CN106783134A - A kind of surface is coated with the preparation method of the viscose glue magnet assembly of protective coating - Google Patents
A kind of surface is coated with the preparation method of the viscose glue magnet assembly of protective coating Download PDFInfo
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- CN106783134A CN106783134A CN201710041406.8A CN201710041406A CN106783134A CN 106783134 A CN106783134 A CN 106783134A CN 201710041406 A CN201710041406 A CN 201710041406A CN 106783134 A CN106783134 A CN 106783134A
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- viscose glue
- magnet assembly
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- preparation
- cleaning
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- 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
- 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
- H01F1/032—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 hard-magnetic materials
- H01F1/04—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 hard-magnetic materials metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The preparation method of the viscose glue magnet assembly of protective coating is coated with the invention discloses a kind of surface, it is comprised the following steps：Polylith Sintered NdFeB magnet is carried out into viscose glue and is assembled into viscose glue magnet assembly, Shot Blasting is carried out to viscose glue magnet assembly, cleaning treatment, using the surface deposition layer of metal layer of magnetron sputtering method viscose glue magnet assembly after cleaning, in the surface cathode electrophoretic painting epoxy coating of metal level.The present invention is using the magnetron sputtering deposition coat of metal as intermediate layer, not only overcome the non-conductive shortcoming that cannot carry out ability cathode electrophoresis epoxy coating coating of magnet after viscose glue, and avoid magnet surface in conventional cathode electrophoresis process be directly in contact with electrophoresis liquid cause magnet corrode and plating damage layer shortcoming, while also improving the adhesion between organic resin epoxy and sintered NdFeB matrix.
Description
Technical field
The present invention relates to technical field of magnetic materials, and in particular to a kind of surface is coated with the viscose glue magnet group of protective coating
The preparation method of part.
Background technology
It is just extensive with its excellent magnetic property and rich in natural resources deposit since NdFeB permanent magnets come out from nineteen eighty-three
It is applied to the fields such as automobile, electronics, electric power, Aero-Space, medicine equipment.Sintered neodymium iron boron material is the pillar of permanent magnetism industry,
The characteristics of having heterogeneous structure due to sintered ndfeb permanent magnet body, crystal boundary rich-Nd phase activity is strong, electrochemical potential difference between each phase
It is larger, cause magnet exist corrosion resistance it is poor, from powder phenomenon-tion it is serious the shortcomings of so that seriously limiting it uses scope.Therefore,
The anti-corrosion sex chromosome mosaicism for improving sintered ndfeb permanent magnet body is extremely urgent.
Currently, mainly have following two for improving the corrosion proof method of sintered ndfeb permanent magnet body：One is addition alloy unit
Plain method, but the magnetic property of magnet is reduced to a certain extent；Two is to add overcoat in magnet surface, although can completely cut off magnetic
Body and the corrosive environment in the external world, so that effectively improve the corrosion resistance of magnet, but coating can greatly increase the life of magnet
Produce cost and cause environmental pollution；And surfacecti proteon cannot fundamentally to solve magnet anti-corrosion, some coating once destroy, instead
And galvanic corrosion can be formed with magnet matrix, accelerate the efflorescence failure of magnet.
