CN115872755A - Anti-cracking ferrite core sintering process - Google Patents
Anti-cracking ferrite core sintering process Download PDFInfo
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- CN115872755A CN115872755A CN202211505670.XA CN202211505670A CN115872755A CN 115872755 A CN115872755 A CN 115872755A CN 202211505670 A CN202211505670 A CN 202211505670A CN 115872755 A CN115872755 A CN 115872755A
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- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 57
- 238000005245 sintering Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000008569 process Effects 0.000 title claims abstract description 19
- 238000005336 cracking Methods 0.000 title claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 239000007921 spray Substances 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 238000000861 blow drying Methods 0.000 claims abstract description 6
- 230000007246 mechanism Effects 0.000 claims description 16
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 8
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims description 8
- 230000007306 turnover Effects 0.000 claims description 8
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 4
- 239000005751 Copper oxide Substances 0.000 claims description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 229910000431 copper oxide Inorganic materials 0.000 claims description 4
- 239000007822 coupling agent Substances 0.000 claims description 4
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims description 4
- 235000019341 magnesium sulphate Nutrition 0.000 claims description 4
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 239000012745 toughening agent Substances 0.000 claims description 4
- 239000011787 zinc oxide Substances 0.000 claims description 4
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 238000012546 transfer Methods 0.000 description 8
- 239000012535 impurity Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000003749 cleanliness Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 239000008213 purified water Substances 0.000 description 2
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 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
- 239000000155 melt Substances 0.000 description 1
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Abstract
The invention relates to an anti-cracking ferrite core sintering process which is characterized in that a core blank is placed on a core sintering furnace, and the core blank is subjected to double-sided spray water cleaning and blow-drying under the coordination of a first net chain conveyor and a second net chain conveyor; placing the magnetic core blank array on a burning bearing plate, then putting the magnetic core blank array into a furnace box, heating to 400-500 ℃ at the speed of 3-5 ℃/min, and heating for 1-3h; heating the magnetic core blank to 600-1100 ℃ for 2-4h; heating the magnetic core blank to 1100-1400 ℃ for 2-4h; keeping the temperature of the magnetic core blank at 1350-1380 ℃ for 4-5h; cooling to 450-550 ℃ for 3-6h; naturally cooling to room temperature to obtain the product.
Description
Technical Field
The invention relates to the technical field of ferrite core sintering, in particular to a cracking-resistant ferrite core sintering process.
Background
The ferrite magnetic core is a high-frequency magnetic conductive material (the principle is the same as that of a silicon steel sheet, but the ferrite magnetic core is only used in a high-frequency environment), is mainly used as a high-frequency transformer (such as a switching power supply, a line output transformer and the like), a high-frequency magnetic ring (for interference resistance) and the like, increases the magnetic permeability, improves the inductance quality factor, is used in the transformer, and needs to use a magnetic core sintering furnace in the ferrite magnetic core processing process.
And the fracture appears in the ferrite core sintering time easily at present, simultaneously, in the ferrite core sintering process, the direct sintering treatment of selection is mostly carried out to the preceding double-sided washing preliminary treatment operation of ferrite core sintering, leads to the ferrite core to get into the magnetic core sintering furnace after, and the residual impurity in surface adheres to, influences the sintering quality, and consequently, it is very necessary to design an anti ferrite core sintering process that ftractures.
Disclosure of Invention
The invention aims to provide a cracking-resistant ferrite core sintering process aiming at the problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a crack-resistant ferrite core sintering process is characterized in that a core blank is placed on a core sintering furnace, and the core blank is subjected to double-sided spray water cleaning and blow-drying under the cooperation of a first net chain conveyor and a second net chain conveyor; placing the magnetic core blank array on a burning bearing plate, then putting the magnetic core blank array into a furnace box, heating to 400-500 ℃ at the speed of 3-5 ℃/min, and heating for 1-3h; heating the magnetic core blank to 600-1100 ℃ for 2-4h; heating the magnetic core blank to 1100-1400 ℃ for 2-4h; keeping the temperature of the magnetic core blank at 1350-1380 ℃ for 4-5h; cooling to 450-550 ℃, and cooling for 3-6h; naturally cooling to room temperature to obtain the product.
