CN104231708A - Soft magnetic coating used multipolar static magnetic field, and preparation method of soft magnetic coating - Google Patents
Soft magnetic coating used multipolar static magnetic field, and preparation method of soft magnetic coating Download PDFInfo
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- CN104231708A CN104231708A CN201310248293.0A CN201310248293A CN104231708A CN 104231708 A CN104231708 A CN 104231708A CN 201310248293 A CN201310248293 A CN 201310248293A CN 104231708 A CN104231708 A CN 104231708A
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- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 239000004141 Sodium laurylsulphate Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/23—Magnetisable or magnetic paints or lacquers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/66—Additives characterised by particle size
- C09D7/67—Particle size smaller than 100 nm
Abstract
The invention discloses a soft magnetic coating, which preferably comprises the following raw materials in percentage by weight: 65-85% of flakey soft magnetic powder, 9-25% of adhesive, 5-15% of diluent, and 1-5.5% of auxiliaries, wherein the diameter of the flakey soft magnetic powder in a long axis direction is 10nm-300mu m, preferably 10mu m-200 mu m, and the diameter-thickness ratio of the flaky soft magnetic powder is 1-300, preferably 5-100. When being matched for use, a permanent magnetic material with the multipolar static magnetic field and the soft magnetic coating have desirable attraction. The soft magnetic coating is mainly used as a wall body coating, and can be coated on base materials such as a printing medium and wallpaper, and can be manufactured into a high-performance soft magnetic composite material. In addition, the invention further discloses a preparation method of the soft magnetic coating and a soft magnetic composite material adopting the soft magnetic coating.
Description
Technical field
The invention belongs to paint field, more particularly, the present invention relates to a kind of soft magnetism coating used under multipole static magnetic field and preparation method thereof.
Background technology
Coating has been widely used in daily life, can play protection and decorative effect.Along with progress and the development of science and technology, some multifunctional coatings are also engendered in recent years, as having electric insulation functions, anti-pollution function, decrease of noise functions, heat insulating function, conducting function and magnetic function coating.
As some permanent magnetism coating that market in recent years occurs, this coating can form coating after drying after the techniques such as brushing are coated in some substrate surface, by magnetizing to this paint coatings, coating can be made to have magnetic, the metal products such as iron or nickel can be adsorbed.
Such as, US Patent No. 5,843,329 disclose one " magnetic coating additive (MAGNETIC PAINTOR INK ADDITIVE) " discloses a kind of ferromegnetism coating, with the addition of after particle diameter is the ferromagnetic particle of 0.01-297 μm in coating, make coating have permanent magnetism or soft magnetic property.Chinese invention patent application CN200910039024.7 discloses " a kind of magnetism-absorbing coating and preparation method thereof ", coating is made up of the water of the emulsion of 20-70%, the non-magnetite powder of 10-80% and the non-ferromagnetic powder of iron filings powder, the sanitas of 0.1-10% and surplus, is mixed according to a certain percentage by various material.Above-mentioned two sections of patents make use of permanent magnetism or the soft magnetic property of material self all well, but all do not describe and application making the morphology microstructure of soft magnetic materials performance remarkably influenced, the coating property made is poor, just good result of use can be reached after need repeatedly applying, use this coating application excessive cycle, take time and effort.
Except coating article itself, also magnetic coating can be coated on some base material, as wallpaper and printing consumables, make diversified soft-magnetic composite material.Chinese utility model patent CN200820044399.3 " sheet material of magnetic white board " as applicant application discloses the blank film product made after a kind of magnetic coating is coated on erasable film, and Chinese utility model patent CN200820176937.4 " a kind of magnetic paper product that can directly print " discloses the printable magnetic composite made after a kind of magnetic coating is coated on printing consumables.In addition, magnetic coating or soft magnetism coating can also be coated on making above wallpaper material becomes permanent magnetism wallpaper or soft magnetism wallpaper.
