CN1967736A - A method for preparing iron-base amorphous and nanocrystalline magnetic core - Google Patents
A method for preparing iron-base amorphous and nanocrystalline magnetic core Download PDFInfo
- Publication number
- CN1967736A CN1967736A CN200610124833.4A CN200610124833A CN1967736A CN 1967736 A CN1967736 A CN 1967736A CN 200610124833 A CN200610124833 A CN 200610124833A CN 1967736 A CN1967736 A CN 1967736A
- Authority
- CN
- China
- Prior art keywords
- amorphous
- crystal
- magnetic core
- nanocrystalline magnetic
- magnetic powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention relates to a method for preparing iron-base non-crystal nanometer magnetic powder corn, wherein it comprises that: (1), embrittling Fe73.5Cu1Nb3Si13.5B9 non-crystal band in furnace, grinding in planet grinding machine, taking out, screening to obtain the magnetic powder in different diameters, as non-crystal powder; (2), thermally treating the Fe73.5Cu1Nb3Si13.5B9 non-crystal band material in vacuum furnace, grinding in planet grinding machine, vacuuming the grinding pot, taking out, adding some oleic acid to be mixed uniformly, drying and screening to obtain different magnetic powder at different diameters, as nanometer crystal powder; (3), mixing the non-crystal magnetic powder and nanometer crystal magnetic powder with polyvinyl alcohol water solution independently, to be compressed in non-crystal nanometer magnetic powder at 10MPa, painting, checking, and packing. The invention has simple process and low cost.
Description
Technical field
The present invention relates to a kind of Fe-based amorphous, nanocrystalline magnetic core preparation method.
Background technology
1988, people such as Yoshizawa reported famous Fe
73.5Cu
1Nb
3Si
13.5B
9Alloy, it has after saturation induction density height, magnetic permeability height, good stability and the heat treatment band characteristics such as being processed into alloyed powder easily that become fragile.Because its excellent performance, cheap, its powder and pulverulent product are developed rapidly as the research and development of magnetic device, people had many reports to the research of iron based nano crystal soft magnetic-powder core in recent years, but this respect also only is the research report both at home and abroad, use very fewly, do not see the listing product.
Current, scientific and technological progress needs various high performance electronic devices, thus the magnetic core is also had higher requirement.For reaching high magnetic permeability, low loss, good frequency characteristic and temperature stability, need constantly to adopt new material and new technology.
For example: in numerous power electronic equipments, noise is main circuit interference source, must use various filtering devices to reduce noise.The magnetic core plays a part crucial in filter as the main element of differential mode inductance.In order to obtain filter effect preferably, require the magnetic core material to have following performance characteristic: high saturation induction density; Wide permanent permeance; Good frequency characteristic; Good alternating current-direct current superimposed characteristics; Low loss characteristic.At above requirement, developed ferrocart core, otch amorphous alloy iron core, FeNiCo magnetic core inductance soft magnetic materials such as (MPP powder cores) in succession, these materials have been brought into play advantage and effect separately under different application conditions.At present, MPP powder core has occupied main share on high-end market, but because manufacturing process complexity, the prices of raw and semifnished materials costliness of MPP powder core cause the powder core to hold at high price, is subjected to certain restriction on range of application.In recent years, the iron based nano crystal soft magnetic-powder core is lower because of its price, preparation technology simple, excellent performance receives much attention, and is quite active to its research, is expected to substitute the part purposes of MPP powder core.
Summary of the invention
The purpose of this invention is to provide a kind of Fe-based amorphous, nanocrystalline magnetic core preparation method, its technology is simple, be easy to moulding, the demoulding, and industrial production is easy to control.
