CN107785142A - A kind of preparation method of the iron nickel soft magnetic materials with high antiseptic power - Google Patents
A kind of preparation method of the iron nickel soft magnetic materials with high antiseptic power Download PDFInfo
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- CN107785142A CN107785142A CN201711047340.XA CN201711047340A CN107785142A CN 107785142 A CN107785142 A CN 107785142A CN 201711047340 A CN201711047340 A CN 201711047340A CN 107785142 A CN107785142 A CN 107785142A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
- H01F1/36—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles
- H01F1/37—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites in the form of particles in a bonding agent
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/20—Electroplating using ultrasonics, vibrations
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/001—Magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/026—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets protecting methods against environmental influences, e.g. oxygen, by surface treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0266—Moulding; Pressing
Abstract
The invention discloses a kind of preparation method of the iron nickel soft magnetic materials with high antiseptic power, employs improved sol-gal process and prepares NiFe2O4Magnetic nanoparticle, single phase property is good, and dispersion ratio is more uniform, and preparation method is simple and cost is compared with the prior art than relatively low；In addition for the present invention in magnetically soft alloy electroplating surface coating, coating caused by avoiding liberation of hydrogen effect plays drum, foaming, improves the antiseptic property of magnetically soft alloy.
Description
Technical field
The present invention relates to magnetic material manufacturing field, and in particular to a kind of iron nickel soft magnetic materials with high antiseptic power
Preparation method.
Background technology
Fe-based nanocrystalline magnetically soft alloy material since the advent of the world, because with high saturated magnetic induction, high magnetic permeability, low damage
The features such as consumption, low-coercivity and greatly paid attention to and in-depth study, and be widely used in Switching Power Supply and electromagnetic sensing
The fields such as device.
NiFe2O4Type ferrite is a kind of material for having important application prospect.Because they have high magnetic permeability, low magnetic
It is stagnant loss and be widely used in mutual inductance device, soft magnetic bodies matrix bearing, change-over switch and magnetic recording etc..At present, make
Standby NiFe2O4 The method of nanometer powder is a lot, and such as machine-alloying, can to prepare nickel ferrite based magnetic loaded nanocrystalline, but need to grind for a long time
Mill, time-consuming, high energy consumption, thus cost is high.
It is general in the use of magnetically soft alloy all to need to carry out surface coated treatment because magnetically soft alloy is oxidizable.It is wide at present
The painting method of general use is mainly electroplated, in magnetically soft alloy electrogalvanizing, electronickelling, electronickelling cupro-nickel etc..But soft magnetism closes
Gold is typically to be prepared using powder metallurgical technique, therefore the matrix of magnet is compared with metal material, loose porous, containing substantial amounts of
Micropore.Have liberation of hydrogen effect in pre-electroplating treatment and electroplating process, caused hydrogen can penetrate into, adsorb micropore in matrix surface
In, after this matrix surface plating last layer coating for oozing hydrogen or inhaling hydrogen, when covering the rise of coating environment temperature, the hydrogen meeting of absorption
It is excessive because expanding, a kind of pressure is produced to coating, coating is departed from matrix and raised, has been formed and has roused, bubbles, caused coating to lose
Effect, have a strong impact on the antiseptic power of coating.
The content of the invention
The present invention provides a kind of preparation method of the iron nickel soft magnetic materials with high antiseptic power, employs improved colloidal sol
Gel method prepares NiFe2O4Magnetic nanoparticle, single phase property is good, and dispersion ratio is more uniform, and preparation method is simple and cost is relative
Prior art is than relatively low；In addition the present invention is in magnetically soft alloy electroplating surface coating, coating caused by avoiding liberation of hydrogen effect rise drum,
Foaming, improve the antiseptic property of magnetically soft alloy.
