CN114121472A - Sintering process of ferrite magnetic core - Google Patents
Sintering process of ferrite magnetic core Download PDFInfo
- Publication number
- CN114121472A CN114121472A CN202111346641.9A CN202111346641A CN114121472A CN 114121472 A CN114121472 A CN 114121472A CN 202111346641 A CN202111346641 A CN 202111346641A CN 114121472 A CN114121472 A CN 114121472A
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- sintering
- plate
- core blank
- placing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005245 sintering Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 22
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 22
- 230000008569 process Effects 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 38
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 238000000576 coating method Methods 0.000 claims abstract description 26
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000010030 laminating Methods 0.000 claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 238000012805 post-processing Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000007761 roller coating Methods 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000003475 lamination Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 7
- 238000007599 discharging Methods 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 7
- 210000000078 claw Anatomy 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process 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
- 239000000758 substrate Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention provides a sintering process of a ferrite core, which is characterized by comprising the following steps of: s1, layered placement: placing the burning bearing plate with the layer of magnetic core blank at a laminating rolling coating device, uniformly coating zirconium powder liquid on the surface of the magnetic core blank through the laminating rolling coating device, placing a layer of magnetic core blank, coating again, and repeating the steps until the magnetic core blank with the required number of layers is obtained on the burning bearing plate; s2, transferring: sequentially putting the burning bearing plates of the step S1 into a material vehicle; s3, sintering: sintering the magnetic core blank through a sintering furnace; s4, post-processing: and taking out the sintered ferrite core, and wiping off the zirconium powder on the surface of the ferrite core.
Description
Technical Field
The invention belongs to the technical field of magnetic cores, relates to a sintering process, and particularly relates to a sintering process of a ferrite magnetic core.
Background
The ferrite magnetic core is a high-frequency magnetic conductive material, is mainly used as a high-frequency transformer, a high-frequency magnetic ring and the like, increases the magnetic permeability, improves the quality factor of an inductor and is used in the transformer.
Through search, for example, chinese patent literature discloses a sintering method of a magnetic core [ application number: 201110249648.9, respectively; publication No.: CN102376444B ]. The method for sintering the magnetic core adopts a nitrogen kiln to sinter the magnetic core, and is characterized in that when the magnetic core is sintered, the average heating rate between 100 and 900 ℃ is 20 to 50 ℃ per hour, the average heating rate from 900 ℃ to the sintering temperature is 150 ℃ per hour, the sintering heat preservation time is 5 to 8 hours, and the temperature is reduced to the room temperature by adopting a forced air cooling and water cooling mode; the time for the magnetic core to discharge the water in the magnetic core on the outer track of the nitrogen kiln is 4-6 hours; the size of the kiln of the nitrogen kiln is lengthened by 2-5 meters, and a drainage device with the length of 3-8 meters is arranged on an outer rail of the nitrogen kiln.
The sintering method disclosed in this patent is too simple to realize mass production, and therefore, it is necessary to design a sintering process for ferrite cores.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a sintering process of a ferrite core.
The purpose of the invention can be realized by the following technical scheme: a sintering process of a ferrite core is characterized by comprising the following steps:
s1, layered placement: placing the burning bearing plate with the layer of magnetic core blank at a laminating rolling coating device, uniformly coating zirconium powder liquid on the surface of the magnetic core blank through the laminating rolling coating device, placing a layer of magnetic core blank, coating again, and repeating the steps until the magnetic core blank with the required number of layers is obtained on the burning bearing plate;
s2, transferring: sequentially putting the burning bearing plates of the step S1 into a material vehicle;
s3, sintering: sintering the magnetic core blank through a sintering furnace;
s4, post-processing: and taking out the sintered ferrite core, and wiping off the zirconium powder on the surface of the ferrite core.
And each layer of magnetic core blank on the burning bearing plate is distributed in an array.
The weight part ratio of zirconium powder to water in the zirconium powder liquid is 1: 3.
the sintering furnace comprises four areas, wherein the heating area I is as follows: slowly heating the magnetic core blank to 360 +/-30 ℃ from normal temperature, and controlling the heating time to be 5.5 h; a second heating area: heating the magnetic core blank from 360 +/-30 ℃ to 1370 +/-40 ℃, and controlling the heating time to be 8 h; a heat preservation area: keeping the temperature of the magnetic core blank at 1340 +/-40 ℃ for 6 h; cooling the temperature zone: the cooling time was controlled at 11 h.
