CN104779026A - Neodymium-iron-boron bonded rare earth permanent magnet with strong antioxidant ability - Google Patents
Neodymium-iron-boron bonded rare earth permanent magnet with strong antioxidant ability Download PDFInfo
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- CN104779026A CN104779026A CN201510214816.9A CN201510214816A CN104779026A CN 104779026 A CN104779026 A CN 104779026A CN 201510214816 A CN201510214816 A CN 201510214816A CN 104779026 A CN104779026 A CN 104779026A
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Abstract
The invention discloses a neodymium-iron-boron bonded rare earth permanent magnet with a strong antioxidant ability, which is composed of the following raw materials in parts by weight: 1 to 2 parts of chitosan, 5 to 8 parts of deionized water, 1 to 3 parts of silane coupling agent DL171, 0.2 to 0.4 part of lauryl alcohol polyoxyethylene, 0.2 to 0.4 part of iso-tridecanol polyoxyethylene ether, 1 to 4 parts of cyclohexane, 1 to 2 parts of petroleum resin, 110 to 130 parts of neodymium-iron-boron permanent magnetic powder, 2 to 4 parts of tar residue, 5 to 8 parts of graphene, 3 to 6 parts of active carbon powder, 0.4 to 0.6 part of antioxidant 1076, 0.4 to 0.6 part of antioxidant T501, 0.4 to 0.6 part of epoxy linseed oil, 0.7 to 0.9 part of ethylene bisstearamide and 0.3 to 0.5 part of liquid paraffin.
Description
Technical field
The present invention relates to field of rare-earth permanent magnetic, is exactly the neodymium iron boron binding rare-earth permanent magnet that a kind of oxidation resistance is strong.
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 the neodymium iron boron binding rare-earth permanent magnet that a kind of oxidation resistance is strong.
Above-mentioned purpose is realized by following scheme:
The neodymium iron boron binding rare-earth permanent magnet that a kind of oxidation resistance is strong, it is characterized in that: it is obtained by the raw material of following weight parts: shitosan 1-2, deionized water 5-8, silane coupler DL171 1-3, ethoxylated dodecyl alcohol 0.2-0.4, isomerous tridecanol polyoxyethylene ether 0.2-0.4, cyclohexane 1-4, Petropols 1-2, NdFeB permanet magnetic powder 110-130, tar slag 2-4, Graphene 5-8, activated carbon powder 3-6, antioxidant 1076 0.4-0.6, antioxidant T501 0.4-0.6, epoxy linseed oil 0.4-0.6, ethylene group bis-stearamides 0.7-0.9, atoleine 0.3-0.5.
The neodymium iron boron binding rare-earth permanent magnet that described a kind of oxidation resistance is strong, is characterized in that: preparation method comprises the following steps:
(1) shitosan, deionized water, silane coupler DL171, ethoxylated dodecyl alcohol, isomerous tridecanol polyoxyethylene ether mixing, stir 10-20Min under 30-40 degree Celsius, dry, obtains composite binding agent for subsequent use;
(2) tar slag, Graphene are placed in absolute ethyl alcohol and stir 10-20min, dry 4-5h at 50-60 DEG C, then 1-2h in the concentration 4-6% potassium hydroxide solution being soaked in 40-45 DEG C, after filtration, dry at 130-150 DEG C, obtain composite mineral powder for subsequent use;
(3) after composite mineral powder, activated carbon powder mixing, add epoxy linseed oil, ethylene group bis-stearamides, atoleine, stir, at 700-730 DEG C, 4-5 hour is calcined again after being pressed into base, take out, cooling, is ground into 300-400 order powder, obtains nonmagnetic powder for subsequent use;
(4) NdFeB permanet magnetic powder, nonmagnetic powder, composite binding agent, Petropols are uniformly mixed in helium, obtain mixture;
(5) in the mixture of step (4), add all the other raw materials again, in muller, 130-150 DEG C mixes;
(6) the unity powder after mixing is carried out mechanical crushing;
(7) pressed by powder obtained becomes High-density magnet, then solidify 40-80 minute at 120-160 DEG C after, cooling, after and get final product.
