CN115259888A - Preparation method of integrated ceramic atomizing core and ceramic atomizer - Google Patents
Preparation method of integrated ceramic atomizing core and ceramic atomizer Download PDFInfo
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- CN115259888A CN115259888A CN202210823786.1A CN202210823786A CN115259888A CN 115259888 A CN115259888 A CN 115259888A CN 202210823786 A CN202210823786 A CN 202210823786A CN 115259888 A CN115259888 A CN 115259888A
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- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
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- C04B38/0645—Burnable, meltable, sublimable materials
- C04B38/067—Macromolecular compounds
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
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Abstract
The invention provides a preparation method of an integrated ceramic atomizing core, which comprises the following steps: preparing a heat-conducting base and ceramic slurry; the whole heat conduction base is integrally formed by adopting heat conduction materials, and an atomization cavity and an oil storage cavity are formed in the heat conduction base; injecting the ceramic slurry into the atomization cavity of the heat-conducting base, and then sintering to obtain an integrated ceramic atomization core; and the ceramic slurry in the atomizing cavity forms a porous ceramic body after sintering, and the porous ceramic body is in heat conduction contact with the inner wall of the atomizing cavity. The preparation method of the integrated ceramic atomizing core provided by the invention adopts an integrated sintering process, is simple to manufacture, has high heat conduction efficiency, and saves oil guide cotton. The invention also provides a ceramic atomizer.
Description
Technical Field
The invention relates to the technical field of electronic cigarettes, in particular to a preparation method of an integrated ceramic atomizing core and a ceramic atomizer.
Background
Porous ceramic atomizer is as one of electron atomizing device (electron cigarette)'s core component, compares with traditional cotton core or glass fiber rope, has advantages such as lipophilicity is strong, generate heat evenly, service temperature height.
The atomizing form of cigarette cream is melted the back through outlying heating steel pipe with the cigarette cream heating in the present ceramic atomizer, leads to the ceramic heating body through the non-woven fabrics (lead the oil cotton) again and heats the atomizing, and multiple materials such as steel pipe, cigarette cream, non-woven fabrics need be used to this kind of mode, and not only the equipment is troublesome, and the structure is unstable, and heat conduction efficiency is low moreover, influences user's use and experiences.
Disclosure of Invention
The invention aims to provide a preparation method of an integrated ceramic atomizing core and a ceramic atomizer.
The invention provides a preparation method of an integrated ceramic atomizing core, which comprises the following steps:
preparing a heat-conducting base and ceramic slurry; the whole heat conduction base is integrally formed by adopting heat conduction materials, and an atomization cavity and an oil storage cavity are formed in the heat conduction base;
injecting the ceramic slurry into the atomization cavity of the heat-conducting base, and then sintering to obtain an integrated ceramic atomization core; the ceramic slurry in the atomizing cavity forms a porous ceramic body after sintering, and the porous ceramic body is in heat conduction contact with the inner wall of the atomizing cavity.
In one implementable manner, the process of preparing the thermally conductive base includes the steps of:
mixing the main material, the conductive powder and the first glass powder, then carrying out ball milling to obtain a first mixed material, and placing the first mixed material into an injection molding machine for injection molding to obtain the heat-conducting base; the main material comprises metal oxide and aluminum nitride, wherein the metal oxide is at least one of aluminum oxide and zirconium oxide.
In an implementation manner, the weight parts of the main material, the conductive powder and the first glass powder are respectively: 70-75 parts of main material, 10-15 parts of conductive powder and 10-15 parts of first glass powder; the mesh number of the main material is 300-600 meshes, and the mesh number of the conductive powder is 800-1000 meshes.
In one implementation, the ceramic slurry is prepared by a process comprising the steps of:
mixing diatomite, second glass powder and PMMA, performing ball milling to obtain a second mixed material, mixing the second mixed material with paraffin and stearic acid, and performing ball milling in an ethanol solution to obtain the ceramic slurry.
