CN109285686A - A kind of cutting core production method - Google Patents
A kind of cutting core production method Download PDFInfo
- Publication number
- CN109285686A CN109285686A CN201810961183.1A CN201810961183A CN109285686A CN 109285686 A CN109285686 A CN 109285686A CN 201810961183 A CN201810961183 A CN 201810961183A CN 109285686 A CN109285686 A CN 109285686A
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- China
- Prior art keywords
- magnetic core
- cutting
- product
- core
- carried out
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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
- 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
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of cutting core production methods, comprising the following steps: magnetic core powder is put into the molding die of ring structure by a., and molding die reserves magnetic core cutting quantity at the middle part of ring structure；B. high pressure is carried out to the magnetic core powder in molding die to suppress to form blank, be sintered the form forming magnetic core product to form annular to pressed blank later；C. coating is carried out to the surface of form forming magnetic core product；D. to carried out in the middle part of form forming magnetic core product cutting formed two magnetic core fissions；E. by two magnetic core fission splicing assemblings.The present invention is intended to provide a kind of cutting core production method for guaranteeing properties of product.
Description
Technical field
The invention belongs to core production field more particularly to a kind of cutting core production methods.
Background technique
With economic development and improvement of living standard, demand of the people to the electrical type consumer goods is more and more, and right
Product quality require it is higher and higher, this just make the metal magnetic powder core as electronic product important component face great market space and
Technological challenge.However, metal magnetic powder core is often attended to one thing and lose sight of another in terms of multiple characteristic requirements by being limited by technique, it is difficult
It takes into account；On the other hand, increasing with cost of labor, the headache that metal magnetic powder core need to manually be winding into each device producer are asked
Topic.To solve this problem, device producer mostly uses assembling magnetic core product, such as present market popularity E type, various squares and cylinder
Magnetic core is assembled, mostly one-pass molding, such process or since shape of product is limited, wedge angle can generate answer at the time of molding
Power, thus be not available high pressure molding cause performance to decline, or due to splicing use when GAP be not easily assembled excessively.Existing skill
Magnetic core in art is seperated, generallys use toroidal cores molded product and cuts, though this method can guarantee in pressing process
Briquetting pressure, but due to using circular ring shape to cut, there is cutting abrasion and caused by splicing wedge angle defect and cause to splice
After can not complete combination be circular ring shape, as shown in Fig. 3, what integral device performance was subject to is affected.
Summary of the invention
The present invention is to provide a kind of cutting magnetic core for guaranteeing properties of product to overcome above-mentioned deficiency in the prior art
Production method.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of cutting core production method, comprising the following steps:
A. magnetic core powder is put into the molding die of ring structure, molding die reserves magnetic core cutting at the middle part of ring structure
Amount；
B. high pressure is carried out to the magnetic core powder in molding die to suppress to form blank, later pressed blank is sintered to form ring
The form forming magnetic core product of shape；
C. coating is carried out to the surface of form forming magnetic core product；
D. to carried out in the middle part of form forming magnetic core product cutting formed two magnetic core fissions；
E. by two magnetic core fission splicing assemblings.
Before being suppressed, cutting quantity is reserved for molded product, in high pressure briquetting process, since there is no points for product
Angle, it is possible to be suppressed with the same pressure of circular ring shape.Cut at reserved cutting quantity after molding, spliced finished goods according to
So be complete ring structure, there is no as cutting abrasion and caused by splicing wedge angle defect, advantageously ensure that the property of product
Energy.
Preferably, reserving the practical cutting quantity that magnetic core cutting quantity is more than or equal in step d in step a, in molding die.
When being cut, circular arc shaped position of the cut place far from magnetic core, the magnetic core fission after cutting is still able to maintain complete semicircle
Circular arc forms complete annulus after being conducive to splicing, guarantees the overall permanence of product.
Preferably, when the practical cutting quantity of form forming magnetic core product is equal to reserved magnetic core cutting quantity, forming two in step d
A semiorbicular magnetic core is seperated；When the practical cutting quantity of form forming magnetic core product is less than reserved magnetic core cutting quantity, two U-shapeds are formed
Magnetic core is seperated.When practical cutting quantity is equal to reserved magnetic core cutting quantity, two semiorbicular magnetic core fissions are spliced into a complete circle
Ring, and when practical cutting quantity is less than reserved magnetic core cutting quantity, the magnetic core for producing U-shaped is seperated, and carrying out the splicing of dual U-shaped magnetic core makes
With to facilitate carry out coiling.
Preferably, grinding steps are added between step d and step e: to the section of two magnetic core fissions after cutting
It is ground.Section after cutting is ground, the finish of section can be improved, reduces the seperated spliced gap of magnetic core,
Improve cooperation tightness.
Preferably, the section alignment of two magnetic core fissions is carried out splicing assembling in step e.The section of magnetic core fission
Alignment forms a complete annular structure, further increases properties of product.
The beneficial effects of the present invention are: high pressure can be born when (1) formed product, to guarantee properties of product；(2) may be used
It is spliced into complete circle or is spliced into dual U-shaped magnetic core, product is made not only to be easy coiling but also guarantee characteristic.