The laminated roll coating device comprises a base, a placing table is fixed on the base, a first rail is horizontally fixed on the base, a first sliding seat is arranged on the first rail, a positioning table is fixed on the first sliding seat, the first sliding seat is also connected with a first air cylinder capable of driving the first sliding seat to move back and forth, a first support is also fixed on the base, a first push rod motor is fixed on the first support, a push rod of the first push rod motor is vertically downward, the end part of the push rod motor is connected with a lifting plate, a moving frame is arranged on the lifting plate and is connected with a moving structure capable of driving the first sliding seat to move back and forth, a second air cylinder is arranged at one end of the moving frame, a piston rod of the second air cylinder is vertically downward, the end part of the piston rod of the second air cylinder is connected with a base plate, an electromagnet is arranged on the base plate, a material storage box with an opening at the upper part is arranged at the other end of the moving frame, the lower part of the material storage box is communicated with a material discharging pipe through a connecting pipe, and the discharging pipe is horizontally arranged, the lateral part of the discharge pipe is provided with a plurality of discharge holes, the connecting pipe is also provided with a one-way valve and an elastic regulation and control bag, the other end of the moving frame is further provided with a horizontally rotating roll coating shaft, one end of the roll coating shaft is connected with a main linkage wheel, the main linkage wheel is abutted against the lifting plate, the other end of the roll coating shaft is connected with a slave linkage wheel through a one-way bearing, the slave linkage wheel can be abutted against the regulation and control bag, and the slave linkage wheel is further provided with a notch part.
The moving structure comprises a first guide rail, a first sliding block, a first screw rod, a first nut and a first servo motor, the first guide rail is horizontally fixed on the lifting plate, the first sliding block is arranged on the first guide rail, the first screw rod is horizontally and rotatably arranged on the lifting plate and is parallel to the first guide rail, one end part of the first screw rod is connected with the first servo motor, the first nut is in threaded connection with the first screw rod, and the moving frame is arranged between the first nut and the first sliding block.
Placing a burning bearing plate with a layer of magnetic core blank on a positioning table, driving a sliding seat I to move along a track I through an air cylinder, moving the positioning table to a stacking position, placing the magnetic core blank on the placing table, driving a lifting plate to move up and down through a push rod motor, driving an electromagnet to move up and down through an air cylinder II, sucking the magnetic core of the placing table by the electromagnet, when a moving frame moves to the positioning table step by step, enabling a main linkage wheel to abut against the lifting plate, enabling a roller coating shaft to rotate through the driving of the main linkage wheel, enabling a secondary linkage wheel to rotate through the roller coating shaft under the matching of a gap part of the secondary linkage wheel, enabling a regulating and controlling bag to deform repeatedly to enable a connecting pipe to be communicated repeatedly, conveying zirconium powder liquid in a storage box to a discharging pipe and dropping on the roller coating shaft from the discharging pipe, coating the zirconium powder liquid on the surface of the magnetic core blank through the roller coating shaft, and continuing to move along with the moving frame, the electromagnet puts another layer of magnetic core blank on the burning board, and when the movable frame resets, because of the effect of one-way bearing, can not rotate from the interlocking wheel this moment, flattens the regulation and control bag from the interlocking wheel, and the discharging pipe can not output zirconium powder liquid promptly, excellent in use effect.
The sintering furnace comprises a frame, a furnace body and a transmission track are mounted on the frame, a feeding mechanism is arranged on the frame and comprises a movable table and a cylinder III, the movable table is connected to the frame in a sliding manner and is connected with a driving structure capable of driving the movable table to move back and forth, the lower portion of the movable table is connected with a vertical plate, a guide rail II is vertically fixed on the vertical plate, a slide block II is arranged on the guide rail II, a lead screw II is vertically and rotatably mounted on the vertical plate, the end portion of the lead screw II is connected with a servo motor II, a nut II is in threaded connection with the lead screw II, the nut II is connected with the slide block II through a connecting piece, a positioning frame for positioning a material vehicle is mounted on the connecting piece, two L-shaped iron limiting seats are arranged on the positioning frame, a magnet matched with the iron limiting seats is mounted on the material vehicle through a rubber block, a placing frame is further arranged on the material vehicle, and a plurality of placing plates for storing blanks are arranged on the placing frame, the third cylinder is fixed on the upper portion of the movable table through the second support, a piston rod of the third cylinder is horizontally arranged, a third cylinder gripper is fixed at the end of a piston rod of the third cylinder, and a seat is further mounted on the movable table.
The material trolley is pushed onto a movable table, an iron limiting seat on a positioning frame is matched with a magnet to limit the material trolley, the movable table is driven to move horizontally through a driving structure, a screw rod II is driven to rotate by a servo motor II, a nut II and a sliding block II drive the positioning frame to move up and down, and the positioning frame drives the material trolley to move up and down; the cylinder three drives the cylinder three grab handle to drive the burning bearing plate on the placing plate to move towards the transmission track, so that the operator can conveniently regulate and control the seat, and the feeding is convenient.
The feeding mechanism further comprises an electric clamping jaw, a first L-shaped auxiliary plate and a second L-shaped auxiliary plate, the electric clamping jaw is fixed on the second support through a mounting rod and is provided with two parallel claws, the first L-shaped auxiliary plate is mounted on one claw, the second L-shaped auxiliary plate is mounted on the other claw, and the first L-shaped auxiliary plate and the second L-shaped auxiliary plate are both provided with inclined guiding parts.