In an achievable manner, the weight parts of the diatomaceous earth, the second glass frit, the PMMA, the paraffin wax and the stearic acid are respectively: 150-200 parts of diatomite, 100-120 parts of second glass powder, 250-300 parts of PMMA, 250-350 parts of paraffin and 30-70 parts of stearic acid; the particle size of PMMA is 100-200 microns.
In an implementation manner, before injecting the ceramic slurry into the atomization cavity of the heat-conducting base, a heating element is pre-embedded in the atomization cavity of the heat-conducting base, then the ceramic slurry is injected into the atomization cavity of the heat-conducting base, and then sintering is performed to obtain the integrated ceramic atomization core, so that the formed porous ceramic body is in heat-conducting contact with the heating element.
In an achievable mode, a partition plate is arranged in the heat-conducting base, and the atomizing cavity and the oil storage cavity are separated by the partition plate; be equipped with the oil outlet on the baffle, the porous ceramic body corresponds the oil outlet sets up and will the oil outlet plugs up.
The invention also provides a ceramic atomizer which comprises an integrated ceramic atomizing core, wherein the integrated ceramic atomizing core is manufactured by adopting the preparation method of the integrated ceramic atomizing core; integration ceramic atomizing core includes heat conduction base and porous ceramic body, be equipped with atomizing chamber and oil storage chamber in the heat conduction base, the porous ceramic body is located the atomizing intracavity and with the inner wall heat conduction contact in atomizing chamber, integration ceramic atomizing core does the porous ceramic body with the integrative sintering of heat conduction base forms.
In an achievable mode, a partition plate is arranged in the heat-conducting base, and the atomizing cavity and the oil storage cavity are separated by the partition plate; the oil outlet is arranged on the partition plate, and the porous ceramic body corresponds to the oil outlet and is used for plugging the oil outlet.
In an achievable mode, the atomization cavities are arranged in the middle position in the heat conduction base, the number of the oil storage cavities is two, and the two oil storage cavities are respectively arranged on two opposite sides of the atomization cavity; the heat conduction base is internally provided with two clapboards, the two clapboards are respectively corresponding to the oil storage cavities, the two clapboards are respectively positioned at two opposite sides of the porous ceramic body, and the two opposite ends of the porous ceramic body respectively plug the oil outlet holes on the two clapboards.
In an implementation manner, the ceramic atomizer further comprises a housing and a suction nozzle, the integrated ceramic atomizing core is arranged in the housing, the suction nozzle is located above the housing and connected with the housing, and the atomizing cavity is communicated with the suction nozzle.
In an achievable mode, the top of the heat conduction base is provided with a smoke outlet at a position corresponding to the atomization cavity, and the atomization cavity is communicated with the suction nozzle through the smoke outlet.
In an achievable mode, the side wall of the heat-conducting base and the inner wall of the shell are arranged at intervals, a flue is formed between the side wall of the heat-conducting base and the inner wall of the shell, and the atomizing cavity is communicated with the suction nozzle through the flue.
In an implementable manner, the ceramic atomizer further comprises a heat-generating body disposed within the housing; the heating body comprises a heating net and an electrode, the electrode is electrically connected with the heating net, the heating net is in heat conduction contact with the porous ceramic body, and the electrode extends out of the shell.
According to the preparation method of the integrated ceramic atomizing core, the heat-conducting base and the ceramic slurry are respectively prepared, then the ceramic slurry is injected into the atomizing cavity of the heat-conducting base, and then the integrated ceramic atomizing core can be obtained through sintering. Simultaneously because porous ceramic body and heat conduction base form as an organic whole sintering, the inner wall heat conduction contact in porous ceramic body and atomizing chamber, make to have good heat conductivility between porous ceramic body and the heat conduction base, and the heat conduction base adopts heat conduction material integrated into one piece, the heat of porous ceramic body can be conducted to the heat conduction base fast on, thereby make the tobacco tar (cigarette cream) of oil storage intracavity can the rapid heating melt and pour into and atomize in the porous ceramic body, the oil guide cotton has not only been saved, and the heat conduction efficiency is high, be favorable to promoting user experience.
