CN113261707B - Rapid heating porous ceramic atomization core for electronic cigarette and preparation method - Google Patents
Rapid heating porous ceramic atomization core for electronic cigarette and preparation method Download PDFInfo
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- CN113261707B CN113261707B CN202110633583.1A CN202110633583A CN113261707B CN 113261707 B CN113261707 B CN 113261707B CN 202110633583 A CN202110633583 A CN 202110633583A CN 113261707 B CN113261707 B CN 113261707B
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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
- A24F40/46—Shape or structure of electric heating means
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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
- A24F40/10—Devices using liquid inhalable precursors
-
- 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
-
- 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
- A24F40/70—Manufacture
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- Resistance Heating (AREA)
Abstract
The invention relates to the technical field of ceramic atomizing cores of electronic cigarettes, in particular to a rapid heating porous ceramic atomizing core for an electronic cigarette and a preparation method thereof, comprising a heating body, a silica gel sleeve sleeved outside the heating body and a heating component arranged at the bottom of the heating body, wherein the heating body comprises an upper end part and a lower end part, the upper end part is covered by the silica gel sleeve, an oil guide cavity is formed in the upper end part, an oil guide groove is formed in the silica gel sleeve corresponding to the oil guide cavity, the oil guide groove is communicated to the oil guide cavity, an isolating steel sheet is integrally fired in the oil guide cavity, a plurality of oil guide holes are formed in the isolating steel sheet, first micropores are uniformly distributed at the upper end part, second micropores are uniformly distributed at the lower end part, and the aperture of the first micropores is larger than that of the second micropores; according to the invention, micropores with different sizes are adopted, so that tobacco tar particles with different volumes can pass through, and when the types of the tobacco tar components are enough, the tobacco tar atomization taste is better and richer.
Description
Technical Field
The invention relates to the technical field of ceramic atomizing cores of electronic cigarettes, in particular to a rapid heating porous ceramic atomizing core for an electronic cigarette and a preparation method thereof.
Background
The electronic cigarette is mainly used for stopping smoking and replacing cigarettes, can simulate the taste of cigarettes, but can not release tar, nicotine and second-hand smoke harmful to human bodies when being drawn, and can improve the success rate of stopping smoking of nicotine replacement therapy, so that the electronic cigarette is emphasized by the top-dressing of the market and the country after being pushed out. The principle of the electronic atomization cigarette is that a smoke agent is heated and gasified on an electric heating element of an atomization system to form high-temperature steam which is sprayed out to an opening end, and the sprayed steam expands and condenses into smoke-like tiny liquid drops in the atmosphere, so that smoke similar to that of a traditional cigarette is formed.
The atomization core is one of key components of the electronic cigarette, and the existing atomization core comprises cotton core atomization, ceramic atomization and ultrasonic atomization and has the function of heating and atomizing tobacco tar. The existing ceramic electronic cigarette atomizer has the defects that the heating piece is single in structure, the stability is poor in the heating atomization process, meanwhile, the heating atomization efficiency is low, and the problems of poor taste and the like are caused, so that the further improvement is needed.
Disclosure of Invention
In order to solve the problems, the invention provides the fast heating porous ceramic atomizing core for the electronic cigarette, which adopts micropores with different sizes, has better effect in the atomizing process, avoids the problem of insufficient oil supply, improves the using effect, and can pass through tobacco tar particle components with different volumes, and when the types of the tobacco tar components are enough, the tobacco tar atomizing taste is better and richer, and the preparation method.
The technical scheme adopted by the invention is as follows: the utility model provides a quick porous ceramic atomizing core that generates heat for electron cigarette, includes that heat-generating body, cover locate the outside silica gel cover of heat-generating body and locate the heating element bottom, the heat-generating body includes upper end and lower tip, the silica gel cover will the upper end cladding, the oil guide chamber has been seted up to the upper end, the silica gel cover corresponds the oil guide chamber and is equipped with the oil guide groove, the oil guide groove communicates to the oil guide chamber, the integrative steel sheet that has fired of oil guide chamber, a plurality of oil guide holes have been seted up to the steel sheet that keeps apart, the upper end equipartition has first micropore, the lower tip equipartition has the second micropore, first microporous aperture is greater than the microporous aperture of second.