Because magnet is different using field, the requirement to magnet corrosion resisting property is also not quite similar, therefore, should be for difference
It is required that and use different surface anticorrosion technological measures, in this way in wind-power electricity generation application field, it is desirable to sintered ndfeb permanent magnet physical efficiency
The change of extreme natural environment is enough born, with long-time stability and non-maintaining property, therefore to the surfacecti proteon work of NdFeB permanent magnets
Skill proposes requirement higher.At present, the sintered NdFeB magnet surface anticorrosion measure of wind power generation field application is ability cathode electrophoresis
Epoxy coating.But because the size of the sintered ndfeb permanent magnet body for wind power generating set is larger, using current magnets system
The magnetic property uniformity of bulk magnet prepared by standby technique, uniformity are extremely difficult to actually used requirement.In actual applications
Polylith magnet can only be carried out with adhesive that after bonding assembling is processed requirement of the wind power generating set to magnet size could be met,
And by the magnet after viscose glue treatment without electric conductivity, it is impossible to epoxy coating is carried out in viscose glue magnet surface using electrophoresis process
Preparation.Therefore, in order that viscose glue magnet is conductive, and it is easy to the preparation of subsequent ability cathode electrophoresis epoxy coating, therefore
Need to prepare one layer of conductive layer in viscose glue magnet surface, then again using ability cathode electrophoresis epoxy resin technology in viscose glue magnet surface
Prepare epoxide resin protective coating.And the electroplating technology for being currently used in the preparation of Sintered NdFeB magnet surface metal plating layer can not be real
The uniform coating of existing magnet surface.Meanwhile, in plated film pretreatment process, traditional acid cleaning process can cause larger corruption to viscose glue
Erosion, causes viscose glue workpiece adhesion to decline, or even cause coming off for viscose glue component.So will be using dry method pre-treating technology to magnetic
Body carries out pre-treatment, and the coating of follow-up coating is then carried out again.
The content of the invention
Because magnet assembly is non-conductive after viscose glue, cause subsequently carry out it painting of ability cathode electrophoresis epoxy coating
Cover, and viscose glue component magnet can not carry out traditional pickling pre-treating technology.So as to cause between subsequent plating layer and magnet
Adhesion declines.
To solve the above problems, the present invention provides the preparation side that a kind of surface is coated with the viscose glue magnet assembly of protective coating
Law technology scheme is as follows：
A kind of surface is coated with the preparation method of the viscose glue magnet assembly of protective coating, and it is comprised the following steps：
(1) polylith Sintered NdFeB magnet is carried out into viscose glue and is assembled into viscose glue magnet assembly,
(2) Shot Blasting is carried out to viscose glue magnet assembly,
(3) cleaning treatment,
(4) the surface deposition layer of metal layer of the viscose glue magnet assembly using magnetron sputtering method after cleaning,
(5) in the surface cathode electrophoretic painting epoxy coating of metal level.
Further scheme, the viscose glue assembling in the step (1) is to polylith sintered NdFeB magnetic using metal Instant cement
Body carries out bonding and is assembled integrally.
Further scheme, the material of the Shot Blasting in the step (2) is 1 for Brown Alundum and bead in mass ratio：
The mixed sand that (4~6) mix, the time of Shot Blasting is 2~5min.
Further scheme, the cleaning treatment in the step (3) refers to that the viscose glue magnet assembly after ball blast is carried out successively
It is cleaned by ultrasonic and Ar particle bombardments cleaning.
Further scheme, the ultrasonic cleaning is that magnet assembly is placed in into 2~4min of ultrasonic cleaning in deionized water；Institute
It is that the viscose glue magnet assembly after ultrasonic cleaning is fitted into stove in cylinder mould to state Ar particle bombardments cleaning, is subsequently placed in ion plating equipment
It is interior, bombardment processing is carried out to the surface of magnet assembly using circulation argon ion bombardment technique, to remove the oxygen on magnet assembly surface
Change film.
Further scheme, the vacuum inside the ion plating equipment is 2.5~9Pa, argon ion flow is 125~
185sccm, bombardment time is 20~40min.
Further scheme, the metal level in the step (4) is Cu, Ti or Zn, the technological parameter of the magnetron sputtering method
For：Vacuum be 0.2~0.4Pa, Ar flows be 45~95sccm, bias be 110~160V, magnetron sputtering electric current be 11~
15A, the magnetron sputtering time is 20~40min.