The placing plate is provided with two groups of rollers, the placing plate is further provided with a guide sleeve, a guide rod is vertically arranged in the guide sleeve, a friction plate is arranged at the upper end of the guide rod, a linkage limiting block is arranged at the lower end of the guide rod, the guide rod is further sleeved with a spring, the upper end of the spring abuts against the friction plate, and the lower end of the spring abuts against the placing plate.
And the first L-shaped auxiliary plate is also provided with an extrusion block matched with the linkage limiting block through a positioning rod, and the extrusion block is triangular.
Through the cooperation of the extrusion block and the linkage limiting block, the burning board is moved between the first L-shaped auxiliary board and the second L-shaped auxiliary board by utilizing the roller under the pushing action of the three grippers of the air cylinder, the electric clamping jaw controls the first L-shaped auxiliary board and the second L-shaped auxiliary board to be opened, and the burning board stably falls on the conveying track from the guiding part between the first L-shaped auxiliary board and the second L-shaped auxiliary board.
The driving structure comprises a second rail, a second sliding seat, a rack, a gear and a power motor, wherein the second rail is horizontally fixed on the rack, the second sliding seat is arranged on the second rail, the rack is horizontally fixed on the rack, the rack is parallel to the second rail, the power motor is fixed on the second sliding seat, an output shaft of the power motor is horizontally arranged, the gear is fixed at the end part of the output shaft of the power motor, the gear is meshed with the rack, and the movable table is fixed on the second sliding seat.
The power motor works to drive the gear to rotate, the gear is meshed with the rack to drive the sliding seat II to horizontally move on the rail II, and the sliding seat II drives the movable table to horizontally move.
And a fan used for blowing and sweeping is installed on the second support, an air outlet of the fan inclines downwards, and a transparent blocking plate is further installed on the second support through a flexible bendable rod.
The surface of the magnetic core on the transmission track is swept by the fan, surface impurities are removed, and the barrier plate prevents dust from diffusing to an operator.
Compared with the prior art, the sintering process of the ferrite core has the advantages that:
according to the invention, through operations such as stacking, transferring, sintering, post-treatment and the like, and special design or improvement of the stacking roller coating device and the sintering furnace, automatic operation can be realized, so that the stability of the whole process can be ensured, and unnecessary process time is reduced.
Drawings
FIG. 1 is a diagram of the process steps of the present invention;
FIG. 2 is a schematic plan view of a layered roller coating apparatus;
FIG. 3 is a schematic plan view of a moving structure in the laminating roller coating apparatus;
FIG. 4 is a schematic plan view of a portion of the laminated roll-on coating apparatus shown removed;
FIG. 5 is a schematic plan view of the slave linkage wheel in the laminating roller coating apparatus;
FIG. 6 is a schematic plan view of a sintering furnace;
FIG. 7 is a schematic plan view of a charging mechanism in the sintering furnace;
FIG. 8 is a schematic plan view of a vertical plate in the sintering furnace;
FIG. 9 is a schematic plan view of an electric chuck jaw in the sintering furnace;
FIG. 10 is a schematic plan view of a material cart in a sintering furnace;
FIG. 11 is a schematic plan view of a blower in the sintering furnace.
In the figure, 1, a base; 2. a positioning table; 3. a first sliding seat; 4. a first track; 5. a first cylinder; 6. a first bracket; 7. a lifting plate; 8. a push rod motor; 9. a material storage box; 10. a movable frame; 11. a second air cylinder; 12. a substrate; 13. an electromagnet; 14. a discharge pipe; 15. roll coating the shaft; 16. a placing table; 17. a first guide rail; 18. a first sliding block; 19. a first nut; 20. a first screw rod; 21. a first servo motor; 22. a main linkage wheel; 23. a one-way valve; 24. a connecting pipe; 25. a regulatory vesicle; 26. a one-way bearing; 27. a slave linkage wheel; 28. a notch portion; 31. a frame; 32. a second bracket; 33. a third air cylinder; 34. a furnace body; 35. a transfer track; 36. a movable table; 37. a power motor; 38. a gear; 39. a second sliding seat; 40. a rack; 41. a second track; 42. a first L-shaped auxiliary plate; 43. a second L-shaped auxiliary plate; 44. an iron limiting seat; 45. a positioning frame; 46. a seat; 47. a connecting member; 48. a vertical plate; 49. a cylinder three-gripper; 50. a second nut; 51. a second screw rod; 52. a servo motor II; 53. a second guide rail; 54. a second sliding block; 55. mounting a rod; 56. an electric jaw; 57. extruding the block; 58. positioning a rod; 59. a magnet; 60. placing the frame; 61. a guide bar; 62. a guide sleeve; 63. placing the plate; 64. a roller; 65. a spring; 66. a friction plate; 67. a linkage limiting block; 68. a material vehicle; 69. a fan; 70. a barrier plate.
