CN104795199A - Corrosion-proof radial-anisotropy magnetic ring - Google Patents
Corrosion-proof radial-anisotropy magnetic ring Download PDFInfo
- Publication number
- CN104795199A CN104795199A CN201510244880.1A CN201510244880A CN104795199A CN 104795199 A CN104795199 A CN 104795199A CN 201510244880 A CN201510244880 A CN 201510244880A CN 104795199 A CN104795199 A CN 104795199A
- Authority
- CN
- China
- Prior art keywords
- corrosion
- magnetic ring
- protective film
- magnet ring
- thickness
- 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
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Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
Abstract
The invention provides a corrosion-proof radial-anisotropy magnetic ring. The corrosion-proof radial-anisotropy magnetic ring consists of a magnetic ring body, an insulating coating and a corrosion-proof protective film sequentially from inside to outside, wherein the magnetic ring body is a NdFeB permanent-magnet magnetic ring, the insulating coating is an epoxy coating, the corrosion-proof protective film is a zinc-chromium film, which is prepared through baking the following raw materials in parts by weight: 8-10 parts of zinc powder, 1-2 parts of aluminum powder, 1-2 parts of chromic oxide and 0.03-0.05 part of film forming assistant, the thickness of the epoxy coating is 50-70 microns, and the thickness of the corrosion-proof protective film is 50-70 microns. The corrosion-proof radial-anisotropy magnetic ring provided by the invention has the technical effect that the NdFeB permanent-magnet magnetic ring can be protected, and thus the magnetic property cannot be lowered even the magnetic ring is subjected to relatively strong corrosion.
Description
Technical field
The present invention relates to a kind of anticorrosion footpath anisotropy magnet ring, belong to technical field of magnetic materials.
Background technology
Magnet ring is a kind of novel cheap and good-quality AF panel device, is utilize high magnetic conductive material, oozes metals such as closing other one or more magnesium, zinc, nickel, burns poly-forming at 2000 DEG C.It is anti-interference element conventional in electronic circuit, has certain impedance operator, has good inhibitory action for high-frequency noise.Be applicable to computer monitor, printer, photocopier, digital camera, communication apparatus, household electrical appliance, communication power supply, winding displacement, power line, USB linear system row anti-jamming effectiveness.Its effect is equivalent to low pass filter, solves power line preferably, and the High-frequency Interference of holding wire and connector suppresses problem.And have and use simple, convenient, effectively, the series of advantages such as take up room little.Disturbing magnet ring with anti-thousand and suppress electromagnetic interference (EMI), is economical and convenient and effective method.
Under certain environment for use, if magnet is subject to stronger corrosion, magnetic can be caused to decline, therefore improve the anticorrosive property of magnet.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, a kind of anticorrosion footpath anisotropy magnet ring is provided.
Anticorrosion footpath of the present invention anisotropy magnet ring; from inside to outside; be made up of magnet ring body, insulating coating and anti-corrosion protective film successively; described magnet ring body is Nd-Fe-B permanent magnet magnet ring; described insulating coating is epoxy coating; described anti-corrosion protective film is Zinc-Chromium film; described Zinc-Chromium film is toasted by following raw material and is formed: zinc powder 8-10 weight portion; aluminium powder 1-2 weight portion; chromium oxide 1-2 weight portion; coalescents 0.03-0.05 weight portion, the thickness of described epoxy coating is 50-70 micron, and the thickness of described anti-corrosion protective film is 50-70 micron.
The thickness of described epoxy coating and the Thickness Ratio of anti-corrosion protective film are 1:1.
Anticorrosion footpath of the present invention anisotropy magnet ring, has following technique effect: can protect Nd-Fe-B permanent magnet magnet ring, even if be subject to stronger corrosion, magnetic also can not be caused to decline.
Embodiment
embodiment 1
The anticorrosion footpath anisotropy magnet ring of the present embodiment; from inside to outside; be made up of magnet ring body, insulating coating and anti-corrosion protective film successively; described magnet ring body is Nd-Fe-B permanent magnet magnet ring, and described insulating coating is epoxy coating, and described anti-corrosion protective film is Zinc-Chromium film; described Zinc-Chromium film is toasted by following raw material and is formed: zinc powder 10 weight portion; aluminium powder 1 weight portion, chromium oxide 2 weight portion, coalescents 0.05 weight portion.
The thickness of described epoxy coating is 50 microns; The thickness of described titanium nitride coating is 50 microns.
embodiment 2
The anticorrosion footpath anisotropy magnet ring of the present embodiment; from inside to outside; be made up of magnet ring body, insulating coating and anti-corrosion protective film successively; described magnet ring body is Nd-Fe-B permanent magnet magnet ring, and described insulating coating is epoxy coating, and described anti-corrosion protective film is Zinc-Chromium film; described Zinc-Chromium film is toasted by following raw material and is formed: zinc powder 8 weight portion; aluminium powder 2 weight portion, chromium oxide 1 weight portion, coalescents 0.03 weight portion.
