CN110021468A - A kind of flexibility NdFeB material and preparation method thereof - Google Patents
A kind of flexibility NdFeB material and preparation method thereof Download PDFInfo
- Publication number
- CN110021468A CN110021468A CN201910436115.8A CN201910436115A CN110021468A CN 110021468 A CN110021468 A CN 110021468A CN 201910436115 A CN201910436115 A CN 201910436115A CN 110021468 A CN110021468 A CN 110021468A
- Authority
- CN
- China
- Prior art keywords
- ndfeb
- magnetic powder
- powder
- preparation
- auxiliary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
- H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
- H01F1/0576—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together pressed, e.g. hot working
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The invention proposes a kind of preparation method of flexible NdFeB material, granularity of magnet powder processing: by NdFeB magnetic powder with NdFeB magnetic powder Zhuan Yong Mo powder machine neodymium iron boron Ci Fen Mo to all passing through 100 mesh screens；Step 2: the processing of auxiliary material granularity: extracting rubber, resin, nylon 6 and auxiliary agent by mass percentage, matched；Step 3: material mixing is melted: the auxiliary material handled well in the magnetic powder and step 2 handled well in step 1 being mixed in mixer, and heating and melting；Step 4: molding: mixed material being sent into calender, moulding press and injection molding machine, is formed under magnetic field, obtains finished product.
Description
Technical field
The present invention relates to a kind of flexible NdFeB materials and preparation method thereof.
Background technique
The magnet that can keep it magnetic for a long time claims permanent magnet.Such as natural magnetite (magnetic iron ore) and artificial magnet's (aluminium
Nickel cobalt (alloy)) etc..In magnet in addition to permanent magnet, also there is the just magnetic electromagnet that need to be powered.Permanent magnet is also hard magnetic body, no
Easy loss of excitation is also not easy to be magnetized.If but permanent magnet is heated beyond Curie temperature, or is located in the environment of reversed high magnetic field intensity
In, magnetism also can be reduced or be disappeared.Some magnets enbrittle, and may rupture at high temperature.The highest of alnico magnet
It the use of temperature is more than 540 DEG C (1,000 °F), samarium-cobalt magnet and ferrite are about 300 DEG C (570 °F), neodymium magnet and soft magnet
About 140 DEG C (280 °F), but actual numerical value still can be different according to the crystal grain of material.And the material as magnetizer and electromagnet
Material is mostly soft magnetic bodies.Permanent magnet polarity will not change, and soft magnetic bodies polarity is become with added polarity of the magnetic field.They can
Attract irony object, we are this property magnetism.Ba, Sr ferrite are still the maximum permanent-magnet material of dosage at present, but
Its many application is gradually replaced by Nd-Fe-B class material.Also, the output value of current rare-earth permanent magnetic material has substantially exceeded
Ferrite permanent-magnet materials, the production of rare earth permanent-magnetic material have evolved into a big industry.From these materials produce magnet when, at
Striving for reaching theoretically granularity as small as possible in product magnet, preparation process is complicated, and it is at high cost, and neodymium iron boron stability is made not
Height, heat resistance is general, is not easy to form and demould.
In view of the above defect existing in the prior art, it is necessary to be further improved, make it more for practicability,
Actual use situation can be met.
Summary of the invention
Aiming at the problem that pointing out in background technique, the present invention proposes a kind of flexible NdFeB material and preparation method thereof.
The technical scheme of the present invention is realized as follows:
A kind of preparation method of flexibility NdFeB material, includes the following steps:
Step 1: granularity of magnet powder processing: by NdFeB magnetic powder with NdFeB magnetic powder Zhuan Yong Mo powder machine neodymium iron boron Ci Fen Mo extremely
All pass through 100 mesh screens；
Step 2: the processing of auxiliary material granularity: extracting rubber, resin, nylon 6 and auxiliary agent by mass percentage, matched；
Step 3: material mixing is melted: by the auxiliary material handled well in the magnetic powder and step 2 handled well in step 1 in mixing
Mixing in machine；
Step 4: molding: the material mixed being sent into calender, moulding press, injection molding machine, forms, obtains under magnetic field
Product.
The present invention is further arranged to, in step 3, in material mixing melting process, melt temperature control
At 130 DEG C -160 DEG C.
The present invention is further arranged to, and in steps of 5, the material mixed is made into embryo material or pellet, uses calender
And extruder.
A kind of flexibility NdFeB material, includes NdFeB magnetic powder 80%-95%, rubber or resin 3%-10%, auxiliary agent
1%-8%.