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.
As shown in fig. 1 to 11, the sintering process of the ferrite core comprises the following steps:
s1, layered placement: placing the burning bearing plate with the layer of magnetic core blank at a laminating rolling coating device, uniformly coating zirconium powder liquid on the surface of the magnetic core blank through the laminating rolling coating device, placing a layer of magnetic core blank, coating again, and repeating the steps until the magnetic core blank with the required number of layers is obtained on the burning bearing plate;
s2, transferring: sequentially putting the burning bearing plates of the step S1 on the material trolley 68;
s3, sintering: sintering the magnetic core blank through a sintering furnace;
s4, post-processing: and taking out the sintered ferrite core, and wiping off the zirconium powder on the surface of the ferrite core.
Each layer of magnetic core blank on the burning plate is distributed in an array.
The weight part ratio of zirconium powder to water in the zirconium powder liquid is 1: 3.
the sintering furnace comprises four areas, wherein the heating area I is as follows: slowly heating the magnetic core blank to 360 +/-30 ℃ from normal temperature, and controlling the heating time to be 5.5 h; a second heating area: heating the magnetic core blank from 360 +/-30 ℃ to 1370 +/-40 ℃, and controlling the heating time to be 8 h; a heat preservation area: keeping the temperature of the magnetic core blank at 1340 +/-40 ℃ for 6 h; cooling the temperature zone: the cooling time was controlled at 11 h.
The laminated roll coating device comprises a base 1, a placing table 16 is fixed on the base 1, a first rail 4 is horizontally fixed on the base 1, a first sliding seat 3 is arranged on the first rail 4, a positioning table 2 is fixed on the first sliding seat 3, the first sliding seat 3 is also connected with a first air cylinder 5 capable of driving the first sliding seat to move back and forth, a first support 6 is also fixed on the base 1, a push rod motor 8 is fixed on the first support 6, a push rod of the push rod motor 8 faces downwards vertically, the end part of the push rod motor 8 is connected with a lifting plate 7, a movable frame 10 is arranged on the lifting plate 7, the movable frame 10 is connected with a movable structure capable of driving the movable frame to move back and forth, a second air cylinder 11 is arranged at one end of the movable frame 10, a piston rod of the second air cylinder 11 faces downwards vertically, the end part of the piston rod of the second air cylinder 11 is connected with a base plate 12, an electromagnet 13 is arranged on the base plate 12, a material storage box 9 with an opening at the upper part is arranged at the other end of the movable frame 10, the lower portion of the material storage box 9 is communicated with a material discharge pipe 14 through a connecting pipe 24, the material discharge pipe 14 is horizontally arranged, a plurality of material discharge holes are formed in the side portion of the material discharge pipe 14, a one-way valve 23 and an elastic regulation and control bag 25 are further arranged on the connecting pipe 24, a horizontally rotating roller coating shaft 15 is further installed at the other end of the moving frame 10, one end of the roller coating shaft 15 is connected with a main linkage wheel 22, the main linkage wheel 22 abuts against the lifting plate 7, the other end of the roller coating shaft 15 is connected with a slave linkage wheel 27 through a one-way bearing 26, the slave linkage wheel 27 can abut against the regulation and control bag 25, and a notch portion 28 is further formed in the slave linkage wheel 27.
The moving structure comprises a first guide rail 17, a first sliding block 18, a first screw rod 20, a first nut 19 and a first servo motor 21, wherein the first guide rail 17 is horizontally fixed on the lifting plate 7, the first sliding block 18 is arranged on the first guide rail 17, the first screw rod 20 is horizontally and rotatably arranged on the lifting plate 7, the first screw rod 20 is parallel to the first guide rail 17, the end part of the first screw rod 20 is connected with the first servo motor 21, the first nut 19 is in threaded connection with the first screw rod 20, and the moving frame 10 is arranged between the first nut 19 and the first sliding block 18.
Placing a burning bearing plate with a layer of magnetic core blank on a positioning table 2, driving a sliding seat I3 to move along a track I4 through an air cylinder I5, moving the positioning table 2 to a stacking position, placing the magnetic core blank on a placing table 16, driving a lifting plate 7 to move up and down through a push rod motor 8, driving an electromagnet 13 to move up and down through an air cylinder II 11, sucking the magnetic core of the placing table 16 by the electromagnet 13, when a moving frame 10 gradually moves to the positioning table 2, enabling a main linkage wheel 22 to abut against the lifting plate 7, enabling the main linkage wheel 22 to drive a roller coating shaft 15 to rotate, enabling the roller coating shaft 15 to rotate through the action of a one-way bearing 26, enabling a material storage bag 25 to repeatedly deform under the matching of a notch part 28 of a slave linkage wheel 27 to enable a connecting pipe 24 to be repeatedly communicated, conveying zirconium powder liquid in a material storage tank 9 to a material discharging pipe 14, and dropping on the roller coating shaft 15 through the material discharging pipe 14, the zirconium powder liquid is coated on the surface of the magnetic core blank through the roll coating shaft 15, the electromagnet 13 puts another layer of magnetic core blank on the burning bearing plate along with the continuous movement of the moving frame 10, and when the moving frame 10 resets, the electromagnet cannot rotate from the linkage wheel 27 under the action of the one-way bearing 26, the regulating and controlling bag 25 is flattened from the linkage wheel 27, namely the discharge pipe 14 cannot output the zirconium powder liquid, and the using effect is good.