The thickness of described epoxy coating is 70 microns; The thickness of described titanium nitride coating is 70 microns.
embodiment 3
The anticorrosion footpath anisotropy magnet ring of the present embodiment; from inside to outside; be made up of magnet ring body, insulating coating and anti-corrosion protective film successively; described magnet ring body is Nd-Fe-B permanent magnet magnet ring, and described insulating coating is epoxy coating, and described anti-corrosion protective film is Zinc-Chromium film; described Zinc-Chromium film is toasted by following raw material and is formed: zinc powder 9 weight portion; aluminium powder 1.5 weight portion, chromium oxide 1.5 weight portion, coalescents 0.04 weight portion.
The thickness of described epoxy coating is 60 microns; The thickness of described titanium nitride coating is 60 microns.
Claims (2)
1. an anticorrosion footpath anisotropy magnet ring, it is characterized in that, from inside to outside, be made up of magnet ring body, insulating coating and anti-corrosion protective film successively, described magnet ring body is Nd-Fe-B permanent magnet magnet ring, described insulating coating is epoxy coating, described anti-corrosion protective film is Zinc-Chromium film, described Zinc-Chromium film is toasted by following raw material and is formed: zinc powder 8-10 weight portion, aluminium powder 1-2 weight portion, chromium oxide 1-2 weight portion, coalescents 0.03-0.05 weight portion, the thickness of described epoxy coating is 50-70 micron; The thickness of described anti-corrosion protective film is 50-70 micron.
2. anticorrosion footpath according to claim 1 anisotropy magnet ring, is characterized in that, the thickness of described epoxy coating and the Thickness Ratio of anti-corrosion protective film are 1:1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510244880.1A CN104795199A (en) | 2015-05-14 | 2015-05-14 | Corrosion-proof radial-anisotropy magnetic ring |
| PCT/CN2015/095045 WO2016179998A1 (en) | 2015-05-14 | 2015-11-19 | Corrosion-proof radially anisotropic magnetic ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510244880.1A CN104795199A (en) | 2015-05-14 | 2015-05-14 | Corrosion-proof radial-anisotropy magnetic ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104795199A true CN104795199A (en) | 2015-07-22 |
Family
ID=53559947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510244880.1A Pending CN104795199A (en) | 2015-05-14 | 2015-05-14 | Corrosion-proof radial-anisotropy magnetic ring |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104795199A (en) |
| WO (1) | WO2016179998A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070459A (en) * | 2015-08-10 | 2015-11-18 | 海安县巨力磁材有限责任公司 | Surface corrosion-prevention radial anisotropic magnetic ring |
| WO2016179998A1 (en) * | 2015-05-14 | 2016-11-17 | 海安县巨力磁材有限责任公司 | Corrosion-proof radially anisotropic magnetic ring |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653643A (en) * | 2012-04-24 | 2012-09-05 | 包头稀土研究院 | Zinc-based composite coating for improving corrosion resistance of neodymium-iron-boron magnet |
| CN104004397A (en) * | 2013-09-18 | 2014-08-27 | 中磁科技股份有限公司 | Masking liquid used for surface protection of neodymium iron boron magnet, and preparation method thereof |
| CN104575924A (en) * | 2015-02-11 | 2015-04-29 | 海安县巨力磁材有限责任公司 | Rust-resistance radial heterogenous magnetic ring |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795199A (en) * | 2015-05-14 | 2015-07-22 | 海安县巨力磁材有限责任公司 | Corrosion-proof radial-anisotropy magnetic ring |
-
2015
- 2015-05-14 CN CN201510244880.1A patent/CN104795199A/en active Pending
- 2015-11-19 WO PCT/CN2015/095045 patent/WO2016179998A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102653643A (en) * | 2012-04-24 | 2012-09-05 | 包头稀土研究院 | Zinc-based composite coating for improving corrosion resistance of neodymium-iron-boron magnet |
| CN104004397A (en) * | 2013-09-18 | 2014-08-27 | 中磁科技股份有限公司 | Masking liquid used for surface protection of neodymium iron boron magnet, and preparation method thereof |
| CN104575924A (en) * | 2015-02-11 | 2015-04-29 | 海安县巨力磁材有限责任公司 | Rust-resistance radial heterogenous magnetic ring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016179998A1 (en) * | 2015-05-14 | 2016-11-17 | 海安县巨力磁材有限责任公司 | Corrosion-proof radially anisotropic magnetic ring |
| CN105070459A (en) * | 2015-08-10 | 2015-11-18 | 海安县巨力磁材有限责任公司 | Surface corrosion-prevention radial anisotropic magnetic ring |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016179998A1 (en) | 2016-11-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate 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: 20150722 |