Magnetic sensing composite material of inorganic material layer and amorphous soft magnetic core and preparation method thereof

A technology of inorganic material layer and composite material, applied in metal material coating process, magnetic material, coating, etc., can solve the problems of damaged wire material and difficult control of internal stress uniformity, achieve optimized performance, facilitate industrial production, The effect of low raw material cost

Inactive Publication Date: 2013-07-31
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, drawing the amorphous wire will damage the wire material, and the uniformity of internal stress is not easy to control

Method used

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  • Magnetic sensing composite material of inorganic material layer and amorphous soft magnetic core and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016]1. Preparation of amorphous soft magnetic core: take the following raw materials in weight percentage: Si 4%, Zr 7%, Nd 1%, Ce 0.1%, B 6%, Cr 1%, Ni 2%, Co 4%, the rest Dosing for Fe; the purity of the raw materials Si, Zr, Nd, Ce, Cr, Ni, Co, Fe is greater than 99.9%, wherein, B is added in the form of an iron-boron master alloy, and the weight percentage of B in the iron-boron master alloy The content is 20%; the raw material is melted in a vacuum induction furnace at a melting temperature of 1590°C to obtain a master alloy; the master alloy is remelted in a remelting tubular crucible in a vacuum induction quenching furnace, and the remelting temperature is The temperature is 1560°C; the bottom of the remelting tubular crucible is placed 1-3mm above the rim of the runner of the quenching furnace; after the master alloy is placed in the tubular crucible and melted, the diameter Extrusion in the hole of 1mm contacts with the edge of the rotating runner, the rotating spee...

Embodiment 2

[0020] 1. Preparation of amorphous soft magnetic core: take the following raw materials in weight percentage: Si 6%, Zr 9%, Nd 3%, Ce 0.2%, B 9%, Cr 3%, Ni 5%, Co 6%, the rest Dosing for Fe; the purity of the raw materials Si, Zr, Nd, Ce, Cr, Ni, Co, Fe is greater than 99.9%, wherein, B is added in the form of an iron-boron master alloy, and the weight percentage of B in the iron-boron master alloy The content is 20%; the raw materials are put into the vacuum induction furnace for melting, and the melting temperature is 1620°C to obtain the master alloy; the master alloy is put into the remelting tubular crucible in the vacuum induction quenching furnace for remelting, and the remelting temperature is The temperature is 1580°C; the bottom of the remelting tubular crucible is placed 1-3mm above the rim of the runner of the quick quenching furnace; after the master alloy is placed in the tubular crucible and melted, the diameter Extrusion in the hole of 1mm contacts with the edg...

Embodiment 3

[0024] 1. Preparation of amorphous soft magnetic core: take the following raw materials in weight percentage: Si 5%, Zr 8%, Nd 2%, Ce 0.15%, B 7%, Cr 1.5%, Ni 3%, Co 5%, the rest Dosing for Fe; the purity of the raw materials Si, Zr, Nd, Ce, Cr, Ni, Co, Fe is greater than 99.9%, wherein, B is added in the form of an iron-boron master alloy, and the weight percentage of B in the iron-boron master alloy The content is 20%; the raw material is melted in a vacuum induction furnace at a melting temperature of 1600°C to obtain a master alloy; the master alloy is remelted in a remelting tubular crucible in a vacuum induction quenching furnace, and the remelting temperature is The temperature is 1570°C; the bottom of the remelting tubular crucible is placed 1-3mm above the rim of the runner of the quick quenching furnace; after the master alloy is placed in the tubular crucible and melted, the diameter Extrusion in the hole of 1mm contacts with the edge of the rotating runner, the rot...

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Abstract

The invention discloses a magnetic sensing composite material of an inorganic material layer and an amorphous soft magnetic core and a preparation method thereof. The magnetic sensing composite material comprises a soft magnetic core and a coating which is coated on the soft magnetic core; the soft magnetic core is prepared from the following components in percentage by weight: 4 to 6 percent of Si, 7 to 9 percent of Zr, 1 to 3 percent of Nd, 0.1 to 0.2 percent of Ce, 6 to 9 percent of B, 1 to 3 percent of Cr, 2 to 5 percent of Ni, 4 to 6 percent of Co and the balance of Fe; and the coating is prepared from TiO2, SiO2, MgO.Al2O3, Y2O3, ZrO2, NaO2 and sol, wherein the weight ratio of the TiO2, SiO2, MgO.Al2O3, Y2O3, ZrO2 and NaO2 to sol is 0.5:1:1:0.03:0.5:3.5 to 4:0.5 to 1. The prepared magnetic sensing composite material has low attenuation coefficient of magnetoelastic waves, low raw material cost, short production cycle and simple and convenient preparation process.

Description

technical field [0001] The invention relates to a magnetic sensitive composite material, in particular to a magnetic sensitive composite material with an inorganic material coating and an amorphous soft magnetic core and a preparation method thereof. Background technique [0002] Patent CN200610167402.6 discloses a magnetoelastic amorphous alloy material and its preparation method, which consists of Fe x Re y Si z B m Composition, wherein Re is one or more of La, Sm, Tb, Dy, Y, x, y, z, m are expressed in atomic percentage, and the composition satisfies: Fe 80-x-y La x Si y B 20 (x=1-15at%, y=1-12.5at%); Fe 80-x-y SM x Si y B 20 (x=1-15at%, y=1-12.5at%); Fe 80-x-y Tb x Si y B 20 (x=1-15at%, y=1-12.5at%); Fe 80-x-y Dy x Si y B 20 (x=1-15at%, y=1-12.5at%); Fe 80-x-y Y x Si y B 20 (x=1-15at%, y=1-12.5at%); Fe 80-x-y (Tb 100-z Dy z ) x Si y B 20 (x=1-15at%, y=1-12.5at%, z=1-85at%); Fe 80-x-y (Tb 100-z Y z ) x Si y B 20 (x=1-15at%, y=1-12.5at%, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/153C23C14/06C22C30/00C22C33/06
Inventor 王玲赵浩峰张群顾小祥王倩范乐张海斌
Owner NANJING UNIV OF INFORMATION SCI & TECH
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