The present invention is achieved like this, and its step of preparation process is as follows: (1) is Fe with composition
73.5Cu
1Nb
3Si
13.5B
9Amorphous band heat treatment in electric furnace (250 ℃ * 1h) after the embrittlement, ball milling 1h in planetary ball mill, (material ball ratio 1: 50, deep bid rotating speed are 160 rev/mins) after the taking-up, obtains the magnetic of variable grain degree through screening, is designated as non-crystalline flour; (2) be Fe with composition
73.5Cu
1Nb
3Si
13.5B
9Amorphous band in vacuum furnace, carry out nano-crystallization heat treatment, treatment conditions are: vacuum following 550 ℃ the insulation 0.5h, cool off with stove.Because of band after the heat treatment becomes fragile easily, directly in planetary ball mill ball milling 1h (material ball ratio 1: 50 vacuumizes ball grinder, the deep bid rotating speed is 160 rev/mins), after the taking-up, add an amount of oleic acid and stir, wait to do after screening obtains the magnetic of variable grain degree, be designated as nanometer crystal powder; (3) respectively with amorphous, nanocrystalline magnetic and polyvinyl alcohol water solution (polyvinyl alcohol weight: water weight=8: 92) fully mix after, under 10MPa pressure, be pressed into amorphous, nanocrystalline magnetic core, the processing of spraying paint is done on the surface, carries out Performance Detection, finished product packing again.
Advantage of the present invention is: compare with adopting other insulating adhesives, its technology is simple, is easy to moulding, the demoulding, and industrial production is easy to control, helps environmental protection, and the certain cost advantage of tool.
Embodiment
(1) be Fe with composition
73.5Cu
1Nb
3Si
13.5B
9Amorphous band heat treatment in electric furnace (250 ℃ * 1h) after the embrittlement, ball milling 1h in planetary ball mill, material ball ratio are 1: 50, the deep bid rotating speed is 160 rev/mins, after the taking-up, obtains the magnetic of variable grain degree through screening, is designated as non-crystalline flour;
(2) be Fe with composition
73.5Cu
1Nb
3Si
13.5B
9Amorphous band in vacuum furnace, carry out nano-crystallization heat treatment, treatment conditions are: vacuum following 550 ℃ the insulation 0.5h, cool off with stove.Because of band after the heat treatment becomes fragile easily, direct ball milling 1h in planetary ball mill, material ball ratio is 1: 50, ball grinder is vacuumized, and the deep bid rotating speed is 160 rev/mins, after the taking-up, add an amount of oleic acid and stir, wait to do, be designated as nanometer crystal powder after screening obtains the magnetic of variable grain degree;
(3) respectively with amorphous, nanocrystalline magnetic and polyvinyl alcohol water solution (polyvinyl alcohol weight: water weight=8: 92) fully mix after, under 10MPa pressure, be pressed into amorphous, nanocrystalline magnetic core, the processing of spraying paint is done on the surface, carries out Performance Detection, finished product packing again.
Usually, the μ and the relation between the Q of powder core are conflicting, and under certain conditions, along with the rising of μ value, the Q value descends.People use the quality of weighing the magnetic core of amassing of μ and Q always, that is to say the long-pending big more of μ and Q, and magnetic core quality is good more.The method prepares amorphous, nanocrystalline magnetic core μ value can reach more than 30; The centre frequency of magnetic core is 10MHz, and Q value maximum can reach 20,99.6 respectively, can obtain good comprehensive properties magnetic core.Be prepared into amorphous, nanocrystalline magnetic core like this, can obtain good comprehensive properties and satisfy the requirement of the high frequency field high-performance electronic device of centre frequency 10MHz.
Claims (2)
1, a kind of Fe-based amorphous, nanocrystalline magnetic core preparation method, it is characterized in that step of preparation process is as follows: (1) is Fe with composition
73.5Cu
1Nb
3Si
13.5B
9Amorphous band heat treatment in electric furnace, heat treatment temperature is 250 ℃, the time is 1 hour, after the embrittlement, ball milling 1h in planetary ball mill, material ball ratio 1: 50, deep bid rotating speed are 160 rev/mins, after the taking-up, obtain the magnetic of variable grain degree, be designated as non-crystalline flour through screening; (2) be Fe with composition
73.5Cu
1Nb
3Si
13.5B
9Amorphous band in vacuum furnace, carry out nano-crystallization heat treatment, treatment conditions are: the following 550 ℃ of insulation 0.5h of vacuum, with stove cooling, direct ball milling 1h in planetary ball mill, material ball ratio 1: 50, ball grinder is vacuumized, the deep bid rotating speed is 160 rev/mins, after the taking-up, adds an amount of oleic acid and stirs, wait to do after screening obtains the magnetic of variable grain degree, be designated as nanometer crystal powder; (3) respectively with amorphous, nanocrystalline magnetic and after polyvinyl alcohol water solution fully mixes, be pressed into amorphous, nanocrystalline magnetic core under 10MPa pressure, the processing of spraying paint is done on the surface, carries out Performance Detection, finished product packing again.