The sintering furnace comprises a frame 31, a furnace body 34 and a transmission track 35 are installed on the frame 31, a feeding mechanism is arranged on the frame 31 and comprises a movable table 36 and a cylinder three 33, the movable table 36 is connected to the frame 31 in a sliding manner, the movable table 36 is connected with a driving structure capable of driving the movable table to move back and forth, the lower part of the movable table 36 is connected with a vertical plate 48, a guide rail two 53 is vertically fixed on the vertical plate 48, a slide block two 54 is arranged on the guide rail two 53, a screw rod two 51 is also vertically and rotatably installed on the vertical plate 48, the end part of the screw rod two 51 is connected with a servo motor two 52, a nut two 50 is in threaded connection with the screw rod two 51, the nut two 50 is connected with the slide block two 54 through a connecting piece 47, a positioning frame 45 for positioning a material vehicle 68 is installed on the connecting piece 47, two L-shaped iron limiting seats 44 are arranged on the positioning frame 45, a magnet 59 matched with the iron limiting seats 44 is installed on the material vehicle 68 through a rubber block, the material trolley 68 is further provided with a placing frame 60, the placing frame 60 is provided with a plurality of placing plates 63 for storing blanks, the third air cylinder 33 is fixed to the upper portion of the movable table 36 through the second support 32, a piston rod of the third air cylinder 33 is horizontally arranged, a third air cylinder gripper 49 is fixed to the end portion of the piston rod of the third air cylinder 33, and the movable table 36 is further provided with a seat 46.
The feeding mechanism further comprises an electric clamping jaw 56, a first L-shaped auxiliary plate 42 and a second L-shaped auxiliary plate 43, the electric clamping jaw 56 is fixed on the second bracket 32 through a mounting rod 55, the electric clamping jaw 56 is provided with two parallel hand claws, the first L-shaped auxiliary plate 42 is mounted on one hand claw, the second L-shaped auxiliary plate 43 is mounted on the other hand claw, and inclined guiding parts are arranged on the first L-shaped auxiliary plate 42 and the second L-shaped auxiliary plate 43.
Two groups of rollers 64 are arranged on the placing plate 63, a guide sleeve 62 is further arranged on the placing plate 63, a guide rod 61 is vertically arranged in the guide sleeve 62, a friction plate 66 is arranged at the upper end of the guide rod 61, a linkage limiting block 67 is arranged at the lower end of the guide rod 61, a spring 65 is further sleeved on the guide rod 61, the upper end of the spring 65 abuts against the friction plate 66, and the lower end of the spring 65 abuts against the placing plate 63.
The first L-shaped auxiliary plate 42 is further provided with a pressing block 57 which is matched with the linkage limiting block 67 through a positioning rod 58, and the pressing block 57 is triangular.
Through the cooperation of the extrusion block 57 and the linkage limiting block 67, the burning board is moved between the first L-shaped auxiliary plate 42 and the second L-shaped auxiliary plate 43 by the roller 64 under the pushing of the air cylinder three-grip 49, the electric clamping jaw 56 controls the first L-shaped auxiliary plate 42 and the second L-shaped auxiliary plate 43 to be opened, and the burning board falls on the conveying track 35 smoothly from the guiding part between the first L-shaped auxiliary plate 42 and the second L-shaped auxiliary plate 43.
The driving structure comprises a second rail electromagnet 13, a second sliding seat 39, a rack 40, a gear 38 and a power motor 37, the second rail electromagnet 13 is horizontally fixed on the rack 31, the second sliding seat 39 is arranged on the second rail electromagnet 13, the rack 40 is horizontally fixed on the rack 31, the rack 40 is parallel to the second rail electromagnet 13, the power motor 37 is fixed on the second sliding seat 39, an output shaft of the power motor 37 is horizontally arranged, the gear 38 is fixed at the end part of the output shaft of the power motor 37, the gear 38 is meshed with the rack 40, and the movable table 36 is fixed on the second sliding seat 39.
The power motor 37 works to drive the gear 38 to rotate, the gear 38 is meshed with the rack 40 to drive the second sliding seat 39 to horizontally move on the second rail electromagnet 13, and the second sliding seat 39 drives the movable table 36 to horizontally move.
A blower 69 for blowing is arranged on the second bracket 32, an air outlet of the blower 69 inclines downwards, and a transparent blocking plate 70 is arranged on the second bracket 32 through a flexible bendable rod.