Using above-mentioned technical proposal, the invention has the benefit that
A kind of flexible NdFeB material provided by the present invention and preparation method thereof, is especially frictionally heating state in auxiliary material
With the help of molecular motion accelerate, preferably reach uniform mixing, guarantee that raw material and various auxiliary materials reach particle in mixing
Gradation is appropriate, uniformly mixed effect, while the auxiliary material composition and usage ratio added can ensure that the stabilization of product well
Property, heat resistance, and easy to form and demoulding, also have cost performance high, mechanical property is good, to reduce human input and set
The cost of standby investment and the energy, is more conducive to producing on a large scale.
Specific embodiment
Below in conjunction in the embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
The following present invention is illustrated:
A kind of preparation method of flexibility NdFeB material, includes the following steps:
Step 1: granularity of magnet powder processing: by NdFeB magnetic powder with NdFeB magnetic powder Zhuan Yong Mo powder machine neodymium iron boron Ci Fen Mo extremely
All pass through 100 mesh screens；
Step 2: the processing of auxiliary material granularity: extracting rubber, resin, nylon 6 and auxiliary agent by mass percentage, matched；
Step 3: material mixing is melted: by the auxiliary material handled well in the magnetic powder and step 2 handled well in step 1 in mixing
Mixing in machine；
Step 4: molding: the material mixed being sent into calender, moulding press, injection molding machine, forms, obtains under magnetic field
Product.
Wherein, in step 3, in material mixing melting process, melt temperature is controlled at 130 DEG C -160 DEG C.
Wherein, in steps of 5, the material mixed is made into embryo material or pellet, with calender and extruder.
A kind of flexibility NdFeB material, includes NdFeB magnetic powder 80%-95%, rubber or resin 3%-10%, auxiliary agent
1%-8%.
Using above-mentioned technical proposal, the invention has the benefit that
A kind of flexible NdFeB material provided by the present invention and preparation method thereof, is especially frictionally heating state in auxiliary material
With the help of molecular motion accelerate, preferably reach uniform mixing, guarantee that raw material and various auxiliary materials reach particle in mixing
Gradation is appropriate, uniformly mixed effect, while the auxiliary material composition and usage ratio added can ensure that the stabilization of product well
Property, heat resistance, and easy to form and demoulding, also have cost performance high, mechanical property is good, to reduce human input and set
The cost of standby investment and the energy, is more conducive to producing on a large scale.
Above-described is only presently preferred embodiments of the present invention, is not intended to limit the invention, all of the invention
Within spirit and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of preparation method of flexibility NdFeB material, includes the following steps:
Step 1: granularity of magnet powder processing: by NdFeB magnetic powder with NdFeB magnetic powder Zhuan Yong Mo powder machine neodymium iron boron Ci Fen Mo to whole
Pass through 100 mesh screens；
Step 2: the processing of auxiliary material granularity: extracting rubber, resin, nylon 6 and auxiliary agent by mass percentage, matched；
Step 3: material mixing is melted: by the auxiliary material handled well in the magnetic powder and step 2 handled well in step 1 in mixer
Mixing；
Step 4: molding: the material mixed being sent into calender, moulding press, injection molding machine, is formed under magnetic field, obtains finished product.
2. a kind of preparation method of flexible NdFeB material according to claim 1, it is characterised in that: in step 3,
In the material mixing melting process, melt temperature is controlled at 130 DEG C -160 DEG C.
3. a kind of preparation method of flexible NdFeB material according to claim 1, it is characterised in that: in steps of 5, will
The material mixed machine-shaping in the calender, moulding press, injection molding machine.
