CN1472753A - Permanent-magnetic binding material and producing method thereof - Google Patents
Permanent-magnetic binding material and producing method thereof Download PDFInfo
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- CN1472753A CN1472753A CNA021362769A CN02136276A CN1472753A CN 1472753 A CN1472753 A CN 1472753A CN A021362769 A CNA021362769 A CN A021362769A CN 02136276 A CN02136276 A CN 02136276A CN 1472753 A CN1472753 A CN 1472753A
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- binding agent
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Abstract
The material is prepared by mixing compound binder and magnetic powder of permanent magnetism together as its formula (wt.%) is as the follows: compound binder 1.l5-40% to permanent magnetism powder 60-98.5%. The manufacturing method includes processing steps for preparing compound binder and binding the permanent magnetism material.
Description
Technical field
The present invention relates to magnetic material, relate in particular to a kind of binding electromagnetic material and manufacture method thereof.
Background technology
Binding electromagnetic material is to be mixed with a kind of magnetic material that forms by permanent-magnet powder and binding agent.Binding agent has macromolecule resin such as epoxy resin, phenolic resins, nylon, polypropylene etc., also has soft metal such as copper, aluminium etc.When making magneto with the thin-walled magnet ring, the mechanical performance of magnet ring such as tensile strength, compression strength are had relatively high expectations, selecting epoxy resin at present is that the thin-walled magnet ring of binding agent adds man-hour carrying out injection moulding as inserts, percentage of damage is up to about 20%, magnet generation producer and electrical micro-machine manufacturer are all worried for it, press for and solve this difficult problem, to enhance productivity and economic benefit.
Summary of the invention
Purpose of the present invention is exactly that a kind of intensity height, binding electromagnetic material and manufacture method thereof that cost is low are provided in order to overcome the defective that above-mentioned prior art exists.
Purpose of the present invention can be achieved through the following technical solutions: a kind of binding electromagnetic material, it is characterized in that this material is to be mixed with by compound binding agent and permanent magnetic powder to form, and its prescription (percetage by weight) is as follows:
Compound binding agent 1.5～40%
Permanent magnetic powder 60-98.5%
Described compound binding agent is mixed by soft metal powder and macromolecule resin binding agent, and they respectively account for 5～95% weight ratio scope in the compound binding agent total amount.
Described soft metal powder is selected from a kind of in copper powder, the metallic aluminium powder.
Described macromolecule resin binding agent is selected from one or more in epoxy resin, phenolic resins, nylon, polypropylene, the liquid crystalline resin.
Described permanent magnetic powder is selected from Fe
3In B, ferrite, NdFeB, aluminium nickel cobalt, SmCo, the samarium iron nitrogen one or more.
A kind of manufacture method of binding electromagnetic material is characterized in that, this method adopts following processing step:
The first step: preparation compound binding agent;
Be 5～95% soft metal powder with the percetage by weight that accounts for the compound binding agent total amount with the percetage by weight that accounts for the compound binding agent total amount be that 5～95% macromolecule resin binding agent mixes at normal temperatures and pressures, make compound binding agent;
Second step: preparation binding electromagnetic material;
Being that 1.5～40% compound binding agent is that 60～98.5% permanent magnetic powders mix with the percetage by weight that accounts for the binding electromagnetic material total amount with the percetage by weight that accounts for the binding electromagnetic material total amount, is 2～10 tons/centimetre at normal temperature and pressure then
2Press in compression moulding, solidify down at 120～180 ℃ again, make binding electromagnetic material through the antirust processing in surface, after magnetizing.
Also can apply gap magnetic field in described second step preparation binding electromagnetic material technology greater than 0.1 tesla.