The technical scheme is further improved in that the heating body is a ceramic heating body, and the upper end part and the lower end part are integrally formed.
According to the scheme, the upper end portion extends towards two sides to form extension steps, and the silica gel sleeve is coated on the extension steps.
The scheme is further improved in that a rapid heat transfer part is arranged between the upper end part and the lower end part, and the rapid heat transfer part is composed of metal particles and is integrally formed between the upper end part and the lower end part.
The technical scheme is further improved in that the lower end part is provided with sealing clamping grooves close to two sides of the upper end part, the silica gel sleeve is provided with sealing buckles, and the sealing buckles are clamped into the sealing clamping grooves.
The technical scheme is further improved in that the oil guide groove comprises an oil inlet and a labyrinth oil way connected to the oil inlet, wherein the labyrinth oil way is provided with an oil inlet hole, and the oil inlet hole is communicated to the oil guide cavity.
According to the technical scheme, the sealing groove is formed in the opening position of the oil guide cavity, the isolation steel sheet extends to the opening position of the oil guide cavity, and the silica gel sleeve is provided with a sealing outer edge corresponding to the sealing groove.
The heating component comprises a power receiving sheet and a heating lead connected with the power receiving sheet, wherein the power receiving sheet and the heating lead are uniformly fired on the lower surface of the lower end part.
The technical scheme is further improved in that the power connection pins are welded on the power connection piece and extend downwards, and the power connection pins are sheet pins or columnar pins.
A preparation method of a rapid heating porous ceramic atomization core for an electronic cigarette comprises the following steps:
step S1, preparing a heating body jig, placing steel powder into the heating body jig, and forming a hot plate;
s2, preparing a material with a formed lower end part, wherein the material comprises ceramic aggregate and a sintering aid for drying; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix, a binder and a dispersing agent to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain a granular ceramic feed; injecting the granular ceramic feed into a heating body jig, and connecting the granular ceramic feed with a heating sheet to form a lower end green body;
s3, dispersing and putting metal particles on the surface of the green compact at the lower end part;
s4, preparing a molding material of the upper end part, wherein the step comprises the steps of drying ceramic aggregate and a sintering aid; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix, a binder and a dispersing agent to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain a granular ceramic feed, injecting the granular ceramic feed into a heating body jig to cover metal particles on the surface of a lower end green body to form an upper end green body, and forming a heating body green body by the upper end green body and the lower end green body;
s5, placing steel powder on the surface of the heating element green compact, pressing the steel powder by a heating element jig, forming an isolation steel sheet on the surface of the heating element green compact, and synchronously forming oil guide holes;
step S6, taking the heating element green compact out of the heating element jig, and degreasing the taken heating element green compact under the condition of embedding powder of calcined alumina under the preset degreasing condition; sintering the ceramic blank obtained by degreasing under the atmospheric condition under the preset sintering condition to obtain the rapid heating porous ceramic atomization core;
the method is further improved in that the particle size of the calcined alumina is 30-100 mu m, and the embedding condition of the calcined alumina is that the embedding depth is 5-6 cm.
A further improvement of the above scheme is that the degreasing condition is: the temperature is raised from room temperature to 120-200 ℃ at a heating rate of 0.3-1.1 ℃/min for 1.0-1.5 h, then is raised to 220-280 ℃ at a heating rate of 0.15-0.4 ℃/min, is raised to 400-560 ℃ at a heating rate of 0.4-0.6 ℃/min for 1.0-3.5 h, is raised to 800-900 ℃ at a heating rate of 1.4-3.6 ℃/min for 0.3-1.8 h, and is finally cooled along with a furnace.
A further improvement of the above scheme is that the sintering condition is: heating from room temperature to 800-960 ℃ at a heating rate of 3-8 ℃/min for 0.3-1.8 h, then heating to 1000-1300 ℃ at a heating rate of 1.6-2.8 ℃/min for 1.2-2.8 h, and finally cooling with a furnace.