The present invention deposits layer of metal layer on the surface of viscose glue magnet assembly using magnetron sputtering technique, used as magnet assembly
Conductive layer, be remarkably improved the adhesion of organic coating and NdFeB matrixes in the surface coating epoxy coating of conductive layer,
The barrier propterty of coating is obviously improved, wind power generating set is met to the corrosion proof requirement of sintered NdFeB magnet.And avoid
Holiday of the magnet assembly in the follow-up cathode electro-coating technique caused by directly contact electrophoresis liquid.And in deposited metal
Before layer, Shot Blasting is carried out to magnet using the mixed sand of Brown Alundum and bead, so as to increase connecing for magnet and metal level
Contacting surface is accumulated, that is, improve the adhesion between matrix/coating.
It is of the invention with following technique effect by above technical scheme：
1st, the present invention carries out surface clean using ball blast technique to viscose glue magnet assembly, can not only remove the oxygen of magnet surface
Change film, and the contact area between matrix and epoxy coating can be increased, so as to improve the combination between coating and matrix
Power.
2nd, on the surface of magnet assembly using magnetron sputtering technique uniform deposition layer of metal layer, have viscose glue magnet assembly
It is conductive, it is easy to the preparation of subsequent ability cathode electrophoresis epoxy coating, and avoid magnet in conventional cathode electrophoresis process
Surface is directly in contact with electrophoresis liquid and causes the shortcoming of magnet corrosion.
3rd, the present invention uses ability cathode electrophoresis technique application last layer epoxy coating on the surface of metal level, can be notable
The adhesion of organic coating and NdFeB matrixes is improved, and greatly improves the decay resistance of viscose glue magnet assembly, meet wind-force hair
Group of motors is to the corrosion proof requirement of sintered NdFeB magnet.
Specific embodiment
Illustrate present disclosure below in conjunction with specific embodiments.
Embodiment 1：A kind of preparation method of viscose glue magnet assembly surface protection coating, comprises the following steps：
(1) from the block Sintered NdFeB magnet that four block specifications are 20 × 10 × 2mm (by Anhui the earth bear new material stock
Part Co., Ltd provides, the trade mark：N48), block Sintered NdFeB magnet is carried out by viscose glue using metal Instant cement (ergo5800)
It is assembled integrally；
(2) with the mixed sand of Brown Alundum and bead, (mass ratio is 1：4) ball blast 2min；
(3) after magnet assembly being cleaned by ultrasonic into 2min in deionized water solution, it is fitted into stove in cylinder mould, then be placed in ion
In coating machine, bombardment processing 20min is carried out to the surface of magnet assembly using circulation argon ion bombardment technique, keep vacuum chamber
Vacuum is 2.5Pa, Ar2Flow is 125sccm；
(4) surface of viscose glue magnet assembly after cleaning deposits one layer of layers of copper using magnetron sputtering technique, keeps vacuum
Room vacuum is 2 × 10-1Pa, Ar flow are 45sccm, and it is 110V to bias, and magnetron sputtering electric current is 11A, magnetron sputtering 20min；
(5) in the layers of copper external coating epoxy coating for being deposited by the way of cathode electro-coating.
Reference examples 1
In order to be contrasted with embodiment 1, (1) carries out four pieces of block shaped magnets the step of reference examples 1 are only according to embodiment 1
Viscose glue is assembled integrally.It is the block Sintered NdFeB magnet of 20 × 10 × 2mm i.e. from four block specifications, using metal Instant cement
(ergo5800) block Sintered NdFeB magnet is carried out into viscose glue to be assembled integrally.
Salt spray test is carried out respectively to sample prepared by embodiment 1 and reference examples 1, the condition of its salt spray test is：Experiment
Case temperature is 38 DEG C, and brine strength is 5% (volume ratio), using the test method of continuous spraying.Concrete outcome see the table below 1：
Table 1：Salt spray test result
| Sample | Embodiment 1 | Reference examples 1 |
| Salt spray test (h) | 720 | 0.5 |
As it can be seen from table 1 the viscose glue magnet assembly being prepared from using preparation method of the present invention, is greatly improved it
Salt spray corrosion resistance, the salt spray test 720h of embodiment 1 is 1440 times of reference examples 1.