The binding electromagnetic material that the present invention adopts compound binding agent to make is compared with at present existing other bonded permanent magnet, has the following advantages:
1, magnet mechanical performance height: magnet tensile strength, compression strength are the important indicators of fragmentation when preventing magnet ring as inserts injection moulding.With the Agglutinate neodymium-iron-boron is example, and the compression strength of neodymium iron boron binding magnet ring generally is not more than 200Mpa at present, and the bonding magnet ring of the neodymium iron boron that the present invention makes, because the compound binding agent of the batching of adopting new technology makes compression strength greater than 280Mpa.
2, deducted the magnet ring strutting piece: because magnet ring is easily cracked as inserts injection moulding the time, therefore many producers are stained with strutting piece such as metallic sheath at the magnet ring inwall, to reduce the magnet ring percentage of damage.But the problem of bringing is: increased operation, increased the strutting piece cost, increased the probability that defective item occurs.And after adopting compound binding agent of the present invention, can deduct the magnet ring strutting piece, thereby reduced production cost.
3, remarkable in economical benefits:, improved product percent of pass, remarkable in economical benefits owing to improved the mechanical performance of binding electromagnetic material.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1:
1, the preparation of compound binding agent:
Epoxy adhesive is mixed by weight 1: 3 with the soft metal copper powder, make compound binding agent.
2, compound binding agent is used for the binding electromagnetic material production technology:
With compound binding agent and Fe
3B, ferrite, NdFeB magnetic were by 13: 47: 20: 20 weight ratio is mixed, at briquetting pressure 〉=4T/cm
2Condition under suppress.Curing, surface treatment again, magnetize and promptly make bonded permanent magnet.Its main performance is:
Br：0.44T
Hcb：168kA/m
Hcj：272kA/m
(B·H)m：20.8kJ/m
3
Compression strength: 290MPa
Density: 5.4g/cm
3
Embodiment 2:
1, the preparation of compound binding agent:
Epoxy adhesive is mixed by weight 1: 3 with the soft metal copper powder, make compound binding agent.
2, compound binding agent is used for the binding electromagnetic material production technology:
With compound binding agent and Fe
3B, ferromagnetic oxide powder are pressed the mixing of 15: 75: 10 weight, at briquetting pressure 〉=5T/cm
2Condition under suppress.Promptly make bonded permanent magnet in curing, surface treatment, after magnetizing.Its main performance is:
Br：0.54T
Hcb：166kA/m
Hcj：233kA/m
(B·H)m：25.4kJ/m
3
Density: 5.8g/cm
3
Compression strength: 292Mpa
Embodiment 3:
1, the preparation of compound binding agent:
Epoxy adhesive is mixed by weight 1: 10 with the soft metal aluminium powder, make compound binding agent.
2, compound binding agent is used for the binding electromagnetic material production technology:
Compound binding agent is mixed by 3.5: 60: 36.5 weight ratio with aluminium nickel cobalt, NdFeB magnetic, at briquetting pressure 〉=6T/cm
2Condition under suppress.Curing, surface treatment again, magnetize and promptly make bonded permanent magnet.Its main performance is:
Br：0.46T
Hcb：144kA/m
Hcj：215kA/m
(B·H)m：12.5kJ/m
3
Compression strength: 308MPa
Density: 5.5g/cm
3
Embodiment 4:
1, the preparation of compound binding agent:
Epoxy adhesive is mixed by weight 12: 1 with the soft metal copper powder, make compound binding agent.
2, compound binding agent is used for the binding electromagnetic material production technology:
With compound binding agent and Fe
3B, ferrite, Sm
2Co
17Magnetic was by 10: 5: 5: 80 weight ratio is mixed, at briquetting pressure 〉=2T/cm
2Suppress under the condition of (applying gap magnetic field) greater than 0.1 tesla.Promptly make bonded permanent magnet in curing, surface treatment, after magnetizing.Its main performance is:
Br：0.55T
Hcb：315kA/m
Hct：797kA/m
(B·H)m：45.2kJ/m
3
Density: 5.3g/cm
3
Compression strength: 286Mpa
The present invention can be widely used in the production of compression molding, injection moulding binding electromagnetic material product, the field of particularly the magnet mechanical performance being had relatively high expectations, and more has a wide range of applications.