At present, soft magnetism coating of the prior art generally all contains spherical or other irregularly shaped and soft magnetic materials particles that are particle diameter, soft magnetism coatings on metope or other base materials after, coated side has the characteristic of soft magnetic materials, can be adsorbed by permanent magnetism product.Therefore, the product can easily common refrigerator paste, magnetic hanger, traffic allowance, placard etc. in life with magnetic property is adsorbed in coat side, the life be convenient for people to.The many flush type permanent magnet products with multipole magnetization of this soft magnetism coating with the use of, as permanent magnet products such as magnetic rubber sheet material, permanent magnetism coated film and other decorative material for wall surface.
But, soft magnetism coating of the prior art in use also exists serious defect: because the performance of existing soft magnetism coating is lower, poly-magnetic is limited in one's ability, in order to make to obtain enough large suction between soft magnetic materials coating and magnetic product, need that the coating of soft magnetism coating is enough thick just can meet the demands, therefore need repeatedly to whitewash soft magnetism coating to add thick coating.Such as whitewash body of wall, after powder brushes one times, need wait one day even longer time wait coating drying after could brush next time again, so, not only result in long construction period, efficiency of the practice is low, and causes coating to waste greatly, economic not environmental protection.
When soft magnetism coatings is used for making soft-magnetic composite material on some base material, general requirement coating gets over Bao Yuehao, therefore under thinner coating conditions, meet that to produce larger suction between coating and permanent magnet product be a technical barrier.
In view of this, necessaryly a kind of novel high-performance soft magnetism coating and preparation method thereof is provided.
Summary of the invention
The object of the invention is to: the shortcoming and defect overcoming soft magnetism coating in prior art, provide a kind of for the preparation of with multipole permanent magnet material with the use of time, static magnetic field concentration class is high, the high-performance soft magnetism coating of the soft magnetism coating with desirable suction and preparation method thereof.
In order to realize foregoing invention object, the invention provides a kind of soft magnetism coating, it contains sheet soft magnetism powder, tamanori, thinner and auxiliary agent, and the screening formulation of soft magnetism coating is the auxiliary agent of the sheet soft magnetism powder of 65-85wt%, the tamanori of 9-25wt%, the thinner of 5-15wt% and 1-5.5wt%.If the content of sheet soft magnetism powder is too low, easily causes between soft magnetism powder and produce leakage field phenomenon because gap is too large, cause the suction between soft magnetism paint coatings and magnetic product too low; If the too high levels of sheet soft magnetism powder, then easily affect the physicals of coating, to cause after the drying of soft magnetism paint coatings dry linting or brittleness excessive.
One as soft magnetism coating of the present invention is improved, and the diameter in described sheet soft magnet powder long axis of body direction is 10nm-300 μm, and be preferably 10 μm-200 μm, radius-thickness ratio is 1-300, is preferably 5-100.
One as soft magnetism coating of the present invention is improved, and described sheet soft magnetism powder is one or more in flake iron powder or sheet iron-based, cobalt-based, Ni based soft magnetic powder, sheet soft magnetic ferrite powder.
One as soft magnetism coating of the present invention is improved, described tamanori is polyvinyl acetate (PVA) and polymer latex thereof, acrylate copolymer and copolymer emulsion thereof, polyvinyl alcohol and derivative thereof, vinyl halide polymers latex, styrene polymer and copolymer emulsion thereof, diene polymer and copolymer emulsion thereof, based on the polymer latex of fat hydrocarbon, polyvinylpyrrolidone and polymkeric substance thereof, epoxy resin and copolymer emulsion thereof, aminoresin and copolymer emulsion thereof, resol and copolymer emulsion thereof, polymeric amide emulsion, alkide resin emulsion, polyaminoester emulsion, silicone resin emulsion, sodium polyacrylate, ether of cellulose, starch, gelatin, one or more in natural gum.
One as soft magnetism coating of the present invention is improved, and described thinner is one or more in alcoholic solvent, ether solvent, esters solvent, varsol, ketones solvent, water.
One as soft magnetism coating of the present invention is improved, and described auxiliary agent contains flow agent, defoamer and dispersion agent.
One as soft magnetism coating of the present invention is improved, and described flow agent is one or more in polyacrylic flow agent, polysiloxane-based flow agent.
