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

An iron-based amorphous and intermediate alloy technology, applied in the field of metallurgy, can solve problems such as numerous processes and high power consumption, and achieve the effects of optimizing alloy melting point, improving production efficiency, and reducing smelting temperature

Active Publication Date: 2014-01-22
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

Special intermediate alloy for iron base amorphous nanocrystalline alloy belongs to the field of metallurgy. The alloy comprises the following chemical components: 15.7 wt% of Si, 3.8 wt% of B, 11 wt% of Nb, 2.4 wt% of Cu and the balance of Fe. A smelting method is as below: successively adding industrial pure iron, niobium iron, industrial silicon and electrolytic copper ferroboron into an intermediate frequency smelting furnace; (2) preheating with a small power and heating with high power; (3) completely fusing the raw materials, stirring alternatively with high and low power, at the same time carrying out furnace rocking with small to middle amplitude; and heating to 1400 DEG C and insulating for 5 min; and (4) finally carrying out dedrossing and tapping. The invention solves the problems of raw material burning loss and hard fusion of high-melting-point alloy. The amorphous nanocrystalline alloy strip produced from the intermediate alloy has multiple advantages including uniform composition, good toughness, significantly improved magnetic property and the reduced manufacturing cost.

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 Applications(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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