The magnetic core blank is formed by pressing the following raw materials in parts by weight: 46-52 parts of ferric oxide, 10-14 parts of copper oxide, 11-15 parts of zinc oxide, 20-36 parts of manganese oxide, 9-15 parts of magnesium sulfate, 1-4 parts of calcium oxide, 2-4 parts of a coupling agent, 1-3 parts of a toughening agent and 2-4 parts of an anti-shrinking agent.
Magnetic core fritting furnace includes first net chain conveyer, the right side fixedly connected with link of first net chain conveyer, the second net chain conveyer that the right side fixedly connected with of link and first net chain conveyer cooperation were used, one side fixedly connected with stove case that the link was kept away from to second net chain conveyer, stacking mechanism has between second net chain conveyer and the stove case, the center department of stove incasement chamber rotates from a left side to the right side in proper order and is connected with the transfer roller, the stove case is close to the top fixedly connected with of transfer roller and goes up heating coil, heating coil under the bottom fixedly connected with of stove case being close to the transfer roller, the stove case is close to one side fixedly connected with unloading transportation frame of transfer roller, be provided with pretreatment mechanism on first net chain conveyer, link and the second net chain conveyer.
Pretreatment mechanism includes the upset motor, the back at the link is fixed to the upset motor, equal fixedly connected with all around of upset motor output shaft and the deflector that first net chain conveyer and second net chain conveyer cooperation were used, the top of placing water tank and water tank inner chamber is from last to having set gradually one-level screen frame and second grade screen frame down, the delivery port intercommunication of water tank has the booster water pump with link fixed coordination and booster water pump's delivery port intercommunication has first three way connection, the other end intercommunication that all the intercommunication of the both ends of first three way connection has branch pipe and branch pipe has the second three way connection, the both ends of second three way connection all through the water pipe intercommunication have with first net chain conveyer and second net chain conveyer fixed coordination house steward, the house steward is close to all intercommunication all around of first net chain conveyer and second net chain conveyer and has the fog nozzle.
The quantity of deflector is four groups and the contained angle between every group is the right angle, the both sides of deflector inner chamber all rotate and are connected with the guide roll.
And positioning clamping grooves are formed in the periphery of the top of the inner cavity of the water tank, and positioning clamping strips fixedly matched with the primary filter screen frame and the secondary filter screen frame are clamped in the inner cavity of each positioning clamping groove.
The meshes of the first-stage filter screen frame adopt a rhombic design, the meshes of the second-stage filter screen frame adopt a hole-type design, and the mesh density of the first-stage filter screen frame is smaller than that of the second-stage filter screen frame.
The spray nozzles are distributed in a divergence shape along the transverse axis of the bottom of the main pipe, and one ends of the spray nozzles, which are close to the first net chain conveyor and the second net chain conveyor, are communicated with a water collecting head.
Compared with the prior art, the invention has the beneficial effects that:
the invention can ensure that the ferrite magnetic core is not easy to crack during sintering by reasonably optimizing the components, the sintering temperature and the magnetic core sintering furnace in the sintering process.
Through setting up pretreatment mechanism, by the cooperation of upset motor and steering panel, realize the turn-over effect to the ferrite core before getting into the stove case, satisfy the two-sided preliminary treatment demand of ferrite core, again by the water tank, one-level screen frame, second grade screen frame, booster water pump, first three way connection, the branch pipe, second three way connection, house steward and atomizer's cooperation, under hydrologic cycle's prerequisite, fully wash the preliminary treatment effect to the two-sided realization of ferrite core, improve the surface cleanliness factor of ferrite core, in order to prevent that the remaining impurity in ferrite core surface from appearing melting under high temperature and adhering to, improve the sintering quality of ferrite core.
Through the guide roll, the unloading work after the ferrite core upset of being convenient for to prevent that the ferrite core is long-pending to stay on the deflector, through positioning channel section and locator card strip, the person of facilitating the use carries out quick assembly disassembly clearance to one-level strainer rack and second grade strainer rack.