One as soft magnetism coating of the present invention is improved, and described defoamer is one or more in silicon-dioxide, ethanol, ethylene glycol monobutyl ether, tributyl phosphate, siloxane polymer, polyethers, natural fats and oils, mineral oil.
One as soft magnetism coating of the present invention is improved, and described dispersion agent is one or more in carboxylate salt, sulfonate, phosphoric acid salt, alkane hydroxyl amine salt, polyacrylic ester, urethane, segmented copolymer.
In addition, present invention also offers a kind of soft-magnetic composite material, it comprises base material and is distributed in the soft magnetism coating on base material, wherein, described soft magnetism coating is aforementioned soft magnetism coating, sheet soft magnetism powder, in coating process, can be passed through stress or magnetic field orientating, makes sheet soft magnetism powder sagittal plane, parallel arrangement even, consistent along the direction parallel with substrate surface in the coating.
In order to realize foregoing invention object, present invention also offers a kind of preparation method of soft magnetism coating, it comprises the following steps:
Make sheet soft magnetism powder, adopt ball milling or lapping mode process, ball-grinding machine can adopt tumbling ball mill, agitating ball mill, planetary ball mill and sand mill;
Sheet soft magnetism powder, tamanori, thinner and auxiliary agent are put into dispersion machine and forms mixture; And
Use the mixture of dispersion machine uniform stirring sheet soft magnetism powder, tamanori, thinner and auxiliary agent, obtain soft magnetism coating, dispersing speed is 500-1500 rev/min, and churning time is more than 20 minutes.
One as the preparation method of soft magnetism coating of the present invention is improved, and the diameter in described sheet soft magnet powder long axis of body direction is 10nm-300 μm, is preferably 10 μm-200 μm, radius-thickness ratio 1-300, is preferably 5-100.
One as the preparation method of soft magnetism coating of the present invention is improved, and described sheet soft magnetism powder is one or more in flake iron powder or sheet iron-based, cobalt-based, Ni based soft magnetic powder, sheet soft magnetic ferrite powder.
One as the preparation method of soft magnetism coating of the present invention is improved, the auxiliary agent of the sheet soft magnetism powder preferably containing 65-85wt% in described soft magnetism coating, the tamanori of 9-25wt%, the thinner of 5-15wt% and 1-5.5wt%.
When soft magnetism coating uses, by by soft magnetism paint in the plane of metope or other base materials, form soft magnetism paint coatings after solidification, soft magnetism coating and permanent magnet material attract each other generation suction.Soft magnetism powder in existing soft magnetism coating is spherical powder or irregular powder, and when soft magnetism paint is in substrate plane, the magnetic permeability in all directions is substantially identical.As shown in Figure 1, powder in coating 10 ' is spherical powder, when the permanent magnet material 20 ' with multipole magnetization is fitted, the X-direction parallel with binding face and with laminating plane orthogonal Y-direction on magnetic permeability substantially identical, after magnetic line of force 30 ' in the multipole static magnetic field that permanent magnet material produces enters soft magnetism coating, likely penetrate coating, cause leakage field phenomenon.
Soft magnetism powder employing long axis direction diameter in soft magnetism coating of the present invention is the sheet soft magnetism powder of 10-200 μm, sheet soft magnetism powder and tamanori, thinner and auxiliary agent mix by a certain percentage makes coating, when lamellar powder is erect, center of gravity is high, play pendulum, during tiling, center of gravity is low, it is energy stabilization state, flaky powder tends to tiling distribution under state of nature or time stressed, therefore, after soft magnetism coating of the present invention forms coating on base material, flaky powder sagittal plane is in the coating along, parallel arrangement even with substrate surface parallel direction.。
Air gap closed magnetic circuit suction formula is opened according to static magnetic field
In above-mentioned formula 1.1, F is suction, and B is the magnetic flux of unit area, μ
0for air permeability, A is magnetic circuit sectional area.
