CN106229138A - A kind of raising neodymium iron boron thin slice conforming method of magnet steel magnetic property - Google Patents
A kind of raising neodymium iron boron thin slice conforming method of magnet steel magnetic property Download PDFInfo
- Publication number
- CN106229138A CN106229138A CN201610566835.2A CN201610566835A CN106229138A CN 106229138 A CN106229138 A CN 106229138A CN 201610566835 A CN201610566835 A CN 201610566835A CN 106229138 A CN106229138 A CN 106229138A
- Authority
- CN
- China
- Prior art keywords
- iron boron
- neodymium iron
- magnet steel
- lamellar
- thin slice
- 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
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The invention discloses a kind of raising neodymium iron boron thin slice conforming method of magnet steel magnetic property, feature is to take non-magnetic qualified neodymium iron boron lamellar blank, and the unmagnetized face of lamellar blank is carried out roughing；And the lamellar blank after roughing is deoiled, removes glue, and dry with sawdust；Then lamellar blank being put into sintering furnace and carries out tempering processing, afterwards, the temperature in stove to be sintered is come out of the stove after being less than 50 DEG C；After the temperature of lamellar blank is down to room temperature, the size of lamellar blank is carried out polish, to meet the final size requirement of product, obtain lamellar semi-finished product；Finally lamellar semi-finished product are magnetized and obtain neodymium iron boron thin slice magnet steel；Advantage is that the method is applicable to magnetizing direction and is not higher than the magnet steel of 1.5mm, the neodymium iron boron thin slice magnet steel magnetic property concordance processing the same batch obtained through this method has preferably lifting, and magnetic property (table magnetic, the magnetic flux) concordance of neodymium iron boron thin slice magnet steel can be promoted to ± 1%～3% after testing.
Description
Technical field
The present invention relates to the processing of Neodymium iron boron magnetic product, particularly relate to a kind of raising neodymium iron boron thin slice magnet steel magnetic property one
The method of cause property.
Background technology
Neodymium iron boron is the high-quality magnetic material of processing Magnet (magnet steel), and Neodymium iron boron magnetic product can be added according to the market demand
Work becomes variously-shaped.Wherein, neodymium iron boron thin slice magnet steel is the most all used for electronic product, and with the one of a collection of thin slice magnet steel magnetic property
Cause property directly affects the concordance of same batch electronic product performance, and thin slice magnet steel magnetic property concordance is the best, and electronic product is transported
Turn the most stable.
Summary of the invention
The technical problem to be solved is to provide one, and can to improve neodymium iron boron thin slice magnet steel magnetic property conforming
Method.
The present invention solves the technical scheme that above-mentioned technical problem used: a kind of improve neodymium iron boron thin slice magnet steel magnetic property
Conforming method, including step in detail below:
(1), take non-magnetic qualified neodymium iron boron lamellar blank, the unmagnetized face of lamellar blank is carried out roughing；
(2), the lamellar blank after roughing is deoiled, removes glue, and dry with sawdust；
(3), by lamellar blank putting into sintering furnace and carry out tempering processing, afterwards, the temperature in stove to be sintered goes out after being less than 50 DEG C
Stove；
(4), after the temperature of lamellar blank is down to room temperature, the size of lamellar blank is carried out polish, to meet product
Whole dimensional requirement, obtains flake semi-finished product；
(5), flake semi-finished product are magnetized and obtain neodymium iron boron thin slice magnet steel.
Described step (3) specifically comprises the processes of:
(3-1), lamellar blank is put into sintering furnace after, to sintering furnace evacuation, make the vacuum in sintering furnace less than 1Pa；
(3-2), the temperature in sintering furnace is risen to 450～460 DEG C with the speed of 3～8 DEG C/min, and be incubated 0～20 min；
(3-3), by sintering furnace temperature continue be warming up to 460～500 DEG C with the speed of 3～8 DEG C/min, and be incubated 180～
240min；
(3-4) come out of the stove after, the temperature in sintering furnace being cooled to 50 DEG C with the speed of 5～7 DEG C/min.
Compared with prior art, it is an advantage of the invention that the method is applicable to magnetizing direction and is not higher than the magnet steel of 1.5mm, warp
The neodymium iron boron thin slice magnet steel magnetic property concordance crossing the same batch that this method processing obtains has preferably lifting, neodymium iron boron after testing
Magnetic property (table magnetic, the magnetic flux) concordance of thin slice magnet steel can be promoted to ± 1%～3%；Additionally, the method also can carry effectively
The HCJ (Hcj) of high thin slice magnet steel, about promotes 200～800 (Oe), it is possible to improve the squareness of thin slice magnet steel, greatly
About can promote squareness 1～5%, the binding force of cladding material of thin slice magnet steel also improves a lot.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment one: a kind of raising neodymium iron boron thin slice conforming method of magnet steel magnetic property, including step in detail below:
(1), take non-magnetic qualified neodymium iron boron lamellar blank, the unmagnetized face of lamellar blank is carried out roughing；
(2), the lamellar blank after roughing is deoiled, removes glue, and dry with sawdust；
(3), by lamellar blank put into sintering furnace and carry out tempering processing, specifically comprises the processes of:
(3-1), lamellar blank is put into sintering furnace after, to sintering furnace evacuation, make the vacuum in sintering furnace less than 1Pa；
(3-2), the temperature in sintering furnace is risen to 460 DEG C with the speed of 5 DEG C/min, and be incubated 240min；
(3-3) come out of the stove after, the temperature in sintering furnace being cooled to 50 DEG C with the speed of 6 DEG C/min；
(4), after the temperature of lamellar blank is down to room temperature, the size of lamellar blank is carried out polish, to meet product
Whole dimensional requirement, obtains flake semi-finished product；
(5), flake semi-finished product are magnetized and obtain neodymium iron boron thin slice magnet steel.