In the step S2, the drying treatment condition is 100-150 ℃ for 2-4 hours; the mixing condition is that mixing is carried out for 3-5 hours at the temperature of 90-160 ℃; the injection temperature in injection molding is 50-70 ℃;
the process of the premix is that the total amount of the premix is 100%, the mass percentage of the ceramic aggregate is 55-70%, the mass percentage of the sintering aid is 20-25%, and the mass percentage of the pore-forming agent is 10-20%.
In the step S4, the drying treatment condition is 100-150 ℃ for 2-3 hours; the mixing condition is that mixing is carried out for 2-3 hours at the temperature of 80-150 ℃; the injection temperature in injection molding is 40-80 ℃;
the process of the premix is that the total amount of the premix is 100%, the mass percentage of the ceramic aggregate is 45-60%, the mass percentage of the sintering aid is 20-25%, and the mass percentage of the pore-forming agent is 20-30%.
The ceramic aggregate is at least one of diatomite, feldspar and quartz sand; the sintering aid is at least one of low-temperature lead-free glass powder, kaolin and tourmaline; the binder is at least one of paraffin wax, beeswax, palm wax and polyethylene; the pore-forming agent is at least one of polymethyl methacrylate, polyvinyl alcohol and polystyrene; the dispersing agent is stearic acid.
The beneficial effects of the invention are as follows:
compared with the traditional porous ceramic atomizing core, the heating element is provided with the heating element, and the first micropore and the second micropore are arranged in the heating element, so that micropores with different sizes are adopted, the effect is better in the atomizing process, the problem of insufficient oil supply is avoided, and the use effect is improved; in addition, set up the cooperation of keeping apart the steel sheet, can realize the isolation, prevent too much tobacco tar and get into inside, influence the taste, also promote simultaneously and generate heat efficiency, stable in structure is reliable. Specifically, set up the heat-generating body, the outside silica gel cover of heat-generating body is located to the cover and locate the heating element bottom, the heat-generating body includes upper end and lower tip, the silica gel cover will the upper end cladding, the oil guide chamber has been seted up to the upper end, the silica gel cover corresponds the oil guide chamber and is equipped with the oil guide groove, the oil guide groove communicates to the oil guide chamber, the integrative steel sheet that has fired of oil guide chamber, a plurality of oil guide holes have been seted up to the steel sheet that keeps apart, the upper end equipartition has first micropore, the lower tip equipartition has the second micropore, the aperture of first micropore is greater than the aperture of second micropore. By adopting micropores with different apertures, tobacco tar particles with different volumes can pass through, and when the types of the tobacco tar components are enough, the tobacco tar atomization taste is better and richer.
The preparation method of the rapid heating porous ceramic atomizing core comprises the following steps: step S1, preparing a heating body jig, placing steel powder into the heating body jig, and forming a hot plate; s2, preparing a material with a formed lower end part, wherein the material comprises ceramic aggregate and a sintering aid for drying; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix, a binder and a dispersing agent to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain a granular ceramic feed; injecting the granular ceramic feed into a heating body jig, and connecting the granular ceramic feed with a heating sheet to form a lower end green body; s3, dispersing and putting metal particles on the surface of the green compact at the lower end part; s4, preparing a molding material of the upper end part, wherein the step comprises the steps of drying ceramic aggregate and a sintering aid; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix, a binder and a dispersing agent to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain a granular ceramic feed, injecting the granular ceramic feed into a heating body jig to cover metal particles on the surface of a lower end green body to form an upper end green body, and forming a heating body green body by the upper end green body and the lower end green body; s5, placing steel powder on the surface of the heating element green compact, pressing the steel powder by a heating element jig, forming an isolation steel sheet on the surface of the heating element green compact, and synchronously forming oil guide holes; step S6, taking the heating element green compact out of the heating element jig, and degreasing the taken heating element green compact under the condition of embedding powder of calcined alumina under the preset degreasing condition; and sintering the ceramic blank obtained by degreasing under the atmospheric condition under the preset sintering condition to obtain the rapid heating porous ceramic atomization core. The whole manufacturing process is simple, the metal particles are combined in the heating body, and the efficiency and the stability are higher when the metal particles are matched with the heating component to generate heat.