Soft magnetism coating with specific permanent magnet material with the use of time, the magnetic flux in binding face is larger, and the suction between coating and permanent magnet material is larger.Soft magnetism coatings of the present invention is after substrate surface, and when fitting with the permanent magnet material 20 with multipole static magnetic field, its magnetic line of force as shown in Figure 2.Because lamellar powder is parallel to the arrangement of binding face X-direction, when magnetic line of force 30 runs into flaky powder, because flaky powder 10 is greater than perpendicular to the magnetic permeability in binding face Y-direction at the magnetic permeability being parallel to binding face X-direction, therefore, the magnetic line of force that more N pole sends can be advanced along Y-direction and can not penetrate coating, thus how closed flux loop can be formed between soft magnetism coating and permanent magnet material, larger by the magnetic flux of binding face, thus produce larger suction.
Relative to prior art, the present invention has the following advantages: 1) under multipole static magnetic field, and between soft magnetism coating and permanent magnet material, more existing soft magnetism coating has higher suction; 2) because thinner coating just can reach identical effect, do not need multilayer to whitewash, thus construction period is shorter, and efficiency is higher; 3) can be coated on the base materials such as various print media or wallpaper, make high performance soft-magnetic composite material; 4) soft magnetism paint coatings that can be thinner reaches identical function, more economically material benefit; 5) water paste, more environmental protection is adopted.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, soft magnetism coating of the present invention and preparation method thereof is described in detail, in accompanying drawing:
Fig. 1 be existing soft magnetism paint on base material with permanent magnet material with the use of schematic diagram.
Fig. 2 be soft magnetism paint of the present invention on base material with permanent magnet material with the use of schematic diagram.
Embodiment
In order to make goal of the invention of the present invention, technical scheme and Advantageous Effects more clear, below in conjunction with drawings and Examples, the present invention is described in more detail.Should be understood that, the embodiment described in this specification sheets is only to explain the present invention, is not intended to limit the present invention.
Embodiment 1
The formula of soft magnetism coating is: soft magnetism powder is the FeSi of 72.5wt%
6.5, tamanori is the ACRYLIC EMULSION of 13wt%, and thinner is the water of 11.5wt%, and auxiliary agent is the ammonium salt of the polyacrylic acid of 2wt%, the mineral oil of 0.5wt% and 0.5wt%.
The preparation method of soft magnetism coating is: with tumbling ball mill to FeSi
6.5powder carries out flaky process, and ratio of grinding media to material is 5:1, by FeSi
6.5the diameter wearing into long axis direction is 20 μm-50 μm, and radius-thickness ratio is the sheet FeSi of 5-20
6.5powder; By sheet FeSi
6.5powder and tamanori, thinner and auxiliary agent are mixed in container, after dispersion machine 750 turns/min stirs 30 minutes, obtain soft magnetism coating.
The soft magnetism coating of embodiment 1 is tested as follows:
High-performance soft magnetism paint embodiment 1 obtained is on the thick KT plate of 5mm, and coat-thickness is 0.15mm, and coat rear wait 3 hours, coating solidifies drying completely.
Adopt side's property rubber magnets such as one piece of 100mm x100mm x0.15mm, permanent magnet material magnet charger carries out one side multipole magnetization with 1.5mm magnetic moment, and after magnetizing, the table magnetic of rubber magnet is 100Gs.
Be fitted in by rubber magnet after above-mentioned magnetizing on the KT plate being coated with embodiment 1 soft magnetism coating, use tensiometer to detect its vertical tension, the vertical tension data drawn are 2.4g/cm
2.
Comparative example 1
The soft magnetism powder FeSi adopted in comparative example 1
6.5form be spherical powder, particle diameter is 20-50 μm, and all the other are identical with embodiment 1.
To the experiment that comparative example 1 is carried out similarly to Example 1, the vertical tension data drawn are 1.8g/cm
2.Embodiment 2
The formula of soft magnetism coating is: soft magnetism powder is the iron powder of 80.5wt%, and tamanori is the polyvinyl butyral acetal of 10wt%, and thinner is the ethanol of 8wt%, and auxiliary agent is the sodium lauryl sulphate of the urethane of 0.8wt%, the silicone oil of 0.5wt% and 0.2wt%.
The preparation method of soft magnetism coating is: the flake iron powder body with the diameter that iron powder to be ground to form long axis direction by shredder being 50-80 μm, radius-thickness ratio 20-35; Flake iron powder body and tamanori, thinner and auxiliary agent are mixed in container, stir through dispersion machine 500 turns/min and within 50 minutes, obtain embodiment 2 soft magnetism coating.
