CN109599242A - A kind of method that 3d printing prepares high-performance soft magnetic materials - Google Patents
A kind of method that 3d printing prepares high-performance soft magnetic materials Download PDFInfo
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- CN109599242A CN109599242A CN201811541255.3A CN201811541255A CN109599242A CN 109599242 A CN109599242 A CN 109599242A CN 201811541255 A CN201811541255 A CN 201811541255A CN 109599242 A CN109599242 A CN 109599242A
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- major ingredient
- ingredient powder
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- soft magnetic
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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
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of methods that 3d printing prepares high-performance soft magnetic materials, include the techniques such as mixing, spray drying, pre-burning, crushing, mist projection granulating, compacting and sintering, by being reasonably formulated improvement, and to manganese-zinc ferrite with Cu, Ni doping；The present invention combines chemosetting and photocuring, shortens curing time, the curing rate of magnetic material is improved, to improve the shaping rate of product.
Description
Technical field
The present invention relates to magnetic material manufacturing fields, and in particular to a kind of 3d printing prepares the side of high-performance soft magnetic materials
Method.
Background technique
Soft-magnetic composite material is a kind of electromagnetic application material obtained and coating electric insulating film on major ingredient powder surface
Material；Compared with traditional lamination steel magnetic core, the SMC magnetic core using powder metallurgical technique preparation has a series of unique performances,
Including relatively low total losses and flexible magnetic core under Three-Dimensional Isotropic magnetic property, low-down eddy-current loss, high frequency
Structure design etc., suitable for the motor of complex shape and magnetic circuit, can be greatly reduced the weight and volume of magnetic core.
Fe-based nanocrystalline magnetically soft alloy material since the advent of the world, because having 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.
The great advantage of magnetically soft alloy is saturation flux density with higher (Bs), with the good spy of DC superposition characteristic
Point.But the insulation resistance of magnetically soft alloy material is lower, and loss is high.
It is carried out to solidify in printing using chemical method during 3D gel print magnetic material product, but due to
Chemosetting needs the regular hour, therefore the size for printing product of fighting each other has certain limitations, if the printing larger product of product size,
Since product is not fully cured in print procedure, continue to accumulate material on the printable layer not being fully cured to cause to collapse
The defects of with deformation, so that the shaping rate of printing product is low.
Work as summary of the invention
The present invention provides a kind of method that 3d printing prepares high-performance soft magnetic materials, includes mixing, spray drying, pre-burning, powder
The techniques such as broken, mist projection granulating, compacting and sintering, by being reasonably formulated improvement, and to manganese-zinc ferrite with Cu, Ni doping；This
Invention combines chemosetting and photocuring, shortens curing time, the curing rate of magnetic material is improved, to improve product
Shaping rate.
To achieve the goals above, above-mentioned purpose is realized, the present invention provides a kind of 3d to print preparation high-performance soft magnetism material
The method of material, this method comprises the following steps:
(1) major ingredient powder is prepared
The major ingredient includes following mass percentage component: manganese oxide 32-35%, nickel oxide 5-7%, chromium oxide 0.1-
0.3%, copper oxide 0.03-0.05%, oxidation iron surplus；
It is 10-20 μm that major ingredient is ground to partial size in the ball mill, is pre-sintered 35-45min under the conditions of 900 DEG C after drying, so
950 DEG C of pre-sintering 20-25min are warming up to 2 DEG C/min afterwards, are blended after taking-up with auxiliary material, carry out secondary ball milling to partial size less than 1
μm, up to major ingredient powder after drying；
Both (2) 2- methacrylic chloride and photosensitive resin are mixed with volume ratio 1:(3-6) first, stirring 50-80min makes
It is uniformly mixed and obtains mixed liquor, add above-mentioned major ingredient powder, the volume ratio of mixed liquor and major ingredient powder is 1:(1.5-3), and
30-60min is stirred to be uniformly mixed；
(3) the silicates dispersing agent of 1-3wt% is added, the initiator potassium persulfate of 0.2-0.5wt% continues to stir 80-
100min is mixed thoroughly slurry, and wherein major ingredient powder accounts for the 55%-65vol% of slurry volume fraction, phosphoric acid
For 500-800Pa.s；
(4) obtained slurry is fitted into the syringe of gel printer, print speed 15-20mm/s, every one layer of completion is beaten
Print, spraying device will spray one layer of misty catalyst to print surface, and whole printing process carries out ultraviolet light irradiation；
(5) obtained green body dry 20-30h at 70-85 DEG C will be printed, dry green body 900- in a vacuum will be passed through
