CN1901322A - Moulding press composite adhesive magnetic tile and its preparing method - Google Patents
Moulding press composite adhesive magnetic tile and its preparing method Download PDFInfo
- Publication number
- CN1901322A CN1901322A CN 200610036654 CN200610036654A CN1901322A CN 1901322 A CN1901322 A CN 1901322A CN 200610036654 CN200610036654 CN 200610036654 CN 200610036654 A CN200610036654 A CN 200610036654A CN 1901322 A CN1901322 A CN 1901322A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- composite adhesive
- moulding press
- powder
- press composite
- 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
Landscapes
- Manufacturing Cores, Coils, And Magnets (AREA)
- Hard Magnetic Materials (AREA)
Abstract
This invention discloses a die-pressed compound bonded magnetic shoe and its preparation method valued in weight percentage including: NdFeB magnetic powder 61-98.4%, ferrite magnetic powder 0-33%, resin bonding agent 1.5-6.1% and processing assistant agent 0.2-0.3%. The preparation method includes: 1, mixing NdFeB magnetic powder, ferrite powder and resin bonder in formula proportion, 2, mixing the mixture got in step 1 with process assistant agents evenly in a mixing machine to get grains, 3, moulding the composite bonded magnetic shoes, in which, the magnetic performance can be adjusted from 2 to 11MGO along with the change of the match of NdFeB and ferrite powder.
Description
Technical field
The present invention relates to a kind of moulding press composite adhesive magnetic tile and preparation method thereof.
Background technology
Electrical micro-machine has been widely used in fields such as digital electronic goods, office automation with magnetic shoe, be in great demand.Low performance (magnetic energy product is less than 4MGO) is to adopt Ferrite Material at present, through sintering process production.Though raw material are cheap, all need carry out machine work to size in the later stage, poor dimensional precision, production efficiency and rate of finished products are lower.Above problem especially embodies a concentrated reflection of on the following little sintering magnetic shoe of 1g, and the domestic ability of still not having stable mass production is monopolized by Japanese enterprises basically, the high enterprise of price.
Summary of the invention
The objective of the invention is to overcome the defective that prior art exists, provide a kind of comprehensive performance that has covered ferrite sintered body, magnetic property can be at the continuously adjustable moulding press composite adhesive magnet of 2-11MGO.
Another object of the present invention is to provide the preparation method of this moulding press composite adhesive magnet.Method of the present invention is compared with existing sintering process has one-shot forming, need not back processing, and dimensional accuracy is good, and production procedure is short, the distinguishing feature that efficient is high.
For achieving the above object, the present invention has taked following technical scheme:
Moulding press composite adhesive magnetic tile provided by the invention, its component and weight content are:
Neodymium iron boron class magnetic 61-98.4%
Ferrite class magnetic 0-33%
Resinae binding agent 1.5-6.1%
Processing aid 0.2-0.3%.
Magnetic of the present invention mainly is neodymium iron boron class magnetic and ferrite class magnetic.The former contains rare earth element based on Nd, based on the transition elements of Fe, based on the basis of B; The latter can be barium ferrite (BaO6Fe2O3), also can be strontium ferrite (SrO6Fe2O3).The magnetic property of magnet is main relevant with the adding proportion of above-mentioned two kinds of magnetics, and NdFeB magnetic powder content is high more, and magnetic energy product is high more, and the ferrite magnetic powder content is low more, and coercive force is high more.The particle size distribution of two kinds of magnetics has very big influence to the uniformity and the flowability of composite granule, and the particle diameter of general NdFeB magnetic powder is 60-275 μ m, and the particle diameter of ferromagnetic oxide powder is 0.1-30 μ m, preferably normal distribution.
Resinae binding agent of the present invention comprises one or several in epoxy resin, the phenolic resins.
Processing aid of the present invention comprises one or several in antioxidant, coupling molecule, the lubricant.
The preparation method of moulding press composite adhesive magnet comprises following technical step:
(1) the pellet manufacturing of composite adhesive magnetic tile: neodymium iron boron class magnetic, ferrite class magnetic and resinae binding agent are pressed formula rate mix;
The method of mixing adopts ball-milling method, paddling process or screw mixing method.
In order to make NdFeB magnetic powder and ferromagnetic oxide powder evenly mixed, need carry out granularity, pattern adjustment and surface treatment to reach the optimum state that each NdFeB magnetic powder is all being coated by a lot of ferromagnetic oxide powders to magnetic.
(2) said mixture is mixed in batch mixer with processing aid again make pellet then;
(3) forming method of composite adhesive magnetic tile: pellet is filled in the die cavity automatically with being molded into green compact in the high speed dry powder press, puts into baking oven again and be heated to 120-180 ℃, be incubated 1.5-2 hour curing molding.