Carry out the experiment identical with embodiment 1 to embodiment 2 soft magnetism coating, the vertical tension data recorded are 2.6g/cm
2.
Comparative example 2
The form of the soft magnetism powder iron powder adopted in comparative example 2 is irregularly shaped, and particle diameter is 50-80 μm, and all the other are identical with embodiment 2.
Carry out the experiment identical with embodiment 1 to comparative example 2 soft magnetism coating, the vertical tension data recorded are 1.8g/cm
2.
Embodiment 3
The formula of soft magnetism coating is: the polyacrylamide that the water that the ethylene-vinyl acetate copolymer that the nickel powder that soft magnetism powder is 67wt%, tamanori are 15wt%, thinner are the ethanol of 8wt% and 6wt%, auxiliary agent are the vinylformic acid of 2wt%, the polyether type defoamer of 0.7wt% and 1.3wt%.
The preparation method of soft magnetism coating is: the diameter with agitating ball mill nickel powder body being worn into long axis direction is 80-100 μm, and radius-thickness ratio is the Nickel Powder body of 30-80; Nickel Powder body and tamanori, thinner and auxiliary agent are mixed in container, stir through dispersion machine 1200 turns/min and within 20 minutes, obtain embodiment 3 soft magnetism coating.
Carry out the experiment identical with embodiment 1 to embodiment 3 soft magnetism coating, the vertical tension data recorded are 2.3g/cm
2.
Comparative example 3
The form of the soft magnetism powder nickel powder adopted in comparative example 3 is irregularly shaped, and particle diameter is 80-100 μm, and all the other are identical with embodiment 3.
Carry out the experiment identical with embodiment 1 to comparative example 3 soft magnetism coating, the vertical tension data recorded are 1.6g/cm
2.
Can be found out by comparative example 1-3 and comparative example 1-3, use the performance of the soft magnetism coating of flaky powder stronger, the vertical tension that pulling experiment is measured on average improves about 40% than using the soft magnetism coating of spherical or irregularly shaped powder.
The announcement of book and instruction according to the above description, those skilled in the art in the invention can also carry out suitable change and amendment to above-mentioned embodiment.Therefore, the present invention is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present invention modifications and changes more of the present invention.In addition, although employ some specific terms in this specification sheets, these terms just for convenience of description, do not form any restriction to the present invention.
Claims (15)
1. a soft magnetism coating, is characterized in that, described soft magnetism coating contains or part contains sheet soft magnetism powder, tamanori, thinner and auxiliary agent.
2. soft magnetism coating according to claim 1, is characterized in that, described soft magnetism coating contains the auxiliary agent of the sheet soft magnetism powder of 65-85wt%, the tamanori of 9-25wt%, the thinner of 5-15wt% and 1-5.5wt%.
3. soft magnetism coating according to claim 1, is characterized in that, the diameter in described sheet soft magnet powder long axis of body direction is 10nm-300 μm, and be preferably 10 μm-200 μm, radius-thickness ratio is 1-300, is preferably 5-100.
4. soft magnetism coating according to claim 1, is characterized in that, described sheet soft magnetism powder is one or more in flake iron powder or sheet iron-based, cobalt-based, Ni based soft magnetic powder, sheet soft magnetic ferrite powder.
5. soft magnetism coating according to claim 1, it is characterized in that, described tamanori is polyvinyl acetate (PVA) and polymer latex thereof, acrylate copolymer and copolymer emulsion thereof, polyvinyl alcohol and derivative thereof, vinyl halide polymers latex, styrene polymer and copolymer emulsion thereof, diene polymer and copolymer emulsion thereof, based on the polymer latex of fat hydrocarbon, polyvinylpyrrolidone and polymkeric substance thereof, epoxy resin and copolymer emulsion thereof, aminoresin and copolymer emulsion thereof, resol and copolymer emulsion thereof, polymeric amide emulsion, alkide resin emulsion, polyaminoester emulsion, silicone resin emulsion, sodium polyacrylate, ether of cellulose, starch, gelatin, one or more in natural gum.