Drawings
Fig. 1 is a schematic structural diagram of a ceramic atomizer according to an embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view of fig. 1.
Fig. 3 is a schematic diagram of the exploded structure of fig. 1.
Fig. 4 is a bottom view of fig. 3.
Fig. 5 is a perspective view of a thermally conductive base in an embodiment of the invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The terms of orientation, up, down, left, right, front, back, top, bottom, and the like (if any) referred to in the specification and claims of the present invention are defined by the positions of structures in the drawings and the positions of the structures relative to each other, only for the sake of clarity and convenience in describing the technical solutions. It is to be understood that the use of the directional terms should not be taken to limit the scope of the invention as claimed.
Fig. 1 is a schematic structural view of a ceramic atomizer according to an embodiment of the present invention, fig. 2 is a schematic sectional view of fig. 1, and fig. 3 is a schematic exploded structural view of fig. 1. As shown in fig. 1 to fig. 3, the method for manufacturing an integrated ceramic atomizing core provided in the embodiment of the present invention is used for manufacturing an integrated ceramic atomizing core in a ceramic atomizer. The preparation method of the integrated ceramic atomizing core comprises the following steps:
preparing a heat-conducting base 1 and ceramic slurry; the whole heat conduction base 1 is integrally formed by adopting heat conduction materials, and an atomization cavity 11 and an oil storage cavity 12 are formed in the heat conduction base 1;
injecting ceramic slurry into the atomizing cavity 11 of the heat-conducting base 1, and then sintering to obtain an integrated ceramic atomizing core; wherein, the ceramic slurry in the atomizing chamber 11 forms a porous ceramic body 2 after sintering, and the porous ceramic body 2 is in heat conduction contact with the inner wall of the atomizing chamber 11.
Specifically, according to the preparation method of the integrated ceramic atomizing core provided by this embodiment, the heat conducting base 1 and the ceramic slurry are respectively prepared first, then the ceramic slurry is injected into the atomizing cavity 11 of the heat conducting base 1, and then the integrated ceramic atomizing core is obtained by sintering, the preparation method adopts an integrated sintering process, the preparation method is simple in manufacture, the assembling step of the porous ceramic body 2 and the heat conducting base 1 is omitted, the assembling error can be avoided, and the porous ceramic body 2 can be prevented from falling off from the heat conducting base 1 (since the porous ceramic body 2 and the heat conducting base 1 are formed by integrated sintering, the porous ceramic body 2 is firmly adhered to the heat conducting base 1). Simultaneously because porous ceramic body 2 forms with heat conduction base 1 sintering as an organic whole, the inner wall heat conduction contact of porous ceramic body 2 and atomizing chamber 11, make to have good heat conductivility between porous ceramic body 2 and the heat conduction base 1, and heat conduction base 1 adopts heat conduction material integrated into one piece, the heat of porous ceramic body 2 can be conducted to heat conduction base 1 fast on, thereby make tobacco tar (cream) in the oil storage chamber 12 can the rapid heating melt and pour into and atomize in the porous ceramic body 2, the oil guide cotton has not only been saved, and the heat conduction efficiency is high, be favorable to promoting user experience.
In one embodiment, the sintering temperature is 1000-1300 ℃ and the sintering time is 3-4 hours.
As an embodiment, the preparation process of the heat conductive base 1 includes the following steps:
mixing the main material, the conductive powder and the first glass powder, then performing ball milling to obtain a first mixed material, and putting the first mixed material into an injection molding machine for injection molding to obtain a heat-conducting base 1; the main material comprises metal oxide and aluminum nitride, wherein the metal oxide is at least one of aluminum oxide and zirconium oxide. The main material, the conductive powder and the first glass powder are respectively in parts by weight: 70-75 parts of main material, 10-15 parts of conductive powder and 10-15 parts of first glass powder. The mesh number of the main material is 300-600 meshes, and the mesh number of the conductive powder is 800-1000 meshes.
