CN114121474A - Method and device for manufacturing ferrite magnetic core for automobile electronics - Google Patents
Method and device for manufacturing ferrite magnetic core for automobile electronics Download PDFInfo
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- CN114121474A CN114121474A CN202111381950.XA CN202111381950A CN114121474A CN 114121474 A CN114121474 A CN 114121474A CN 202111381950 A CN202111381950 A CN 202111381950A CN 114121474 A CN114121474 A CN 114121474A
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- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 39
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 238000004806 packaging method and process Methods 0.000 claims abstract description 13
- 238000005245 sintering Methods 0.000 claims abstract description 13
- 239000011812 mixed powder Substances 0.000 claims abstract description 9
- 238000003825 pressing Methods 0.000 claims abstract description 9
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000005498 polishing Methods 0.000 claims abstract description 8
- 239000000654 additive Substances 0.000 claims abstract description 5
- 230000000996 additive effect Effects 0.000 claims abstract description 5
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 239000006260 foam Substances 0.000 claims abstract description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- GEYXPJBPASPPLI-UHFFFAOYSA-N manganese(III) oxide Inorganic materials O=[Mn]O[Mn]=O GEYXPJBPASPPLI-UHFFFAOYSA-N 0.000 claims abstract description 4
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 claims abstract description 4
- 238000005303 weighing Methods 0.000 claims abstract description 4
- 239000011787 zinc oxide Substances 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 230000001276 controlling effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000032258 transport Effects 0.000 description 11
- 238000007599 discharging Methods 0.000 description 4
- 241000282326 Felis catus Species 0.000 description 3
- 230000009193 crawling Effects 0.000 description 3
- 238000007792 addition Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The invention provides a method and a device for manufacturing a ferrite magnetic core for automobile electronics, wherein the method comprises the following steps: s1, batching: weighing raw materials comprising 68-72 wt% of ferric oxide, 20-25 wt% of manganic oxide, 5-10 wt% of zinc oxide and 1.5-2. wt% of additive according to the percentage of the components, putting the raw materials into a stirring device, and uniformly stirring to prepare mixed powder; s2, pressing: putting the mixed powder into a rotary press, pressing into blanks, and stacking the pressed blanks on a burning bearing plate; s3, sintering: conveying the burning bearing plate with the blank into a bell jar furnace for sintering; s4, grinding: inputting the sintered blanks one by one through a polishing, cleaning and drying integrated machine, and then polishing, cleaning and drying the blanks; s5, checking: and (3) detecting the size, appearance and electromagnetic performance of the processed ferrite core for automobile electronics. S6, packaging: and packaging the qualified finished product by a foam box and a packaging bag, and placing the finished product in a carton for waiting to be put in storage.
Description
Technical Field
The invention belongs to the technical field of magnetic cores, and relates to a method and a device for manufacturing a ferrite magnetic core for automobile electronics.
Background
With the continuous development of automobile electric control technology, the number of automobile electronic devices is greatly increased, the working frequency is gradually increased, and the power is gradually increased, so that the electromagnetic interference problem is increasingly prominent when the automobile working environment is filled with electromagnetic waves, the normal work of the electronic devices is influenced slightly, and corresponding electrical components are damaged seriously. The electromagnetic compatibility of automotive electronics is becoming more and more important, and therefore, it is necessary to design a method and a device for manufacturing a ferrite core for automotive electronics.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a method and a device for manufacturing a ferrite core for automobile electronics.