Detailed description of the invention
Fig. 1 is the process schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the process schematic diagram of the embodiment of the present invention 2；
Fig. 3 is the process schematic diagram of the prior art.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
Embodiment 1:
In embodiment as shown in Figure 1, a kind of cutting core production method, comprising the following steps:
A. magnetic core powder is put into the molding die of ring structure, ring structure includes two semicircular rings and connection two and half
The middle section of annulus, as shown in figure 1 shown in A condition, middle section is cut for after, so that molding die is in ring junction
Reserve magnetic core cutting quantity in the middle part of structure；
B. high pressure is carried out to the magnetic core powder in molding die to suppress to form blank, can be used in pressing process and toroidal cores
Same pressure is sintered the form forming magnetic core product to form annular to pressed blank later, and the conditions such as sintering temperature are see also circle
Toroidal core sintering；
C. coating is carried out to the surfaces of form forming magnetic core product, magnetic core has a good insulation performance after spraying, while coating for
Magnetic core is protected, and the magnetic core service life is conducive to extend；
D. to carried out in the middle part of form forming magnetic core product cutting formed two magnetic core fissions, as shown in figure 1 shown in B state, in the present embodiment,
The practical cutting quantity of form forming magnetic core product is equal to reserved magnetic core cutting quantity, after being cut by sand milling cutting or other techniques,
As shown in figure 1 shown in C-state, it is seperated to form two semiorbicular magnetic cores；
E. the section of two magnetic core fissions after cutting is ground；
F. splicing assembling will be carried out after the section alignment of two magnetic core fissions, as shown in figure 1 shown in D-state, forms a complete circle
The magnetic core of annular.
Embodiment 2:
In embodiment as shown in Figure 2, a kind of cutting core production method, comprising the following steps:
A. magnetic core powder is put into the molding die of ring structure, ring structure includes two semicircular rings and connection two and half
The middle section of annulus, as shown in A condition in Fig. 2, middle section is cut for after, so that molding die is in ring junction
Reserve magnetic core cutting quantity in the middle part of structure；
B. high pressure is carried out to the magnetic core powder in molding die to suppress to form blank, can be used in pressing process and toroidal cores
Same pressure is sintered the form forming magnetic core product to form annular to pressed blank later, and the conditions such as sintering temperature are see also circle
Toroidal core sintering；
C. coating is carried out to the surfaces of form forming magnetic core product, magnetic core has a good insulation performance after spraying, while coating for
Magnetic core is protected, and the magnetic core service life is conducive to extend；
D. to carried out in the middle part of form forming magnetic core product cutting formed two magnetic core fissions, as shown in B state in Fig. 2, in the present embodiment,
The practical cutting quantity of form forming magnetic core product is less than reserved magnetic core cutting quantity, after being cut by sand milling cutting or other techniques,
As shown in C-state in Fig. 2, the magnetic core for forming two U-shapeds is seperated；
E. the section of two magnetic core fissions after cutting is ground；
F. splicing assembling will be carried out after the section alignment of two magnetic core fissions, as shown in D-state in Fig. 2, forms a dual U-shaped
Magnetic core.
Claims (5)
1. a kind of cutting core production method, comprising the following steps:
A. magnetic core powder is put into the molding die of ring structure, molding die is reserved magnetic core at the middle part of ring structure and cut
The amount of cutting；
B. high pressure is carried out to the magnetic core powder in molding die to suppress to form blank, later pressed blank is sintered to be formed
The form forming magnetic core product of annular；
C. coating is carried out to the surface of form forming magnetic core product；
D. to carried out in the middle part of form forming magnetic core product cutting formed two magnetic core fissions；
E. by two magnetic core fission splicing assemblings.
2. a kind of cutting core production method according to claim 1, characterized in that in step a, reserved in molding die
Magnetic core cutting quantity is more than or equal to the practical cutting quantity in step d.
3. a kind of cutting core production method according to claim 1, characterized in that in step d, when form forming magnetic core product
When practical cutting quantity is equal to reserved magnetic core cutting quantity, it is seperated to form two semiorbicular magnetic cores；When actually cutting for form forming magnetic core product
When the amount of cutting is less than reserved magnetic core cutting quantity, the magnetic core for forming two U-shapeds is seperated.
4. a kind of cutting core production method according to claim 1 or 2 or 3, characterized in that step d and step e it
Between grinding steps are added: the section of two magnetic core fissions after cutting is ground.
5. a kind of cutting core production method according to claim 1 or 2 or 3, characterized in that in step e, by two magnetic
Splicing assembling is carried out after the section alignment of core fission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810961183.1A CN109285686B (en) | 2018-08-22 | 2018-08-22 | Production method for cutting magnetic core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810961183.1A CN109285686B (en) | 2018-08-22 | 2018-08-22 | Production method for cutting magnetic core |
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| Publication Number | Publication Date |
|---|---|
| CN109285686A true CN109285686A (en) | 2019-01-29 |
| CN109285686B CN109285686B (en) | 2021-01-19 |
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| CN201810961183.1A Active CN109285686B (en) | 2018-08-22 | 2018-08-22 | Production method for cutting magnetic core |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112117116A (en) * | 2020-10-12 | 2020-12-22 | 深圳市新核瑞科技有限公司 | Method for manufacturing iron-based or nickel-based annular magnetic core |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112117116A (en) * | 2020-10-12 | 2020-12-22 | 深圳市新核瑞科技有限公司 | Method for manufacturing iron-based or nickel-based annular magnetic core |
| CN112117116B (en) * | 2020-10-12 | 2022-03-08 | 深圳市新核瑞科技有限公司 | Method for manufacturing iron-based or nickel-based annular magnetic core |
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| Publication number | Publication date |
|---|---|
| CN109285686B (en) | 2021-01-19 |
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