Composite amorphous soft magnetic alloy with excellent alternating current stability

A soft magnetic alloy and stability technology, applied in the direction of magnetic materials, magnetic objects, metal material coating processes, etc., can solve the problems of increasing iron loss and decreasing initial magnetic permeability of soft magnetic alloys, achieving convenient operation and low cost. , the effect of superior high frequency performance

Active Publication Date: 2015-09-16
TIANJIN HAIGANG STEEL SHEET
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Problems solved by technology

However, as the frequency increases, the initial permeability of the soft magnetic alloy decreases rapidly, and the iron loss increases sharply

Method used

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  • Composite amorphous soft magnetic alloy with excellent alternating current stability
  • Composite amorphous soft magnetic alloy with excellent alternating current stability

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Embodiment

[0024] A preparation method of a composite amorphous soft magnetic alloy with excellent AC stability, the composition of the composite amorphous soft magnetic alloy is Fe 38.45 co 38.45 Cu 0.6 Nb 2.5 Si 11 B 9 -Ni 71 P 29 , the preparation steps are as follows:

[0025] 1) Amorphous soft magnetic alloy Fe 38.45 co 38.45 Cu 0.6 Nb 2.5 Si 11 B 9 Preparation of master alloy ingot

[0026] Fe, Co, Cu, Nb, Si, and B raw materials with a purity of 99.95% were selected, and ingredients were prepared according to the mass percentage of the elements, and smelted into a master alloy ingot in a vacuum induction furnace with a weight loss of 4%;

[0027] 2) Preparation of amorphous soft magnetic alloy ribbon

[0028] The melted master alloy is put into the quick quenching equipment by the single-roller melt rotation quick quenching method, and the master alloy ingot is quickly poured onto the high-speed rotating roller after remelting, and the rapidly condensed amorphous sof...

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Abstract

The invention discloses a preparation method of a composite amorphous soft magnetic alloy with excellent (alternating current) AC stability, the composite amorphous soft magnetic alloy composition is Fe38.45Co38.45Cu0.6Nb2.5Si11B9-Ni71P29, and the preparation method is as follows: firstly, an amorphous soft magnetic alloy thin strip is prepared, then a chemical plating nickel phosphorus plating bath is prepared, and the composite amorphous soft magnetic alloy is prepared by chemical deposition method. The advantages are that: the high frequency performance of the composite amorphous soft magnetic alloy made by the chemical deposition method is superior, the relaxation frequency is up to 3.75MHz, the quality factor is 77.5 at 1MHz, the initial magnetic permeability is kept at 7700 basically and constantly in the frequency range of 1kHz-1MHz and under the condition of the magnetic field of 0.05 A / m, and the preparation method is simple in process, easy in operation, low in cost, and suitable for mass production.

Description

technical field [0001] The invention relates to the field of magnetic functional soft magnetic materials, in particular to a composite amorphous soft magnetic alloy with excellent AC stability. Background technique [0002] Soft magnetic alloy is a kind of alloy with high magnetic permeability and low coercive force in weak magnetic field. This kind of alloy is widely used in the radio electronics industry, precision instruments and meters, remote control and automatic control systems. It is mainly used in energy conversion and information processing. It is an important material in the national economy. [0003] With the rapid development of computer, information and electronic technology, some electronic devices working under high frequency conditions urgently need alloys with good soft magnetic properties under high frequency conditions. In addition, energy saving is one of the important issues that people are concerned about in the world today, so it is necessary to rese...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/02H01F1/153C23C18/36
Inventor 丁燕红田瑞洁马叙王晓姹
Owner TIANJIN HAIGANG STEEL SHEET
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