Drawings
FIG. 1 is a schematic diagram of an explosive structure of the present invention;
FIG. 2 is a schematic view of an explosion structure from another perspective of the present invention;
FIG. 3 is a schematic top view of the present invention;
FIG. 4 is a cross-sectional view of A-A of FIG. 3;
FIG. 5 is a schematic illustration of a manufacturing process flow of the present invention.
Reference numerals illustrate: the heating element 1, the upper end 11, the oil guiding cavity 111, the isolating steel sheet 112, the extension step 113, the rapid heat transfer part 114, the lower end 12, the silica gel sleeve 2, the oil guiding groove 21, the oil inlet 211, the labyrinth oil way 212, the sealing buckle 22, the sealing outer edge 23, the heating component 3, the electric connection sheet 31, the electric connection pin 311 and the heating lead 32.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1 to 5, a quick heating porous ceramic atomization core for an electronic cigarette comprises a heating body 1, a silica gel sleeve 2 sleeved outside the heating body 1, and a heating component 3 arranged at the bottom of the heating body 1, wherein the heating body 1 comprises an upper end 11 and a lower end 12, the upper end 11 is covered by the silica gel sleeve 2, an oil guide cavity 111 is formed in the upper end 11, an oil guide groove 21 is formed in the silica gel sleeve 2 corresponding to the oil guide cavity 111, the oil guide groove 21 is communicated to the oil guide cavity 111, an isolation steel sheet 112 is integrally fired in the oil guide cavity 111, a plurality of oil guide holes are formed in the isolation steel sheet 112, first micropores are uniformly distributed in the upper end 11, second micropores are uniformly distributed in the lower end 12, and the aperture of the first micropores is larger than that of the second micropores.
The heating element 1 is a ceramic heating element 1, the upper end 11 and the lower end 12 are integrally formed, and the upper end 11 and the lower end 12 are integrally formed by firing, so that the structure is reliable, the heat transfer efficiency is high, and the atomization effect is good.
The upper end 11 extends towards two sides to form an extension step 113, the silica gel sleeve 2 is coated on the extension step 113, the extension step 113 can increase the area of the upper end 11, and the effect is better in use.
A rapid heat transfer part 114 is arranged between the upper end part 11 and the lower end part 12, the rapid heat transfer part 114 is composed of metal particles and is integrally formed between the upper end part 11 and the lower end part 12, and the metal particles are used for rapid heat transfer, so that the heat transfer effect is good, and the heat transfer effect is further ensured.
The sealing clamping grooves are formed in the two sides, close to the upper end 11, of the lower end 12, the sealing clamping buckles 22 are arranged on the silica gel sleeve 2, the sealing clamping buckles 22 are clamped into the sealing clamping grooves, the sealing clamping grooves and the sealing clamping buckles 22 are matched to ensure the tightness of the structure, and oil leakage is prevented.
The oil guide groove 21 comprises an oil inlet 211 and a labyrinth oil way 212 connected to the oil inlet 211, wherein the labyrinth oil way 212 is provided with an oil inlet hole, the oil inlet hole is communicated to the oil guide cavity 111, and the oil inlet 211 is matched with the labyrinth oil way 212 to guide tobacco tar into the oil inlet hole, so that the tobacco tar is conveniently guided.
The isolation steel sheet 112 extends to the opening position of the oil guiding cavity 111, and a sealing groove is formed in the opening position, the silica gel sleeve 2 is provided with a sealing outer edge 23 corresponding to the sealing groove, and the result oil guiding is guaranteed to enter the oil guiding cavity 111 through the matching of the sealing outer edge 23, so that the whole structure is reliable, and the practicability is strong.
The heating component 3 comprises a power receiving sheet 31 and a heating lead 32 connected to the power receiving sheet 31, wherein the power receiving sheet 31 and the heating lead 32 are integrally fired on the lower surface of the lower end portion 12, and the power receiving sheet 31 is matched with the heating lead 32 for heat transfer so as to ensure atomization of tobacco tar.