Claims (7)
1. a binding electromagnetic material is characterized in that, this material is to be mixed with by compound binding agent and permanent magnetic powder to form, and its prescription (percetage by weight) is as follows:
Compound binding agent 1.5～40%
Permanent magnetic powder 60-98.5%
2. binding electromagnetic material according to claim 1 is characterized in that, described compound binding agent is mixed by soft metal powder and macromolecule resin binding agent, and they respectively account for 5～95% weight ratio scope in the compound binding agent total amount.
3. binding electromagnetic material according to claim 2 is characterized in that, described soft metal powder is selected from a kind of in copper powder, the metallic aluminium powder.
4. binding electromagnetic material according to claim 2 is characterized in that, described macromolecule resin binding agent is selected from one or more in epoxy resin, phenolic resins, nylon, polypropylene, the liquid crystalline resin.
5. binding electromagnetic material according to claim 1 is characterized in that described permanent magnetic powder is selected from Fe
3In B, ferrite, NdFeB, aluminium nickel cobalt, SmCo, the samarium iron nitrogen one or more.
6. the manufacture method of a binding electromagnetic material is characterized in that, this method adopts following processing step:
The first step: preparation compound binding agent;
Be 5～95% soft metal powder with the percetage by weight that accounts for the compound binding agent total amount with the percetage by weight that accounts for the compound binding agent total amount be that 5～95% macromolecule resin binding agent mixes at normal temperatures and pressures, make compound binding agent;
Second step: preparation binding electromagnetic material;
Being that 1.5～40% compound binding agent is that 60～98.5% permanent magnetic powders mix with the percetage by weight that accounts for the binding electromagnetic material total amount with the percetage by weight that accounts for the binding electromagnetic material total amount, is 2～10 tons/centimetre at normal temperature and pressure then
2Press in compression moulding, solidify down at 120～180 ℃ again, make binding electromagnetic material through the antirust processing in surface, after magnetizing.
7. the manufacture method of binding electromagnetic material according to claim 6 is characterized in that, also can apply the gap magnetic field greater than 0.1 tesla in described second step preparation binding electromagnetic material technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021362769A CN1293578C (en) | 2002-07-29 | 2002-07-29 | Permanent-magnetic binding material and producing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021362769A CN1293578C (en) | 2002-07-29 | 2002-07-29 | Permanent-magnetic binding material and producing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1472753A true CN1472753A (en) | 2004-02-04 |
| CN1293578C CN1293578C (en) | 2007-01-03 |
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ID=34146392
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021362769A Expired - Fee Related CN1293578C (en) | 2002-07-29 | 2002-07-29 | Permanent-magnetic binding material and producing method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982995A (en) * | 2012-12-17 | 2013-03-20 | 湖南航天工业总公司 | Microwave curing process of bonded NdFeB magnet |
| CN103013044A (en) * | 2012-12-04 | 2013-04-03 | 南昌大学 | Preparation method of epoxy resin with magnetism |
| CN103887056A (en) * | 2014-03-01 | 2014-06-25 | 潍坊德诺磁业有限公司 | Neodymium-iron-boron adhesive magnet forming machine and machining process for neodymium-iron-boron adhesive magnet |