The purpose of the invention can be realized by the following technical scheme: the method for manufacturing the ferrite magnetic core for the automobile electronics and the device thereof are characterized in that the manufacturing method comprises the following steps:
s1, batching: weighing raw materials comprising 68-72 wt% of ferric oxide, 20-25 wt% of manganic oxide, 5-10 wt% of zinc oxide and 1.5-2. wt% of additive according to the percentage of the components, putting the raw materials into a stirring device, and uniformly stirring to prepare mixed powder;
s2, pressing: putting the mixed powder into a rotary press, pressing into blanks, stacking the pressed blanks on a burning bearing plate, and smearing zirconium powder liquid between two adjacent layers;
s3, sintering: conveying the burning bearing plate with the blank into a bell jar furnace for sintering, controlling the sintering temperature at 1320 +/-30 ℃, controlling the heat preservation time at 4-6h, filling a proper amount of nitrogen into a furnace body after the heat preservation is finished, cooling to 130 +/-5 ℃, and taking out the sintered blank after the furnace is opened;
s4, grinding: inputting the sintered blanks one by one through a polishing, cleaning and drying integrated machine, and then polishing, cleaning and drying the blanks;
s5, checking: and (3) detecting the size, appearance and electromagnetic performance of the processed ferrite core for automobile electronics.
S6, packaging: and packaging the qualified finished product by a foam box and a packaging bag, and placing the finished product in a carton for waiting to be put in storage.
The stirring device comprises a stirring barrel with a base, wherein a self-locking universal roller is installed on the base, a crawling ladder which is inclined is installed on the stirring barrel, a first chain wheel is installed on the upper portion of the crawling ladder, a second chain wheel is installed on the lower portion of the crawling ladder, the second chain wheel is further connected with a driving motor which drives the second chain wheel to rotate, a chain belt is arranged between the second chain wheel and the first chain wheel, a conveying table used for conveying raw materials is installed on the chain belt, a discharging pipe is installed at the bottom of the stirring barrel, and a regulating valve is arranged on the discharging pipe.
The number of the chain belts is two. And both are arranged parallel to each other.
The support is still installed at the agitator top, vertical rotation is provided with the rotation axis on the support, the rotation axis upper end links to each other with one can drive its pivoted power structure, the (mixing) shaft lower extreme links to each other with stirring paddle leaf, still be fixed with the ring gear on the support, the last gear of meshing mutually with the ring gear of installing of stirring paddle leaf, the linkage swing arm that is the L type has on the gear, stirring paddle leaf is last still to have the guide slot, the guide slot internal slipping is provided with reciprocating block, reciprocating block is last have with linkage swing arm matched with loop forming element, reciprocating block is last still to install and to push away the material blade.
The power structure comprises a power motor, a driving wheel, a driven wheel and a belt, wherein the power motor is installed on the support, an output shaft of the power motor is vertically arranged, the driving wheel is installed at the end part of the output shaft of the power motor, the driven wheel is installed at the upper end of a rotating shaft, and the belt is sleeved between the driving wheel and the driven wheel.
The transport table is further fixed with a track, a sliding seat is arranged on the track, a screw rod parallel to the track is rotatably arranged on the transport table, the end part of the screw rod is connected with a servo motor capable of driving the screw rod to rotate, a nut is connected to the screw rod through threads, a movable plate is arranged between the nut and the sliding seat, the end part of the movable plate is hinged with a filter screen frame, a magnet is further fixed on the filter screen frame through a rubber block, and an iron block matched with the magnet is further arranged on the movable plate.
Operation boxes are installed on the upper portion and the lower portion of the ladder stand.
Compared with the prior art, the manufacturing method and the device of the ferrite magnetic core for the automobile electronics have the advantages that:
according to the invention, reasonable raw materials and proportions are selected, operations such as batching, pressing, sintering, grinding, inspection, packaging and the like are performed, the stirring device is improved, and the uniformity of mixed powder is ensured under the common operation of the stirring blade and the material pushing blade, so that the obtained ferrite magnetic core for automobile electronics can be manufactured reliably and conveniently.
Drawings
FIG. 1 is a schematic representation of the steps of the method.
Fig. 2 is a schematic plan view of the present apparatus.
Fig. 3 is a schematic plan view of the arrangement of the transport table of the apparatus.
Fig. 4 is a schematic plan view of the present device at the movable plate.
Fig. 5 is a schematic perspective view of the device with portions broken away.
Fig. 6 is a schematic perspective view of the stirring blade in the present apparatus.
Fig. 7 is a schematic plan view of the power structure in the present apparatus.
In the figure, 1, a base; 2. a discharge pipe; 3. self-locking universal idler wheels; 4. a regulating valve; 5. a transport table; 6. a chain belt; 7. a chain wheel I; 8. a support; 9. an operation box; 10. climbing a ladder; 11. a second chain wheel; 12. a drive motor; 13. a slide base; 14. a track; 15. a movable plate; 16. a nut; 17. a screw rod; 18. a servo motor; 19. a filter screen frame; 20. a rubber block; 21. a magnet; 22. an iron block; 23. a pusher blade; 24. a stirring paddle; 24a, a guide groove; 25. a gear; 26. a swing arm is linked; 27. a ring gear; 28. an annular member; 29. a reciprocating block; 30. a stirring barrel; 31. a power motor; 32. a driven wheel; 33. a rotating shaft; 34. a belt; 35. a driving wheel.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Referring to fig. 1 to 7, the method for manufacturing the ferrite core for automotive electronics and the apparatus thereof comprises the following steps:
s1, batching: weighing raw materials comprising 68-72 wt% of ferric oxide, 20-25 wt% of manganic oxide, 5-10 wt% of zinc oxide and 1.5-2. wt% of additive according to the percentage of the components, putting the raw materials into a stirring device, and uniformly stirring to prepare mixed powder; in practice, the additive can be the existing raw material which is available in the existing market;
s2, pressing: putting the mixed powder into a rotary press, pressing into blanks, stacking the pressed blanks on a burning bearing plate, and smearing zirconium powder liquid between two adjacent layers;
s3, sintering: conveying the burning bearing plate with the blank into a bell jar furnace for sintering, controlling the sintering temperature at 1320 +/-30 ℃, controlling the heat preservation time at 4-6h, filling a proper amount of nitrogen into a furnace body after the heat preservation is finished, cooling to 130 +/-5 ℃, and taking out the sintered blank after the furnace is opened;
s4, grinding: inputting the sintered blanks one by one through a polishing, cleaning and drying integrated machine, and then polishing, cleaning and drying the blanks;
s5, checking: and (3) detecting the size, appearance and electromagnetic performance of the processed ferrite core for automobile electronics.
S6, packaging: and packaging the qualified finished product by a foam box and a packaging bag, and placing the finished product in a carton for waiting to be put in storage.
Agitating unit is including the agitator 30 that has base 1, install on the base 1 and be the universal gyro wheel 3 of locking-type, install the cat ladder 10 that is the slope on the agitator 30, sprocket 7 is installed on cat ladder 10 upper portion, sprocket two 11 is installed to cat ladder 10 lower part, sprocket two 11 still links to each other with a driving motor 12 that drives its pivoted, be provided with chain belt 6 between sprocket two 11 and the sprocket 7, install the transportation platform 5 that is used for carrying the raw materials on the chain belt 6, discharging pipe 2 is installed to agitator 30 bottom, the last regulation and control valve 4 that has of discharging pipe 2.
The number of the chain belts 6 is two. And both are arranged parallel to each other.
The top of the stirring barrel 30 is also provided with a support 8, the support 8 is vertically and rotatably provided with a rotating shaft 33, the upper end of the rotating shaft 33 is connected with a power structure capable of driving the rotating shaft to rotate, the lower end of the stirring shaft is connected with a stirring blade 24, the support 8 is also fixedly provided with a gear ring 27, the stirring blade 24 is provided with a gear 25 meshed with the gear ring 27, the gear 25 is provided with an L-shaped linkage swing arm 26, the stirring blade 24 is also provided with a guide groove 24a, the guide groove 24a is internally slid to be provided with a reciprocating block 29, the reciprocating block 29 is provided with an annular member 28 matched with the linkage swing arm 26, and the reciprocating block 29 is also provided with a material pushing blade 23; after the structure is adopted, the rotating shaft 33 drives the stirring blade 24 to stir the raw materials, meanwhile, the gear 25 is meshed with the gear ring 27, the reciprocating block 29 is enabled to reciprocate back and forth under the matching of the linkage swing arm 26 and the annular piece 28, the reciprocating block 29 drives the material pushing blade 23 to reciprocate, the material pushing blade 23 can assist in pushing various raw materials, and therefore the speed for uniformly stirring various raw materials can be accelerated, and the stirring effect is good.
The power structure comprises a power motor 31, a driving wheel 35, a driven wheel 32 and a belt 34, wherein the power motor 31 is installed on the support 8, an output shaft of the power motor 31 is vertically arranged, the driving wheel 35 is installed at the end part of the output shaft of the power motor 31, the driven wheel 32 is installed at the upper end of the rotating shaft 33, and the belt 34 is sleeved between the driving wheel 35 and the driven wheel 32.
A track 14 is further fixed on the transport table 5, a sliding seat 13 is arranged on the track 14, a screw rod 17 parallel to the track 14 is rotatably mounted on the transport table 5, the end of the screw rod 17 is connected with a servo motor 18 capable of driving the screw rod to rotate, a nut 16 is connected on the screw rod 17 in a threaded manner, a movable plate 15 is arranged between the nut 16 and the sliding seat 13, a filter screen frame 19 is hinged to the end of the movable plate 15, a magnet 21 is further fixed on the filter screen frame 19 through a rubber block 20, and an iron block 22 matched with the magnet 21 is further arranged on the movable plate 15; adopt this structure, drive 5 oscilaltions of transport table through chain belt 6, transport table 5 transports the raw materials bag to agitator 30 upper portion, drives lead screw 17 through servo motor 18 and rotates, and lead screw 17 cooperates with nut 16, makes fly leaf 15 transport the raw materials bag and transport agitator 30 top, and the convenience is reinforced to the raw materials, and the labour saving operation.
The upper part and the lower part of the ladder stand 10 are provided with an operation box 9.
The performance indexes of the product are as follows:
1. initial permeability μ i: 3300 + -25%;
2. curie temperature Tc: more than 230 ℃;
3. power loss: less than or equal to 300mW/cm3Detection conditions are as follows: 100KHz, 200mT, 25 plus or minus 3 ℃, N is 10T;
4. density of sintered body: not less than 4.8g/cm3；
5. Saturation magnetic flux density BS: more than or equal to 50025 +/-3 ℃.
The product meets the requirements of low-loss, high-BS and wide-temperature MnZn magnet 21 ferrite special for automobile electronics through reasonable proportioning and nitrogen protection sintering, has stronger competitiveness and has wide market prospect.
The above components are all standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experiments.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (7)
1. The method for manufacturing the ferrite magnetic core for the automobile electronics and the device thereof are characterized in that the manufacturing method comprises the following steps:
s1, batching: weighing raw materials comprising 68-72 wt% of ferric oxide, 20-25 wt% of manganic oxide, 5-10 wt% of zinc oxide and 1.5-2. wt% of additive according to the percentage of the components, putting the raw materials into a stirring device, and uniformly stirring to prepare mixed powder;
s2, pressing: putting the mixed powder into a rotary press, pressing into blanks, stacking the pressed blanks on a burning bearing plate, and smearing zirconium powder liquid between two adjacent layers;
s3, sintering: conveying the burning bearing plate with the blank into a bell jar furnace for sintering, controlling the sintering temperature at 1320 +/-30 ℃, controlling the heat preservation time at 4-6h, filling a proper amount of nitrogen into a furnace body after the heat preservation is finished, cooling to 130 +/-5 ℃, and taking out the sintered blank after the furnace is opened;
s4, grinding: inputting the sintered blanks one by one through a polishing, cleaning and drying integrated machine, and then polishing, cleaning and drying the blanks;
s5, checking: and (3) detecting the size, appearance and electromagnetic performance of the processed ferrite core for automobile electronics.
