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Method for preparing iron and nickel based soft magnetic material

A soft magnetic material, iron-nickel-based technology, applied in the field of preparation of iron-nickel-based soft magnetic materials, can solve the problems of insufficient wear resistance and corrosion resistance, and achieve improved wear resistance and anti-magnetic saturation performance, low loss, The effect of good soft magnetic properties

Active Publication Date: 2014-07-16
邯郸市峰峰博达磁州窑陶艺有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current Ni-Fe soft magnetic materials have insufficient wear resistance and corrosion resistance. Adding rare earth materials to them is a research hotspot to solve the wear resistance and corrosion resistance problems.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The iron-nickel base soft magnetic material of the present embodiment is made of the alloy of following atomic ratio: (Ni 0.6 Fe 0.3 co 0.1 ) 0.79 (Si 0.55 mn 0.45 ) 0.15 (La 0.67 SM 0.33 ) 0.03 Mo 0.03 .

[0019] Raw materials are prepared according to the above-mentioned atomic proportions, wherein the purity of all metal raw materials is greater than 99.9%, silicon is compounded in the form of silicon-manganese alloy, and La and Sm are compounded in the form of lanthanum-samarium alloy.

[0020] The raw materials are mixed and melted in a magnetic levitation melting furnace. The melting is carried out under vacuum, and the melting vacuum is 1×10 -4 Pa, smelting temperature 1560°C, repeated smelting 5 times, magnetically stirred for 3 minutes each time, poured into water-cooled copper molds after smelting to obtain alloy ingots.

[0021] The above alloy ingots are hot-rolled at a rolling temperature of 1200°C. The specific method is as follows: a heating fu...

Embodiment 2

[0024] The iron-nickel base soft magnetic material of the present embodiment is made of the alloy of following atomic ratio: (Ni 0.35 Fe 0.45 co 0.2 ) 0.71 (Si 1-z mn z ) 0.2 (La 0.33 SM 0.67 ) 0.05 Mo 0.04 .

[0025] Raw materials are prepared according to the above-mentioned atomic proportions, wherein the purity of all metal raw materials is greater than 99.9%, silicon is compounded in the form of silicon-manganese alloy, and La and Sm are compounded in the form of lanthanum-samarium alloy.

[0026] The raw materials are mixed and melted in a magnetic levitation melting furnace. The melting is carried out under vacuum, and the melting vacuum is 1×10 -3 Pa, smelting temperature 1620°C, repeated smelting 3 times, magnetically stirred for 1 min each time, poured into a water-cooled copper mold after smelting to obtain an alloy ingot.

[0027] The above alloy ingots are hot-rolled at a rolling temperature of 1250°C. The specific method is as follows: a heating furnac...

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PUM

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Abstract

The invention relates to a method for preparing an iron and nickel based soft magnetic material. The method is characterized in that the iron and nickel based soft magnetic material is made of (Ni1-x-yFexCoy)1-a-b-c(Si1-zMnz)a(La1-wSmw)bMoc according to the atomic ratio, wherein w ranges from 0.33 to 0.67, x ranges from 0.3 to 0.45, y ranges from 0.15 to 0.2, z ranges from 0.45 to 0.55, a ranges from 0.15 to 0.2, b ranges from 0.03 to 0.05, and c ranges from 0.03 to 0.04. The method comprises the following steps of (1) batching, (2) smelting and ingot making, (3) hot rolling and cold rolling, and (4) heat treatment. According to the iron and nickel based soft magnetic material, Fe, Ni and Co are matched to form main materials, so that soft magnetic properties of the iron and nickel based soft magnetic material are improved; La and Sm are added, so that abrasion resistance and magnetic saturation resistance of the iron and nickel based soft magnetic material are enhanced; Si and Mo are added, so that resistivity and corrosion resistance of the iron and nickel based soft magnetic material are enhanced. Thus, the iron and nickel based soft magnetic material has good soft magnetic properties and low loss when used for various types of equipment and particularly when used in environments of damp, high temperature, high mechanical strength and the like.

Description

Technical field [0001] The invention relates to a preparation method of an iron-nickel-based soft magnetic material. Background technique [0002] Soft magnetic alloys belong to the category of precision alloys and are widely used in energy, transportation, environmental protection and other fields. Due to their low coercive force and high magnetic permeability properties, they are often used to make magnetic conductors, magnetic shields, rotors and stators of motors, and transformers And the iron core of the relay and the magnetic components in various communication, sensing, recording and other projects. At present, nickel-iron alloy (permalloy) has become the alloy series with the most varieties and the most complete specifications among soft magnetic alloys, and plays an important role in various industries, especially in the electronics industry. [0003] Ni-Fe alloy is an important metal soft magnetic material. Due to its high magnetic permeability, low coercivity, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/147C22C1/03C22F1/00C22F1/10
Inventor 周末
Owner 邯郸市峰峰博达磁州窑陶艺有限公司