2, Fe-based amorphous, nanocrystalline magnetic core preparation method according to claim 1 is characterized in that protecting nanocrystalline magnetic with oleic acid, and polyvinyl alcohol water solution is a bonding agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610124833.4A CN1967736A (en) | 2006-10-20 | 2006-10-20 | A method for preparing iron-base amorphous and nanocrystalline magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610124833.4A CN1967736A (en) | 2006-10-20 | 2006-10-20 | A method for preparing iron-base amorphous and nanocrystalline magnetic core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1967736A true CN1967736A (en) | 2007-05-23 |
Family
ID=38076439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610124833.4A Pending CN1967736A (en) | 2006-10-20 | 2006-10-20 | A method for preparing iron-base amorphous and nanocrystalline magnetic core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1967736A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787499B (en) * | 2009-12-09 | 2011-12-07 | 青岛云路新能源科技有限公司 | Iron-based nano-crystalline thin ribbon and manufacturing method thereof |
| CN102693827A (en) * | 2012-06-19 | 2012-09-26 | 浙江科达磁电有限公司 | High-performance nanocrystal magnetic core |
| CN102693798A (en) * | 2012-06-20 | 2012-09-26 | 浙江科达磁电有限公司 | Preparation method of high-performance nano-crystal magnetic powder core |
| CN102709015A (en) * | 2012-06-19 | 2012-10-03 | 浙江科达磁电有限公司 | Preparation method of high-performance nanocrystalline magnetic powder core |
| CN102709016A (en) * | 2012-06-20 | 2012-10-03 | 浙江科达磁电有限公司 | High-performance nanocrystalline core |
| CN102728840A (en) * | 2012-06-20 | 2012-10-17 | 浙江科达磁电有限公司 | Method for preparing metal powder of nanocrystalline magnetic cores with magnetic permeability mu of 60 |
| CN103273068A (en) * | 2013-05-22 | 2013-09-04 | 安泰科技股份有限公司 | Iron-based amorphous powder and method for preparing coil-embedded integral-forming inductor |
| CN103310936A (en) * | 2013-07-05 | 2013-09-18 | 浙江大学 | Low-loss Fe-based nanocrystalline soft magnetic powder core and manufacturing method thereof |
| CN105834440A (en) * | 2016-06-12 | 2016-08-10 | 横店集团东磁股份有限公司 | Method for preparing high-permeability flaky soft magnetic alloy powder |
| CN106229103A (en) * | 2016-08-30 | 2016-12-14 | 南昌大学 | A kind of Fe with good DC superposition characteristic95si1b2p0.5cu1.5the preparation method of powder core |
-
2006
- 2006-10-20 CN CN200610124833.4A patent/CN1967736A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787499B (en) * | 2009-12-09 | 2011-12-07 | 青岛云路新能源科技有限公司 | Iron-based nano-crystalline thin ribbon and manufacturing method thereof |
| CN102693827A (en) * | 2012-06-19 | 2012-09-26 | 浙江科达磁电有限公司 | High-performance nanocrystal magnetic core |
| CN102709015A (en) * | 2012-06-19 | 2012-10-03 | 浙江科达磁电有限公司 | Preparation method of high-performance nanocrystalline magnetic powder core |
| CN102693798A (en) * | 2012-06-20 | 2012-09-26 | 浙江科达磁电有限公司 | Preparation method of high-performance nano-crystal magnetic powder core |
| CN102709016A (en) * | 2012-06-20 | 2012-10-03 | 浙江科达磁电有限公司 | High-performance nanocrystalline core |
| CN102728840A (en) * | 2012-06-20 | 2012-10-17 | 浙江科达磁电有限公司 | Method for preparing metal powder of nanocrystalline magnetic cores with magnetic permeability mu of 60 |
| CN103273068A (en) * | 2013-05-22 | 2013-09-04 | 安泰科技股份有限公司 | Iron-based amorphous powder and method for preparing coil-embedded integral-forming inductor |
| CN103310936A (en) * | 2013-07-05 | 2013-09-18 | 浙江大学 | Low-loss Fe-based nanocrystalline soft magnetic powder core and manufacturing method thereof |