The electric connection pins 311 are welded on the electric connection sheet 31, the electric connection pins 311 extend downwards, the electric connection pins 311 are sheet pins or columnar pins, and sheet or columnar pins are selected for use according to the use environment, so that the electric connection sheet is convenient to use and reliable in structure.
The heating element 1 is provided with the heating element 3, and is internally provided with the first micropores and the second micropores, and micropores with different sizes are adopted, so that the effect is better in the atomization process, the problem of insufficient oil supply is avoided, and the use effect is improved; in addition, set up the cooperation of keeping apart the steel sheet 112, can realize the isolation, prevent too much tobacco tar and get into inside, influence the taste, also promote the efficiency of generating heat simultaneously, stable in structure is reliable. Specifically, set up heat-generating body 1, the outside silica gel cover 2 of heat-generating body 1 is located to the cover and locate the heating element 3 of heat-generating body 1 bottom, heat-generating body 1 includes upper end 11 and lower tip 12, silica gel cover 2 will upper end 11 cladding, oil guide chamber 111 has been seted up to upper end 11, silica gel cover 2 corresponds oil guide chamber 111 and is equipped with oil groove 21, oil groove 21 communicates to oil guide chamber 111, oil guide chamber 111 is integrative to be fired has the isolation steel sheet 112, a plurality of oil guide holes have been seted up to the isolation steel sheet 112, upper end 11 equipartition has first micropore, lower tip 12 equipartition has the second micropore, the aperture of first micropore is greater than the aperture of second micropore. By adopting micropores with different apertures, tobacco tar particles with different volumes can pass through, and when the types of the tobacco tar components are enough, the tobacco tar atomization taste is better and richer.
The preparation method of the rapid heating porous ceramic atomizing core comprises the following steps: step S1, preparing a jig of a heating body 1, placing steel powder into the jig of the heating body 1, and forming a hot plate; step S2, preparing a material with a lower end 12 formed, wherein the material comprises a ceramic aggregate and a sintering aid for drying; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix, a binder and a dispersing agent to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain a granular ceramic feed; injecting the granular ceramic feed into a fixture of a heating body 1, and connecting the granular ceramic feed with a hot plate to form a lower end 12 green body; step S3, dispersing and putting metal particles on the surface of the green body at the lower end part 12; step S4, preparing a molding material of the upper end part 11, wherein the step comprises the steps of drying ceramic aggregate and a sintering aid; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix, a binder and a dispersing agent to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain a granular ceramic feed, injecting the granular ceramic feed into a jig of the heating body 1 to cover metal particles on the surface of a green body of the lower end part 12 to form a green body of the upper end part 11, and forming the green body of the heating body 1 by the green body of the upper end part 11 and the green body of the lower end part 12; s5, placing steel powder on the surface of the heating element 1 green compact, pressing the steel powder on the surface of the heating element 1 green compact through a heating element 1 jig to form an isolation steel sheet 112, and synchronously forming oil guide holes; step S6, taking out the heating element 1 green compact from the heating element 1 jig, and degreasing the taken heating element 1 green compact under the condition of embedding powder of calcined alumina under the preset degreasing condition; and sintering the ceramic blank obtained by degreasing under the atmospheric condition under the preset sintering condition to obtain the rapid heating porous ceramic atomization core. The whole manufacturing process is simple, the metal particles are combined in the heating body 1, and the efficiency and the stability are higher when the heating body is matched with the heating component 3 to generate heat.
In this example, the particle size of the calcined alumina is 30 to 100. Mu.m, and the condition for embedding the calcined alumina is that the depth of embedding the powder is 5 to 6cm.
In this example, the degreasing conditions were: the temperature is raised from room temperature to 120-200 ℃ at a heating rate of 0.3-1.1 ℃/min for 1.0-1.5 h, then is raised to 220-280 ℃ at a heating rate of 0.15-0.4 ℃/min, is raised to 400-560 ℃ at a heating rate of 0.4-0.6 ℃/min for 1.0-3.5 h, is raised to 800-900 ℃ at a heating rate of 1.4-3.6 ℃/min for 0.3-1.8 h, and is finally cooled along with a furnace.
