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A kind of soft magnetic material with low niobium content and high saturation magnetic induction and preparation method thereof

A technology of soft magnetic materials and magnetic induction, which is applied in the direction of magnetic materials, magnetic objects, electrical components, etc., can solve the problem of low saturation magnetic induction, and achieve the effects of good soft magnetic properties, excellent smoothness, and good amorphous forming ability

Active Publication Date: 2016-08-03
BGRIMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem that the existing iron-silicon-boron-niobium-copper alloy products have low saturation magnetic induction and contains a relatively large amount of metal element niobium, and further provides a soft magnetic material with low niobium content and high saturation magnetic induction and its Preparation

Method used

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Examples

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Effect test

preparation example Construction

[0013] The specific embodiment of the present invention also provides a method for preparing a soft magnetic material with low niobium content and high saturation magnetic induction, including:

[0014] After preheating the smelting furnace, add a predetermined amount of iron, and heat the iron until it is completely melted and boiled for 5 to 15 minutes;

[0015] adding a predetermined amount of copper, boron, ferric phosphide and niobium into molten iron to form a mixed metal, heating the mixed metal to a molten state and boiling for a predetermined time;

[0016] Pour the mixed metal in the molten state into the cooling tank for rapid cooling to form a master alloy;

[0017] After the master alloy is melted by a strip spraying machine, an amorphous thin strip is obtained by a strip throwing method.

[0018] The preparation method provided in this specific embodiment adopts a single-roll rapid quenching method to prepare the amorphous strip of the alloy. The smelted ingot ...

Embodiment 1

[0022] The preparation method of the iron-based amorphous nanocrystalline alloy strip of the present embodiment comprises the following steps:

[0023] (1) According to the percentage by weight, after preheating the smelting furnace, add 81.55% iron, and heat until the iron is completely melted and boiled for about 10 minutes;

[0024] (2) Add 1.01% copper, 2.14% boron, and 14.94% iron phosphide to the molten iron, heat until the mixed metals are completely melted, and boil for about 15 minutes, so that the added materials are fully fused with the molten iron;

[0025] (3) Add 0.37% niobium to the mixed metal in step (2), heat until completely melted, and boil for about 20 minutes, so that the added material is fully fused with the molten iron;

[0026] (4) Pour the molten mixed metal in step (3) into the cooling tank for rapid cooling to form a master alloy;

[0027] (5) After the master alloy is melted by spraying and standby, the amorphous thin strip is obtained by the str...

Embodiment 2

[0029] The preparation method of the iron-based amorphous nanocrystalline alloy strip of the present embodiment comprises the following steps:

[0030] (1) According to the percentage by weight, after preheating the smelting furnace, add 82.23% iron, and heat until the iron is completely melted and boiled for about 10 minutes;

[0031] (2) Add 1.00% copper, 2.13% boron, and 13.72% iron phosphide to the molten iron, heat until the mixed metals are completely melted, and boil for about 15 minutes to fully integrate the added materials with the molten iron;

[0032] (3) Add 0.92% niobium to the mixed metal in step (2), heat until completely melted, and boil for about 20 minutes, so that the added material is fully fused with the molten iron;

[0033] (4) Pour the molten mixed metal in step (3) into the cooling tank for rapid cooling to form a master alloy;

[0034] (5) After the master alloy is melted by spraying and standby, the amorphous thin strip is obtained by the strip thr...

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Abstract

The invention provides a low-niobium-content highly-saturated-magnetic-induction soft magnetic material and a preparation method thereof. The material is composed of, by weight percentage, 81.55-83.39% of iron, 1.00-1.01% of copper, 0.37-1.82% of niobium, 11.67-14.94% of iron phosphide and 2.12-2.14% of boron. The preparation method includes: preheating a smelting furnace, adding iron in preset amount, heating the iron to be fully melted and boiling for 5-15 minutes; adding the copper, the boron, the iron phosphide and the niobium in preset amount into molten iron in the melted state to form mixed metal, and heating the mixed metal to be in the melted state and boiling for a preset period of time; pouring the mixed metal in the melted state into a cooling tank for quick cooling to form mother alloy; after melting the mother alloy by a ribbon spraying machine, and obtaining an amorphous alloy ribbon through the ribbon casting method. By the low-niobium-content highly-saturated-magnetic-induction soft magnetic material and the preparation method thereof, saturated magnetic induction strength of amorphous nanocrystalline materials is improved, comprehensive magnetic performance of the amorphous nanocrystalline materials is improved, and the magnetic material greatly meets requirements on minimization, energy conservation and high efficiency of electronic devices.

Description

technical field [0001] The invention relates to a soft magnetic material with low niobium content and high saturation magnetic induction and a preparation method thereof, belonging to the technical field of metal magnetic functional materials. Background technique [0002] Iron-based amorphous nanocrystalline alloy is a new type of nanocrystalline soft magnetic alloy developed through crystallization treatment on the basis of amorphous alloys. Now it has formed iron-silicon-boron-niobium-copper series, iron-niobium (tantalum or hafnium) boron, iron-cobalt Niobium (tantalum or hafnium) boron copper and other major series. The outstanding advantage of this type of alloy is that it combines the high magnetic induction of iron-based amorphous alloy with the high magnetic permeability and low iron loss of cobalt-based amorphous alloy, so it can replace cobalt-based amorphous alloy, crystalline permalloy and iron Oxygen has broad application prospects in the fields of high-freque...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/153C22C45/02
Inventor 张泽强连江滨廖有良吕宝顺王倩
Owner BGRIMM TECH CO LTD
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