Used press is the automated machine press, and a mould has more or multimode has more, and per minute can be produced magnetic shoe 80-200 spare continuously, is much higher than one minute of the traditional approach efficient about 30.
Compared with prior art, the present invention has following beneficial effect:
The present invention adopts NdFeB magnetic powder and ferromagnetic oxide powder and epoxy resin composition mixing, the compoiste adhering magnet of making by high speed dry powder press die forming, it is characterized in that changing along with the proportioning of neodymium iron boron and ferromagnetic oxide powder, magnetic property is adjustable continuously from 2-11MGO.
The preparation method of moulding press composite adhesive magnet of the present invention is advanced granulating technique of a kind of system integration and the advanced technologies of stablizing forming technique at a high speed, contain all trades mark of present ferrite sintered body with the production moulding press composite adhesive neodymium iron boron magnetic body performance of this technology, filled up the performance neutral gear in the middle of bonded ferrite and the Agglutinate neodymium-iron-boron magnet.The present invention compares with existing ferrite sintered body magnetic shoe, characteristics such as moulding press composite adhesive magnetic tile of the present invention has the production efficiency height, cost is low, dimensional accuracy is high, high conformity.Efficiently, the distinguishing feature of high performance-price ratio.
Preparation method of the present invention compares with existing sintering process has one-shot forming, need not back processing, and dimensional accuracy is good, and production procedure is short, the distinguishing feature that efficient is high.
The present invention helps promoting Chinese ferrite industrial competition, grabs the high-end and gadget ferrite sintered body market of being captured by Japan for a long time.
Embodiment
The invention will be further described below in conjunction with specific embodiment, but the present invention's scope required for protection is not limited to the scope that embodiment describes.
Embodiment 1
Magnet formula rate (mass ratio) is a NdFeB magnetic powder 66%, ferromagnetic oxide powder 27.8%, epoxy adhesive 5.74%, coupling agent 0.46% (for example KH-550).Earlier two kinds of magnetics are mixed in batch mixer, add coupling agent and epoxy resin solution then and mix evenly, oven dry is crushed to certain particle size, and bake out temperature is 140 ℃, and temperature retention time is 1.5 hours, moulding.Extruding wall thickness 1.4mm on the press fast at last, 031 magnetic shoe of 13mm, speed reaches 80-160pcs/min, and magnetic energy product is 3.5MGOe, crushing strength 6.0Kgf/mm2.
Embodiment 2
Magnet formula rate (mass ratio) is a NdFeB magnetic powder 76.3%, ferromagnetic oxide powder 18.4%, epoxy adhesive 4.82%, coupling agent (KH-560 silane) 0.39%.Earlier two kinds of magnetics are mixed in batch mixer, add coupling agent and epoxy resin solution then and mix evenly, oven dry is crushed to certain particle size, and bake out temperature is 180 ℃, and temperature retention time is 2 hours, moulding.Extruding wall thickness 1.95mm on the press fast at last, 030 magnetic shoe of 11.6mm, speed reaches 90-180pcs/min, and magnetic energy product is 5.5MGOe, crushing strength 5.8Kgf/mm2.
Compared with prior art, the present invention has following beneficial effect:
The present invention adopts NdFeB magnetic powder and ferromagnetic oxide powder and epoxy resin composition mixing, the compoiste adhering magnet of making by high speed dry powder press die forming, it is characterized in that changing along with the proportioning of neodymium iron boron and ferromagnetic oxide powder, magnetic property is adjustable continuously from 2-11MGO.
The preparation method of moulding press composite adhesive magnet of the present invention is advanced granulating technique of a kind of system integration and the advanced technologies of stablizing forming technique at a high speed, contain all trades mark of present ferrite sintered body with the production moulding press composite adhesive neodymium iron boron magnetic body performance of this technology, filled up the performance neutral gear in the middle of bonded ferrite and the Agglutinate neodymium-iron-boron magnet.The present invention compares with existing ferrite sintered body magnetic shoe, characteristics such as moulding press composite adhesive magnetic tile of the present invention has the production efficiency height, cost is low, dimensional accuracy is high, high conformity.Efficiently, the distinguishing feature of high performance-price ratio.
Preparation method of the present invention compares with existing sintering process has one-shot forming, need not back processing, and dimensional accuracy is good, and production procedure is short, the distinguishing feature that efficient is high.
The present invention helps promoting Chinese ferrite industrial competition, grabs the high-end and gadget ferrite sintered body market of being captured by Japan for a long time.
Claims (8)
1, moulding press composite adhesive magnetic tile is characterized in that by weight percentage, comprises the component of following weight content:
Neodymium iron boron class magnetic 61-98.4%
Ferrite class magnetic 0-33%
Resinae binding agent 1.5-6.1%
Processing aid 0.2-0.3%.