The magnetic core is placed on the transmission rail 35 for a long time, and dust impurities fall on the surface of the magnetic core.
The surface of the magnetic core on the transmission rail 35 is purged by a fan 69 to remove surface impurities, and the blocking plate 70 blocks dust from diffusing to an operator.
The material trolley 68 is pushed onto the movable table 36, the iron limiting seat 44 on the positioning frame 45 is matched with the magnet 59 to limit the material trolley 68, the movable table 36 is driven to move horizontally through the driving structure, the second screw rod 51 is driven to rotate by the second servo motor 52, the second nut 50 and the second slider 54 drive the positioning frame 45 to move up and down, and the positioning frame 45 drives the material trolley 68 to move up and down; the cylinder three 33 drives the cylinder three-gripper 49 to drive the burning bearing plate on the placing plate 63 to move towards the transmission rail 35, so that the operator can conveniently regulate and control the seat 46, and the feeding is convenient.
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 (6)
1. A sintering process of a ferrite core is characterized by comprising the following steps:
s1, layered placement: placing the burning bearing plate with the layer of magnetic core blank at a laminating rolling coating device, uniformly coating zirconium powder liquid on the surface of the magnetic core blank through the laminating rolling coating device, placing a layer of magnetic core blank, coating again, and repeating the steps until the magnetic core blank with the required number of layers is obtained on the burning bearing plate;
s2, transferring: sequentially putting the burning bearing plates of the step S1 into a material vehicle;
s3, sintering: sintering the magnetic core blank through a sintering furnace;
s4, post-processing: and taking out the sintered ferrite core, and wiping off the zirconium powder on the surface of the ferrite core.
2. The process of claim 1, wherein each of the layers of core blanks on the setter plate are arranged in an array.
3. The sintering process of a ferrite core according to claim 1, wherein the weight part ratio of zirconium powder to water in the zirconium powder liquid is 1: 3.
4. the process of claim 1, wherein the sintering furnace comprises four zones, one heating zone: slowly heating the magnetic core blank to 360 +/-30 ℃ from normal temperature, and controlling the heating time to be 5.5 h; a second heating area: heating the magnetic core blank from 360 +/-30 ℃ to 1370 +/-40 ℃, and controlling the heating time to be 8 h; a heat preservation area: keeping the temperature of the magnetic core blank at 1340 +/-40 ℃ for 6 h; cooling the temperature zone: the cooling time was controlled at 11 h.
5. The sintering process of the ferrite core according to claim 1, wherein the lamination roll coating device comprises a base (1), a placing table (16) is fixed on the base (1), a first rail (4) is horizontally fixed on the base (1), a first sliding seat (3) is arranged on the first rail (4), a positioning table (2) is fixed on the first sliding seat (3), the first sliding seat (3) is further connected with a first cylinder (5) capable of driving the first sliding seat to move back and forth, a first support (6) is further fixed on the base (1), a first push rod motor (8) is fixed on the first support (6), a push rod of the first push rod motor (8) faces downwards vertically, the end part of the push rod of the first push rod motor (8) is connected with a lifting plate (7), a moving frame (10) is arranged on the lifting plate (7), the moving frame (10) is connected with a moving structure capable of driving the moving frame to move back and forth, a second cylinder (11) is arranged at one end of the moving frame (10), a piston rod of the second cylinder (11) is vertically downward, the end part of the piston rod of the second cylinder (11) is connected with a base plate (12), an electromagnet (13) is installed on the base plate (12), a material storage box (9) with an opening at the upper part is installed at the other end of the moving frame (10), the lower part of the material storage box (9) is communicated with a material discharge pipe (14) through a connecting pipe (24), the material discharge pipe (14) is horizontally arranged, a plurality of material discharge holes are formed in the side part of the material discharge pipe (14), a one-way valve (23) and an elastic regulation and control bag (25) are further arranged on the connecting pipe (24), a horizontally rotating roller coating shaft (15) is further installed at the other end of the moving frame (10), one end of the roller coating shaft (15) is connected with a main linkage wheel (22), the main linkage wheel (22) is abutted against a lifting plate (7), and the other end of the roller coating shaft (15) is connected with a slave linkage wheel (27) through a one-way bearing (26), the auxiliary linkage wheel (27) can abut against the regulating bag (25), and the auxiliary linkage wheel (27) is also provided with a gap part (28).