Beneficial effect of the present invention is: the adhesion that the present invention locks between the binding agent of use and terres rares permanent magnet powder is strong, and evenly, not atmosphere pollution, the oxidation resistance of prepared magnet is stronger, and the life-span is high in attachment.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
The neodymium iron boron binding rare-earth permanent magnet that a kind of oxidation resistance is strong, it is obtained by the raw material of following weight (kg): shitosan 2, deionized water 6, silane coupler DL171 3, ethoxylated dodecyl alcohol 0.4, isomerous tridecanol polyoxyethylene ether 0.4, cyclohexane 2, Petropols 2, NdFeB permanet magnetic powder 130, tar slag 4, Graphene 8, activated carbon powder 6, antioxidant 1076 0.4, antioxidant T501 0.6, epoxy linseed oil 0.6, ethylene group bis-stearamides 0.7, atoleine 0.5.
The neodymium iron boron binding rare-earth permanent magnet that described a kind of oxidation resistance is strong, preparation method comprises the following steps:
(1) shitosan, deionized water, silane coupler DL171, ethoxylated dodecyl alcohol, isomerous tridecanol polyoxyethylene ether mixing, stir 20Min under 40 degrees Celsius, dry, obtains composite binding agent for subsequent use;
(2) tar slag, Graphene are placed in absolute ethyl alcohol and stir 20min, dry 4h at 50 DEG C, then 1-2h in concentration 6% potassium hydroxide solution being soaked in 40 DEG C, after filtration, dry at 130-150 DEG C, obtain composite mineral powder for subsequent use;
(3), after composite mineral powder, activated carbon powder mixing, add epoxy linseed oil, ethylene group bis-stearamides, atoleine, stir, calcine 4 hours at 700 DEG C again after being pressed into base, take out, cooling, be ground into 300 order powder, obtain nonmagnetic powder for subsequent use;
(4) NdFeB permanet magnetic powder, nonmagnetic powder, composite binding agent, Petropols are uniformly mixed in helium, obtain mixture;
(5) in the mixture of step (4), add all the other raw materials again, in muller, 135 DEG C mix;
(6) the unity powder after mixing is carried out mechanical crushing;
(7) pressed by powder obtained becomes High-density magnet, then solidifies after 60 minutes at 120 DEG C, cooling, after and get final product.
The hot strength 4.9MPa of gained magnet, through the experiment of high temperature demagnetize, after 120 DEG C of insulation 1H, flux loss < 5%; Maximum magnetic energy product 9.7(MGOe).
Claims (2)
1. the neodymium iron boron binding rare-earth permanent magnet that an oxidation resistance is strong, it is characterized in that: it is obtained by the raw material of following weight parts: shitosan 1-2, deionized water 5-8, silane coupler DL171 1-3, ethoxylated dodecyl alcohol 0.2-0.4, isomerous tridecanol polyoxyethylene ether 0.2-0.4, cyclohexane 1-4, Petropols 1-2, NdFeB permanet magnetic powder 110-130, tar slag 2-4, Graphene 5-8, activated carbon powder 3-6, antioxidant 1076 0.4-0.6, antioxidant T501 0.4-0.6, epoxy linseed oil 0.4-0.6, ethylene group bis-stearamides 0.7-0.9, atoleine 0.3-0.5.
2. the neodymium iron boron binding rare-earth permanent magnet that a kind of oxidation resistance according to claim 1 is strong, is characterized in that: preparation method comprises the following steps:
(1) shitosan, deionized water, silane coupler DL171, ethoxylated dodecyl alcohol, isomerous tridecanol polyoxyethylene ether mixing, stir 10-20Min under 30-40 degree Celsius, dry, obtains composite binding agent for subsequent use;
(2) tar slag, Graphene are placed in absolute ethyl alcohol and stir 10-20min, dry 4-5h at 50-60 DEG C, then 1-2h in the concentration 4-6% potassium hydroxide solution being soaked in 40-45 DEG C, after filtration, dry at 130-150 DEG C, obtain composite mineral powder for subsequent use;
(3) after composite mineral powder, activated carbon powder mixing, add epoxy linseed oil, ethylene group bis-stearamides, atoleine, stir, at 700-730 DEG C, 4-5 hour is calcined again after being pressed into base, take out, cooling, is ground into 300-400 order powder, obtains nonmagnetic powder for subsequent use;
(4) NdFeB permanet magnetic powder, nonmagnetic powder, composite binding agent, Petropols are uniformly mixed in helium, obtain mixture;