Drawings
FIG. 1 is a schematic structural diagram of a magnetic core sintering furnace according to the present invention;
FIG. 2 is a partial rear sectional view of a structure of a magnetic core sintering furnace according to the present invention;
FIG. 3 is a partial bottom view of the structure of the pretreatment mechanism of the present invention;
FIG. 4 is an exploded view of the water tank, primary strainer tray and secondary strainer tray according to the present invention;
fig. 5 is a front view of the structure of the first net chain conveyor, the connecting frame and the second net chain conveyor according to the present invention.
In the figure: 1. a first mesh chain conveyor; 2. a connecting frame; 3. a second mesh chain conveyor; 4. a furnace box; 5. a conveying roller; 6. an upper heating coil; 7. a lower heating coil; 8. a pretreatment mechanism; 81. turning over a motor; 82. a steering plate; 83. a water tank; 84. a primary strainer holder; 85. a secondary filter screen frame; 86. pressurizing the water pump; 87. a first three-way joint; 88. a branch pipe; 89. a second three-way joint; 810. a header pipe; 811. a spray nozzle; 9. positioning a clamping groove; 10. and positioning the clamping strip.
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.
According to the anti-cracking ferrite core sintering process, a core blank is placed on a core sintering furnace, and the core blank is subjected to double-sided spray water cleaning and blow-drying under the cooperation of a first net chain conveyor and a second net chain conveyor; placing the magnetic core blank array on a burning bearing plate, then putting the magnetic core blank array into a furnace box, heating to 400-500 ℃ at the speed of 3-5 ℃/min, and heating for 1-3h; heating the magnetic core blank to 600-1100 ℃ for 2-4h; heating the magnetic core blank to 1100-1400 ℃ for 2-4h; keeping the temperature of the magnetic core blank at 1350-1380 ℃ for 4-5h; cooling to 450-550 ℃ for 3-6h; naturally cooling to room temperature to obtain the product.
The magnetic core blank is formed by pressing the following raw materials in parts by weight: 46-52 parts of ferric oxide, 10-14 parts of copper oxide, 11-15 parts of zinc oxide, 20-36 parts of manganese oxide, 9-15 parts of magnesium sulfate, 1-4 parts of calcium oxide, 2-4 parts of a coupling agent, 1-3 parts of a toughening agent and 2-4 parts of an anti-shrinking agent; in this embodiment, the magnetic core blank is formed by pressing the following raw materials in parts by weight: 50 parts of ferric oxide, 11 parts of copper oxide, 13 parts of zinc oxide, 25 parts of manganese oxide, 12 parts of magnesium sulfate, 1 part of calcium oxide, 3 parts of coupling agent, 2 parts of toughening agent and 3 parts of anti-shrinking agent.
Example one
Referring to fig. 1-5, the magnetic core sintering furnace comprises a first net chain conveyor 1, wherein a connecting frame 2 is fixedly connected to the right side of the first net chain conveyor 1, a second net chain conveyor 3 matched with the first net chain conveyor 1 is fixedly connected to the right side of the connecting frame 2, a furnace box 4 is fixedly connected to one side, away from the connecting frame 2, of the second net chain conveyor 3, a stacking mechanism is arranged between the second net chain conveyor 3 and the furnace box 4, the stacking mechanism adopts an existing structure, and magnetic cores at the second net chain conveyor 3 can be stacked and placed on a bearing plate, so that a magnetic core blank array is placed on the bearing plate; in the practical use, the tail end of the second net chain conveyor 3 is also provided with a blow-drying component, and the blow-drying component adopts the existing structure; the center department of the inner chamber of furnace box 4 rotates from a left side to the right side in proper order and is connected with transfer roller 5, furnace box 4 is close to heating coil 6 on the top fixedly connected with of transfer roller 5, furnace box 4 is close to heating coil 7 under the bottom fixedly connected with of transfer roller 5, furnace box 4 is close to one side fixedly connected with unloading transportation frame of transfer roller 5, first net chain conveyor 1, be provided with pretreatment mechanism 8 on link 2 and the second net chain conveyor 3, through setting up pretreatment mechanism 8, by the cooperation of upset motor 81 and steering panel 82, to getting into the ferrite core before furnace box 4 and realizing the turn-over effect, satisfy the two-sided preliminary treatment demand of ferrite core, again by water tank 83, one-level screen frame 84, second grade screen frame 85, booster pump 86, first three way connection 87, branch pipe 88, second three way connection 89, the cooperation of house steward 810 and fog nozzle, under the prerequisite of water circulation, to the two-sided realization of ferrite core fully wash the preliminary treatment effect, improve the surface cleanliness of ferrite core, in order to prevent that the residual impurity of ferrite core surface appears under high temperature sintering magnetic core melts the adhesion quality of ferrite core.