| CN105834440A (en) * | 2016-06-12 | 2016-08-10 | 横店集团东磁股份有限公司 | Method for preparing high-permeability flaky soft magnetic alloy powder |
| CN106229103A (en) * | 2016-08-30 | 2016-12-14 | 南昌大学 | A kind of Fe with good DC superposition characteristic95si1b2p0.5cu1.5the preparation method of powder core |
| CN106229103B (en) * | 2016-08-30 | 2018-02-23 | 南昌大学 | A kind of Fe with good DC superposition characteristic95Si1B2P0.5Cu1.5The preparation method of powder core |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1967736A (en) | A method for preparing iron-base amorphous and nanocrystalline magnetic core | |
| CN103996475B (en) | A kind of high-performance Ne-Fe-B rare-earth permanent magnet and manufacture method with compound principal phase | |
| CN103058643B (en) | Mn-Zn soft magnetic ferrite material with high, temperature, high superposition and low power consumption, and preparation method of Mn-Zn soft magnetic ferrite material | |
| CN102623120B (en) | Said magnetic powder material, low-loss composite magnetic and magnetic element | |
| CN1787125A (en) | Iron-base non-crystal alloy powder, magnetic powder core with excellent high frequency performance and preparation process thereof | |
| JP3964213B2 (en) | Manufacturing method of dust core and high frequency reactor | |
| CN108010654A (en) | A kind of preparation method of novel ball Fe-based amorphous alloy powder and amorphous powder core | |
| CN108424136A (en) | MHz grades of Switching Power Supply MnZn power ferrites and preparation method thereof | |
| CN103824672B (en) | Compound soft magnetic material thin film based on iron-silicon-aluminum soft magnet material and preparation method thereof | |
| CN102969108B (en) | A kind of metal dust for the preparation of magnetic permeability μ=60 nanocrystalline magnet core | |
| CN107093514A (en) | Compressed-core, the manufacture method of compressed-core, the inductor for possessing compressed-core and the electronics electrical equipments for being equipped with inductor | |
| CN102361716A (en) | Composite magnetic material | |
| CN105036724B (en) | A kind of NiCuZn Ferrite Materials and preparation method, Stacked magnetic bead | |
| CN102962465B (en) | Low-permeability, low-power consumption Fe-Si-Al soft magnetic material and production method thereof | |
| CN103060677A (en) | Manufacturing method of high-magnetic-permeability low-power-consumption iron-silicon-aluminum alloy powder for magnetic powder cores | |
| CN102709016A (en) | High-performance nanocrystalline core | |
| CN103011790B (en) | Preparation method of high-permeability manganese zinc ferrite | |
| CN105908073B (en) | A kind of preparation method of Non-oriented silicon steel for motors | |
| CN102693827A (en) | High-performance nanocrystal magnetic core | |
| CN103613375A (en) | Efficient iron-strontium mixed permanent magnet and processing process thereof | |
| CN101376801B (en) | Room temperature magnetic refrigeration working substance material and preparation thereof | |
| CN112374879A (en) | Preparation method of anti-electromagnetic interference manganese-zinc ferrite material | |
| CN105023691A (en) | Iron oxide based anti-electromagnetic interference magnet material and preparation method | |
| CN106373696A (en) | Preparation method for iron-based nanoparticle-doped magnetic coupling powder | |
| CN113470960A (en) | Production process of iron-nickel metal magnetic powder core |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20070523 |