Embodiment 2
(1) from five pieces of block Sintered NdFeB magnets that specification is 20 × 10 × 2mm (by Anhui the earth bear new material stock
Part Co., Ltd provides, the trade mark：N48), block Sintered NdFeB magnet is carried out by viscose glue using metal Instant cement (ergo5800)
It is assembled integrally；
(2) in mass ratio it is 1 with Brown Alundum and bead：5 mixed sand ball blast 3.5min；
(3) after magnet being cleaned by ultrasonic into 3min in deionized water solution, reinstall in stove in cylinder mould, be subsequently placed in ion
In coating machine, bombardment processing 30min is carried out to magnet assembly surface using circulation argon ion bombardment technique, keep vacuum chamber vacuum
It is 5.75Pa to spend, and Ar flows are 155sccm；
(4) one layer of Ti film is deposited using magnetron sputtering technique on viscose glue magnet assembly surface, keeps vacuum degree in vacuum chamber
It is 0.3Pa, Ar flows are 70sccm, and it is 135V to bias, magnetron sputtering electric current is 13A, magnetron sputtering 30min；
(5) in the external coating epoxy coating of the layer of titanium metal for being deposited by the way of cathode electro-coating.
Reference examples 2
In order to be contrasted with embodiment 2, (1) carries out viscose glue and is assembled integrally to magnet the step of only according to embodiment 2.
Will five block specifications for 20 × 10 × 2mm block Sintered NdFeB magnet using metal Instant cement (ergo5800) by bulk burn
Knot neodymium iron boron magnetic body carries out viscose glue and is assembled integrally.
(condition of its salt spray test is to carry out salt spray test respectively to sample prepared by embodiment 2 and reference examples 2：Experiment
Case temperature is 38 DEG C, and brine strength is 5% (volume ratio), using the test method of continuous spraying), concrete outcome see the table below 2：
The salt spray test result of table 2
| Sample | Embodiment 2 | Reference examples 2 |
| Salt spray test (h) | 723 | 0.5 |
From table 2 it can be seen that the viscose glue magnet assembly being prepared from using preparation method of the present invention, is greatly improved it
Salt spray corrosion resistance, the salt spray test 723h of embodiment 2 is 1446 times of reference examples 2.
Embodiment 3
(1) six pieces of block Sintered NdFeB magnets that specification is 20 × 10 × 2mm are used (by Anhui the earth bear new material strand
Part Co., Ltd provides, the trade mark：N48), its viscose glue is assembled integrally using metal Instant cement (ergo5800).
(2) in mass ratio it is 1 using Brown Alundum and bead：6 mixed sand, to the shotblasting 5min of magnet assembly
(3) magnet assembly is cleaned by ultrasonic after 4min in deionized water solution and is fitted into stove in cylinder mould, be subsequently placed in from
In sub- coating machine, bombardment processing 40min is carried out to NdFeB magnet assemblies surface using circulation argon ion bombardment technique, keep true
Empty room vacuum is 9Pa, and Ar flows are 185sccm；
(4) viscose glue magnet assembly surface after cleaning deposits one layer of Zn film using magnetron sputtering technique, keeps vacuum
Room vacuum is 0.4Pa, and Ar flows are 95sccm, and it is 160V to bias, and magnetron sputtering electric current is 15A, magnetron sputtering 40min；
(5) in the metal Zn layer surface application epoxy coatings for being deposited by the way of cathode electro-coating.
Reference examples 3
(1) it is six pieces of block Sintered NdFeB magnets of 20 × 10 × 2mm to use specification, using metal Instant cement
(ergo5800) its viscose glue is assembled integrally.