1050 DEG C are sintered, and sintering time 10-20h obtains magnetic material.
The present invention has following advantages:
(1) techniques such as preparation method report mixing, spray drying, pre-burning, crushing, mist projection granulating, compacting and sintering；System of the present invention
Standby magnetic core is improved by reasonably formula, while to manganese-zinc ferrite with Cu, Ni doping；
(2) present invention combines chemosetting and photocuring, shortens curing time, improves the curing rate of magnetic material, from
And improve the shaping rate of product.
Specific embodiment
Embodiment one
The major ingredient includes following mass percentage component: manganese oxide 32%, nickel oxide 5%, chromium oxide 0.1%, oxidation
Copper 0.03%, oxidation iron surplus；It is 10-20 μm that major ingredient is ground to partial size in the ball mill, after drying under the conditions of 900 DEG C
It is pre-sintered 35min, 950 DEG C of pre-sintering 20min are then warming up to 2 DEG C/min, are blended after taking-up with auxiliary material, carries out secondary ball milling
To partial size less than 1 μm, up to major ingredient powder after drying.
2- methacrylic chloride and photosensitive resin are mixed with volume ratio 1:3 first, stirring 50min makes the two mixing equal
It is even to obtain mixed liquor, add above-mentioned major ingredient powder, the volume ratio of mixed liquor and major ingredient powder is 1:1.5, and stirs 30-
60min is uniformly mixed；The silicates dispersing agent of 1wt% is added, the initiator potassium persulfate of 0.2wt% continues to stir
80min is mixed thoroughly slurry, and wherein major ingredient powder accounts for the 55% of slurry volume fraction, phosphoric acid 500a.s.
Obtained slurry is fitted into the syringe of gel printer, print speed 15mm/s, one layer of printing of every completion,
Spraying device will spray one layer of misty catalyst to print surface, and whole printing process carries out ultraviolet light irradiation；It will beat
Obtained green body dry 20h at 70 DEG C is printed, will be sintered for 900-1050 DEG C, be sintered in a vacuum by dry green body
Time is 10h, obtains magnetic material.
Embodiment two
The major ingredient includes following mass percentage component: manganese oxide 35%, nickel oxide 7%, chromium oxide 0.3%, oxidation
Copper 0.05%, oxidation iron surplus；It is 10-20 μm that major ingredient is ground to partial size in the ball mill, after drying under the conditions of 900 DEG C
It is pre-sintered 45min, 950 DEG C of pre-sintering 25min are then warming up to 2 DEG C/min, are blended after taking-up with auxiliary material, carries out secondary ball milling
To partial size less than 1 μm, up to major ingredient powder after drying.
2- methacrylic chloride and photosensitive resin are mixed with volume ratio 1:6 first, stirring 80min makes the two mixing equal
It is even to obtain mixed liquor, add above-mentioned major ingredient powder, the volume ratio of mixed liquor and major ingredient powder is 1:3, and stirs 60min mixing
Uniformly；The silicates dispersing agent of 3wt% is added, the initiator potassium persulfate of 0.5wt% continues stirring 100min and to expect
Slurry is mixed thoroughly, and wherein major ingredient powder accounts for the 65vol% of slurry volume fraction, phosphoric acid 800Pa.s.