To achieve these goals, above-mentioned purpose is realized, the invention provides a kind of iron nickel with high antiseptic power is soft
The preparation method of magnetic material, this method comprise the following steps：
(1) NiFe is prepared2O4Magnetic nanoparticle；
Iron chloride, oxalic acid and nickel chloride is taken to be dissolved in hydrochloric acid solution, ultrasonic disperse uniformly clarifies standby iron chloride, oxalic acid and chlorination afterwards
The mol ratio of nickel is 3-5:2-4:1-2, the molar concentration of hydrochloric acid are 1.6-1.9 mol/L, iron chloride, oxalic acid and nickel chloride it is total
The ratio of mole and hydrochloric acid is 1-3：3-10；
Complexing agent is added after solution clarification, acrylamide is added after complexing agent is completely dissolved, ultrasonic disperse is uniform and clarifies,
Complexing agent, iron chloride and the mol ratio of nickel chloride integral molar quantity and acrylamide are 1-2:1：6-8；
PH to 2-3 is adjusted with ammoniacal liquor, mixed solution is finally heated 60-80 DEG C, is allowed to that heat polymerization occurs, solution is transformed into
Gelinite；
Gelinite is placed in thermostatic drying chamber at 110-120 DEG C and dries 7-9 h, is subsequently placed in high temperature furnace in 430-460 DEG C
Xerogel is pulverized after insulation 50-70min；
The powder of preparation is put into high temperature furnace the sintering 1-2 h at 750-800 DEG C, finally prepares NiFe2O4Magnetic Nano
Grain；
（2）Prepare soft magnetic bodies matrix
By above-mentioned magnetic nanoparticle under 1000MPa pressure into preformed member, under argon gas protection, less than crystallization temperature
At a temperature of 30-40K, isothermal annealing 1-1.5h, then the soft magnetic bodies matrix insulated paint after annealing and binding agent are made overall
Impregnation, obtain soft magnetic bodies matrix；
（3）Soft magnetic bodies matrix is put into hermetically sealed can, polytetrafluorethylecoatings coatings are surrounded by inside hermetically sealed can, is sealing at the top of hermetically sealed can
Cover, vacuum-pumping tube and electroplate liquid access tube are connected on sealed tank cap, valve is designed with vacuum-pumping tube and electroplate liquid access tube；
After soft magnetic bodies matrix is put into hermetically sealed can, sealed tank cap is covered, the valve on vacuum-pumping tube is opened and be evacuated to very
Reciprocal of duty cycle 10-3Below Pa, the valve closed on vacuum-pumping tube, the valve on electroplate liquid access tube is opened, electricity is passed through into hermetically sealed can
Plating solution, untill soft magnetic bodies matrix is totally immersed into plating solution, then soft magnetic bodies matrix is taken out and electroplated at once；
（4）Electroplated using electroplating in ultrasonic field groove, electroplating in ultrasonic field groove is in plating trench bottom installation ultrasonic wave generating box, electricity
Plating uses barrel plating technique：
Soft magnetic bodies matrix after vacuumize process is fitted into electro-plating roller, and mixes steel ball as filler, electro-plating roller is put
Enter in ultrasonic wave electroplating bath；
Rotating cylinder rotating speed is 50-80 rpm, opens ultrasonic wave generating box power supply and electroplating power supply, proceeds by barrel plating；
At 40-45 DEG C, pH value is controlled between 2-3, barrel plating 50-100 min, obtains thickness for bath temperature control during barrel plating
For 5-15 μm of soft magnetic bodies matrix surface electroplated coating.
Preferably, described plating solution is Ni or Al plating solutions.
Soft magnetic materials prepared by the present invention possesses following advantage：
（1）Employ improved sol-gal process and prepare NiFe2O4Magnetic nanoparticle, single phase property is good, and dispersion ratio is more uniform,
Preparation method is simple and cost is compared with the prior art than relatively low；
（2）In magnetically soft alloy electroplating surface coating, coating caused by avoiding liberation of hydrogen effect plays drum, foaming, improves magnetically soft alloy
Antiseptic property.
Embodiment
Embodiment one
Iron chloride, oxalic acid and nickel chloride is taken to be dissolved in hydrochloric acid solution, ultrasonic disperse uniformly clarifies standby iron chloride, oxalic acid and chlorination afterwards
The mol ratio of nickel is 3:2:1, the molar concentration of hydrochloric acid is 1.6 mol/L, the integral molar quantity and salt of iron chloride, oxalic acid and nickel chloride
The ratio of acid is 1：3.
Complexing agent is added after solution clarification, adds acrylamide after complexing agent is completely dissolved, ultrasonic disperse is uniformly simultaneously
Clarification, complexing agent, iron chloride and the mol ratio of nickel chloride integral molar quantity and acrylamide are 1:1：6；With ammoniacal liquor adjust pH to
2, mixed solution is finally heated 60 DEG C, is allowed to that heat polymerization occurs, solution is transformed into gelinite.
