CN203711835U - Vertical forming magnetic core die - Google Patents
Vertical forming magnetic core die Download PDFInfo
- Publication number
- CN203711835U CN203711835U CN201320884109.7U CN201320884109U CN203711835U CN 203711835 U CN203711835 U CN 203711835U CN 201320884109 U CN201320884109 U CN 201320884109U CN 203711835 U CN203711835 U CN 203711835U
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- CN
- China
- Prior art keywords
- female die
- magnetic core
- die
- vertical plates
- risers
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- Expired - Fee Related
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Abstract
The utility model provides a vertical forming magnetic core die which is composed of an upper punch, a lower punch and a female die. The upper punch, the lower punch and the female die are used in cooperation with one another. The female die is arranged between the upper punch and the lower punch and composed of a female die body and two vertical plates. The female die body is of a cylinder structure with the interior provided with a rectangular groove. The two vertical plates are perpendicularly fixed to the bottom of the rectangular groove of the female die body. The face of the side where the two vertical plates make contact with each other is of an arc shape, so that a core column inner hole is formed between the two vertical plates. The vertical plates in the female die and the female die body are integrally formed. Independent adjustment of a bottom material cavity of a blank is reduced in the compression forming process, operation is simple, and the requirement for the performance of a machine tool is not high; assembling is simple, the maintenance amount is lowered, the service life of the die is prolonged, the number of die connectors is reduced, and the appearance quality of products is improved indirectly.
Description
Technical field
The utility model relates to magnetic core and manufactures field, especially a kind of vertical forming magnetic core mould.
Background technology
Ferrite Material (ferrite) is made up of the several oxide using ferric ion as main cation composition, and presents ferrimagnetism or anti-ferromagnetic material.
Ferrite Material is that one has ferromagnetic metal oxide.With regard to electrical characteristics, ferritic resistivity is more much bigger than metal, alloy magnetic material, and also has higher dielectric properties.Ferritic magnetic property has higher magnetic conductivity while also showing high frequency.Thereby ferrite has become the broad-spectrum nonmetal magnetic material in high frequency light current field.Because the magnetic energy storing in ferrite unit volume is lower, full close also lower (conventionally only have pure iron 1/3～1/5) of the intensity of magnetization, thereby limited it in the low frequency forceful electric power of the magnetic energy density of having relatively high expectations and the application in high-power field.
Ferrite Material is a kind of nonmetal magnetic material, and it is for example, to be formed by di-iron trioxide and one or more other metal oxides (: nickel oxide, zinc oxide, manganese oxide, magnesia, barium monoxide, strontium oxide strontia etc.) preparation sintering.Its relative permeability can be up to several thousand, and resistivity is 1011 times of metal, and eddy-current loss is little, is suitable for making high-frequency electromagnetic device.Ferrite has Hard Magnetic, soft magnetism, square magnetic, gyromagnet and pressure magnetic five classes.Be once called as ferrite or magnetic ferrites, its production process and outer appearnce be pottery seemingly, thereby also referred to as ferrite.Ferrite is the composite oxides of iron and other one or more suitable metallic element, and character belongs to semiconductor, and usually used as magnetic medium application, between ferrite magnetic material and metal or alloy magnetic material, most important difference is electric conductivity.Conventionally the former resistivity is 102～108 Ω cm, and the latter only has 10-6～10-4 Ω cm.Wherein, to mainly contain MnZn system, NiZn system, MgZn be three major types to soft magnetic ferrite; If press application characteristic parametric classification, can be divided into power ferrite material, high frequency ferrite material, high resistivity material, very high frequency(VHF) soft magnetic ferrite (hexaplanar high frequency ferrite), high frequency high power ferrite material etc.
MnZn based ferrite has high initial permeability, higher saturation induction density, there is low loss at radio intermediate frequency or low-frequency range, it is the best Ferrite Material of the following band limits magnetic property of 1 megahertz, conventional MnZn based ferrite initial permeability μ i=400-20000, saturation induction density Bs=400-530mT.The resistivity of MgZn series ferrite material is higher, is mainly used in the deflection coil magnetic core of making kinescope or display tube.
NiZn based ferrite frequency of utilization 100kHz～100MHz, the highest 300MHz that uses, this class permeability is lower, and resistivity is very high, is generally 105～107 Ω cm.Therefore, high-frequency vortex loss is little, is the excellent material of the above high band magnetic property of 1MHz, the magnetic conductivity μ i=5-1500 of conventional NiZn based material, saturation induction density Bs=250-400mT.
