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Soft magnetic amorphous alloy wire and preparation method thereof

A technology of amorphous alloy and alloy wire, applied in the direction of magnetic materials, magnetic objects, electrical components, etc., can solve the problems of low cost, increased cost of alloy wire, controllability limit of supercooling speed, etc.

Inactive Publication Date: 2009-11-04
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of the main elements selected for this alloy is low, but the preparation method still uses a spray casting device, the cooling rate of the alloy depends on the cooling liquid, and the controllability of the supercooling rate is limited
To improve the magnetoelastic performance of the wire, cold processing is required, which increases the cost of the alloy wire

Method used

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  • Soft magnetic amorphous alloy wire and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The preparation method of soft magnetic amorphous alloy wire of the present invention:

[0020] The content by weight percentage is: 2% Zr, 2% Cu, 0.05% Pr, 0.01% Ce, 4% B, 3% Al, 2% P, 1% Si, the rest is Fe for batching, Fe, Al in raw materials , Cu, B, Pr, Ce, Si, Zr have a purity greater than 99.9%, P is added in the form of an iron-phosphorus master alloy, and the weight percentage of P in the iron-phosphorus master alloy is 18%; the raw materials are put into a vacuum induction furnace Melting, the melting temperature is 1600°C to obtain the master alloy, and then put it into the remelting tubular crucible in the vacuum induction quenching furnace for remelting, the remelting temperature is 1500°C and the top of the remelting tubular crucible is placed in the rapid quenching furnace At 2-4mm below the rim of the runner, a refractory plunger that can form the bottom of the tubular crucible can be placed in the tubular crucible by controlling the up and down movement...

Embodiment 2

[0022] The preparation method of soft magnetic amorphous alloy wire of the present invention:

[0023] The content by weight percentage is: 6% Zr, 4% Cu, 0.1% Pr, 0.05% Ce, 8% B, 6% Al, 5% P, 3% Si, and the rest is Fe for batching, and its preparation process is the same as the implementation example one.

Embodiment 3

[0025] The preparation method of soft magnetic amorphous alloy wire of the present invention:

[0026] The content by weight percentage is: 3% Zr, 3% Cu, 0.1% Pr, 0.01% Ce, 4% B, 4% Al, 4% P, 2% Si, and the rest is Fe for batching, and its preparation process is the same as the implementation example one.

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Abstract

The invention provides an Fe-based soft magnetic amorphous alloy wire with good magnetic property and low cost. The amorphous alloy wire is made of common raw materials, and alloy has low cost. The invention also provides a method for preparing the soft magnetic amorphous alloy wire. The method has simple processing equipment and convenient operation. The soft magnetic amorphous alloy wire comprises the following components in percentage by weight: 2 to 6 percent of Zr, 2 to 4 percent of Cu, 0.05 to 0.1 percent of Pr, 0.01 to 0.05 percent of Ce, 4 to 8 percent of B, 1 to 3 percent of Si, 3 to 6 percent of Al, 2 to 5 percent of P and the balance of Fe. The diameter of the alloy wire is between 5 and 100 mu m.

Description

1. Technical field [0001] The invention relates to a soft magnetic amorphous alloy wire with good magnetic properties and a preparation method of the amorphous alloy wire, belonging to the technical field of magnetic materials. 2. Background technology [0002] At present, soft magnetic amorphous wire is one of the research hotspots in the field of magnetic sensors in recent years. [0003] No. 96107506.6 patent application proposes an alloy filament, containing its alloy composition: TwSiaBbCcRedMeM', wherein: w+a+b+c+d+e+f=100%, 0<a<15%, 0<b< 25%, 0<a+b<35%, 0<c<2%; T is one or more transition metals: Fe, Co, Ni; W=1-a-b-c-d-e-f; Re is one or more rare earths Metal: La, Ce, Nd, Sm, Tb, Dy, 0.01<d<70%; Me is Nb or y, where 0.005<e<60%; M' is one or more of the following metals: Cu, Zn, V, Ti, Cv, Mn and Al, where 0<f<65%. Using a spray casting device, a stream of molten metal is sprayed by air pressure into a rotating cooling liq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/153C22C45/02C22C33/06C22B9/16
Inventor 赵浩峰王玲朱学进王畅易亮
Owner NANJING UNIV OF INFORMATION SCI & TECH
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