Gelinite is placed in thermostatic drying chamber at 110 DEG C and dries 7 h, is subsequently placed in high temperature furnace in 430 DEG C of insulations
Xerogel is pulverized after 50min；The powder of preparation is put into high temperature furnace at 750 DEG C and sinters 1 h, is finally prepared
NiFe2O4Magnetic nanoparticle.
By above-mentioned magnetic nanoparticle under 1000MPa pressure into preformed member, under argon gas protection, less than crystallization temperature
At a temperature of spending 30K, isothermal annealing 1h, then the soft magnetic bodies matrix insulated paint after annealing and binding agent are made at mass-impregnation
Reason, obtains soft magnetic bodies matrix.
After soft magnetic bodies matrix is put into hermetically sealed can, sealed tank cap is covered, the valve opened on vacuum-pumping tube is vacuumized
To vacuum 10-3Below Pa, the valve closed on vacuum-pumping tube, the valve on electroplate liquid access tube is opened, led into hermetically sealed can
Enter electroplate liquid, untill soft magnetic bodies matrix is totally immersed into plating solution, then soft magnetic bodies matrix is taken out and electroplated at once；Described
Plating solution is Ni plating solutions.
To be electroplated using electroplating in ultrasonic field groove, electroplating in ultrasonic field groove is to install ultrasonic wave generating box in plating trench bottom,
Plating uses barrel plating technique：Soft magnetic bodies matrix after vacuumize process is fitted into electro-plating roller, and mixes steel ball as filler,
Electro-plating roller is put into electroplating in ultrasonic field groove；Rotating cylinder rotating speed is 50 rpm, opens ultrasonic wave generating box power supply and plating
Power supply, proceed by barrel plating；Bath temperature control is at 40 DEG C during barrel plating, and pH value is controlled between 2-3, the min of barrel plating 50,
Obtain the soft magnetic bodies matrix surface electroplated coating that thickness is 5 μm.
Embodiment two
Iron chloride, oxalic acid and nickel chloride is taken to be dissolved in hydrochloric acid solution, ultrasonic disperse uniformly clarifies standby iron chloride, oxalic acid and chlorination afterwards
The mol ratio of nickel is 5:4:2, the molar concentration of hydrochloric acid is 1.9 mol/L, the integral molar quantity and salt of iron chloride, oxalic acid and nickel chloride
The ratio of acid is 3：10.
Complexing agent is added after solution clarification, adds acrylamide after complexing agent is completely dissolved, ultrasonic disperse is uniformly simultaneously
Clarification, complexing agent, iron chloride and the mol ratio of nickel chloride integral molar quantity and acrylamide are 2:1：8；With ammoniacal liquor adjust pH to
3, mixed solution is finally heated 80 DEG C, is allowed to that heat polymerization occurs, solution is transformed into gelinite.
Gelinite is placed in thermostatic drying chamber at 120 DEG C and dries 9 h, is subsequently placed in high temperature furnace in 460 DEG C of insulations
Xerogel is pulverized after 70min；The powder of preparation is put into high temperature furnace at 800 DEG C and sinters 2 h, is finally prepared
NiFe2O4Magnetic nanoparticle.
By above-mentioned magnetic nanoparticle under 1000MPa pressure into preformed member, under argon gas protection, less than crystallization temperature
At a temperature of spending 40K, isothermal annealing 1.5h, the soft magnetic bodies matrix insulated paint after annealing and binding agent are then made into mass-impregnation
Processing, obtains soft magnetic bodies matrix.
After soft magnetic bodies matrix is put into hermetically sealed can, sealed tank cap is covered, the valve opened on vacuum-pumping tube is vacuumized
To vacuum 10-3Below Pa, the valve closed on vacuum-pumping tube, the valve on electroplate liquid access tube is opened, led into hermetically sealed can
Enter electroplate liquid, untill soft magnetic bodies matrix is totally immersed into plating solution, then soft magnetic bodies matrix is taken out and electroplated at once；Described
Plating solution Al plating solutions.
To be electroplated using electroplating in ultrasonic field groove, electroplating in ultrasonic field groove is to install ultrasonic wave generating box in plating trench bottom,
Plating uses barrel plating technique：Soft magnetic bodies matrix after vacuumize process is fitted into electro-plating roller, and mixes steel ball as filler,
Electro-plating roller is put into electroplating in ultrasonic field groove；Rotating cylinder rotating speed is 80 rpm, opens ultrasonic wave generating box power supply and plating
Power supply, proceed by barrel plating；Bath temperature control is at 45 DEG C during barrel plating, and pH value is controlled between 2-3, the min of barrel plating 100,
Obtain the soft magnetic bodies matrix surface electroplated coating that thickness is 15 μm.