In recent years, along with the application of Ferrite Material is more and more extensive, Ferrite Material has been applied to the manufacture of various inductors, transformer, wave filter and choke coil, and as hyundai electronics message areas such as computer and external equipment, business automation equipment, digital communication and artificial traffic equipment, internet, household electrical appliance, electromagnetic compatibility equipment, green illumination device, industrial automations, and automobile, aviation, military field.
EC, the type magnetic cores such as UR, because leg structure is special, when compressing, must adopt the method for vertical forming, mould is by upper punch, low punch and die composition, complicated structure, assemble also more complicated, when compacting according to powder service condition, the position of base plate in die needs to adjust separately, to reach the size of blank moulding, density requirements, the advantage of this kind of design is that the powder scope of application is wider, less demanding to powder apparent density, shortcoming is: assembling, maintenance more complicated, die life is low, when adjustment, require high to machine tool capability, base plate and die interface position blank produce burr, affect outward appearance.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of vertical forming magnetic core mould.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of vertical forming magnetic core mould, form and be used in conjunction with by upper punch, low punch and die, described die is arranged in the middle of upper punch and low punch, described die is made up of die main body and two risers, described die main body is the column structure that inside is provided with rectangular recess, the rectangular recess bottom vertical of described two risers and described die main body is fixed, and these two risers side plate face that contacts is arc, makes to form stem stem endoporus between two risers.
Preferably, above-mentioned vertical forming magnetic core mould, the height of described riser is suitable for reading lower than the rectangular recess of described die main body, forms the fixing loading chamber in magnetic core bottom.
Preferably, above-mentioned vertical forming magnetic core mould, described two risers the non-side that contacts designs for arc.
The utility model structure has following beneficial effect:
Above-mentioned vertical forming magnetic core mould, the riser in die and die main body are one-body molded, have reduced the independent adjustment in material chamber, blank bottom in pressing process, simple to operate, less demanding to machine tool capability; Assembling is simple, reduces maintenance capacity, extends die life; Reduce mould interface, indirectly promoted product appearance quality.
Brief description of the drawings
Fig. 1 is the structural representation of the die of vertical forming magnetic core mould described in the utility model.
In figure: 1-die main body 2-riser 3-stem stem endoporus
Detailed description of the invention
For further illustrating the utility model, now coordinate accompanying drawing to be described in detail:
As shown in Figure 1, a kind of vertical forming magnetic core mould, by upper punch, low punch and die form and are used in conjunction with, described die is arranged in the middle of upper punch and low punch, described die is made up of die main body 1 and two risers 2, described die main body 1 is the inner column structure that is provided with rectangular recess, described two risers 2 are fixed with the rectangular recess bottom vertical of described die main body 1, these two risers 2 side plate face that contacts is arc, make 2 of two risers form stem stem endoporus 3, described two risers 2 the non-side that contacts designs for arc, the height of described riser 2 is suitable for reading lower than the rectangular recess of described die main body 1, form the fixing loading chamber in magnetic core bottom.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a vertical forming magnetic core mould, form and be used in conjunction with by upper punch, low punch and die, described die is arranged in the middle of upper punch and low punch, it is characterized in that: described die is made up of die main body and two risers, described die main body is the column structure that inside is provided with rectangular recess, the rectangular recess bottom vertical of described two risers and described die main body is fixed, and these two risers side plate face that contacts is arc, makes to form stem stem endoporus between two risers.
2. vertical forming magnetic core mould according to claim 1, is characterized in that: the height of described riser is suitable for reading lower than the rectangular recess of described die main body, forms the fixing loading chamber in magnetic core bottom.
3. vertical forming magnetic core mould according to claim 1, is characterized in that: described two risers the non-side that contacts designs for arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320884109.7U CN203711835U (en) | 2013-12-25 | 2013-12-25 | Vertical forming magnetic core die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320884109.7U CN203711835U (en) | 2013-12-25 | 2013-12-25 | Vertical forming magnetic core die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203711835U true CN203711835U (en) | 2014-07-16 |
Family
ID=51151035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320884109.7U Expired - Fee Related CN203711835U (en) | 2013-12-25 | 2013-12-25 | Vertical forming magnetic core die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203711835U (en) |
-
2013
- 2013-12-25 CN CN201320884109.7U patent/CN203711835U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20140716 Termination date: 20141225 |
|
| EXPY | Termination of patent right or utility model |