(5) in the mixture of step (4), add all the other raw materials again, in muller, 130-150 DEG C mixes;
(6) the unity powder after mixing is carried out mechanical crushing;
(7) pressed by powder obtained becomes High-density magnet, then solidify 40-80 minute at 120-160 DEG C after, cooling, after and get final product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510214816.9A CN104779026A (en) | 2015-04-30 | 2015-04-30 | Neodymium-iron-boron bonded rare earth permanent magnet with strong antioxidant ability |
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| CN201510214816.9A CN104779026A (en) | 2015-04-30 | 2015-04-30 | Neodymium-iron-boron bonded rare earth permanent magnet with strong antioxidant ability |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023688A (en) * | 2015-07-27 | 2015-11-04 | 合肥凯士新材料贸易有限公司 | High-temperature-resistant rare earth bonded permanent magnet |
| CN105023686A (en) * | 2015-07-27 | 2015-11-04 | 合肥凯士新材料贸易有限公司 | High-magnetism neodymium-iron-boron bonded permanent magnet containing talc powder |
| CN105023682A (en) * | 2015-07-27 | 2015-11-04 | 合肥凯士新材料贸易有限公司 | Samarium-cobalt bonded permanent magnet containing glass fiber with high mechanical performance |
| CN105023687A (en) * | 2015-07-27 | 2015-11-04 | 合肥凯士新材料贸易有限公司 | Anticorrosive NdFeB bonded permanent magnet |
| CN105023681A (en) * | 2015-07-27 | 2015-11-04 | 合肥凯士新材料贸易有限公司 | Wear-resistant samarium-cobalt permanent magnet containing mineral powder |
| CN105070444A (en) * | 2015-07-27 | 2015-11-18 | 合肥凯士新材料贸易有限公司 | Nylon fiber-toughened cohesive samarium-cobalt permanent magnet |
| 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 |
| CN115985612A (en) * | 2022-12-20 | 2023-04-18 | 东莞金坤新材料股份有限公司 | Formula and preparation method of water-erosion-resistant powerful magnet |
| CN116230347A (en) * | 2023-03-01 | 2023-06-06 | 东莞金坤新材料股份有限公司 | Formula of flexible neodymium-iron-boron magnetic material and manufacturing method thereof |
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| 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 |
| WO2013044341A1 (en) * | 2011-09-29 | 2013-04-04 | Instituto De Pesquisas Tecnológicas Do Estado De São Paulo | Nanoparticulate magnetic material for thermal applications |
| CN103212714A (en) * | 2013-04-27 | 2013-07-24 | 安徽大地熊新材料股份有限公司 | Method for preparing neodymium iron boron material |
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2015
- 2015-04-30 CN CN201510214816.9A patent/CN104779026A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013044341A1 (en) * | 2011-09-29 | 2013-04-04 | Instituto De Pesquisas Tecnológicas Do Estado De São Paulo | Nanoparticulate magnetic material for thermal applications |
| 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 |
| CN103212714A (en) * | 2013-04-27 | 2013-07-24 | 安徽大地熊新材料股份有限公司 | Method for preparing neodymium iron boron material |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105023688A (en) * | 2015-07-27 | 2015-11-04 | 合肥凯士新材料贸易有限公司 | High-temperature-resistant rare earth bonded permanent magnet |
| CN105023686A (en) * | 2015-07-27 | 2015-11-04 | 合肥凯士新材料贸易有限公司 | High-magnetism neodymium-iron-boron bonded permanent magnet containing talc powder |
| CN105023682A (en) * | 2015-07-27 | 2015-11-04 | 合肥凯士新材料贸易有限公司 | Samarium-cobalt bonded permanent magnet containing glass fiber with high mechanical performance |
| CN105023687A (en) * | 2015-07-27 | 2015-11-04 | 合肥凯士新材料贸易有限公司 | Anticorrosive NdFeB bonded permanent magnet |
| CN105023681A (en) * | 2015-07-27 | 2015-11-04 | 合肥凯士新材料贸易有限公司 | Wear-resistant samarium-cobalt permanent magnet containing mineral powder |
| CN105070444A (en) * | 2015-07-27 | 2015-11-18 | 合肥凯士新材料贸易有限公司 | Nylon fiber-toughened cohesive samarium-cobalt permanent magnet |
| 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 |
| CN115985612A (en) * | 2022-12-20 | 2023-04-18 | 东莞金坤新材料股份有限公司 | Formula and preparation method of water-erosion-resistant powerful magnet |
| CN116230347A (en) * | 2023-03-01 | 2023-06-06 | 东莞金坤新材料股份有限公司 | Formula of flexible neodymium-iron-boron magnetic material and manufacturing method thereof |
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Application publication date: 20150715 |