(2) in mass ratio it is 1 using Brown Alundum and bead：6 mixed sand, to the shotblasting 5min of magnet assembly
(3) magnet assembly is cleaned by ultrasonic after 4min in deionized water solution and is fitted into stove in cylinder mould, be subsequently placed in from
In sub- coating machine, bombardment processing 40min is carried out to NdFeB magnet assemblies surface using circulation argon ion bombardment technique, keep true
Empty room vacuum is 9Pa, and Ar flows are 185sccm；
(4) viscose glue magnet assembly surface after cleaning deposits one layer of Zn film using magnetron sputtering technique, keeps vacuum
Room vacuum is 0.4Pa, and Ar flows are 95sccm, and it is 160V to bias, and magnetron sputtering electric current is 15A, magnetron sputtering 40min.
Reference examples 4
Block shaped magnet is carried out viscose glue and is assembled integrally by the step of only according to embodiment 3 (1).
(condition of salt spray test is to carry out salt spray test respectively to sample prepared by embodiment 3 and reference examples 3,4：Experiment
Case temperature is 38 DEG C, and brine strength is 5% (volume ratio), using the test method of continuous spraying), concrete outcome see the table below 3：
The salt spray test result of table 3
| Sample | Embodiment 3 | Reference examples 3 | Reference examples 4 |
| Salt spray test (h) | 721 | 60 | 0.5 |
From table 3 it can be seen that using the viscose glue magnet assembly that preparation method of the present invention is prepared from compare reference examples 3,
4, its salt spray corrosion resistance is greatly improved, the salt spray test 720h of embodiment 1 is 1442 times, reference examples of reference examples 4
3 more than 12 times.
Merely illustrating the principles of the invention described in the embodiment above and specification, do not depart from spirit of the invention and
Various changes and modifications of the present invention are possible on the premise of scope, and these changes and improvements both fall within claimed invention model
In enclosing.
Claims (7)
1. a kind of surface is coated with the preparation method of the viscose glue magnet assembly of protective coating, it is characterised in that：Comprise the following steps：
（1）Polylith Sintered NdFeB magnet is carried out into viscose glue and is assembled into viscose glue magnet assembly,
（2）Shot Blasting is carried out to viscose glue magnet assembly,
（3）Cleaning treatment,
（4）Using the surface deposition layer of metal layer of magnetron sputtering method viscose glue magnet assembly after cleaning,
（5）In the surface cathode electrophoretic painting epoxy coating of metal level.
2. preparation method according to claim 1, it is characterised in that：The step（1）In viscose glue assembling be using gold
Category Instant cement carries out bonding and is assembled integrally to polylith Sintered NdFeB magnet.
3. preparation method according to claim 1, it is characterised in that：The step（2）In the material of Shot Blasting be
Brown Alundum and bead are 1 in mass ratio：（4~6）The mixed sand for mixing, the time of Shot Blasting is 2~5min.
4. preparation method according to claim 1, it is characterised in that：The step（3）In cleaning treatment refer to throw
Viscose glue magnet assembly after ball carries out being cleaned by ultrasonic and Ar particle bombardments cleaning successively.
5. preparation method according to claim 4, it is characterised in that：It is described ultrasonic cleaning be by magnet assembly be placed in from
It is cleaned by ultrasonic 2~4min in sub- water；The Ar particle bombardments cleaning is to load in stove the viscose glue magnet assembly after ultrasonic cleaning
In cylinder mould, it is subsequently placed in ion plating equipment, the surface of magnet assembly is carried out at bombardment using circulation argon ion bombardment technique
Reason, to remove the oxide-film on magnet assembly surface.
6. preparation method according to claim 4, it is characterised in that：Vacuum inside the ion plating equipment is 2.5
~9Pa, argon ion flow is 125~185sccm, and bombardment time is 20~40min.
7. preparation method according to claim 1, it is characterised in that：The step（4）In metal level for Cu, Ti or
Zn, the technological parameter of the magnetron sputtering method is：Vacuum is 0.2~0.4Pa, Ar flows are 45~95 sccm, bias is
110~160 V, magnetron sputtering electric current is 11~15 A, and the magnetron sputtering time is 20~40 min.