S6, packaging: and packaging the qualified finished product by a foam box and a packaging bag, and placing the finished product in a carton for waiting to be put in storage.
2. The manufacturing method and the device of the ferrite magnetic core for the automotive electronics according to claim 1 are characterized in that the stirring device comprises a stirring barrel (30) with a base (1), the base (1) is provided with a self-locking universal roller (3), the stirring barrel (30) is provided with an inclined ladder (10), a first chain wheel (7) is arranged on the upper portion of the ladder (10), a second chain wheel (11) is arranged on the lower portion of the ladder (10), the second chain wheel (11) is further connected with a driving motor (12) driving the second chain wheel to rotate, a chain belt (6) is arranged between the second chain wheel (11) and the first chain wheel (7), a transport table (5) used for conveying raw materials is arranged on the chain belt (6), a discharge pipe (2) is arranged at the bottom of the stirring barrel (30), and a regulating valve (4) is arranged on the discharge pipe (2).
3. The method and apparatus for manufacturing ferrite core for automotive electronics according to claim 2, wherein the number of the chain belts (6) is two. And both are arranged parallel to each other.
4. The method and apparatus for manufacturing ferrite cores for automotive electronics according to claim 2, the stirring device is characterized in that a support (8) is further mounted at the top of the stirring barrel (30), a rotating shaft (33) is vertically and rotatably arranged on the support (8), the upper end of the rotating shaft (33) is connected with a power structure capable of driving the rotating shaft to rotate, the lower end of the stirring shaft is connected with the stirring paddle (24), a gear ring (27) is further fixed on the support (8), a gear (25) meshed with the gear ring (27) is mounted on the stirring paddle (24), an L-shaped linkage swing arm (26) is arranged on the gear (25), a guide groove (24a) is further formed in the stirring paddle (24), a reciprocating block (29) is arranged in the guide groove (24a) in a sliding mode, a ring piece (28) matched with the linkage swing arm (26) is arranged on the reciprocating block (29), and a material pushing blade (23) is further mounted on the reciprocating block (29).
5. The method and the device for manufacturing the ferrite core for the automotive electronics according to claim 1 are characterized in that the power structure comprises a power motor (31), a driving wheel (35), a driven wheel (32) and a belt (34), wherein the power motor (31) is installed on the bracket (8), an output shaft of the power motor (31) is vertically arranged, the driving wheel (35) is installed at the end part of the output shaft of the power motor (31), the driven wheel (32) is installed at the upper end of the rotating shaft (33), and the belt (34) is sleeved between the driving wheel (35) and the driven wheel (32).
6. The manufacturing method and the device of the ferrite magnetic core for the automotive electronics according to claim 5 are characterized in that a rail (14) is further fixed on the transport table (5), a sliding seat (13) is arranged on the rail (14), a screw rod (17) parallel to the rail (14) is rotatably mounted on the transport table (5), the end of the screw rod (17) is connected with a servo motor (18) capable of driving the screw rod to rotate, a nut (16) is connected to the screw rod (17) in a threaded manner, a movable plate (15) is arranged between the nut (16) and the sliding seat (13), a filter screen frame (19) is hinged to the end of the movable plate (15), a magnet (21) is further fixed on the filter screen frame (19) through a rubber block (20), and an iron block (22) matched with the magnet (21) is further arranged on the movable plate (15).
7. A method and an apparatus for manufacturing a ferrite core for automotive electronics according to claim 6, characterized in that the operation box (9) is installed on both the upper and lower portions of the ladder (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111381950.XA CN114121474B (en) | 2021-11-19 | 2021-11-19 | Manufacturing method and device of ferrite magnetic core for automobile electronics |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111381950.XA CN114121474B (en) | 2021-11-19 | 2021-11-19 | Manufacturing method and device of ferrite magnetic core for automobile electronics |
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| CN114121474B CN114121474B (en) | 2024-06-14 |
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