Specifically, the main material is the main material component of the heat conducting base 1, and the main function of the heat conducting base is to form a compact ceramic matrix; the conductive powder can be conductive aluminum powder, conductive carbon powder and the like, and is mainly used for improving the conductivity and the heat conductivity of the heat-conducting base 1; the first glass powder is mainly used for improving the bonding performance of each component in the heat-conducting base 1.
As an embodiment, the preparation process of the ceramic slurry includes the following steps:
mixing diatomite, second glass powder and PMMA (polymethyl methacrylate), performing ball milling to obtain a second mixed material, mixing the second mixed material with paraffin and stearic acid, and performing ball milling in an ethanol solution to obtain ceramic slurry. Wherein, the weight parts of the diatomite, the second glass powder, the PMMA, the paraffin and the stearic acid are respectively as follows: 150-200 parts of diatomite, 100-120 parts of second glass powder, 250-300 parts of PMMA, 250-350 parts of paraffin and 30-70 parts of stearic acid. The particle size of PMMA is 100-200 microns.
Preferably, the weight part of the paraffin is 300 parts, and the weight part of the stearic acid is 50 parts.
Specifically, the diatomite is a base material of the porous ceramic body 2, the second glass powder is mainly used for improving the bonding performance of each component in the porous ceramic body 2, the PMMA is mainly used for generating pores in the porous ceramic body 2, and the paraffin is mainly used for uniformly mixing each component in the porous ceramic body 2; stearic acid is used as a surfactant and is mainly used for increasing the compatibility of the second mixed material and the ethanol solution, reducing the viscosity of the system, increasing the fluidity and avoiding the agglomeration of all components in the ceramic slurry. By matching the components of the material, the aperture of the pores in the porous ceramic body 2 can reach about 30 microns, and the porosity reaches 40-60 percent.
As an embodiment, before injecting the ceramic slurry into the atomizing chamber 11 of the heat conducting base 1, the heating element 5 is embedded in the atomizing chamber 11 of the heat conducting base 1, then the ceramic slurry is injected into the atomizing chamber 11 of the heat conducting base 1, and then sintering is performed to obtain an integrated ceramic atomizing core, so that the formed porous ceramic body 2 is in heat-conducting contact with the heating element 5. The heating element 5 may be embedded in the porous ceramic body 2, or may be in contact with the surface of the porous ceramic body 2, as long as heat conduction between the heating element 5 and the porous ceramic body 2 is maintained.
As shown in fig. 1 to 5, an embodiment of the present invention further provides a ceramic atomizer, which includes an integrated ceramic atomizing core, and the integrated ceramic atomizing core is manufactured by the above-mentioned method for manufacturing the integrated ceramic atomizing core. The integrated ceramic atomization core comprises a heat conduction base 1 and a porous ceramic body 2, wherein an atomization cavity 11 and an oil storage cavity 12 are arranged in the heat conduction base 1, and tobacco tar (tobacco paste) is stored in the oil storage cavity 12; the porous ceramic body 2 is positioned in the atomizing cavity 11 and is in heat conduction contact with the inner wall of the atomizing cavity 11, and the porous ceramic body 2 is positioned at the bottom position in the atomizing cavity 11; the integrated ceramic atomizing core is formed by sintering a porous ceramic body 2 and a heat conducting base 1 integrally.
As shown in fig. 2, as an embodiment, a partition plate 13 is arranged in the heat conducting base 1, and the atomizing chamber 11 and the oil storage chamber 12 are separated by the partition plate 13; the partition 13 is provided with an oil outlet 131, and the porous ceramic body 2 is disposed corresponding to the oil outlet 131 and blocks the oil outlet 131. The oil storage chamber 12 is a closed structure, and the soot in the oil storage chamber 12 can only flow into the porous ceramic body 2 through the oil outlet hole 131.