In this example, the sintering conditions were: heating from room temperature to 800-960 ℃ at a heating rate of 3-8 ℃/min for 0.3-1.8 h, then heating to 1000-1300 ℃ at a heating rate of 1.6-2.8 ℃/min for 1.2-2.8 h, and finally cooling with a furnace;
in the embodiment, in the step S2, the drying treatment condition is that the drying is carried out for 2-4 hours at 100-150 ℃; the mixing condition is that mixing is carried out for 3-5 hours at the temperature of 90-160 ℃; the injection temperature in injection molding is 50-70 ℃.
The process of the premix is that the total amount of the premix is 100 percent, the mass percentage of the ceramic aggregate is 55 to 70 percent, the mass percentage of the sintering aid is 20 to 25 percent, and the mass percentage of the pore-forming agent is 10 to 20 percent;
in the embodiment, in the step S4, the drying treatment condition is that the drying is carried out for 2-3 hours at 100-150 ℃; the mixing condition is that mixing is carried out for 2-3 hours at the temperature of 80-150 ℃; the injection temperature in injection molding is 40-80 ℃;
the process of the premix is that the total amount of the premix is 100%, the mass percentage of the ceramic aggregate is 45-60%, the mass percentage of the sintering aid is 20-25%, and the mass percentage of the pore-forming agent is 20-30%.
In this embodiment, the ceramic aggregate is at least one of diatomite, feldspar and quartz sand; the sintering aid is at least one of low-temperature lead-free glass powder, kaolin and tourmaline; the binder is at least one of paraffin wax, beeswax, palm wax and polyethylene; the pore-forming agent is at least one of polymethyl methacrylate, polyvinyl alcohol and polystyrene; the dispersing agent is stearic acid.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. The utility model provides a quick porous ceramic atomizing core that generates heat for electron cigarette which characterized in that: the heating element comprises an upper end and a lower end, wherein the upper end is covered by the silica gel sleeve, an oil guiding cavity is formed in the upper end, an oil guiding groove is formed in the silica gel sleeve corresponding to the oil guiding cavity, the oil guiding groove is communicated to the oil guiding cavity, an isolating steel sheet is integrally fired in the oil guiding cavity, a plurality of oil guiding holes are formed in the isolating steel sheet, first micropores are uniformly distributed in the upper end, second micropores are uniformly distributed in the lower end, and the aperture of the first micropores is larger than that of the second micropores;
a rapid heat transfer part is arranged between the upper end part and the lower end part, is composed of metal particles and is integrally formed between the upper end part and the lower end part;
the preparation method of the rapid heating porous ceramic atomizing core comprises the following steps:
step S1, preparing a heating body jig, placing steel powder into the heating body jig, and forming a hot plate;
s2, preparing a material with a formed lower end part, wherein the material comprises ceramic aggregate and a sintering aid for drying; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix, a binder and a dispersing agent to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain a granular ceramic feed; injecting the granular ceramic feed into a heating body jig, and connecting the granular ceramic feed with a heating sheet to form a lower end green body;
s3, dispersing and putting metal particles on the surface of the green compact at the lower end part;
s4, preparing a molding material of the upper end part, wherein the step comprises the steps of drying ceramic aggregate and a sintering aid; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix, a binder and a dispersing agent to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain a granular ceramic feed, injecting the granular ceramic feed into a heating body jig to cover metal particles on the surface of a lower end green body to form an upper end green body, and forming a heating body green body by the upper end green body and the lower end green body;
s5, placing steel powder on the surface of the heating element green compact, pressing the steel powder by a heating element jig, forming an isolation steel sheet on the surface of the heating element green compact, and synchronously forming oil guide holes;
step S6, taking the heating element green compact out of the heating element jig, and degreasing the taken heating element green compact under the condition of embedding powder of calcined alumina under the preset degreasing condition; sintering the ceramic blank obtained by degreasing under the atmospheric condition under the preset sintering condition to obtain the rapid heating porous ceramic atomization core;