2, moulding press composite adhesive magnetic tile according to claim 1, the particle diameter that it is characterized in that described NdFeB magnetic powder are 60-275 μ m, and the particle diameter of ferromagnetic oxide powder is 0.1-30 μ m.
3, moulding press composite adhesive magnetic tile according to claim 2 is characterized in that the particle size of described NdFeB magnetic powder and ferromagnetic oxide powder is normal distribution.
4, moulding press composite adhesive magnetic tile according to claim 1 is characterized in that described resinae binding agent is the one or more kinds of mixtures in epoxy resin, the phenolic resins.
5, moulding press composite adhesive magnetic tile according to claim 1 is characterized in that described processing aid comprises the one or more kinds of mixtures in antioxidant, coupling molecule, the lubricant.
6, the preparation method of the described moulding press composite adhesive magnet of claim 1 comprises following technical step:
(1) the pellet manufacturing of composite adhesive magnetic tile: neodymium iron boron class magnetic, ferrite class magnetic and resinae binding agent are pressed formula rate mix;
(2) mixture that then (1) step is obtained mixes in batch mixer with processing aid and makes pellet;
(3) forming method of composite adhesive magnetic tile: the pellet that (2) step is made is filled in the die cavity automatically with being molded into green compact in the high speed dry powder press, puts into baking oven again and is heated to 120-180 ℃, is incubated 1.5-2 hour curing molding.
7, the preparation method of moulding press composite adhesive magnet according to claim 6 is characterized in that the described mixed method of (1) step can be ball-milling method, paddling process or screw mixing method.
8, the preparation method of moulding press composite adhesive magnet according to claim 7, it is characterized in that in (1) step, for making NdFeB magnetic powder and ferromagnetic oxide powder evenly mixed, need carry out granularity, pattern adjustment and surface treatment to reach the optimum state that each NdFeB magnetic powder is all being coated by a lot of ferromagnetic oxide powders to magnetic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610036654 CN1901322A (en) | 2006-07-24 | 2006-07-24 | Moulding press composite adhesive magnetic tile and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610036654 CN1901322A (en) | 2006-07-24 | 2006-07-24 | Moulding press composite adhesive magnetic tile and its preparing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1901322A true CN1901322A (en) | 2007-01-24 |
Family
ID=37657107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610036654 Pending CN1901322A (en) | 2006-07-24 | 2006-07-24 | Moulding press composite adhesive magnetic tile and its preparing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1901322A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568730A (en) * | 2010-12-31 | 2012-07-11 | 上海爱普生磁性器件有限公司 | High mechanical strength bonding neodymium iron boron permanent magnet and preparation method thereof |
| CN101877266B (en) * | 2009-04-30 | 2012-12-12 | 比亚迪股份有限公司 | Sintered neodymium iron boron permanent magnetic material and preparation method thereof |
| CN103736995A (en) * | 2014-01-24 | 2014-04-23 | 浙江工业大学 | Method for preparing composite magnet from surface tinned magnetic powder through hot embossing |
| CN105374543A (en) * | 2015-12-03 | 2016-03-02 | 湖南航天磁电有限责任公司 | Preparation method for bonding NdFeB-ferrite permanent magnet |
| CN107540902A (en) * | 2017-09-13 | 2018-01-05 | 扬州大学 | A kind of preparation method of flexible neodymium iron boron rubber magnet composite |
| CN108074701A (en) * | 2016-11-07 | 2018-05-25 | 北京中科三环高技术股份有限公司 | A kind of high density bonded permanent magnet and preparation method thereof |
| CN109482986A (en) * | 2018-10-30 | 2019-03-19 | 杭州美磁科技有限公司 | The processing method of the processing unit (plant) of screw thread tile-shaped magnet steel and the screw thread tile-shaped magnet steel |
| CN110021468A (en) * | 2019-05-23 | 2019-07-16 | 温州市享通塑磁科技有限公司 | A kind of flexibility NdFeB material and preparation method thereof |
| CN112159699A (en) * | 2020-08-28 | 2021-01-01 | 希玛石油制品（镇江）有限公司 | Efficient water-soluble magnetic shoe release agent and preparation method thereof |
| CN113437843A (en) * | 2021-07-09 | 2021-09-24 | 浙江盘毂动力科技有限公司 | Rotor structure based on neodymium iron boron magnetic steel and manufacturing method |
-
2006
- 2006-07-24 CN CN 200610036654 patent/CN1901322A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877266B (en) * | 2009-04-30 | 2012-12-12 | 比亚迪股份有限公司 | Sintered neodymium iron boron permanent magnetic material and preparation method thereof |