6. soft magnetism coating according to claim 1, is characterized in that, described thinner is one or more in water, alcoholic solvent, ether solvent, esters solvent, varsol, ketones solvent.
7. soft magnetism coating according to claim 1, is characterized in that, described auxiliary agent contains flow agent, defoamer and dispersion agent.
8. soft magnetism coating according to claim 7, is characterized in that, described flow agent is one or more in polyacrylic flow agent, polysiloxane-based flow agent.
9. soft magnetism coating according to claim 7, is characterized in that, described defoamer is one or more in silicon-dioxide, ethanol, ethylene glycol monobutyl ether, tributyl phosphate, siloxane polymer, polyethers, natural fats and oils, mineral oil.
10. soft magnetism coating according to claim 7, is characterized in that, described dispersion agent is one or more in carboxylate salt, sulfonate, phosphoric acid salt, alkane hydroxyl amine salt, polyacrylic ester, urethane, segmented copolymer.
11. 1 kinds of soft-magnetic composite materials, comprise base material and be distributed in the soft magnetism coating on base material, it is characterized in that, the soft magnetism coating of described soft magnetism coating according to any one of claim 1 to 10, wherein, sheet soft magnetism powder is through stress or magnetic field orientating, and sheet soft magnetism powder sagittal plane is in the coating along, parallel arrangement even with substrate surface parallel direction.
The preparation method of 12. 1 kinds of soft magnetism coating, is characterized in that, comprises the following steps:
Sheet soft magnetism powder is made by the mode of ball milling or grinding;
Sheet soft magnetism powder, tamanori, thinner and auxiliary agent are put into dispersion machine and forms mixture;
The mixture of uniform stirring sheet soft magnetism powder, tamanori, thinner and auxiliary agent, obtains soft magnetism coating.
13. preparation methods according to claim 12, is characterized in that, the diameter in described sheet soft magnet powder long axis of body direction is 10nm-300 μm, and be preferably 10 μm-200 μm, radius-thickness ratio is 1-300, are preferably 5-100.
14. preparation methods according to claim 12, is characterized in that, described sheet soft magnetism powder is one or more in flake iron powder or sheet iron-based, cobalt-based, Ni based soft magnetic powder, sheet soft magnetic ferrite powder.
15. preparation methods according to claim 12, is characterized in that, the auxiliary agent of the sheet soft magnetism powder containing 65-85wt% in described soft magnetism coating, the tamanori of 9-25wt%, the thinner of 5-15wt% and 1-5.5wt%.
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| CN201310248293.0A CN104231708B (en) | 2013-06-20 | 2013-06-20 | Soft magnetism coating used under multipole magnetostatic field and preparation method thereof |
| PCT/CN2014/075328 WO2014201898A1 (en) | 2013-06-20 | 2014-04-14 | Soft magnetic coating used in multipole static magnetic field and preparation method therefor |
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| CN201310248293.0A CN104231708B (en) | 2013-06-20 | 2013-06-20 | Soft magnetism coating used under multipole magnetostatic field and preparation method thereof |
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| WO2014201898A1 (en) | 2014-12-24 |
| CN104231708B (en) | 2017-03-15 |
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Address after: 511356 No.4, Canghai 4th Road, Yonghe Economic Development Zone, Luogang District, Guangzhou City, Guangdong Province Patentee after: Guangzhou xinlaifu New Material Co.,Ltd. Address before: 511356 No.4, Canghai 4th Road, Yonghe Economic Development Zone, Luogang District, Guangzhou City, Guangdong Province Patentee before: Guangzhou Newlife Magnet Electricity Co.,Ltd. |
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Application publication date: 20141224 Assignee: GUANGZHOU XINLAIFU MAGNETIC MATERIALS Co.,Ltd. Assignor: Guangzhou xinlaifu New Material Co.,Ltd. Contract record no.: X2024980003673 Denomination of invention: Soft magnetic coatings and their preparation methods for use in multipole static magnetic fields Granted publication date: 20170315 License type: Common License Record date: 20240329 |