Embodiment two: a kind of raising neodymium iron boron thin slice conforming method of magnet steel magnetic property, including step in detail below:
(1), take non-magnetic qualified neodymium iron boron lamellar blank, the unmagnetized face of lamellar blank is carried out roughing；
(2), the lamellar blank after roughing is deoiled, removes glue, and dry with sawdust；
(3), by lamellar blank put into sintering furnace and carry out tempering processing, specifically comprises the processes of:
(3-1), lamellar blank is put into sintering furnace after, to sintering furnace evacuation, make the vacuum in sintering furnace less than 1Pa；
(3-2), the temperature in sintering furnace is risen to 450 DEG C with the speed of 4 DEG C/min, and be incubated 20 min；
(3-3), continue to be warming up to 500 DEG C with the speed of 8 DEG C/min by the temperature in sintering furnace, and be incubated 180min；
(3-4) come out of the stove after, the temperature in sintering furnace being cooled to 50 DEG C with the speed of 7 DEG C/min；
(4), after the temperature of lamellar blank is down to room temperature, the size of lamellar blank is carried out polish, to meet product
Whole dimensional requirement, obtains flake semi-finished product；
(5), flake semi-finished product are magnetized and obtain neodymium iron boron thin slice magnet steel.
Embodiment three: a kind of raising neodymium iron boron thin slice conforming method of magnet steel magnetic property, including step in detail below:
(1), take non-magnetic qualified neodymium iron boron lamellar blank, the unmagnetized face of lamellar blank is carried out roughing；
(2), the lamellar blank after roughing is deoiled, removes glue, and dry with sawdust；
(3), by lamellar blank put into sintering furnace and carry out tempering processing, specifically comprises the processes of:
(3-1), lamellar blank is put into sintering furnace after, to sintering furnace evacuation, make the vacuum in sintering furnace less than 1Pa；
(3-2), the temperature in sintering furnace is risen to 460 DEG C with the speed of 8 DEG C/min, and be incubated 10 min；
(3-3), continue to be warming up to 480 DEG C with the speed of 3 DEG C/min by the temperature in sintering furnace, and be incubated 200min；
(3-4) come out of the stove after, the temperature in sintering furnace being cooled to 50 DEG C with the speed of 5 DEG C/min；
(4), after the temperature of lamellar blank is down to room temperature, the size of lamellar blank is carried out polish, to meet product
Whole dimensional requirement, obtains flake semi-finished product；
(5), flake semi-finished product are magnetized and obtain neodymium iron boron thin slice magnet steel.
Claims (2)
1. one kind is improved the neodymium iron boron thin slice conforming method of magnet steel magnetic property, it is characterised in that: include step in detail below:
(1), take non-magnetic qualified neodymium iron boron lamellar blank, the unmagnetized face of lamellar blank is carried out roughing；
(2), the lamellar blank after roughing is deoiled, removes glue, and dry with sawdust；
(3), by lamellar blank putting into sintering furnace and carry out tempering processing, afterwards, the temperature in stove to be sintered goes out after being less than 50 DEG C
Stove；
(4), after the temperature of lamellar blank is down to room temperature, the size of lamellar blank is carried out polish, to meet product
Whole dimensional requirement, obtains flake semi-finished product；
(5), flake semi-finished product are magnetized and obtain neodymium iron boron thin slice magnet steel.