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| CN201710041406.8A CN106783134A (en) | 2017-01-18 | 2017-01-18 | A kind of surface is coated with the preparation method of the viscose glue magnet assembly of protective coating |
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| CN201710041406.8A CN106783134A (en) | 2017-01-18 | 2017-01-18 | A kind of surface is coated with the preparation method of the viscose glue magnet assembly of protective coating |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108053968A (en) * | 2017-12-14 | 2018-05-18 | 天津邦特磁性材料有限公司 | A kind of high energy sintered Nd-Fe-B permanent magnetic material |
| CN109686558A (en) * | 2018-12-25 | 2019-04-26 | 安徽大地熊新材料股份有限公司 | A kind of preparation method of high-corrosion resistance Sintered NdFeB magnet |
| CN115976452A (en) * | 2022-12-21 | 2023-04-18 | 哈尔滨工业大学 | Treatment method for inhibiting surface discharge of magnet in plasma environment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0190461A2 (en) * | 1984-12-24 | 1986-08-13 | Sumitomo Special Metals Co., Ltd. | Process for producing permanent magnets and permanent magnet |
| JP2002270415A (en) * | 2001-03-12 | 2002-09-20 | Tdk Corp | R-Fe-B PERMANENT MAGNET |
| JP2012199462A (en) * | 2011-03-23 | 2012-10-18 | Aichi Steel Works Ltd | Rare earth bond magnet, rare earth magnet powder and manufacturing method therefor, and compound for rare earth bond magnet |
| CN103572217A (en) * | 2013-11-11 | 2014-02-12 | 广州有色金属研究院 | Neodymium-iron-boron permanent magnetic material surface protection layer and preparation method thereof |
| CN204067030U (en) * | 2014-07-21 | 2014-12-31 | 安徽大地熊新材料股份有限公司 | Automatic bonding equipment |
| CN105420669A (en) * | 2015-11-29 | 2016-03-23 | 中国人民解放军装甲兵工程学院 | Vapor deposition method used for anticorrosion pretreatment of permanent magnet |
-
2017
- 2017-01-18 CN CN201710041406.8A patent/CN106783134A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0190461A2 (en) * | 1984-12-24 | 1986-08-13 | Sumitomo Special Metals Co., Ltd. | Process for producing permanent magnets and permanent magnet |
| JP2002270415A (en) * | 2001-03-12 | 2002-09-20 | Tdk Corp | R-Fe-B PERMANENT MAGNET |
| JP2012199462A (en) * | 2011-03-23 | 2012-10-18 | Aichi Steel Works Ltd | Rare earth bond magnet, rare earth magnet powder and manufacturing method therefor, and compound for rare earth bond magnet |
| CN103572217A (en) * | 2013-11-11 | 2014-02-12 | 广州有色金属研究院 | Neodymium-iron-boron permanent magnetic material surface protection layer and preparation method thereof |
| CN204067030U (en) * | 2014-07-21 | 2014-12-31 | 安徽大地熊新材料股份有限公司 | Automatic bonding equipment |
| CN105420669A (en) * | 2015-11-29 | 2016-03-23 | 中国人民解放军装甲兵工程学院 | Vapor deposition method used for anticorrosion pretreatment of permanent magnet |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108053968A (en) * | 2017-12-14 | 2018-05-18 | 天津邦特磁性材料有限公司 | A kind of high energy sintered Nd-Fe-B permanent magnetic material |
| CN109686558A (en) * | 2018-12-25 | 2019-04-26 | 安徽大地熊新材料股份有限公司 | A kind of preparation method of high-corrosion resistance Sintered NdFeB magnet |
| CN115976452A (en) * | 2022-12-21 | 2023-04-18 | 哈尔滨工业大学 | Treatment method for inhibiting surface discharge of magnet in plasma environment |
| CN115976452B (en) * | 2022-12-21 | 2023-06-16 | 哈尔滨工业大学 | Treatment method for inhibiting surface discharge of magnet in plasma environment |
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Application publication date: 20170531 |