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Special intermediate alloy for iron base amorphous nanocrystalline alloy and smelting method thereof

An iron-based amorphous and master alloy technology, applied in the field of metallurgy, can solve the problems of many processes and high power consumption, and achieve the effects of optimizing the melting point of the alloy, improving the production efficiency and uniform distribution of elements

Active Publication Date: 2015-06-24
太原钢铁(集团)有限公司
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Problems solved by technology

When the master alloy is used to prepare amorphous and nanocrystalline strips, the master alloy ingot must be remelted twice, which requires many procedures and high power consumption.

Method used

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  • Special intermediate alloy for iron base amorphous nanocrystalline alloy and smelting method thereof
  • Special intermediate alloy for iron base amorphous nanocrystalline alloy and smelting method thereof
  • Special intermediate alloy for iron base amorphous nanocrystalline alloy and smelting method thereof

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Embodiment Construction

[0033] The embodiment is carried out in a 150kg intermediate frequency induction furnace. The iron material is industrial pure iron, and the rest of the added raw materials include industrial silicon, ferroboron, ferroniobium and pure copper. The chemical composition and addition ratio of each raw material are shown in Table 1. Prepare materials according to the data calculated in Table 1, smelt 5 furnaces of 150 kg iron-based amorphous nano-special master alloy, prepare 10 furnaces of iron-based amorphous nano-crystalline strips, and add iron-based amorphous master alloy ingots required for strip production The ratio with pure iron is shown in Table 2.

[0034] When feeding into the intermediate frequency furnace, first lay the base with industrial pure iron of the given quality in Table 1, then add ferroniobium, industrial silicon, pure copper, and ferroboron in sequence, and the feeding is completed at one time. When smelting, preheat with a power of 10-20KW for 15 minute...

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Abstract

The iron-based amorphous nano master alloy belongs to the field of metallurgy, and its chemical composition mass percentage is: Si is 15.7, B is 3.8, Nb is 11, Cu is 2.4, and the balance is Fe. The smelting method is: add industrial pure iron - ferroniobium - industrial silicon - electrolytic copper boron iron into the intermediate frequency smelting furnace in sequence; (2) preheat with low power first, and then heat with high power; (3) wait After the raw materials are completely melted, carry out alternating stirring with large and small power, and at the same time cooperate with the shaking furnace with medium and small range; when the temperature rises to 1400 ° C, keep it warm for 5 minutes; (4) Finally, slag and tap. The invention solves the problems of burning loss of raw materials, difficulty of melting high-melting point alloys and the like. The amorphous and nanocrystalline strips produced by using the master alloy have multiple advantages such as uniform composition, good toughness, significantly improved magnetic properties, and reduced manufacturing costs.

Description

technical field [0001] The invention belongs to the field of metallurgy, that is, the technical field of smelting master alloys for iron-based amorphous nanocrystalline alloys, and in particular provides a high-concentration ratio iron-based amorphous nano-special master alloy and its smelting method, which is suitable for FeSiBCuNb iron-based Fabrication of master alloys for amorphous and nanocrystalline alloys. Background technique [0002] Iron-based amorphous nanocrystalline alloy is a soft magnetic material composed of 80% Fe and 20% Si, B, Nb, Cu and other elements. It has the characteristics of low iron loss, high saturation magnetic induction and high magnetic permeability. . [0003] The thickness of iron-based amorphous nanocrystalline strip is about 22μm~38μm. It is mainly used as core material for transformers and medium and high frequency transformers. It is also the key to the miniaturization of medium and high frequency electromagnetic components, and has a v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C35/00C22C33/04
Inventor 李博赵伟伟李青杨扬张宇峰赵昱臻申毅
Owner 太原钢铁(集团)有限公司
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