Claims (2)
1. a kind of preparation method of the iron nickel soft magnetic materials with high antiseptic power, this method comprise the following steps：
(1) NiFe is prepared2O4Magnetic nanoparticle；
Iron chloride, oxalic acid and nickel chloride is taken to be dissolved in hydrochloric acid solution, ultrasonic disperse uniformly clarifies standby iron chloride, oxalic acid and chlorination afterwards
The mol ratio of nickel is 3-5:2-4:1-2, the molar concentration of hydrochloric acid are 1.6-1.9 mol/L, iron chloride, oxalic acid and nickel chloride it is total
The ratio of mole and hydrochloric acid is 1-3：3-10；
Complexing agent is added after solution clarification, acrylamide is added after complexing agent is completely dissolved, ultrasonic disperse is uniform and clarifies,
Complexing agent, iron chloride and the mol ratio of nickel chloride integral molar quantity and acrylamide are 1-2:1：6-8；
PH to 2-3 is adjusted with ammoniacal liquor, mixed solution is finally heated 60-80 DEG C, is allowed to that heat polymerization occurs, solution is transformed into
Gelinite；
Gelinite is placed in thermostatic drying chamber at 110-120 DEG C and dries 7-9 h, is subsequently placed in high temperature furnace in 430-460 DEG C
Xerogel is pulverized after insulation 50-70min；
The powder of preparation is put into high temperature furnace the sintering 1-2 h at 750-800 DEG C, finally prepares NiFe2O4Magnetic Nano
Grain；
（2）Prepare soft magnetic bodies matrix
By above-mentioned magnetic nanoparticle under 1000MPa pressure into preformed member, under argon gas protection, less than crystallization temperature
At a temperature of 30-40K, isothermal annealing 1-1.5h, then the soft magnetic bodies matrix insulated paint after annealing and binding agent are made overall
Impregnation, obtain soft magnetic bodies matrix；
（3）Soft magnetic bodies matrix is put into hermetically sealed can, polytetrafluorethylecoatings coatings are surrounded by inside hermetically sealed can, is sealing at the top of hermetically sealed can
Cover, vacuum-pumping tube and electroplate liquid access tube are connected on sealed tank cap, valve is designed with vacuum-pumping tube and electroplate liquid access tube；
After soft magnetic bodies matrix is put into hermetically sealed can, sealed tank cap is covered, the valve on vacuum-pumping tube is opened and be evacuated to very
Reciprocal of duty cycle 10-3Below Pa, the valve closed on vacuum-pumping tube, the valve on electroplate liquid access tube is opened, electricity is passed through into hermetically sealed can
Plating solution, untill soft magnetic bodies matrix is totally immersed into plating solution, then soft magnetic bodies matrix is taken out and electroplated at once；
（4）Electroplated using electroplating in ultrasonic field groove, electroplating in ultrasonic field groove is in plating trench bottom installation ultrasonic wave generating box, electricity
Plating uses barrel plating technique：
Soft magnetic bodies matrix after vacuumize process is fitted into electro-plating roller, and mixes steel ball as filler, electro-plating roller is put
Enter in ultrasonic wave electroplating bath；
Rotating cylinder rotating speed is 50-80 rpm, opens ultrasonic wave generating box power supply and electroplating power supply, proceeds by barrel plating；
At 40-45 DEG C, pH value is controlled between 2-3, barrel plating 50-100 min, obtains thickness for bath temperature control during barrel plating
For 5-15 μm of soft magnetic bodies matrix surface electroplated coating.