the particle size of the calcined alumina is 30-100 mu m, and the condition of embedding the powder of the calcined alumina is that the depth of embedding the powder is 5-6 cm;
the degreasing conditions are as follows: heating from room temperature to 120-200 ℃ at a heating rate of 0.3-1.1 ℃/min for 1.0-1.5 h, heating to 220-280 ℃ at a heating rate of 0.15-0.4 ℃/min, heating to 400-560 ℃ at a heating rate of 0.4-0.6 ℃/min for 1.0-3.5 h, heating to 800-900 ℃ at a heating rate of 1.4-3.6 ℃/min for 0.3-1.8 h, and finally cooling along with a furnace;
the sintering conditions are as follows: heating from room temperature to 800-960 ℃ at a heating rate of 3-8 ℃/min for 0.3-1.8 h, then heating to 1000-1300 ℃ at a heating rate of 1.6-2.8 ℃/min for 1.2-2.8 h, and finally cooling with a furnace;
in the step S2, the drying treatment condition is that the drying is carried out for 2-4 hours at 100-150 ℃; the mixing condition is that mixing is carried out for 3-5 hours at the temperature of 90-160 ℃; the injection temperature in injection molding is 50-70 ℃;
the process of the premix is that the total amount of the premix is 100 percent, the mass percentage of the ceramic aggregate is 55 to 70 percent, the mass percentage of the sintering aid is 20 to 25 percent, and the mass percentage of the pore-forming agent is 10 to 20 percent;
in the step S4, the drying treatment condition is that the drying is carried out for 2-3 hours at 100-150 ℃; the mixing condition is that mixing is carried out for 2-3 hours at the temperature of 80-150 ℃; the injection temperature in injection molding is 40-80 ℃;
the process of the premix is that the total amount of the premix is 100%, the mass percentage of the ceramic aggregate is 45-60%, the mass percentage of the sintering aid is 20-25%, and the mass percentage of the pore-forming agent is 20-30%;
the ceramic aggregate is at least one of diatomite, feldspar and quartz sand; the sintering aid is at least one of low-temperature lead-free glass powder, kaolin and tourmaline; the binder is at least one of paraffin wax, beeswax, palm wax and polyethylene; the pore-forming agent is at least one of polymethyl methacrylate, polyvinyl alcohol and polystyrene; the dispersing agent is stearic acid.
2. The rapid heating porous ceramic atomizing core for an electronic cigarette according to claim 1, wherein: the heating body is a ceramic heating body, and the upper end part and the lower end part are integrally formed.
3. The rapid heating porous ceramic atomizing core for electronic cigarettes according to claim 2, wherein: the upper end extends towards two sides to form an extension step, and the silica gel sleeve is coated on the extension step.
4. The rapid heating porous ceramic atomizing core for electronic cigarettes according to claim 3, wherein: the lower end is close to the upper end and both sides are provided with sealing clamping grooves, the silica gel sleeve is provided with sealing buckles, and the sealing buckles are clamped into the sealing clamping grooves.
5. The rapid heating porous ceramic atomizing core for electronic cigarettes according to claim 4, wherein: the oil guide groove comprises an oil inlet and a labyrinth oil way connected with the oil inlet, wherein the labyrinth oil way is provided with an oil inlet hole, and the oil inlet hole is communicated to the oil guide cavity.
6. The rapid heating porous ceramic atomizing core for an electronic cigarette according to claim 5, wherein: the isolation steel sheet extends to the opening position of the oil guiding cavity, a sealing groove is formed in the opening position, and a sealing outer edge is arranged on the silica gel sleeve corresponding to the sealing groove.
7. The rapid heating porous ceramic atomizing core for an electronic cigarette according to claim 6, wherein: the heating component comprises a power connection sheet and a heating lead connected to the power connection sheet, and the power connection sheet and the heating lead are uniformly fired on the lower surface of the lower end part.
8. The rapid heating porous ceramic atomizing core for an electronic cigarette according to claim 7, wherein: the electric connection pins extend downwards, and are sheet pins or columnar pins.
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| CN113876041A (en) * | 2021-09-22 | 2022-01-04 | 深圳市克莱鹏科技有限公司 | Heating sheet and electronic cigarette |
| CN114532610A (en) * | 2022-02-09 | 2022-05-27 | 深圳市克莱鹏科技有限公司 | Electronic cigarette based on porous silicon atomization sheet |
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