2. a kind of raising neodymium iron boron thin slice conforming method of magnet steel magnetic property as claimed in claim 1, it is characterised in that: institute
The step (3) stated specifically comprises the processes of:
(3-1), lamellar blank is put into sintering furnace after, to sintering furnace evacuation, make the vacuum in sintering furnace less than 1Pa；
(3-2), the temperature in sintering furnace is risen to 450～460 DEG C with the speed of 3～8 DEG C/min, and be incubated 0～20 min；
(3-3), by sintering furnace temperature continue be warming up to 460～500 DEG C with the speed of 3～8 DEG C/min, and be incubated 180～
240min；
(3-4) come out of the stove after, the temperature in sintering furnace being cooled to 50 DEG C with the speed of 5～7 DEG C/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566835.2A CN106229138A (en) | 2016-07-19 | 2016-07-19 | A kind of raising neodymium iron boron thin slice conforming method of magnet steel magnetic property |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610566835.2A CN106229138A (en) | 2016-07-19 | 2016-07-19 | A kind of raising neodymium iron boron thin slice conforming method of magnet steel magnetic property |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106229138A true CN106229138A (en) | 2016-12-14 |
Family
ID=57530918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610566835.2A Pending CN106229138A (en) | 2016-07-19 | 2016-07-19 | A kind of raising neodymium iron boron thin slice conforming method of magnet steel magnetic property |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106229138A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806963A (en) * | 2018-06-27 | 2018-11-13 | 京磁材料科技股份有限公司 | The screening technique of sintered NdFeB magnetic steel performance consistency |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020182557A1 (en) * | 2001-04-17 | 2002-12-05 | Hitachi Metals, Ltd. | Heat-treating furnace with magnetic field and heat treatment method using same |
| CN103231059A (en) * | 2013-05-05 | 2013-08-07 | 沈阳中北真空磁电科技有限公司 | Production method of neodymium iron boron rare earth permanent magnet device |
| CN103971919A (en) * | 2014-05-21 | 2014-08-06 | 北京京磁强磁材料有限公司 | Method for sintering neodymium-iron-boron magnet |
| CN104233138A (en) * | 2014-09-29 | 2014-12-24 | 中南大学 | Microwave aging treatment method for cobalt-based rare earth permanent magnetic materials |
| CN105551707A (en) * | 2016-02-25 | 2016-05-04 | 廊坊京磁精密材料有限公司 | Neodymium iron boron magnet raw material powder and treatment process therefor |
-
2016
- 2016-07-19 CN CN201610566835.2A patent/CN106229138A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020182557A1 (en) * | 2001-04-17 | 2002-12-05 | Hitachi Metals, Ltd. | Heat-treating furnace with magnetic field and heat treatment method using same |
| CN103231059A (en) * | 2013-05-05 | 2013-08-07 | 沈阳中北真空磁电科技有限公司 | Production method of neodymium iron boron rare earth permanent magnet device |
| CN103971919A (en) * | 2014-05-21 | 2014-08-06 | 北京京磁强磁材料有限公司 | Method for sintering neodymium-iron-boron magnet |
| CN104233138A (en) * | 2014-09-29 | 2014-12-24 | 中南大学 | Microwave aging treatment method for cobalt-based rare earth permanent magnetic materials |
| CN105551707A (en) * | 2016-02-25 | 2016-05-04 | 廊坊京磁精密材料有限公司 | Neodymium iron boron magnet raw material powder and treatment process therefor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806963A (en) * | 2018-06-27 | 2018-11-13 | 京磁材料科技股份有限公司 | The screening technique of sintered NdFeB magnetic steel performance consistency |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106409497B (en) | A kind of method of neodymium iron boron magnetic body grain boundary decision | |
| CN103212714B (en) | Method for preparing neodymium iron boron material | |
| CN104388951A (en) | Grain boundary diffusion method for improving properties of sintered NdFeB magnets | |
| CN106373688B (en) | A method of preparing rare earth permanent-magnetic material | |
| CN105321702B (en) | One kind improves the coercitive method of sintered NdFeB magnet | |
| CN103834863B (en) | The method of Nd-Fe-Bo permanent magnet material is manufactured with common association mishmetal | |
| CN104882266A (en) | Method for preparing high-coercivity Nd-Fe-B magnet from light rare earth-Cu alloy through grain boundary permeation | |
| CN103981337B (en) | A kind of thermal treatment process of sintered NdFeB | |
| CN110136953B (en) | Preparation method of composite neodymium iron boron magnet with coercivity gradient distribution characteristic | |
| CN103093916A (en) | Neodymium iron boron magnetic materials and preparation method of the same | |
| CN102766835B (en) | Method for preparing high performance SmCo permanent magnet material | |
| CN103559972B (en) | A kind of preparation method of sintered Nd-Fe-B permanent magnetic material | |
| CN112802677A (en) | Method for simultaneously improving coercivity and mechanical property of small-size sintered neodymium-iron-boron magnet | |
| CN111968819A (en) | Low-heavy rare earth high-performance sintered neodymium-iron-boron magnet and preparation method thereof | |
| JP2012142388A (en) | Method for producing rare earth magnet | |
| CN104464997B (en) | A kind of preparation method of high-coercivity neodymium-iron-boronpermanent-magnet permanent-magnet material | |
| CN104575919A (en) | Sintered neodymium-iron-boron magnet and manufacturing method thereof | |
| CN101016598A (en) | Nd-Fe-B alloys | |
| CN106866131A (en) | A kind of preparation method of high-performance permanent-magnet ferrite | |
| CN106229138A (en) | A kind of raising neodymium iron boron thin slice conforming method of magnet steel magnetic property | |
| CN106531385B (en) | A kind of gradient type Sintered NdFeB magnet and preparation method thereof | |
| CN105161242A (en) | Preparation method of neodymium iron boron | |
| CN111312463B (en) | Rare earth permanent magnetic material and preparation method and application thereof | |
| CN105957675B (en) | A kind of preparation method of rare earth permanent-magnetic material | |
| CN111312462B (en) | Neodymium-iron-boron material and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161214 |