Specifically, the partition plate 13 is integrally formed with the heat conductive base 1 (i.e. the partition plate 13 is a part of the heat conductive base 1), so the partition plate 13 is also made of a heat conductive material, the partition plate 13 has a heat conductive function, and the partition plate 13 can conduct part of heat to the tobacco tar (smoke paste) in the oil storage chamber 12. The heat conduction mode of the partition board 13 includes the following two modes: 1. the partition 13 transfers heat through its portion in contact with the porous ceramic body 2; 2. the smoke generated after the tobacco tar (tobacco paste) in the atomization cavity 11 is atomized contacts with the surface of the partition plate 13, so that the partition plate 13 transfers the redundant heat in the smoke.
As shown in fig. 2, as an embodiment, the atomizing chamber 11 is disposed at a middle position in the heat conducting base 1, the number of the oil storage chambers 12 is two, and the two oil storage chambers 12 are respectively disposed at two opposite sides of the atomizing chamber 11. Be equipped with two baffles 13 in the heat conduction base 1, these two baffles 13 set up relatively and are located the relative both sides of porous ceramic body 2 respectively, and two oil storage chambeies 12 are corresponding with two baffles 13 respectively, and every oil storage chamber 12 separates with atomizing chamber 11 through a baffle 13 that corresponds, and the relative both ends of porous ceramic body 2 are plugged up oil outlet 131 on two baffles 13 respectively to form the structure of both sides play oil.
As shown in fig. 2 and fig. 3, as an embodiment, the ceramic atomizer further includes a housing 3 and a suction nozzle 4, the integrated ceramic atomizing core is disposed in the housing 3, the suction nozzle 4 is located above the housing 3 and connected to the housing 3, and the atomizing cavity 11 in the heat-conducting base 1 is communicated with the suction nozzle 4.
As shown in fig. 2 and fig. 3, as an embodiment, a smoke outlet 14 is provided at a position corresponding to the atomization chamber 11 on the top of the heat conductive base 1, the atomization chamber 11 is communicated with the smoke outlet 14, and the atomization chamber 11 is communicated with the suction nozzle 4 through the smoke outlet 14.
As shown in fig. 2 and 3, as an embodiment, the side wall of the heat conducting base 1 and the inner wall of the housing 3 are spaced apart from each other, a flue 31 is formed between the side wall of the heat conducting base 1 and the inner wall of the housing 3, the atomizing chamber 11 is communicated with the flue 31, and the atomizing chamber 11 is further communicated with the suction nozzle 4 through the flue 31.
Specifically, in this embodiment, the bottom of the heat conducting base 1 is provided with an opening communicated with the atomizing chamber 11, the atomizing chamber 11 is communicated with the flue 31 through the opening at the bottom, and the flue 31 is formed between the side walls of the two opposite sides of the heat conducting base 1 and the inner wall of the housing 3. This embodiment has increased the passageway that smog flowed to suction nozzle 4 from atomizing chamber 11 through setting up smoke outlet 14 and a plurality of flues 31 to increase the discharge amount of smog at every turn, be favorable to promoting user's use and experience.
As shown in fig. 2 and 4, the ceramic atomizer further includes a heating element 5, and the heating element 5 is provided in the case 3. The heating element 5 includes a heating net 51 and an electrode 52, the heating net 51 is a net structure, the electrode 52 is electrically connected with the heating net 51, the heating net 51 is in heat conduction contact with the porous ceramic body 2 (the heating net 51 may be embedded in the porous ceramic body 2, or may be in contact with the surface of the porous ceramic body 2, only the heat conduction between the heating net 51 and the porous ceramic body 2 needs to be maintained), and the electrode 52 extends out of the housing 3.