Example two
The improvement on the basis of the first embodiment: a magnetic core sintering furnace comprises a first net chain conveyor 1, a connecting frame 2 is fixedly connected to the right side of the first net chain conveyor 1, a second net chain conveyor 3 matched with the first net chain conveyor 1 is fixedly connected to the right side of the connecting frame 2, a furnace box 4 is fixedly connected to one side, far away from the connecting frame 2, of the second net chain conveyor 3, a conveying roller 5 is sequentially and rotatably connected to the center of the inner cavity of the furnace box 4 from left to right, an upper heating coil 6 is fixedly connected to the top, close to the conveying roller 5, of the furnace box 4, a lower heating coil 7 is fixedly connected to the bottom, close to the conveying roller 5, of the furnace box 4, a blanking conveying frame is fixedly connected to one side, close to the conveying roller 5, a pretreatment mechanism 8 is arranged on the first net chain conveyor 1, the connecting frame 2 and the second net chain conveyor 3, the pretreatment mechanism 8 comprises a turnover motor 81, the turnover motor 81 is fixed to the back of the pretreatment frame 2, the periphery of the output shaft of the overturning motor 81 is fixedly connected with four groups of steering plates 82 matched with the first net chain conveyor 1 and the second net chain conveyor 3 for use, the number of the steering plates 82 is four, the included angle between each group is a right angle, two sides of the inner cavity of the steering plates 82 are rotatably connected with guide rollers, so that the blanking work after the ferrite magnetic core is overturned is facilitated, the ferrite magnetic core is prevented from being accumulated on the steering plates 82, the bottom parts of the first net chain conveyor 1 and the second net chain conveyor 3 are provided with a water tank 83, the top part of the inner cavity of the water tank 83 is sequentially provided with a first-stage filter screen frame 84 and a second-stage filter screen frame 85 from top to bottom, the periphery of the top part of the inner cavity of the water tank 83 is provided with a positioning clamping groove 9, the inner cavity of the positioning clamping groove 9 is clamped with a positioning clamping strip 10 fixedly matched with the first-stage filter screen frame 84 and the second-stage filter screen frame 85, and a user can conveniently carry out quick disassembly and cleaning on the first-stage filter screen frame 84 and the second-stage filter screen frame 85, the meshes of the first-stage filter screen frame 84 are designed in a diamond shape, the meshes of the second-stage filter screen frame 85 are designed in a hole shape, the mesh density of the first-stage filter screen frame 84 is smaller than that of the second-stage filter screen frame 85, impurities in wastewater are filtered in two stages sufficiently, a water outlet of the water tank 83 is communicated with a booster water pump 86 fixedly matched with the connecting frame 2, a water outlet of the booster water pump 86 is communicated with a first three-way joint 87, two ends of the first three-way joint 87 are communicated with branch pipes 88, the other ends of the branch pipes 88 are communicated with a second three-way joint 89, two ends of the second three-way joint 89 are communicated with a header pipe 810 fixedly matched with the first net chain conveyor 1 and the second net chain conveyor 3 through water pipes, the peripheries of the header pipe 810 close to the first net chain conveyor 1 and the second net chain conveyor 3 are communicated with spray nozzles 811, and the spray nozzles 811 are distributed in a divergent shape along the transverse axis at the bottom of the header pipe 810, the spraying nozzle 811 is communicated with the water collecting head at one end close to the first net chain conveyor 1 and the second net chain conveyor 3, the ferrite magnetic cores on the first net chain conveyor 1 and the second net chain conveyor 3 are effectively sprayed with water for cleaning so as to prevent water from diffusing and splashing, the pretreatment mechanism 8 is arranged, the ferrite magnetic cores before entering the furnace box 4 are turned over by the cooperation of the turning motor 81 and the steering plate 82, the pretreatment requirement of double surfaces of the ferrite magnetic cores is met, and then the water tank 83, the primary filter screen frame 84, the secondary filter screen frame 85, the booster water pump 86, the first three-way joint 87, the branch pipe 88, the second three-way joint 89, the header pipe 810 and the spraying nozzle 811 are matched, so that the pretreatment effect of fully cleaning the double surfaces of the ferrite magnetic cores is realized on the premise of water circulation, the surface cleanliness of the ferrite magnetic cores is improved, and the residual impurities on the surfaces of the ferrite magnetic cores are prevented from being melted and attached at high temperature, the sintering quality of the ferrite core is improved.