6. The sintering process of the ferrite core is characterized in that the moving structure comprises a first guide rail (17), a first sliding block (18), a first screw rod (20), a first nut (19) and a first servo motor (21), wherein the first guide rail (17) is horizontally fixed on the lifting plate (7), the first sliding block (18) is arranged on the first guide rail (17), the first screw rod (20) is horizontally and rotatably installed on the lifting plate (7), the first screw rod (20) is parallel to the first guide rail (17), the end part of the first screw rod (20) is connected with the first servo motor (21), the first nut (19) is in threaded connection with the first screw rod (20), and the moving frame (10) is installed between the first nut (19) and the first sliding block (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111346641.9A CN114121472B (en) | 2021-11-15 | Sintering process of ferrite core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111346641.9A CN114121472B (en) | 2021-11-15 | Sintering process of ferrite core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114121472A true CN114121472A (en) | 2022-03-01 |
| CN114121472B CN114121472B (en) | 2024-05-24 |
Family
ID=
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1251198A (en) * | 1968-03-01 | 1971-10-27 | ||
| DE2845676A1 (en) * | 1978-10-20 | 1980-04-30 | Bbc Brown Boveri & Cie | DEVICE FOR THE AUTOMATIC LAYERING OF LAMINATED IRON CORES |
| CN102376444A (en) * | 2011-08-25 | 2012-03-14 | 天长市中德电子有限公司 | Magnetic core sintering method and device |
| CN103342562A (en) * | 2013-07-04 | 2013-10-09 | 江苏省晶石磁性材料与器件工程技术研究有限公司 | Sintering process of magnesium-iron ferrite small magnetic core |
| CN106683866A (en) * | 2016-12-19 | 2017-05-17 | 江西尚朋电子科技有限公司 | Preparation method of eccentric magnetic core component of soft magnetic ferrite |
| CN106747481A (en) * | 2016-12-15 | 2017-05-31 | 上海宝钢磁业有限公司 | A kind of large scale magnetic core feed powder and preparation method thereof |
| WO2018058782A1 (en) * | 2016-09-30 | 2018-04-05 | 江苏师范大学 | Automatic handle assembly system for paint brush |
| CN108922767A (en) * | 2018-07-17 | 2018-11-30 | 江苏佰迪凯磁性材料有限公司 | The sintering process of magnetic core |
| CN208217818U (en) * | 2018-04-26 | 2018-12-11 | 临安和顺磁通电子有限公司 | Cross rotary material collecting equipment |
| CN109308971A (en) * | 2018-08-20 | 2019-02-05 | 海宁华悦电子有限公司 | A kind of magnetic core processing unit (plant) |
| CN208781694U (en) * | 2018-08-20 | 2019-04-23 | 海宁华悦电子有限公司 | A kind of core production device |
| CN109704788A (en) * | 2018-12-27 | 2019-05-03 | 横店集团东磁股份有限公司 | A kind of processing method of ferrite sheet sintering load bearing board |
| CN208901890U (en) * | 2018-09-03 | 2019-05-24 | 海宁华悦电子有限公司 | A kind of sintering furnace of magnetic core |
| JP2020006446A (en) * | 2018-07-02 | 2020-01-16 | スンジク キム | Machine for shaping ferrite magnets used for motor |
| CN210945399U (en) * | 2019-10-17 | 2020-07-07 | 海宁华悦电子有限公司 | A go up whitewashed device for assisting separation after ferrite sintering |
| CN211964724U (en) * | 2019-12-30 | 2020-11-20 | 天津市富特斯科技发展有限公司 | Rotary roller coating device for solvent-free epoxy ceramic coating |
| CN112059859A (en) * | 2020-08-17 | 2020-12-11 | 海宁华悦电子有限公司 | Grinding device is used in magnetic core processing with material loading function |
| CN112103067A (en) * | 2020-08-17 | 2020-12-18 | 海宁华悦电子有限公司 | Production method and device of ferrite magnetic core |
| CN113310319A (en) * | 2020-02-26 | 2021-08-27 | 上海继胜磁性材料有限公司 | Magnetic core bearing burning structure |
| CN113345707A (en) * | 2021-06-07 | 2021-09-03 | 湖北微硕新材料有限公司 | Preparation method of high-inductance consistency magnetic ring |
| KR102305983B1 (en) * | 2021-04-14 | 2021-09-28 | 주식회사 디알테크 | Multiple stacking plate for sinteringelectric parts |
| CN214610254U (en) * | 2021-03-10 | 2021-11-05 | 东莞市顺通机械有限公司 | Automatic blank discharging device |
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1251198A (en) * | 1968-03-01 | 1971-10-27 | ||
| DE2845676A1 (en) * | 1978-10-20 | 1980-04-30 | Bbc Brown Boveri & Cie | DEVICE FOR THE AUTOMATIC LAYERING OF LAMINATED IRON CORES |
| CN102376444A (en) * | 2011-08-25 | 2012-03-14 | 天长市中德电子有限公司 | Magnetic core sintering method and device |
| CN103342562A (en) * | 2013-07-04 | 2013-10-09 | 江苏省晶石磁性材料与器件工程技术研究有限公司 | Sintering process of magnesium-iron ferrite small magnetic core |