Specifically, the number of the electrodes 52 is two, and the electrodes are respectively a positive electrode and a negative electrode, and the positive electrode and the negative electrode are respectively used for connecting with a positive electrode and a negative electrode of a power supply (not shown). The housing 3 is provided with a through hole 32, and the electrode 52 extends out of the housing 3 through the through hole 32.
The working principle of the ceramic atomizer in the embodiment is as follows: after the heating element 5 is conducted with the power supply, the heating net 51 generates heat and conducts the heat to the porous ceramic body 2, the porous ceramic body 2 conducts part of the heat to the heat conduction base 1, the tobacco tar (tobacco paste) stored in the oil storage cavity 12 of the heat conduction base 1 is heated and then injected into the porous ceramic body 2 through the oil outlet 131 on the partition plate 13, the tobacco tar is further heated in the porous ceramic body 2 and then atomized into smoke, and the smoke formed by atomization flows to the suction nozzle 4 through the smoke outlet 14 and the flue 31 so as to be sucked by a user.
According to the preparation method of the integrated ceramic atomizing core and the ceramic atomizer provided by the embodiment of the invention, the heat conduction base 1 and the ceramic slurry are respectively prepared firstly, then the ceramic slurry is injected into the atomizing cavity 11 of the heat conduction base 1, and then the integrated ceramic atomizing core can be obtained through sintering, the preparation method adopts an integrated sintering process, the preparation method is simple, the assembly step of the porous ceramic body 2 and the heat conduction base 1 is omitted, the assembly error can be avoided, and the porous ceramic body 2 can be prevented from falling off from the heat conduction base 1 (the porous ceramic body 2 and the heat conduction base 1 are formed through integrated sintering, and the porous ceramic body 2 is firmly adhered to the heat conduction base 1). Simultaneously because porous ceramic body 2 forms with heat conduction base 1 sintering as an organic whole, the inner wall heat conduction contact of porous ceramic body 2 and atomizing chamber 11, make to have good heat conductivility between porous ceramic body 2 and the heat conduction base 1, and heat conduction base 1 adopts heat conduction material integrated into one piece, the heat of porous ceramic body 2 can be conducted to heat conduction base 1 fast on, thereby make tobacco tar (cream) in the oil storage chamber 12 can the rapid heating melt and pour into and atomize in the porous ceramic body 2, the oil guide cotton has not only been saved, and the heat conduction efficiency is high, be favorable to promoting user experience.
First embodiment
The preparation method of the integrated ceramic atomizing core provided by the embodiment comprises the following steps:
preparing a heat-conducting base 1: respectively weighing 45 parts of 600-mesh aluminum oxide, 30 parts of 600-mesh aluminum nitride, 15 parts of 1000-mesh conductive aluminum powder and 10 parts of glass powder, mixing, putting into a ball mill, ball-milling for 24 hours to obtain a first mixed material, and then putting the first mixed material into an injection molding machine, and performing injection molding to obtain a heat-conducting base 1;
preparing ceramic slurry: respectively weighing 200 parts of diatomite, 100 parts of glass powder and 300 parts of PMMA with the particle size of 200 micrometers, mixing, and then putting into a ball mill for ball milling for 12 hours to obtain a second mixed material; mixing the second mixed material with 300 parts of paraffin and 50 parts of stearic acid, and then ball-milling in an ethanol solution for 12 hours to obtain ceramic slurry;
the heating body 5 is pre-embedded in the atomization cavity 11 of the heat conduction base 1, ceramic slurry is injected into the atomization cavity 11 of the heat conduction base 1, and then sintering is carried out, wherein the sintering temperature is 1000 ℃, and the sintering time is 4 hours, so that the integrated ceramic atomization core can be obtained.