| CN104376945A (en) * | 2014-12-05 | 2015-02-25 | 湖南航天磁电有限责任公司 | Bonded Nd-Fe-B magnet and manufacturing method thereof |
| 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 |
| CN106349686A (en) * | 2015-07-16 | 2017-01-25 | 车声雷 | High-performance polyamide/samarium-iron-nitrogen magnetic composite material and preparation method thereof |
| CN107359036A (en) * | 2016-05-09 | 2017-11-17 | 北京中科三环高技术股份有限公司 | A kind of bonded permanent magnet and preparation method thereof |
| CN108010651A (en) * | 2017-12-13 | 2018-05-08 | 江西伟普科技有限公司 | A kind of preparation method of more magnetic powder mixing bonded magnetic materials |
| CN108132296A (en) * | 2017-11-09 | 2018-06-08 | 宁波恒信工程检测有限公司 | A kind of storage tank leakage magnetic detection device |
| CN108831660A (en) * | 2015-10-13 | 2018-11-16 | 赵鑫飚 | A kind of compoiste adhering rare earth permanent-magnetic material |
| CN111566766A (en) * | 2017-12-28 | 2020-08-21 | 日立化成株式会社 | Method for producing rare earth metal bonded magnet and rare earth metal bonded magnet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002053837A (en) * | 2000-08-09 | 2002-02-19 | Asmo Co Ltd | Adhesive composition, assembled product and motor |
-
2002
- 2002-07-29 CN CNB021362769A patent/CN1293578C/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013044A (en) * | 2012-12-04 | 2013-04-03 | 南昌大学 | Preparation method of epoxy resin with magnetism |
| CN103013044B (en) * | 2012-12-04 | 2014-08-06 | 南昌大学 | Preparation method of epoxy resin with magnetism |
| CN102982995A (en) * | 2012-12-17 | 2013-03-20 | 湖南航天工业总公司 | Microwave curing process of bonded NdFeB magnet |
| CN103887056B (en) * | 2014-03-01 | 2017-07-04 | 潍坊德诺磁业有限公司 | The processing technology of neodymium iron boron bonded magnet |
| CN103887056A (en) * | 2014-03-01 | 2014-06-25 | 潍坊德诺磁业有限公司 | Neodymium-iron-boron adhesive magnet forming machine and machining process for neodymium-iron-boron adhesive magnet |
| CN104376945A (en) * | 2014-12-05 | 2015-02-25 | 湖南航天磁电有限责任公司 | Bonded Nd-Fe-B magnet and manufacturing method thereof |
| CN106349686B (en) * | 2015-07-16 | 2019-05-03 | 杭州海声科技有限公司 | A kind of high-performance polyamide/samarium iron nitrogen magnetic composite and preparation method thereof |
| CN106349686A (en) * | 2015-07-16 | 2017-01-25 | 车声雷 | High-performance polyamide/samarium-iron-nitrogen magnetic composite material and preparation method thereof |
| 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 |
| CN108831660A (en) * | 2015-10-13 | 2018-11-16 | 赵鑫飚 | A kind of compoiste adhering rare earth permanent-magnetic material |
| CN108831660B (en) * | 2015-10-13 | 2019-12-13 | 乐清市钜派企业管理咨询有限公司 | Composite bonded rare earth permanent magnet material |
| CN107359036A (en) * | 2016-05-09 | 2017-11-17 | 北京中科三环高技术股份有限公司 | A kind of bonded permanent magnet and preparation method thereof |
| CN107359036B (en) * | 2016-05-09 | 2020-02-04 | 北京中科三环高技术股份有限公司 | Bonded magnet and preparation method thereof |
| CN108132296A (en) * | 2017-11-09 | 2018-06-08 | 宁波恒信工程检测有限公司 | A kind of storage tank leakage magnetic detection device |
| CN108132296B (en) * | 2017-11-09 | 2021-09-21 | 宁波恒信工程检测有限公司 | Magnetic leakage detection device for storage tank |
| CN108010651A (en) * | 2017-12-13 | 2018-05-08 | 江西伟普科技有限公司 | A kind of preparation method of more magnetic powder mixing bonded magnetic materials |
| CN111566766A (en) * | 2017-12-28 | 2020-08-21 | 日立化成株式会社 | Method for producing rare earth metal bonded magnet and rare earth metal bonded magnet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1293578C (en) | 2007-01-03 |
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Granted publication date: 20070103 Termination date: 20130729 |