| WO2018058782A1 (en) * | 2016-09-30 | 2018-04-05 | 江苏师范大学 | Automatic handle assembly system for paint brush |
| CN106747481A (en) * | 2016-12-15 | 2017-05-31 | 上海宝钢磁业有限公司 | A kind of large scale magnetic core feed powder and preparation method thereof |
| CN106683866A (en) * | 2016-12-19 | 2017-05-17 | 江西尚朋电子科技有限公司 | Preparation method of eccentric magnetic core component of soft magnetic ferrite |
| CN208217818U (en) * | 2018-04-26 | 2018-12-11 | 临安和顺磁通电子有限公司 | Cross rotary material collecting equipment |
| JP2020006446A (en) * | 2018-07-02 | 2020-01-16 | スンジク キム | Machine for shaping ferrite magnets used for motor |
| CN108922767A (en) * | 2018-07-17 | 2018-11-30 | 江苏佰迪凯磁性材料有限公司 | The sintering process of magnetic core |
| CN208781694U (en) * | 2018-08-20 | 2019-04-23 | 海宁华悦电子有限公司 | A kind of core production device |
| CN109308971A (en) * | 2018-08-20 | 2019-02-05 | 海宁华悦电子有限公司 | A kind of magnetic core processing unit (plant) |
| CN208901890U (en) * | 2018-09-03 | 2019-05-24 | 海宁华悦电子有限公司 | A kind of sintering furnace of magnetic core |
| CN109704788A (en) * | 2018-12-27 | 2019-05-03 | 横店集团东磁股份有限公司 | A kind of processing method of ferrite sheet sintering load bearing board |
| CN210945399U (en) * | 2019-10-17 | 2020-07-07 | 海宁华悦电子有限公司 | A go up whitewashed device for assisting separation after ferrite sintering |
| CN211964724U (en) * | 2019-12-30 | 2020-11-20 | 天津市富特斯科技发展有限公司 | Rotary roller coating device for solvent-free epoxy ceramic coating |
| CN113310319A (en) * | 2020-02-26 | 2021-08-27 | 上海继胜磁性材料有限公司 | Magnetic core bearing burning structure |
| CN112059859A (en) * | 2020-08-17 | 2020-12-11 | 海宁华悦电子有限公司 | Grinding device is used in magnetic core processing with material loading function |
| CN112103067A (en) * | 2020-08-17 | 2020-12-18 | 海宁华悦电子有限公司 | Production method and device of ferrite magnetic core |
| CN214610254U (en) * | 2021-03-10 | 2021-11-05 | 东莞市顺通机械有限公司 | Automatic blank discharging device |
| KR102305983B1 (en) * | 2021-04-14 | 2021-09-28 | 주식회사 디알테크 | Multiple stacking plate for sinteringelectric parts |
| CN113345707A (en) * | 2021-06-07 | 2021-09-03 | 湖北微硕新材料有限公司 | Preparation method of high-inductance consistency magnetic ring |
Non-Patent Citations (1)
| Title |
|---|
| 李俊, 冷观武, 文俊翔, 彭虎: "微波烧结Ni-Zn铁氧体软磁材料的初步研究", 磁性材料及器件, no. 04, 30 August 2004 (2004-08-30), pages 30 - 41 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212831382U (en) | Magnetic core displacement mechanism | |
| CN105314132A (en) | Full-automatic sagger quantitative-filling machine | |
| CN114121472A (en) | Sintering process of ferrite magnetic core | |
| CN108818513B (en) | Rotary feeding manipulator | |
| CN114121472B (en) | Sintering process of ferrite core | |
| CN210884216U (en) | Rotary material taking and placing device | |
| CN216245530U (en) | Sintering furnace with feeding function | |
| CN218638217U (en) | Hot rolling device for processing die steel | |
| CN216096093U (en) | Continuous automatic straightening and leveling machine for cutter and continuous heat treatment furnace for cutter | |
| CN214176092U (en) | Automatic rubberizing device in bluetooth battery both sides | |
| US4720615A (en) | Induction sintering process and apparatus | |
| CN108636722A (en) | Stator coil applies powder equipment automatically | |
| CN211970639U (en) | Automatic positioning and conveying platform for heat-insulating board | |
| CN110181061B (en) | Bimetallic cylinder production equipment and production method based on electromagnetic induction heating | |
| CN209834955U (en) | Core arrangement device of film capacitor winding machine | |
| CN108001937B (en) | Workpiece transfer device for resistance furnace | |
| CN220008486U (en) | Feeding switching mechanism and forming equipment | |
| CN220481772U (en) | Magazine type middle station | |
| CN207030331U (en) | A kind of material overturning machine structure | |
| CN112059045A (en) | Plate carrying device for punching machine | |
| CN215100170U (en) | A high efficiency conveyer for unloading in boat | |
| CN220943437U (en) | Curve shearing device for amorphous alloy strip | |
| CN114524263B (en) | Self-adaptive wheel hub unstacker | |
| CN211872144U (en) | High-efficient polycrystalline silicon ingot casting furnace | |
| CN220229937U (en) | Laser paper drying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |