CN105023686A - High-magnetism neodymium-iron-boron bonded permanent magnet containing talc powder - Google Patents
High-magnetism neodymium-iron-boron bonded permanent magnet containing talc powder Download PDFInfo
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- CN105023686A CN105023686A CN201510442881.7A CN201510442881A CN105023686A CN 105023686 A CN105023686 A CN 105023686A CN 201510442881 A CN201510442881 A CN 201510442881A CN 105023686 A CN105023686 A CN 105023686A
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Abstract
The invention discloses a high-magnetism neodymium-iron-boron bonded permanent magnet containing talc powder. The high-magnetism neodymium-iron-boron bonded permanent magnet is prepared from the following raw materials in parts by weight: 110-120 parts of neodymium-iron-boron magnetic powder, 0.2-0.4 part of benzenediol, 0.3-0.5 part of molybdenum disulfide, 1-3 parts of graphene, 3-5 parts of calcium silicon slag, 1-3 parts of bakelite powder, 2-3 parts of talc powder, 2-5 parts of calcium silicon slag, 1-2 parts of vegetable oil, 0.2-0.4 part of melamine cyanurate, 1-3 parts of epoxy resin, 1-2 parts of rosin, 0.5-0.8 part of ethylene bis-stearamide and 1-2 parts of acetone.
Description
Technical field
The present invention relates to field of rare-earth permanent magnetic, is exactly a kind of containing the talcous neodymium iron boron binding permanent magnet with high magnetic.
Background technology
At present, the high performance permanent magnetic materials on market is rare-earth bond magnet mostly; So-called rare-earth bond magnet refers to and rare earth permanent-magnet powder is mixed into a certain proportion of binding agent and a kind of magnet made by certain processing technology, and its final form can be divided into rigidity rare-earth bond magnet and flexible rare-earth cementing magnet.
Summary of the invention
The object of the present invention is to provide a kind of containing the talcous neodymium iron boron binding permanent magnet with high magnetic.
Above-mentioned purpose is realized by following scheme:
Containing a talcous neodymium iron boron binding permanent magnet with high magnetic, it is characterized in that: it is obtained by the raw material of following weight parts:
NdFeB magnetic powder 110-120, benzenediol 0.2-0.4, molybdenum bisuphide 0.3-0.5, Graphene 1-3, silico-calcium slag 3-5, phenolic moulding powder 1-3, talcum powder 2-3, silico-calcium slag 2-5, vegetable oil 1-2, melamine cyanurate 0.2-0.4, epoxy resin 1-3, rosin 1-2, ethylene group bis-stearamides 0.5-0.8, acetone 1-2.
Described is a kind of containing the talcous neodymium iron boron binding permanent magnet with high magnetic, it is characterized in that: preparation method comprises the following steps:
(1) by phenolic moulding powder, Graphene, the mixing of silico-calcium slag, be placed in absolute ethyl alcohol 50-60 rev/min and stir 20-30min, dry 4-5h at 70-80 DEG C, be soaked in 1-2h in concentration 4-6% acetum again, after filtration, dry at 70-80 DEG C, add ethylene group bis-stearamides, acetone, wet-milling 5-8 hour, take out, after drying, then add vegetable oil again and stir, after being pressed into base, at 700-730 DEG C, calcine 4-5 hour again, take out, cooling, is ground into 300-400 order powder, obtains nonmagnetic powder for subsequent use;
(2) NdFeB magnetic powder, nonmagnetic powder, epoxy resin, rosin are uniformly mixed in argon gas, obtain mixture;
(3) in the mixture of step (2), add all the other raw materials again, in muller, 110-130 DEG C mixes;
(4) the unity powder after mixing is carried out mechanical crushing;
(5) after becoming High-density magnet to solidify 40-80 minute again at 120-160 DEG C gained pressed by powder, cooling, after and get final product.
Beneficial effect of the present invention is: the present invention is by adding various mineral matter and resinoid bond, and make this magnet toughness strong, preparation technology is simple simultaneously, does not lose magnetic energy, makes the present invention have high magnetic.Graphene by after composite with all the other raw materials through a series of process, the magnet finally suppressed enough reaches good magnetic energy through adding magnetic energy, saves the consumption of rare earth.
Embodiment
Containing a talcous neodymium iron boron binding permanent magnet with high magnetic, it is obtained by the raw material of following weight (kg):
NdFeB magnetic powder 120, benzenediol 0.4, molybdenum bisuphide 0.3, Graphene 3, silico-calcium slag 5, phenolic moulding powder 1, talcum powder 3, silico-calcium slag 2, vegetable oil 1, melamine cyanurate 0.2, epoxy resin 1, rosin 1, ethylene group bis-stearamides 0.5, acetone 1.
Described is a kind of containing the talcous neodymium iron boron binding permanent magnet with high magnetic, and preparation method comprises the following steps:
(1) by phenolic moulding powder, Graphene, the mixing of silico-calcium slag, be placed in absolute ethyl alcohol 55 revs/min and stir 25min, dry 5h at 70 DEG C, be soaked in 1h in concentration 6% acetum again, after filtration, dry at 70 DEG C, add ethylene group bis-stearamides, acetone, wet-milling 8 hours, take out, after drying, then add vegetable oil again and stir, calcine 4 hours at 730 DEG C again after being pressed into base, take out, cooling, is ground into 400 order powder, obtains nonmagnetic powder for subsequent use;
(2) NdFeB magnetic powder, nonmagnetic powder, epoxy resin, rosin are uniformly mixed in argon gas, obtain mixture;
(3) in the mixture of step (2), add all the other raw materials again, in muller, 130 DEG C mix;
(4) the unity powder after mixing is carried out mechanical crushing;
(5) gained pressed by powder become High-density magnet to solidify after 50 minutes at 150 DEG C again, cooling, after and get final product.
The hot strength 7.3MPa of gained magnet, maximum magnetic energy product 9.7(MGOe).
Claims (2)
1., containing a talcous neodymium iron boron binding permanent magnet with high magnetic, it is characterized in that: it is obtained by the raw material of following weight parts:
NdFeB magnetic powder 110-120, benzenediol 0.2-0.4, molybdenum bisuphide 0.3-0.5, Graphene 1-3, silico-calcium slag 3-5, phenolic moulding powder 1-3, talcum powder 2-3, silico-calcium slag 2-5, vegetable oil 1-2, melamine cyanurate 0.2-0.4, epoxy resin 1-3, rosin 1-2, ethylene group bis-stearamides 0.5-0.8, acetone 1-2.
2. according to claim 1 a kind of containing the talcous neodymium iron boron binding permanent magnet with high magnetic, it is characterized in that: preparation method comprises the following steps:
(1) by phenolic moulding powder, Graphene, the mixing of silico-calcium slag, be placed in absolute ethyl alcohol 50-60 rev/min and stir 20-30min, dry 4-5h at 70-80 DEG C, be soaked in 1-2h in concentration 4-6% acetum again, after filtration, dry at 70-80 DEG C, add ethylene group bis-stearamides, acetone, wet-milling 5-8 hour, take out, after drying, then add vegetable oil again and stir, after being pressed into base, at 700-730 DEG C, calcine 4-5 hour again, take out, cooling, is ground into 300-400 order powder, obtains nonmagnetic powder for subsequent use;
(2) NdFeB magnetic powder, nonmagnetic powder, epoxy resin, rosin are uniformly mixed in argon gas, obtain mixture;
(3) in the mixture of step (2), add all the other raw materials again, in muller, 110-130 DEG C mixes;
(4) the unity powder after mixing is carried out mechanical crushing;
(5) after becoming High-density magnet to solidify 40-80 minute again at 120-160 DEG C gained pressed by powder, cooling, after and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510442881.7A CN105023686A (en) | 2015-07-27 | 2015-07-27 | High-magnetism neodymium-iron-boron bonded permanent magnet containing talc powder |
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| CN201510442881.7A CN105023686A (en) | 2015-07-27 | 2015-07-27 | High-magnetism neodymium-iron-boron bonded permanent magnet containing talc powder |
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| CN105023686A true CN105023686A (en) | 2015-11-04 |
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| CN201510442881.7A Pending CN105023686A (en) | 2015-07-27 | 2015-07-27 | High-magnetism neodymium-iron-boron bonded permanent magnet containing talc powder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384434A (en) * | 2015-11-11 | 2016-03-09 | 横店集团东磁股份有限公司 | Method for manufacturing dry press permanent magnetic ferrite |
| WO2019033972A1 (en) * | 2017-08-14 | 2019-02-21 | 天津三环乐喜新材料有限公司 | Magnet assembly and preparation method therefor |
| CN115149276A (en) * | 2022-07-05 | 2022-10-04 | 江西理工大学 | Neodymium iron boron waste composite graphene wave-absorbing material and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09232133A (en) * | 1996-02-21 | 1997-09-05 | Sanei Kasei Kk | Flexible permanent magnet sheet and manufacture thereof |
| CN102360653A (en) * | 2011-06-08 | 2012-02-22 | 北矿磁材科技股份有限公司 | Flexible rare earth bonded magnet with roll anisotropy and manufacturing method thereof |
| CN104091666A (en) * | 2014-08-04 | 2014-10-08 | 梁家新 | Method for preparing neodymium-iron-boron permanent magnet material through nanometer modification |
| CN104779026A (en) * | 2015-04-30 | 2015-07-15 | 安徽百宏达汽车电器有限公司 | Neodymium-iron-boron bonded rare earth permanent magnet with strong antioxidant ability |
-
2015
- 2015-07-27 CN CN201510442881.7A patent/CN105023686A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09232133A (en) * | 1996-02-21 | 1997-09-05 | Sanei Kasei Kk | Flexible permanent magnet sheet and manufacture thereof |
| CN102360653A (en) * | 2011-06-08 | 2012-02-22 | 北矿磁材科技股份有限公司 | Flexible rare earth bonded magnet with roll anisotropy and manufacturing method thereof |
| CN104091666A (en) * | 2014-08-04 | 2014-10-08 | 梁家新 | Method for preparing neodymium-iron-boron permanent magnet material through nanometer modification |
| CN104779026A (en) * | 2015-04-30 | 2015-07-15 | 安徽百宏达汽车电器有限公司 | Neodymium-iron-boron bonded rare earth permanent magnet with strong antioxidant ability |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384434A (en) * | 2015-11-11 | 2016-03-09 | 横店集团东磁股份有限公司 | Method for manufacturing dry press permanent magnetic ferrite |
| WO2019033972A1 (en) * | 2017-08-14 | 2019-02-21 | 天津三环乐喜新材料有限公司 | Magnet assembly and preparation method therefor |
| CN115149276A (en) * | 2022-07-05 | 2022-10-04 | 江西理工大学 | Neodymium iron boron waste composite graphene wave-absorbing material and preparation method and application thereof |
| CN115149276B (en) * | 2022-07-05 | 2023-05-23 | 江西理工大学 | Neodymium-iron-boron waste composite graphene wave-absorbing material and preparation method and application thereof |
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Application publication date: 20151104 |