Second embodiment
The preparation method of the integrated ceramic atomizing core provided by the embodiment comprises the following steps:
preparing a heat-conducting base 1: respectively weighing 50 parts of alumina with 500 meshes, 20 parts of aluminum nitride with 500 meshes, 15 parts of conductive carbon powder with 800 meshes and 15 parts of glass powder, mixing, putting the mixture into a ball mill, carrying out ball milling for 24 hours to obtain a first mixed material, and then putting the first mixed material into an injection molding machine, and carrying out injection molding to obtain a heat-conducting base 1;
preparing ceramic slurry: respectively weighing 150 parts of diatomite, 120 parts of glass powder and 200 parts of PMMA (polymethyl methacrylate) with the particle size of 100 micrometers, mixing, and putting into a ball mill for ball milling for 12 hours to obtain a second mixed material; mixing the second mixed material with 300 parts of paraffin and 50 parts of stearic acid, and then ball-milling the mixture in an ethanol solution for 12 hours to obtain ceramic slurry;
the heating body 5 is pre-embedded in the atomization cavity 11 of the heat conduction base 1, ceramic slurry is injected into the atomization cavity 11 of the heat conduction base 1, and then sintering is carried out, wherein the sintering temperature is 1100 ℃, and the sintering time is 4 hours, so that the integrated ceramic atomization core can be obtained.
Third embodiment
The preparation method of the integrated ceramic atomizing core provided by the embodiment comprises the following steps:
preparing a heat-conducting base 1: respectively weighing 40 parts of alumina with 500 meshes, 35 parts of aluminum nitride with 500 meshes, 10 parts of conductive aluminum powder with 800 meshes and 15 parts of glass powder, mixing, putting the mixture into a ball mill, carrying out ball milling for 24 hours to obtain a first mixed material, and then putting the first mixed material into an injection molding machine, and carrying out injection molding to obtain a heat-conducting base 1;
preparing ceramic slurry: respectively weighing 200 parts of diatomite, 110 parts of glass powder and 280 parts of PMMA (polymethyl methacrylate) with the particle size of 150 micrometers, mixing, and putting into a ball mill for ball milling for 12 hours to obtain a second mixed material; mixing the second mixed material with 300 parts of paraffin and 50 parts of stearic acid, and then ball-milling the mixture in an ethanol solution for 12 hours to obtain ceramic slurry;
pre-burying a heating body 5 in the atomization cavity 11 of the heat conduction base 1, injecting ceramic slurry into the atomization cavity 11 of the heat conduction base 1, and then sintering at 1300 ℃ for 3 hours to obtain the integrated ceramic atomization core.
The parameters of the integrated ceramic atomizing core produced in each example are shown in the following table:
as can be seen from the above table, the thermal conductivity of the thermal conductive base 1 in each embodiment is greater than 170W/m · K, which indicates that the thermal conductive base 1 has good thermal conductivity; the porosity of the porous ceramic body 2 is over 50 percent, the pore diameter of the pores reaches about 30 micrometers, and the ceramic atomizing core has good oil absorption and atomization performances, so that the integrated ceramic atomizing core of each embodiment has good performances and can meet the actual use requirements.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. The preparation method of the integrated ceramic atomizing core is characterized by comprising the following steps of:
preparing a heat-conducting base and ceramic slurry; the whole heat conduction base is integrally formed by adopting heat conduction materials, and an atomization cavity and an oil storage cavity are formed in the heat conduction base;
injecting the ceramic slurry into the atomizing cavity of the heat-conducting base, and then sintering to obtain an integrated ceramic atomizing core; and the ceramic slurry in the atomizing cavity forms a porous ceramic body after sintering, and the porous ceramic body is in heat conduction contact with the inner wall of the atomizing cavity.
2. The method of making an integrated ceramic atomizing core according to claim 1, wherein the process of making the thermally conductive base comprises the steps of:
mixing the main material, the conductive powder and the first glass powder, then performing ball milling to obtain a first mixed material, and putting the first mixed material into an injection molding machine for injection molding to obtain the heat-conducting base; the main material comprises metal oxide and aluminum nitride, wherein the metal oxide is at least one of aluminum oxide and zirconium oxide.
