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Smelting method of calcium-silicon alloy

A technology of silicon-calcium alloy and smelting method, which is applied in the field of metallurgy, can solve the problems of low product quality, high energy consumption, and small carbon dioxide emissions, and achieve the effects of reduced impurity content, high quality, and increased silicon-calcium content

Inactive Publication Date: 2011-03-09
ANYANG CITY XINYI ALLOY
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  • Abstract
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Problems solved by technology

[0005] In order to solve the problems of large carbon dioxide emissions, high energy consumption, and low quality of finished products in the existing silicon-calcium alloy production process, the purpose of the present invention is to provide a method for smelting silicon-calcium alloys, which has small carbon dioxide emissions and low energy consumption during the smelting process. Low, high quality finished product

Method used

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Embodiment Construction

[0015] The present invention will be schematically described below in conjunction with specific examples, and the examples and related descriptions are used to explain the present invention, but not as a limitation to the present invention.

[0016] The invention discloses a method for smelting calcium-silicon alloy. Raw materials such as ferrosilicon, calcium metal and silicon metal scraps are put into an intermediate frequency furnace and smelted at 1250-1350 DEG C to prepare the calcium-silicon alloy.

[0017] Before production and processing, the required quantity and ratio of the three raw materials can be calculated according to the content requirements of silicon and calcium in the finished silicon-calcium alloy, and then according to the silicon content in the selected ferrosilicon raw material.

[0018] It should be noted that since the silicon content of different grades of ferrosilicon varies greatly, if ferrosilicon with higher silicon content is used, such as FeSi9...

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Abstract

The invention belongs to the technical field of metallurgy, in particular relates to a smelting method of calcium-silicon alloy, comprising the steps of putting the raw materials of ferrosilicon, metallic calcium and crushed aggregates of metallic silicon into an intermediate frequency furnace, and smelting under the temperature of 1250 to 1350 DEG C to obtain the calcium-silicon alloy. Compared with the traditional method, in the invention, the different raw materials and devices are used, thus the carbon dioxide discharge is extremely low during the smelting process, the power consumption is far lower than that of other smelting methods, but the quality is higher. As a result, the smelting method of calcium-silicon alloy achieves the effects of energy conservation and emission reduction, and enhances the product quality of the calcium-silicon alloy.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and in particular relates to a method for smelting a silicon-calcium alloy. Background technique [0002] Silicon-calcium alloy is a composite alloy composed of elements silicon, calcium and iron. It is an ideal composite deoxidizer and desulfurizer. It is widely used in the production of high-quality steel, low-carbon steel, stainless steel and other special alloys such as nickel-based alloys and titanium-based alloys; it is also suitable as a warming agent for converter steelmaking workshops; it can also be used as an inoculant for cast iron and additives in the production of ductile iron. [0003] At present, most of the production of silicon-calcium metals is based on submerged arc furnaces as reduction equipment. Calcium-based materials, silicon dioxide materials, and carbon-based materials are produced by high-temperature reduction smelting processes and mixed smelting processes at 1800...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C24/00C21C7/06C21C7/064
Inventor 郑秀斌
Owner ANYANG CITY XINYI ALLOY
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