Alloy soft magnet for inductor and fabrication method of alloy soft magnet

A soft magnet and inductor technology, applied in the manufacture of inductors/transformers/magnets, circuits, electrical components, etc., can solve the problems of difficulty in meeting the working requirements of inductors, uneven density of soft magnets, poor integrity of soft magnets, etc. Improved magnetization, improved alloy stability, and high integrity

Inactive Publication Date: 2019-05-14
贵州博裕电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] It is rumored that soft magnets are often used in the manufacturing process of inductors. At present, the soft magnets used in inductors are usually pressed by using magnetic powder through molds. They need to be pressed by a super-large tonnage press, and the shape is difficult to adjust. The density of the soft magnets is uneven. Not only is the production more cumbersome, but the integrity of the soft magnet is poor, and it is difficult to meet the working requirements of the inductor. Usually, the magnetism is poor, the magnetic endurance is weak, and it is easy to demagnetize, which makes the inductor unable to work. Therefore, it is necessary to develop a magnet with strong magnetism. Endurance and high integrity soft magnets are of great significance for inductor applications

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1. An alloy soft magnet for inductors, the alloy soft magnet is made of the following raw materials in parts by weight: 50 parts of iron, 10 parts of iron oxide, 1 part of tellurium, 1 part of ytterbium oxide, 25 parts of nickel, 1 part of lutetium, and 1 part of cobalt 1 part, 1 part strontium, 1 part silicon.

[0017] The preparation method of the alloy soft magnet for the above-mentioned inductor, the method comprises the following steps;

[0018] A: Put each raw material into a vacuum induction furnace and melt at a melting temperature of 1500°C to obtain a master alloy;

[0019] B: Put the master alloy into the remelting tubular crucible in the vacuum induction forming furnace for remelting, the remelting temperature is 1500°C, and nitrogen gas with a pressure of 1.2 atmospheres is introduced;

[0020] C: When the master alloy is melted, the upper valve of the remelting tubular crucible is opened, and the molten master alloy is sprayed from the through ho...

Embodiment 2

[0023] Example 2. An alloy soft magnet for inductors, characterized in that: the alloy soft magnet is made of the following raw materials in parts by weight: 70 parts of iron, 20 parts of iron oxide, 8 parts of tellurium, 3 parts of ytterbium oxide, 35 parts of nickel, 3 parts of lutetium 7 parts of cobalt, 3 parts of strontium, and 3 parts of silicon.

[0024] The preparation method of the alloy soft magnet for the above-mentioned inductor, the method comprises the following steps;

[0025] A: Put each raw material into a vacuum induction furnace for melting at a melting temperature of 1550°C to obtain a master alloy;

[0026] B: Put the master alloy into the remelting tubular crucible in the vacuum induction forming furnace for remelting, the remelting temperature is 1525°C, and nitrogen gas with a pressure of 1.6 atmospheres is introduced;

[0027] C: When the master alloy is melted, the upper valve of the remelting tubular crucible is opened, and the molten master alloy ...

Embodiment 3

[0030] Example 3. An alloy soft magnet for inductors, the alloy soft magnet is made of the following raw materials in parts by weight: 90 parts of iron, 35 parts of iron oxide, 15 parts of tellurium, 5 parts of ytterbium oxide, 45 parts of nickel, 5 parts of lutetium, and 15 parts of cobalt parts, strontium 5 parts, silicon 5 parts.

[0031] The preparation method of the alloy soft magnet for the above-mentioned inductor, the method comprises the following steps;

[0032] A: Put each raw material into a vacuum induction furnace for melting at a melting temperature of 1600°C to obtain a master alloy;

[0033] B: Put the master alloy into the remelting tubular crucible in the vacuum induction forming furnace for remelting, the remelting temperature is 1550°C, and nitrogen gas with a pressure of 2 atmospheres is introduced;

[0034] C: When the master alloy is melted, the upper valve of the remelting tubular crucible is opened, and the molten master alloy is sprayed from the th...

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PUM

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Abstract

The invention discloses an alloy soft magnet for inductor and a fabrication method of the alloy soft magnet. The soft magnet is made of iron, iron oxide, tellurium, ytterbium oxide, nickel, lutetium,cobalt, strontium and silicon. The soft magnet has the advantages of density uniformity, relatively high integral performance and relatively high magnetic durability, a shape is convenient to adjust,the working demand of an inductor during application of the inductor can be satisfied, and the soft magnet is relatively high in magnetism and is difficult to demagnetize.

Description

technical field [0001] The invention relates to an inductor accessory, in particular to an alloy soft magnet for an inductor and a preparation method thereof. Background technique [0002] Soft magnetic materials refer to when the magnetization occurs at Hc not greater than 1000A / m, such materials are called soft magnets. Typical soft magnetic materials can achieve maximum magnetization with minimum external magnetic field. Soft magnetic material is a magnetic material with low coercive force and high magnetic permeability; soft magnetic material is easy to magnetize and easy to demagnetize, and is widely used in electrical equipment and electronic equipment. The most widely used soft magnetic materials are iron-silicon alloys (silicon steel sheets) and various soft ferrites. [0003] It is rumored that soft magnets are often used in the manufacturing process of inductors. At present, the soft magnets used in inductors are usually pressed by using magnetic powder through m...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H01F1/33H01F41/02C22C38/60C22C38/08C22C38/10C22C38/02
Inventor黄学文
Owner贵州博裕电子科技有限公司