CN108615593A - A kind of optoisolator magnet ring and preparation method thereof - Google Patents
A kind of optoisolator magnet ring and preparation method thereof Download PDFInfo
- Publication number
- CN108615593A CN108615593A CN201810409007.7A CN201810409007A CN108615593A CN 108615593 A CN108615593 A CN 108615593A CN 201810409007 A CN201810409007 A CN 201810409007A CN 108615593 A CN108615593 A CN 108615593A
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- CN
- China
- Prior art keywords
- samarium
- optoisolator
- alloy powder
- cobalt alloy
- magnet ring
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0205—Magnetic circuits with PM in general
- H01F7/021—Construction of PM
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/09—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect
- G02F1/093—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on magneto-optical elements, e.g. exhibiting Faraday effect used as non-reciprocal devices, e.g. optical isolators, circulators
-
- 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
- H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
- H01F1/0557—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together sintered
-
- 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
- H01F1/0555—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together
- H01F1/0558—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 pressed, sintered or bonded together bonded together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0266—Moulding; Pressing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Nonlinear Science (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The present invention relates to a kind of optoisolator magnet rings, include the permanent magnet of annular, and the permanent magnet includes externally sintered layer and interior adhesive layer, and externally sintered layer is samarium-cobalt alloy powder body melting sintering structure, and interior adhesive layer is samarium-cobalt alloy powder thermosetting resin adhesive structure.The optoisolator magnet ring of the present invention can reduce centre bore difficulty of processing, improve yields and production efficiency.In addition, the optoisolator magnet ring of the structure does not interfere with its magnetic property still based on molten sintering structure.
Description
Technical field
The present invention relates to a kind of optoisolator magnet rings and preparation method thereof, belong to optical communication device preparing technical field.
Background technology
Optoisolator be a kind of allow Unidirectional light by Passive Optical Components, operation principle be based on Faraday rotation
Nonreciprocity.Can well it be isolated by optoisolator by the light of optical fiber echo reflection.Optoisolator mainly utilizes magneto-optic
The Faraday effect of crystal.The magnet ring of samarium-cobalt material is the critical elements for constituting optoisolator.
SmCo magnetic material is a kind of valuable rare powder metallurgy product, and physical characteristic is hard and crisp, Vickers hardness
For 550-600HV/MPa.Because brittleness is very big, difficulty of processing is also very big, it cannot directly be bored as other metal materials
Hole.It is after carrying out laser boring to cylindricality green body, to recycle steel wire grinder to carry out reaming, obtain meeting size in the prior art
Magnet ring, but due to the hard and crisp characteristic of samarium-cobalt alloy, the yields of this method is still relatively low, and the production efficiency of abrasive expanding holes
Also very low.
Invention content
The purpose of the present invention is to provide a kind of optoisolator magnet rings and preparation method thereof, and concrete scheme is：
A kind of optoisolator magnet ring includes the permanent magnet of annular, and the permanent magnet includes externally sintered layer and interior adhesive layer, externally sintered
Layer is samarium-cobalt alloy powder body melting sintering structure, and interior adhesive layer is samarium-cobalt alloy powder thermosetting resin adhesive structure.
Further, the outer diameter of the permanent magnet is 2mm, internal diameter 1mm, and the thickness of the interior adhesive layer is not more than
0.2mm。
The present invention also provides the preparation methods of above-mentioned optoisolator magnet ring, include the following steps：
1）Samarium-cobalt alloy powder is produced, the grain size of samarium-cobalt alloy powder is 4 ~ 6 μm；
2）A part of samarium-cobalt alloy powder is taken, and 30% thermosetting resin adhesive, die mould after mixing, by being heating and curing is added
Afterwards, the bonding cylinder of diameter 1.2mm is obtained；
3）By the cohesive cylinder and a part of common die mould of samarium-cobalt alloy powder, cylindricality green body is obtained, wherein bonding cylinder position
At the center of the cylindricality green body；
4）The cylindricality green body is passed through into closed high temperature sintering, cylindricality sintered body is obtained after cooling；
5）Cylindricality sintered body is subjected to center hole machined, the processing dimension of centre bore is not more than the diameter for bonding cylinder；It is most laggard
Row grinding obtains optoisolator magnet ring after magnetizing.
The optoisolator magnet ring of the present invention uses lamination layer structure, outer layer to use samarium-cobalt alloy powder body melting sintering structure,
Internal layer uses samarium-cobalt alloy powder thermosetting resin adhesive structure.At center when hole machined, the range of work is in internal layer, due to tree
For fat adhesive structure using resin coking as Binder Phase after high temperature sintering, hardness is relatively low, can reduce centre bore difficulty of processing, improves
Yields and production efficiency.In addition, the optoisolator magnet ring of the structure does not interfere with it still based on molten sintering structure
Magnetic property.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Specific implementation mode
A kind of optoisolator magnet ring as shown in Figure 1, includes the permanent magnet of annular, and the permanent magnet includes externally sintered layer 1 and interior
Adhesive layer 2, externally sintered layer are samarium-cobalt alloy powder body melting sintering structure, and interior adhesive layer is viscous for samarium-cobalt alloy powder thermosetting resin
Junction structure.
The outer diameter of the permanent magnet is 2mm, and the thickness of internal diameter 1mm, the interior adhesive layer are not more than 0.2mm.
The present invention also provides the preparation methods of above-mentioned optoisolator magnet ring, include the following steps：
1）Samarium-cobalt alloy powder is produced, the grain size of samarium-cobalt alloy powder is 4 ~ 6 μm；
2）A part of samarium-cobalt alloy powder is taken, and 30% thermosetting resin adhesive, die mould after mixing, by being heating and curing is added
Afterwards, the bonding cylinder of diameter 1.2mm is obtained；
3）By the cohesive cylinder and a part of common die mould of samarium-cobalt alloy powder, cylindricality green body is obtained, wherein bonding cylinder position
At the center of the cylindricality green body；
4）The cylindricality green body is passed through into closed high temperature sintering, cylindricality sintered body is obtained after cooling；
5）Cylindricality sintered body is subjected to center hole machined, the processing dimension of centre bore is not more than the diameter for bonding cylinder；It is most laggard
Row grinding obtains optoisolator magnet ring after magnetizing.
The optoisolator magnet ring of the present invention uses lamination layer structure, outer layer to use samarium-cobalt alloy powder body melting sintering structure,
Internal layer uses samarium-cobalt alloy powder thermosetting resin adhesive structure.At center when hole machined, the range of work is in internal layer, due to tree
For fat adhesive structure using resin coking as Binder Phase after high temperature sintering, hardness is relatively low, can reduce centre bore difficulty of processing, improves
Yields and production efficiency.In addition, the optoisolator magnet ring of the structure does not interfere with it still based on molten sintering structure
Magnetic property.
Claims (3)
1. a kind of optoisolator magnet ring includes the permanent magnet of annular, it is characterised in that：The permanent magnet includes externally sintered layer and interior
Adhesive layer, externally sintered layer are samarium-cobalt alloy powder body melting sintering structure, and interior adhesive layer is viscous for samarium-cobalt alloy powder thermosetting resin
Junction structure.
2. optoisolator magnet ring according to claim 1, it is characterised in that：The outer diameter of the permanent magnet is 2mm, and internal diameter is
The thickness of 1mm, the interior adhesive layer are not more than 0.2mm.
3. the preparation method of optoisolator magnet ring according to claim 1 or 2, which is characterized in that include the following steps：
1）Samarium-cobalt alloy powder is produced, the grain size of samarium-cobalt alloy powder is 4 ~ 6 μm；
2）A part of samarium-cobalt alloy powder is taken, and 30% thermosetting resin adhesive, die mould after mixing, by being heating and curing is added
Afterwards, the bonding cylinder of diameter 1.2mm is obtained；
3）By the cohesive cylinder and a part of common die mould of samarium-cobalt alloy powder, cylindricality green body is obtained, wherein bonding cylinder position
At the center of the cylindricality green body；
4）The cylindricality green body is passed through into closed high temperature sintering, cylindricality sintered body is obtained after cooling；
5）Cylindricality sintered body is subjected to center hole machined, the processing dimension of centre bore is not more than the diameter for bonding cylinder；It is most laggard
Row grinding obtains optoisolator magnet ring after magnetizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810409007.7A CN108615593B (en) | 2018-05-02 | 2018-05-02 | A kind of optoisolator magnet ring and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810409007.7A CN108615593B (en) | 2018-05-02 | 2018-05-02 | A kind of optoisolator magnet ring and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108615593A true CN108615593A (en) | 2018-10-02 |
| CN108615593B CN108615593B (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810409007.7A Active CN108615593B (en) | 2018-05-02 | 2018-05-02 | A kind of optoisolator magnet ring and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111640566A (en) * | 2020-05-20 | 2020-09-08 | 杭州三炻磁性材料有限公司 | Process method for pressing constant-pressure constant-magnetism samarium cobalt powder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3898599A (en) * | 1974-05-09 | 1975-08-05 | Raytheon Co | Toroidal magnetic device |
| CN101034210A (en) * | 2006-03-06 | 2007-09-12 | 胡振武 | Optical communication insulator samarium cobalt magnetic ring |
| CN201041763Y (en) * | 2007-04-29 | 2008-03-26 | 沈阳工业大学 | Strong magnetic field permanent magnetic structure for preventing from abnormal magnetization |
| CN106783001A (en) * | 2016-11-23 | 2017-05-31 | 重庆帆玛机车制造有限公司 | Motorcycle, automobile mileage table magnet steel and its production method |
-
2018
- 2018-05-02 CN CN201810409007.7A patent/CN108615593B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3898599A (en) * | 1974-05-09 | 1975-08-05 | Raytheon Co | Toroidal magnetic device |
| CN101034210A (en) * | 2006-03-06 | 2007-09-12 | 胡振武 | Optical communication insulator samarium cobalt magnetic ring |
| CN201041763Y (en) * | 2007-04-29 | 2008-03-26 | 沈阳工业大学 | Strong magnetic field permanent magnetic structure for preventing from abnormal magnetization |
| CN106783001A (en) * | 2016-11-23 | 2017-05-31 | 重庆帆玛机车制造有限公司 | Motorcycle, automobile mileage table magnet steel and its production method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111640566A (en) * | 2020-05-20 | 2020-09-08 | 杭州三炻磁性材料有限公司 | Process method for pressing constant-pressure constant-magnetism samarium cobalt powder |
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| CN108615593B (en) | 2019-11-05 |
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