Obtained slurry is fitted into the syringe of gel printer, print speed 20mm/s, one layer of printing of every completion,
Spraying device will spray one layer of misty catalyst to print surface, and whole printing process carries out ultraviolet light irradiation；It will beat
Obtained green body dry 30h at 85 DEG C is printed, will be sintered for 1050 DEG C in a vacuum by dry green body, sintering time
For 20h, magnetic material is obtained.
Claims (1)
1. a kind of method that 3d printing prepares high-performance soft magnetic materials, this method comprises the following steps:
(1) major ingredient powder is prepared
The major ingredient includes following mass percentage component: manganese oxide 32-35%, nickel oxide 5-7%, chromium oxide 0.1-
0.3%, copper oxide 0.03-0.05%, oxidation iron surplus；
It is 10-20 μm that major ingredient is ground to partial size in the ball mill, is pre-sintered 35-45min under the conditions of 900 DEG C after drying, so
950 DEG C of pre-sintering 20-25min are warming up to 2 DEG C/min afterwards, are blended after taking-up with auxiliary material, carry out secondary ball milling to partial size less than 1
μm, up to major ingredient powder after drying；
((2) are first mixed 2- methacrylic chloride and photosensitive resin with volume ratio 1:(3-6), and stirring 50-80min makes two
Person is uniformly mixed and obtains mixed liquor, adds above-mentioned major ingredient powder, and the volume ratio of mixed liquor and major ingredient powder is 1:(1.5-3),
And it stirs 30-60min and is uniformly mixed；
(3) the silicates dispersing agent of 1-3wt% is added, the initiator potassium persulfate of 0.2-0.5wt% continues to stir 80-
100min is mixed thoroughly slurry, and wherein major ingredient powder accounts for the 55%-65vol% of slurry volume fraction, phosphoric acid
For 500-800Pa.s；
(4) obtained slurry is fitted into the syringe of gel printer, print speed 15-20mm/s, every one layer of completion is beaten
Print, spraying device will spray one layer of misty catalyst to print surface, and whole printing process carries out ultraviolet light irradiation；
(5) obtained green body dry 20-30h at 70-85 DEG C will be printed, dry green body 900- in a vacuum will be passed through
1050 DEG C are sintered, and sintering time 10-20h obtains magnetic material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811541255.3A CN109599242A (en) | 2018-12-17 | 2018-12-17 | A kind of method that 3d printing prepares high-performance soft magnetic materials |
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| CN201811541255.3A CN109599242A (en) | 2018-12-17 | 2018-12-17 | A kind of method that 3d printing prepares high-performance soft magnetic materials |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516567A (en) * | 2017-10-17 | 2017-12-26 | 苏州南尔材料科技有限公司 | A kind of preparation method of the Ni-based soft magnetic materials of surface treated iron |
| CN107803505A (en) * | 2017-10-22 | 2018-03-16 | 苏州南尔材料科技有限公司 | A kind of 3d printings prepare the preparation method of Mn-Bi-Al permanent-magnet material |
| CN108818884A (en) * | 2018-06-13 | 2018-11-16 | 苏州诺弘添恒材料科技有限公司 | A kind of preparation method of the soft magnetic materials with corrosion-inhibiting coating |
-
2018
- 2018-12-17 CN CN201811541255.3A patent/CN109599242A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516567A (en) * | 2017-10-17 | 2017-12-26 | 苏州南尔材料科技有限公司 | A kind of preparation method of the Ni-based soft magnetic materials of surface treated iron |
| CN107803505A (en) * | 2017-10-22 | 2018-03-16 | 苏州南尔材料科技有限公司 | A kind of 3d printings prepare the preparation method of Mn-Bi-Al permanent-magnet material |
| CN108818884A (en) * | 2018-06-13 | 2018-11-16 | 苏州诺弘添恒材料科技有限公司 | A kind of preparation method of the soft magnetic materials with corrosion-inhibiting coating |
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Application publication date: 20190409 |