In the invention, a user firstly puts the ferrite magnetic core to be sintered on the first net chain conveyor 1 for forward conveying, when the ferrite cores on the first net chain conveyor 1 are conveyed to one group of the steering plates 82, the overturning motor 81 is controlled to rotate for 90 degrees, the overturning motor 81 drives the ferrite cores on the steering plates 82 to turn over, and with the aid of the drive of the guide rollers, and in accordance with the inertia generated when the deflector plate 82 is turned through 90, the turned-over ferrite magnetic core reaches the second net chain conveyor 3, at the same time, the booster water pump 86 is controlled to be started, the purified water filled in the water tank 83 in advance is supplied into the two branch pipes 88 through the first three-way joint 87, the purified water is uniformly sprayed to the first net chain conveyor 1 and the second net chain conveyor 3 through the two groups of second three-way joints 89 and the two groups of spray nozzles 811 on the two main pipes 810, one surface of the ferrite core conveyed on the first net chain conveyor 1 and the other surface of the ferrite core conveyed on the second net chain conveyor 3 are cleaned, and at the same time the ferrite core is cleaned by spraying water on two surfaces, the wastewater sequentially leaks into the first-stage filter screen frame 84 and the second-stage filter screen frame 85 through meshes of the mesh chain conveyor belts on the first mesh chain conveyor 1 and the second mesh chain conveyor 3, impurities in the wastewater are filtered by the first-stage filter screen frame 84 and the second-stage filter screen frame 85 in two stages and then are converged into the water tank 83 again, then the ferrite core after double-sided cleaning reaches a conveying roller 5 in a furnace box 4, the conveying roller 5 slowly conveys the cleaned ferrite core, and the upper heating coil 6 and the lower heating coil 7 are controlled to be opened to carry out high-temperature sintering operation on the slowly conveyed ferrite core, and the ferrite core is conveyed to a blanking conveying frame by a conveying roller 5 after being sintered to carry out blanking.
In this embodiment, the water tank 83 is filled with zirconium powder water.
The above components are all common 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 (8)
1. A crack-resistant ferrite magnetic core sintering process is characterized in that a magnetic core blank is placed on a magnetic core sintering furnace, and the magnetic core blank is subjected to double-sided spray water cleaning and blow-drying under the coordination of a first net chain conveyor and a second net chain conveyor; placing the magnetic core blank array on a burning bearing plate, then putting the magnetic core blank array into a furnace box, heating to 400-500 ℃ at the speed of 3-5 ℃/min, and heating for 1-3h; heating the magnetic core blank to 600-1100 ℃ for 2-4h; heating the magnetic core blank to 1100-1400 ℃ for 2-4h; keeping the temperature of the magnetic core blank at 1350-1380 ℃ for 4-5h; cooling to 450-550 ℃ for 3-6h; naturally cooling to room temperature to obtain the product.