| CN102568730A (en) * | 2010-12-31 | 2012-07-11 | 上海爱普生磁性器件有限公司 | High mechanical strength bonding neodymium iron boron permanent magnet and preparation method thereof |
| CN103736995B (en) * | 2014-01-24 | 2016-07-06 | 浙江工业大学 | The magnetic heat-die compaction of a kind of electroplating surfaces with tin is for the method for built-up magnet |
| CN103736995A (en) * | 2014-01-24 | 2014-04-23 | 浙江工业大学 | Method for preparing composite magnet from surface tinned magnetic powder through hot embossing |
| CN105374543B (en) * | 2015-12-03 | 2018-01-23 | 湖南航天磁电有限责任公司 | A kind of preparation method of Agglutinate neodymium-iron-boron ferrite permanent magnet |
| CN105374543A (en) * | 2015-12-03 | 2016-03-02 | 湖南航天磁电有限责任公司 | Preparation method for bonding NdFeB-ferrite permanent magnet |
| CN108074701A (en) * | 2016-11-07 | 2018-05-25 | 北京中科三环高技术股份有限公司 | A kind of high density bonded permanent magnet and preparation method thereof |
| CN108074701B (en) * | 2016-11-07 | 2022-03-25 | 北京中科三环高技术股份有限公司 | High-density bonded magnet and preparation method thereof |
| CN107540902A (en) * | 2017-09-13 | 2018-01-05 | 扬州大学 | A kind of preparation method of flexible neodymium iron boron rubber magnet composite |
| CN107540902B (en) * | 2017-09-13 | 2020-01-21 | 扬州大学 | Preparation method of flexible neodymium iron boron rubber magnetic composite material |
| CN109482986A (en) * | 2018-10-30 | 2019-03-19 | 杭州美磁科技有限公司 | The processing method of the processing unit (plant) of screw thread tile-shaped magnet steel and the screw thread tile-shaped magnet steel |
| CN109482986B (en) * | 2018-10-30 | 2020-03-20 | 杭州美磁科技有限公司 | Machining device and method for threaded tile-shaped magnetic steel |
| CN110021468A (en) * | 2019-05-23 | 2019-07-16 | 温州市享通塑磁科技有限公司 | A kind of flexibility NdFeB material and preparation method thereof |
| CN112159699A (en) * | 2020-08-28 | 2021-01-01 | 希玛石油制品（镇江）有限公司 | Efficient water-soluble magnetic shoe release agent and preparation method thereof |
| CN113437843A (en) * | 2021-07-09 | 2021-09-24 | 浙江盘毂动力科技有限公司 | Rotor structure based on neodymium iron boron magnetic steel and manufacturing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1901322A (en) | Moulding press composite adhesive magnetic tile and its preparing method | |
| CN100483571C (en) | Formula of compoiste adhering magnet | |
| CN103489621B (en) | A kind of employing two one-step forming techniques prepare the method for anisotropic bonded magnet | |
| CN101465188B (en) | Flexible rare-earth cementing magnet and method of manufacturing the same | |
| CN106317875B (en) | A kind of high-performance polyphenylene sulfide/samarium iron nitrogen magnetic composite and preparation method thereof | |
| CN106349686B (en) | A kind of high-performance polyamide/samarium iron nitrogen magnetic composite and preparation method thereof | |
| CN1285083C (en) | Flexible binding neodymium ferroboron magnet and manufacturing method thereof | |
| CN102408230A (en) | Ferrite injection molding granule and preparation method thereof | |
| CN102723165A (en) | Bonded NdFeB (neodymium, ferrum and boron) strong magnet and preparation method thereof | |
| CN106317862A (en) | High-performance polyamide/ferrite magnetic composite material and preparation method thereof | |
| CN106340365B (en) | A kind of injection molding nylon 12- rare earth permanent magnet particulate material and preparation method thereof | |
| CN1277884C (en) | Sheet molding material and its forming method | |
| KR102454806B1 (en) | Anisotropic bonded magnet and preparation method thereof | |
| CN111363228B (en) | EEA filling modified magnetic particle material for injection molding and preparation method thereof | |
| CN108546408B (en) | High-mechanical-property strontium ferrite injection molding granule and preparation method thereof | |
| CN1314748C (en) | Process for preparing permanent magnet iron oxygen body polymer composite magnet | |
| CN114316509A (en) | PEEK-based composite wave-absorbing 3D printing wire material and preparation method thereof | |
| CN2599854Y (en) | Anisotropic ferrite multipolar magnetic ring | |
| CN102568736A (en) | Rigid anisotropy bonded neodymium iron boron permanent magnet | |
| CN1213102C (en) | Molded polyester material with marble-like grain and its prepn | |
| CN100568418C (en) | The method of preparing bonded permanent ferrite by direct injection forming after in-situ polymerization | |
| CN101033128A (en) | Raw material formulation for ceramics polymer composite material and preparing method | |
| EP0289979A1 (en) | Plastic magnets | |
| CN112223578A (en) | Method for preparing high-toughness strontium ferrite/PPS injection molding granules through in-situ polymerization | |
| KR102487771B1 (en) | Anisotropic bonded magnet and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |