CN201532823U - Built-up magnet - Google Patents
Built-up magnet Download PDFInfo
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- CN201532823U CN201532823U CN2009202721930U CN200920272193U CN201532823U CN 201532823 U CN201532823 U CN 201532823U CN 2009202721930 U CN2009202721930 U CN 2009202721930U CN 200920272193 U CN200920272193 U CN 200920272193U CN 201532823 U CN201532823 U CN 201532823U
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Abstract
A built-up magnet belongs to the magnet field, and relates to a flat-type object with identical thickness. The built-up magnet comprises a magnet main body layer and a magnet surface compound layer, wherein the magnet main body layer comprises an upper and a lower lateral faces, one lateral face or the upper and the lower lateral faces of the magnet main body layer are attached with the magnet surface compound layer, the magnet main body layer and the magnet surface compound layer are in an integrated structure and are connected in an alloying mode, the magnet main body layer is an alnico magnet layer, and the magnet surface compound layer is a magnetic temperature compensation material alloy magnet body layer. Compared with the prior art, the built-up magnet has the beneficial effects of corresponding magnetic performances to change along with temperature, maintains stability under high temperature state, does not need adhesives or riveting, can avoid from loosening and dropping out due to improper assembling or wearing, has no gaps, reduces magnetic resistance consumption, and enhances magnetic use ratio.
Description
Technical field
The utility model relates to a kind of built-up magnet, relates to particularly that a kind of magnetic body layer and magnet surface composite bed be structure as a whole, and has the built-up magnet of magnetic temp compensating effect.
Background technology
Built-up magnet is a kind of important functional parts, adopts multiple materials processing to form, and is mainly used in electronics telecommunication, instrument and meter, also is widely used in fields such as health care, office appliances, household electrical appliance, cultural goods.The present production technology of built-up magnet is a kind of to be, built-up magnet two parts adopt processing respectively, are bonded to together with binding agent then, and the in fact this complex that can not be called truly is a kind of assembly; Another kind is to mix with magnetic and rubber or resin to process.The complex of first kind of explained hereafter is owing to adopt two kinds of materials to process respectively, time-consuming taking a lot of work, and cost is higher.Above-mentioned two kinds of technologies have all adopted binding agent, and its permanent magnet system can not vary with temperature and can keep stable, and the scope of application has been subjected to certain restriction, particularly some high temperature field.For some permanent magnet system, require variations in temperature and can keep stable, such as the instrument permanent magnet system, must in permanent magnet system, add magnetic temperature compensating alloy in addition.Magnetic temperature compensating alloy generally adopts iron-nickel alloy, in use adopts adhesive or realizes that with the method for riveted compensating action is because of assembling loose or dislocation problem improper or that wear and tear and produce; Because magnetic body layer and magnet surface composite bed are not integrative-structures, the slit is arranged between two-layer, increased the magnetic resistance loss, influenced the magnetic utilance.
The utility model content
The purpose of this utility model is the defective at above-mentioned prior art, provides a kind of magnetic body layer and magnet surface composite bed to be structure as a whole, and has the built-up magnet of magnetic temp compensating effect.
The technical scheme taked of the utility model is to achieve these goals: a kind of built-up magnet, be equal thickness, flat object, comprise magnetic body layer and magnet surface composite bed, the magnetic body layer comprises upper and lower two sides, a side of magnetic body layer or upper and lower two sides are with the magnet surface composite bed, and magnetic body layer and magnet surface composite bed are structure as a whole.
Described magnetic body layer is that alloying is connected with the magnet surface composite bed.
Described magnetic body layer is an alnico alloy magnet layer.
Described magnet surface composite bed is a magnetic temp compensating material alloys magnet layer.
The way that the utility model avoids the processing respectively of present magnet and magnetic temp compensating material to assemble then, adopt the alnico magnet raw material and the layering of magnetic temperature compensating alloy raw material stacks, one-shot forming, behind sintering, form the composite material of an alloying, through magnetic-field heat treatment, form then and have respective magnetic and can be able to vary with temperature and can keep stable built-up magnet.
Compared with prior art, the beneficial effects of the utility model are:
(1) having respective magnetic can be able to vary with temperature, and can keep stable under the condition of high temperature.
(2) realized the alloying of magnet and magnetic magnetic temp compensating material, formed an integral body, do not needed adhesive or riveted, can avoid because of assembling loose or dislocation problem improper or that wearing and tearing produce.
(3) since magnetic body layer and magnet surface composite bed be structure as a whole, between do not have the slit, reduced the magnetic resistance loss, improved the magnetic utilance.
Description of drawings
Accompanying drawing 1: a side of magnetic body layer is with the built-up magnet of magnet surface composite bed;
Accompanying drawing 2: upper and lower two sides of magnetic body layer are with the built-up magnet of magnet surface composite bed.
Description of reference numerals: 1 magnetic body layer, 11 upper side, 12 downsides, 2 magnet upper surface composite beds, 3 magnet lower surface composite beds
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.
As shown in Figure 1, a kind of built-up magnet, be equal thickness, flat object, comprise magnetic body layer 1 and magnet upper surface composite bed 2, magnetic body layer 1 comprises upper side 11 and downside 12, the upper side 11 of magnetic body layer 1 is with magnet upper surface composite bed 2, and magnetic body layer 1 and magnet upper surface composite bed 2 are structure as a whole.Described magnetic body layer 1 is an alnico alloy magnet layer; Described magnet upper surface composite bed 2 is magnetic temp compensating material alloys magnet (iron-nickel alloy) layer.Prepare alnico alloy magnet powder and magnetic temp compensating material alloys magnet (iron-nickel alloy) powder respectively separately, batch mixing is wanted evenly.Adopt dry powder press compression moulding, earlier alnico alloy magnet powder (magnetic body layer 1) is added in the mould die, add magnetic temp compensating material alloys magnet (iron-nickel alloy) powder (magnet upper surface composite bed 2) again, pressurization compacting again forms moulded blank.Sintering is put into the sintering boat to moulded blank again, and with diamond spar sand landfill, adopts normal sintering technology to carry out sintering with vacuum sintering furnace, makes magnetic body layer 1 become alloying with magnet upper surface composite bed 2 and is connected.Again through magnetic-field heat treatment, form then and have respective magnetic and can be able to vary with temperature and can keep stable built-up magnet.
As shown in Figure 2, a kind of built-up magnet, be equal thickness, flat object, comprise magnetic body layer 1, magnet upper surface composite bed 2, magnet lower surface composite bed 3, magnetic body layer comprise upper side 11 and downside 12, and the upper side 11 of magnetic body layer 1 is with magnet upper surface composite bed 2, the downside 12 of magnetic body layer 1 is with magnet lower surface composite bed 3, and magnetic body layer 1 and magnet upper surface composite bed 2, magnet lower surface composite bed 3 are structure as a whole.Described magnetic body layer 1 is an alnico alloy magnet layer.Described magnet upper and lower surface composite bed 2,3 is magnetic temp compensating material alloys magnet (iron-nickel alloy) layer.Prepare alnico alloy magnet powder and magnetic temp compensating material alloys magnet (iron-nickel alloy) powder respectively separately, batch mixing is wanted evenly.Adopt dry powder press compression moulding, earlier magnetic temp compensating material alloys magnet (iron-nickel alloy) powder (magnet lower surface composite bed 3) is added in the mould die, put into alnico alloy magnet powder (magnetic body layer 1) again, add magnetic temp compensating material alloys magnet (iron-nickel alloy) powder (magnet upper surface composite bed 2) again, pressurization compacting again forms moulded blank.Sintering again, moulded blank is put into the sintering boat, and, adopt normal sintering technology to carry out sintering with vacuum sintering furnace with diamond spar sand landfill, make magnetic body layer 1 and magnet upper surface composite bed 2, and magnetic body layer 1 becomes alloying with magnet lower surface composite bed 3 and is connected.Again through magnetic-field heat treatment, form then and have respective magnetic and can be able to vary with temperature and can keep stable built-up magnet.
Above-described embodiment, the utility model two kinds of embodiment more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection range of the present utility model.
Claims (4)
1. built-up magnet, be equal thickness, flat object, comprise magnetic body layer and magnet surface composite bed, the magnetic body layer comprises upper and lower two sides, the side or upper and lower two sides that it is characterized in that the magnetic body layer have the magnet surface composite bed, and magnetic body layer and magnet surface composite bed are structure as a whole.
2. a kind of built-up magnet according to claim 1 is characterized in that described magnetic body layer and magnet surface composite bed are that alloying is connected.
3. a kind of built-up magnet according to claim 1 and 2 is characterized in that described magnetic body layer is an alnico alloy magnet layer.
4. a kind of built-up magnet according to claim 1 and 2 is characterized in that described magnet surface composite bed is a magnetic temp compensating material alloys magnet layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202721930U CN201532823U (en) | 2009-11-13 | 2009-11-13 | Built-up magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202721930U CN201532823U (en) | 2009-11-13 | 2009-11-13 | Built-up magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201532823U true CN201532823U (en) | 2010-07-21 |
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ID=42528224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202721930U Expired - Fee Related CN201532823U (en) | 2009-11-13 | 2009-11-13 | Built-up magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201532823U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360677A (en) * | 2011-05-18 | 2012-02-22 | 吴江市天龙机械有限公司 | Receiver steel magnet |
| CN103208352A (en) * | 2013-03-15 | 2013-07-17 | 沈阳工业大学 | Novel power transformer with direct current magnetic bias suppression function on basis of magnetic temperature compensation |
| CN105895295A (en) * | 2016-06-03 | 2016-08-24 | 安吉司润磁性材料有限公司 | Composite functional magnetic strip and fabrication method thereof |
| CN108306429A (en) * | 2017-12-14 | 2018-07-20 | 天津邦特磁性材料有限公司 | A kind of motor temperature-compensating Nd-Fe-B permanent magnet |
-
2009
- 2009-11-13 CN CN2009202721930U patent/CN201532823U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360677A (en) * | 2011-05-18 | 2012-02-22 | 吴江市天龙机械有限公司 | Receiver steel magnet |
| CN102360677B (en) * | 2011-05-18 | 2013-05-22 | 吴江市天龙机械有限公司 | Receiver steel magnet |
| CN103208352A (en) * | 2013-03-15 | 2013-07-17 | 沈阳工业大学 | Novel power transformer with direct current magnetic bias suppression function on basis of magnetic temperature compensation |
| CN105895295A (en) * | 2016-06-03 | 2016-08-24 | 安吉司润磁性材料有限公司 | Composite functional magnetic strip and fabrication method thereof |
| CN108306429A (en) * | 2017-12-14 | 2018-07-20 | 天津邦特磁性材料有限公司 | A kind of motor temperature-compensating Nd-Fe-B permanent magnet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100721 Termination date: 20171113 |