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Slag former for smelting nanocrystalline master alloy and slagging process thereof

A technology of slag-forming agent and master alloy, which is applied in the field of nanocrystalline master alloy smelting, can solve problems such as reduction, and achieve the effects of reducing production cost, ensuring apparent quality and performance, and reducing aluminum content

Active Publication Date: 2014-04-23
QINGDAO YUNLU ADVANCED MATERIALS TECH CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] According to the literature, when the ratio of calcium oxide to aluminum oxide is 1.3~2, the slag has the strongest adsorption capacity for aluminum oxide inclusions. However, it has not been found to be effective in the process of smelting nanocrystalline master alloys in the prior art. Reports on slagging agents or slagging processes for reducing aluminum content

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  • Slag former for smelting nanocrystalline master alloy and slagging process thereof

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Embodiment

[0026] The slagging agent for smelting nanocrystalline master alloy provided in this example is composed of two slagging agent systems; the composition and weight content of the first slagging agent system are: CaO 20%-30%, SiO 2 30%-40%, Al 2 o 3 20%-30%, FeO 2%-10%, NaO 2%-10% and unavoidable impurities, the composition and weight content of the second slagging agent system are: CaO 30%-40%, SiO 2 20%-30%, Al 2 o 3 20%-30%, CaF 2 2%-10%, NaO 2%-10% and unavoidable impurities.

[0027] Wherein, the melting point of the first slagging agent system is 1150-1200°C.

[0028] Wherein, the melting point of the second slagging agent system is 1150°C to 1200°C.

[0029] Optimally, the particle size of the slagging agent is less than 1mm.

[0030] The technical scheme of the slagging process using the above-mentioned slagging agent for smelting nanocrystalline master alloy provided in this embodiment is:

[0031] In the master alloy smelting process, it includes a step of...

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Abstract

The invention belongs to the technical field of nanocrystalline master alloy smelting, and in particular relates to a slag former for smelting a nanocrystalline master alloy and a slagging process thereof. The slag former is formed by two slag former systems, respectively, a first slag former system and a second slag former system. The slagging process comprises the steps of slag former preparation and secondary slagging during the smelting of a master alloy. According to the slag former and the slagging process provided by the invention, the content of aluminum in the nanocrystalline master alloy can be effectively decreased.

Description

technical field [0001] The invention belongs to the technical field of nanocrystalline master alloy smelting, and in particular relates to a slagging agent for smelting nanocrystalline master alloy and a slagging process thereof. Background technique [0002] Iron-based nanocrystals are widely used due to their excellent soft magnetic properties. They can be made into magnetic cores for current transformers, precision current transformers, common mode inductors, high-power switching power supplies, inverter power supplies, magnetic amplifiers, filter inductors, Leakage protection switch, high frequency transformer, high frequency converter, high frequency choke coil, etc. The iron-based nanocrystalline alloy is mainly composed of Fe elements, and a small amount of Nb, Cu, Si, and B elements are added to form an alloy. After a rapid solidification process, an amorphous material is formed. The production process is to first remelt the nanocrystalline master alloy, Then the hi...

Claims

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Application Information

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IPC IPC(8): C21C7/04C22C33/04
Inventor 马柯姜桂君陈昌
Owner QINGDAO YUNLU ADVANCED MATERIALS TECH CO LTD
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