2. the method as described in claim 1, it is characterised in that described plating solution is Ni or Al plating solutions.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108754324A (en) * | 2018-06-13 | 2018-11-06 | 苏州诺弘添恒材料科技有限公司 | A kind of preparation method of the iron-based soft magnetic body with nano coating |
| CN108899188A (en) * | 2018-06-13 | 2018-11-27 | 苏州诺弘添恒材料科技有限公司 | A kind of preparation method of the iron nickel soft magnetic bodies with nano anti-corrosive body layer |
| CN108899192A (en) * | 2018-06-30 | 2018-11-27 | 苏州诺弘添恒材料科技有限公司 | A kind of preparation method of the iron nickel soft magnetic bodies with ceramic layer |
| CN109285690A (en) * | 2018-12-17 | 2019-01-29 | 戴爱娟 | A kind of method that ferromagnetic particle prepares composite cores |
| CN109585154A (en) * | 2018-12-17 | 2019-04-05 | 戴爱娟 | A kind of preparation method for the iron nickel composite cores being coated processing |
| CN109599244A (en) * | 2018-12-17 | 2019-04-09 | 戴爱娟 | A kind of preparation method of iron nickel soft magnetic materials |
| CN109599243A (en) * | 2018-12-17 | 2019-04-09 | 瞿凌飞 | A kind of method that ferromagnetic particle utilizes gel method to prepare compound magnetic material |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1979698A (en) * | 2006-11-06 | 2007-06-13 | 南昌大学 | Method for making novel ferrite/iron-base composite material soft magnetic-powder core |
| CN101698612A (en) * | 2009-10-23 | 2010-04-28 | 北京化工大学 | Homodisperse ferrite magnetic manoparticles and preparation method thereof |
| CN102637518A (en) * | 2011-11-30 | 2012-08-15 | 同济大学 | Method for preparing iron-based composite magnetic powder core |
| CN103172359A (en) * | 2013-03-25 | 2013-06-26 | 海宁联丰磁业股份有限公司 | Manganese zinc power ferrite magnetic powder core and preparation method thereof |
| CN106278230A (en) * | 2016-08-17 | 2017-01-04 | 安徽德信电气有限公司 | A kind of soft magnetic ferrite with capability of electromagnetic shielding |
| CN107039168A (en) * | 2017-04-26 | 2017-08-11 | 凉山稀土产业技术研究院 | A kind of preparation method of Fe-B rare-earth permanent magnet electroplating surface coating |
| CN107285391A (en) * | 2017-06-01 | 2017-10-24 | 苏州乔纳森新材料科技有限公司 | A kind of preparation method of magnetic Nano material |
-
2017
- 2017-10-31 CN CN201711047340.XA patent/CN107785142A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1979698A (en) * | 2006-11-06 | 2007-06-13 | 南昌大学 | Method for making novel ferrite/iron-base composite material soft magnetic-powder core |
| CN101698612A (en) * | 2009-10-23 | 2010-04-28 | 北京化工大学 | Homodisperse ferrite magnetic manoparticles and preparation method thereof |
| CN102637518A (en) * | 2011-11-30 | 2012-08-15 | 同济大学 | Method for preparing iron-based composite magnetic powder core |
| CN103172359A (en) * | 2013-03-25 | 2013-06-26 | 海宁联丰磁业股份有限公司 | Manganese zinc power ferrite magnetic powder core and preparation method thereof |
| CN106278230A (en) * | 2016-08-17 | 2017-01-04 | 安徽德信电气有限公司 | A kind of soft magnetic ferrite with capability of electromagnetic shielding |
| CN107039168A (en) * | 2017-04-26 | 2017-08-11 | 凉山稀土产业技术研究院 | A kind of preparation method of Fe-B rare-earth permanent magnet electroplating surface coating |
| CN107285391A (en) * | 2017-06-01 | 2017-10-24 | 苏州乔纳森新材料科技有限公司 | A kind of preparation method of magnetic Nano material |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108754324A (en) * | 2018-06-13 | 2018-11-06 | 苏州诺弘添恒材料科技有限公司 | A kind of preparation method of the iron-based soft magnetic body with nano coating |
| CN108899188A (en) * | 2018-06-13 | 2018-11-27 | 苏州诺弘添恒材料科技有限公司 | A kind of preparation method of the iron nickel soft magnetic bodies with nano anti-corrosive body layer |
| CN108899192A (en) * | 2018-06-30 | 2018-11-27 | 苏州诺弘添恒材料科技有限公司 | A kind of preparation method of the iron nickel soft magnetic bodies with ceramic layer |
| CN109285690A (en) * | 2018-12-17 | 2019-01-29 | 戴爱娟 | A kind of method that ferromagnetic particle prepares composite cores |
| CN109585154A (en) * | 2018-12-17 | 2019-04-05 | 戴爱娟 | A kind of preparation method for the iron nickel composite cores being coated processing |
| CN109599244A (en) * | 2018-12-17 | 2019-04-09 | 戴爱娟 | A kind of preparation method of iron nickel soft magnetic materials |
| CN109599243A (en) * | 2018-12-17 | 2019-04-09 | 瞿凌飞 | A kind of method that ferromagnetic particle utilizes gel method to prepare compound magnetic material |
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Application publication date: 20180309 |