and toughness of steel are reduced by excessive silicon content

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A silico-manganese ferroalloy, the components and the weight percentages of each component are: 22% silicon; 65% manganese; 0.5% carbon; 0.1% inevitable impurities; and iron balance. In the process of producing low-carbon and low-silicon steel, the silico-manganese-iron alloy of Example 1 is added. After testing, the dissolved oxygen content in the ladle is 85-100 ppm.

Embodiment 2

[0026] A silico-manganese ferroalloy, the components and the weight percentages of each component are: 30% silicon; 50% manganese; 0.3% carbon; 0.05% of inevitable impurities; iron balance. In the process of producing low-carbon and low-silicon steel, the silico-manganese-iron alloy of Example 2 is added. After testing, the dissolved oxygen content in the ladle is 15-35 ppm.

Embodiment 3

[0028] A silico-manganese ferroalloy, the components and the weight percentage of each component are as follows: silicon 35%; manganese 40%; carbon 0.6%; inevitable impurities 0.15%; iron balance. In the process of producing low-carbon and low-silicon steel, the silico-manganese-iron alloy of Example 3 is added. After testing, the dissolved oxygen content in the ladle is 100-110 ppm.

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Abstract

The invention discloses a silicon-manganese-iron alloy. The silicon-manganese-iron alloy comprises the following components in percentages by weight: 22-35% of silicon, 18-65% of manganese, less than or equal to 2% of carbon, less than or equal to 0.6% of unavoidable impurities and the balance of iron. The silicon-manganese-iron alloy disclosed by the invention is lower in silicon content and higher in manganese content, so as to increase manganese content in molten steel during low-carbon steel smelting process to effectively reduce oxygen content in steel. The silicon-manganese-iron alloy is good in deoxidization effect and is capable of avoiding problems of reduced plasticity and ductility of steel caused by excessive silicon content.

Description

Technical field [0001] The invention relates to the technical field of ferroalloys, in particular to a ferrosilicon-manganese alloy. Background technique [0002] In the process of converter smelting low-silicon low-carbon steel, the molten steel needs to be deoxidized and alloyed so that the mass percentage of each chemical component in the molten steel meets the corresponding requirements. Silicon is the most basic deoxidizer in steel. When smelting ordinary steel, silicon is usually used as a deoxidizer. However, excessive silicon content will reduce the plasticity and toughness of steel and is not suitable for smelting low carbon steel. Summary of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a silico-manganese iron alloy with good deoxidation effect and avoiding the problem of excessive silicon content reducing the plasticity and toughness of steel. [0004] In order to achieve the above objectives, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/04C22C38/02C22C33/06
CPCC22C38/02C22C22/00C22C30/00C22C35/005C22C38/04
Inventor 梅百荣
Owner 铜陵百荣木业有限公司
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