3. The preparation method of the integrated ceramic atomizing core according to claim 2, wherein the main material, the conductive powder and the first glass powder are respectively prepared by the following steps in parts by weight: 70-75 parts of main material, 10-15 parts of conductive powder and 10-15 parts of first glass powder; the mesh number of the main material is 300-600 meshes, and the mesh number of the conductive powder is 800-1000 meshes.
4. The method of making an integrated ceramic atomizing core of claim 1, wherein the ceramic slurry is prepared by the steps of:
mixing diatomite, second glass powder and PMMA, performing ball milling to obtain a second mixed material, mixing the second mixed material with paraffin and stearic acid, and performing ball milling in an ethanol solution to obtain the ceramic slurry.
5. The method for preparing the integrated ceramic atomizing core according to claim 4, wherein the weight parts of the diatomite, the second glass powder, the PMMA, the paraffin and the stearic acid are respectively as follows: 150-200 parts of diatomite, 100-120 parts of second glass powder, 250-300 parts of PMMA, 250-350 parts of paraffin and 30-70 parts of stearic acid; the particle size of PMMA is 100-200 microns.
6. The method for preparing the integrated ceramic atomizing core according to claim 1, wherein before the ceramic slurry is injected into the atomizing cavity of the heat-conducting base, a heating element is pre-embedded in the atomizing cavity of the heat-conducting base, then the ceramic slurry is injected into the atomizing cavity of the heat-conducting base, and then sintering is performed to obtain the integrated ceramic atomizing core, so that the formed porous ceramic body is in heat-conducting contact with the heating element.
7. The method for preparing the integrated ceramic atomizing core according to claim 1, wherein a partition plate is arranged in the heat-conducting base, and the atomizing cavity and the oil storage cavity are separated by the partition plate; the oil outlet is arranged on the partition plate, and the porous ceramic body corresponds to the oil outlet and is used for plugging the oil outlet.
8. A ceramic atomizer, characterized by comprising an integrated ceramic atomizing core, wherein the integrated ceramic atomizing core is manufactured by the method for manufacturing the integrated ceramic atomizing core according to any one of claims 1 to 7; integration ceramic atomizing core includes heat conduction base and porous ceramic body, be equipped with atomizing chamber and oil storage chamber in the heat conduction base, the porous ceramic body is located the atomizing intracavity and with the inner wall heat conduction contact in atomizing chamber, integration ceramic atomizing core does the porous ceramic body with the integrative sintering of heat conduction base forms.
9. The ceramic atomizer according to claim 8, wherein a partition is provided in said heat conductive base, and said atomizing chamber and said oil storage chamber are separated by said partition; the oil outlet is arranged on the partition plate, and the porous ceramic body corresponds to the oil outlet and is used for plugging the oil outlet.
10. The ceramic atomizer according to claim 9, wherein said atomizing chamber is disposed at a central position within said heat-conducting base, and wherein there are two of said oil storage chambers, and two of said oil storage chambers are disposed at opposite sides of said atomizing chamber, respectively; the heat conduction base is internally provided with two clapboards, the two clapboards are respectively corresponding to the oil storage cavities, the two clapboards are respectively positioned at two opposite sides of the porous ceramic body, and the two opposite ends of the porous ceramic body respectively plug the oil outlet holes on the two clapboards.
11. The ceramic atomizer according to claim 8, further comprising a housing and a suction nozzle, said unitary ceramic atomizing core being disposed within said housing, said suction nozzle being positioned above and attached to said housing; the top of heat conduction base is in corresponding the position in atomizing chamber is equipped with the outlet flue, the atomizing chamber passes through the outlet flue with the suction nozzle intercommunication.
12. The ceramic atomizer according to claim 11, wherein a side wall of said heat-conducting base is spaced apart from an inner wall of said housing, a flue is formed between said side wall of said heat-conducting base and said inner wall of said housing, and said atomizing chamber is further in communication with said suction nozzle through said flue.
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