4. a kind of flexibility NdFeB material, it is characterised in that: include NdFeB magnetic powder 80%-95%, rubber or resin 3%-
10%, auxiliary agent 1%-8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910436115.8A CN110021468A (en) | 2019-05-23 | 2019-05-23 | A kind of flexibility NdFeB material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910436115.8A CN110021468A (en) | 2019-05-23 | 2019-05-23 | A kind of flexibility NdFeB material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110021468A true CN110021468A (en) | 2019-07-16 |
Family
ID=67194301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910436115.8A Pending CN110021468A (en) | 2019-05-23 | 2019-05-23 | A kind of flexibility NdFeB material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110021468A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1901322A (en) * | 2006-07-24 | 2007-01-24 | 广州金南磁塑有限公司 | Moulding press composite adhesive magnetic tile and its preparing method |
| CN101477866A (en) * | 2008-09-19 | 2009-07-08 | 广州金南磁塑有限公司 | Anisotropic flexible adhesion Nd-Fe-B magnets and manufacturing method thereof |
| CN102723165A (en) * | 2012-06-05 | 2012-10-10 | 义乌市磁莱福磁铁有限公司 | Bonded NdFeB (neodymium, ferrum and boron) strong magnet and preparation method thereof |
| CN102779603A (en) * | 2012-07-03 | 2012-11-14 | 大地熊（苏州）磁铁有限公司 | Flexible bonding neodymium iron boron magnet and preparation process thereof |
| CN104599833A (en) * | 2015-01-16 | 2015-05-06 | 浙江和也健康科技有限公司 | High-toughness rare earth flexible magnetic strip and production method thereof |
| CN107464646A (en) * | 2017-09-27 | 2017-12-12 | 杭州天时亿科技有限公司 | A kind of preparation method of high evenness adhesive bond Ru-Fe-Mn |
-
2019
- 2019-05-23 CN CN201910436115.8A patent/CN110021468A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1901322A (en) * | 2006-07-24 | 2007-01-24 | 广州金南磁塑有限公司 | Moulding press composite adhesive magnetic tile and its preparing method |
| CN101477866A (en) * | 2008-09-19 | 2009-07-08 | 广州金南磁塑有限公司 | Anisotropic flexible adhesion Nd-Fe-B magnets and manufacturing method thereof |
| CN102723165A (en) * | 2012-06-05 | 2012-10-10 | 义乌市磁莱福磁铁有限公司 | Bonded NdFeB (neodymium, ferrum and boron) strong magnet and preparation method thereof |
| CN102779603A (en) * | 2012-07-03 | 2012-11-14 | 大地熊（苏州）磁铁有限公司 | Flexible bonding neodymium iron boron magnet and preparation process thereof |
| CN104599833A (en) * | 2015-01-16 | 2015-05-06 | 浙江和也健康科技有限公司 | High-toughness rare earth flexible magnetic strip and production method thereof |
| CN107464646A (en) * | 2017-09-27 | 2017-12-12 | 杭州天时亿科技有限公司 | A kind of preparation method of high evenness adhesive bond Ru-Fe-Mn |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104575920B (en) | Rare-earth permanent magnet and preparation method thereof | |
| CN106952703B (en) | A kind of high temperature resistant high magnetic characteristics permanent-magnet material | |
| CN106158206A (en) | A kind of preparation method of neodymium iron boron powder | |
| CN104952575B (en) | R T B systems permanent magnet | |
| CN110444388B (en) | Preparation method of strong-toughness high-stability neodymium iron boron magnet | |
| CN108517455A (en) | A kind of nanocrystalline rare-earth permanent magnetic material and preparation method thereof with double main phase structures | |
| CN103317145B (en) | Chemical method prepares the method for samarium-cobalt magnetic powder | |
| CN105478787A (en) | Oxidization method of rapidly-quenched bonded neodymium iron boron (NdFeB) permanent magnet powder | |
| CN106024246A (en) | Corrosion-resistant neodymium-iron-boron magnetic material and preparation method thereof | |
| CN110021468A (en) | A kind of flexibility NdFeB material and preparation method thereof | |
| CN105623240A (en) | Anisotropic high-molecular permanent magnetic compound material and preparation method therefor | |
| US7704438B2 (en) | Process for producing a permanently magnetic molding | |
| JP6780693B2 (en) | Manufacturing method of bond magnets and compounds for bond magnets | |
| CN107464646A (en) | A kind of preparation method of high evenness adhesive bond Ru-Fe-Mn | |
| CN205981403U (en) | A title powder device for ndfeb powder | |
| CN109036752B (en) | A kind of method that nitrogen class rare earth compounding prepares high-coercive force samarium iron nitrogen magnet | |
| CN107851497B (en) | Artificial permanent magnet and method for manufacturing the same | |
| JP2016066675A (en) | Rare earth isotropic bond magnet | |
| CN102982938A (en) | Wear-resisting neodymium-iron-boron permanent magnet material and preparation method thereof | |
| CN102982941A (en) | Wear-resisting neodymium-iron-boron permanent magnet material | |
| CN102982937A (en) | Preparation method of wear-resisting neodymium-iron-boron permanent magnet material | |
| JP2004111640A (en) | Manufacturing method of anisotropic injection molding magnet and injection molding magnet obtained thereby | |
| CN106024248A (en) | Neodymium-iron-boron magnetic material and preparation method thereof | |
| CN105206416A (en) | Orientation press method of neodymium-iron-boron magnet | |
| Sardjono et al. | Mechanical and magnetic properties of flexible magnet Ba-hexa Ferrite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190716 |
|
| RJ01 | Rejection of invention patent application after publication |