2. The sintering process of the crack-resistant ferrite core according to claim 1, wherein the core blank is formed by pressing the following raw materials in parts by weight: 46-52 parts of ferric oxide, 10-14 parts of copper oxide, 11-15 parts of zinc oxide, 20-36 parts of manganese oxide, 9-15 parts of magnesium sulfate, 1-4 parts of calcium oxide, 2-4 parts of a coupling agent, 1-3 parts of a toughening agent and 2-4 parts of an anti-shrinking agent.
3. The anti-cracking ferrite core sintering process according to claim 1, characterized in that the magnetic core sintering furnace comprises a first mesh chain conveyor (1), a right side fixedly connected with connecting frame (2) of the first mesh chain conveyor (1), a right side fixedly connected with second mesh chain conveyor (3) matched with the first mesh chain conveyor (1) for use, one side fixedly connected with furnace box (4) of the connecting frame (2) is kept away from by the second mesh chain conveyor (3), a stacking mechanism is arranged between the second mesh chain conveyor (3) and the furnace box (4), the center of the inner cavity of the furnace box (4) is sequentially connected with conveying rollers (5) in a rotating mode from left to right, the top fixedly connected with upper heating coil (6) of the conveying rollers (5) is close to the furnace box (4), the bottom fixedly connected with lower coil (7) of the furnace box (4) close to the conveying rollers (5), one side fixedly connected with a blanking conveying frame of the furnace box (4) close to the conveying rollers (5), and the first mesh chain conveyor (1), the second mesh chain conveyor (2) and the second mesh chain conveyor (3) are provided with an upper conveying mechanism (8).
4. The process of claim 3, wherein the ferrite core is sintered, the pretreatment mechanism (8) comprises a turnover motor (81), the turnover motor (81) is fixed on the back of the connecting frame (2), the periphery of the output shaft of the turnover motor (81) is fixedly connected with a steering plate (82) matched with the first net chain conveyor (1) and the second net chain conveyor (3) for use, a water tank (83) is placed at the bottom of the first net chain conveyor (1) and the second net chain conveyor (3), a primary filter screen frame (84) and a secondary filter screen frame (85) are sequentially arranged at the top of an inner cavity of the water tank (83) from top to bottom, the water outlet of the water tank (83) is communicated with a booster water pump (86) fixedly matched with the connecting frame (2), the water outlet of the booster water pump (86) is communicated with a first three-way joint (87), two ends of the first three-way joint (87) are communicated with branch pipes (88), the other ends of the branch pipes (88) are communicated with a second three-way joint (89), two ends of the second three-way joint (89) are communicated with a header pipe (810) fixedly matched with the first net chain conveyor (1) and the second net chain conveyor (3) through water pipes, spray nozzles (811) are communicated around the header pipe (810) close to the first net chain conveyor (1) and the second net chain conveyor (3).
5. The sintering process of the crack-resistant ferrite core as claimed in claim 4, wherein the number of the steering plates (82) is four and the included angle between each group is a right angle, and both sides of the inner cavity of the steering plates (82) are rotatably connected with guide rollers.
6. The sintering process of the crack-resistant ferrite core according to claim 4, wherein the periphery of the top of the inner cavity of the water tank (83) is provided with positioning clamping grooves (9), and positioning clamping strips (10) fixedly matched with the primary filter screen frame (84) and the secondary filter screen frame (85) are clamped in the inner cavity of the positioning clamping grooves (9).
7. The sintering process of claim 4, wherein the meshes of the primary strainer holder (84) are designed in a diamond shape, the meshes of the secondary strainer holder (85) are designed in a hole shape, and the mesh density of the primary strainer holder (84) is smaller than that of the secondary strainer holder (85).
8. The process of claim 4, wherein the spray nozzles (811) are distributed in a divergent manner along the transverse axis of the bottom of the header pipe (810), and wherein the spray nozzles (811) are connected with water collecting heads at the ends close to the first and second wire chain conveyors (1, 3).
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| JP2014019594A (en) * | 2012-07-13 | 2014-02-03 | Tdk Corp | Ferrite substrate and process of producing the same |
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Application publication date: 20230331 |