CN113349451A - Electronic cigarette ceramic heating body based on open pore firing forming and preparation method - Google Patents
Electronic cigarette ceramic heating body based on open pore firing forming and preparation method Download PDFInfo
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- CN113349451A CN113349451A CN202110653589.5A CN202110653589A CN113349451A CN 113349451 A CN113349451 A CN 113349451A CN 202110653589 A CN202110653589 A CN 202110653589A CN 113349451 A CN113349451 A CN 113349451A
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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
- A24F40/70—Manufacture
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Abstract
The invention relates to the technical field of electronic cigarette ceramic atomizing cores, in particular to an electronic cigarette ceramic heating body formed by opening firing and a preparation method thereof, wherein the electronic cigarette ceramic heating body comprises a ceramic body, a silica gel sleeve, a heating assembly and a base, the ceramic body consists of an oil immersion part and an atomizing part, the oil immersion part and the atomizing part are integrally formed, the silica gel sleeve coats the oil immersion part, the outer diameter ring of the atomizing part is annularly provided with a spiral groove, the heating assembly comprises a heating lead sintered in the spiral groove, and the heating lead is connected with an electric connection pin; according to the invention, the oil inlet hole is formed in the oil immersion part and matched with the atomization hole to enter the tobacco tar for heating atomization, and the heating lead is wound on the atomization part in a spiral groove mode, so that the atomization efficiency is higher and the stability is better in the heating process.
Description
Technical Field
The invention relates to the technical field of electronic cigarette ceramic atomizing cores, in particular to an electronic cigarette ceramic heating body based on open pore firing forming and a preparation method thereof.
Background
The electronic cigarette is mainly used for quitting and replacing cigarettes, can simulate the taste of the cigarettes, but can not release tar, nicotine and second-hand smoke harmful to human bodies when the electronic cigarette is smoked, and can improve the smoking quitting success rate of nicotine replacement therapy, so that the electronic cigarette is popular in the market and is valued by the nation soon. The electronic atomized cigarette has the principle that a smoke agent is heated and gasified on an electric heating element of an atomization system to form high-temperature steam and the high-temperature steam is sprayed out of an opening end, and the sprayed steam expands and condenses into smoke-shaped micro liquid drops in the atmosphere, so that smoke similar to the traditional cigarette is formed.
Wherein, atomizing core is one of the key parts of electron cigarette, and current atomizing core is including cotton core atomizing, ceramic atomizing and ultrasonic atomization, and the effect is all with tobacco tar heating atomizing. The existing ceramic electronic cigarette atomizer has the defects that the heating sheet is single in structure, the stability is poor in the heating and atomizing process, the heating and atomizing efficiency is low, and the problem that the mouth feel is poor is further improved.
Disclosure of Invention
In order to solve the problems, the invention provides the ceramic heating body for the electronic cigarette based on the open-pore firing forming and the preparation method, wherein the oil inlet hole is formed in the oil immersion part and matched with the atomization hole to enter the tobacco tar for heating and atomization, and the heating lead is wound on the atomization part in a spiral groove mode.
The technical scheme adopted by the invention is as follows: the utility model provides a fashioned electron cigarette ceramic heat-generating body is fired based on trompil, includes ceramic body, silica gel cover, heating element and base, the ceramic body comprises immersion oil portion and atomizing portion, immersion oil portion and atomizing portion integrated into one piece, the silica gel cover will immersion oil portion cladding, the helicla flute has been seted up to atomizing portion external diameter hoop, heating element is including sintering the lead wire that generates heat in the helicla flute, the lead wire that generates heat is connected with connects the electricity pin.
The further improvement to the above scheme is that the oil inlet hole has been seted up to the oil immersion portion, the inside atomizing hole that has seted up of atomizing portion, atomizing hole and oil inlet hole intercommunication.
The further improvement of the scheme is that the oil immersion part is uniformly provided with first micropores, the atomization part is uniformly provided with second micropores, and the aperture of the first micropores is larger than that of the second micropores.
The further improvement of the scheme is that the aperture size of the oil inlet is larger than that of the atomization hole.
The further improvement of the scheme is that the surface of the silica gel sleeve is provided with an oil guide groove, and the oil guide groove is communicated to the oil inlet hole.
The further improvement of the scheme is that the silica gel sleeve is provided with a plurality of groups of sealing outer edges.
The further improvement of the scheme is that the base comprises a supporting frame connected with the bottom plate of the atomizing part and connecting plates connected with two sides of the supporting frame.
The further improvement of the scheme is that the bottom of the support frame corresponding to the atomization part is provided with a cavity.
The power connection pin is welded on the heating lead wire, and is provided with a bent pin which is bent downwards and extends.
A preparation process of an electronic cigarette ceramic heating body based on open pore firing forming comprises the following steps:
step S1, preparing an atomizing part, preparing a material for forming the atomizing part, and drying ceramic aggregate and sintering aid; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix with a binder and a dispersant to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain granular ceramic feed; injecting the granular ceramic feed into a ceramic jig to form an atomization part green body; forming a spiral groove while forming the green compact of the atomization part;
step S2, preparing an oil immersion part, and preparing a molding material of the oil immersion part, wherein the step comprises the step of drying ceramic aggregate and sintering aid; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix with a binder and a dispersant to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain a granular ceramic feed, forming an oil immersion part green body, and forming a ceramic body green body by the oil immersion part green body and the oil immersion part green body;
step S3, injecting steel solution fluid into the spiral groove, and waiting for the steel solution fluid to cool to form a heating lead;
step S4, taking out the ceramic body green body from the ceramic body jig, and carrying out degreasing treatment on the taken-out ceramic green body under the condition of calcining the embedded powder of alumina and under the preset degreasing condition; and sintering the degreased ceramic blank under the atmospheric condition under the preset sintering condition to obtain the ceramic atomizing core.
The further improvement of the scheme is that the particle size of the calcined alumina is 30-100 mu m, and the powder burying condition of the calcined alumina is that the powder burying depth is 5-6 cm.
The scheme is further improved in that the degreasing conditions are as follows: heating from room temperature to 120-200 ℃ at a heating rate of 0.3-1.1 ℃/min, preserving heat for 1.0-1.5 h, then 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, preserving heat for 1.0-3.5 h, then heating to 800-900 ℃ at a heating rate of 1.4-3.6 ℃/min, preserving heat for 0.3-1.8 h, and finally cooling with a furnace.
The scheme is further improved in that the sintering conditions are as follows: heating from room temperature to 800-960 ℃ at a heating rate of 3-8 ℃/min, preserving heat for 0.3-1.8 h, then heating to 1000-1300 ℃ at a heating rate of 1.6-2.8 ℃/min, preserving heat for 1.2-2.8 h, and finally cooling along with the furnace.
The scheme is further improved in that in the step S2, the drying treatment is carried out for 2-4h at the temperature of 100-150 ℃; the mixing condition is mixing for 3-5h at 90-160 ℃; the injection temperature in the injection molding is 50-70 ℃;
the process of the premix comprises the following steps of taking the total amount of the premix as 100%, wherein the mass percent of the ceramic aggregate is 55-70%, the mass percent of the sintering aid is 20-25%, and the mass percent of the pore-forming agent is 10-20%.
The scheme is further improved in that in the step S4, the drying treatment is carried out for 2-3h at the temperature of 100-150 ℃; the mixing condition is mixing for 2-3h at 80-150 ℃; the injection temperature in the injection molding is 40-80 ℃.
The technical scheme is further improved in that the process of the premix comprises the following steps of taking the total amount of the premix as 100%, wherein the mass percent of the ceramic aggregate is 45-60%, the mass percent of the sintering aid is 20-25%, and the mass percent of the pore-forming agent is 20-30%.
The scheme is further improved in that 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, beeswax, carnauba wax and polyethylene; the pore-forming agent is at least one of polymethyl methacrylate, polyvinyl alcohol and polystyrene; the dispersant is stearic acid.
The invention has the beneficial effects that:
compared with the traditional ceramic heating body, the ceramic heating body adopts the open pore structure, the oil inlet hole is formed in the oil immersion part and matched with the atomization hole to enter the tobacco tar for heating atomization, the atomization effect is good, the structure is simple and reliable, meanwhile, the heating lead is wound on the atomization part in a spiral groove mode, the atomization efficiency is higher in the heating process, and the stability is better. Specifically, set up ceramic body, silica gel cover, heating element and base, the ceramic body comprises immersion oil portion and atomizing portion, immersion oil portion and atomizing portion integrated into one piece, the silica gel cover will immersion oil portion cladding, the helicla flute has been seted up to atomizing portion external diameter hoop, heating element is including sintering the lead wire that generates heat in the helicla flute, the lead wire that generates heat is connected with and connects the electricity pin. The silica gel sleeve is matched with the base to be used for fixing the ceramic body, so that the stability of the electronic cigarette is convenient to use, the installation is convenient, the heating lead is arranged on the outer edge of the atomization part in a spiral winding mode, the stability is better in the heating atomization process, and the uniformity is stronger.
The preparation process of the electronic cigarette ceramic heating body based on open-pore firing forming comprises the specific processes of preparing an atomizing part and preparing a material for forming the atomizing part, wherein the process comprises the step 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 with a binder and a dispersant to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain granular ceramic feed; injecting the granular ceramic feed into a ceramic jig to form an atomization part green body; forming a spiral groove while forming the green compact of the atomization part; preparing an oil immersion part, and preparing a forming material of the oil immersion part, wherein the forming material comprises ceramic aggregate and a sintering aid which are dried; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix with a binder and a dispersant to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain a granular ceramic feed, forming an oil immersion part green body, and forming a ceramic body green body by the oil immersion part green body and the oil immersion part green body; injecting steel solution fluid into the spiral groove, and waiting for the steel solution fluid to be cooled to form a heating lead; taking out the ceramic body green body from the ceramic body jig, and carrying out degreasing treatment on the taken-out ceramic green body under the condition of powder embedding of calcined alumina under the preset degreasing condition; and sintering the degreased ceramic blank under the atmospheric condition under the preset sintering condition to obtain the ceramic atomizing core. The ceramic is formed twice and then fired, the steel solution fluid is injected into the spiral groove and finally sintered into a whole, the integrity is strong, the atomization effect is good in the heating atomization process, and the structure is reliable.
Drawings
FIG. 1 is a schematic illustration of an explosive structure according to the present invention;
FIG. 2 is a schematic diagram of an exploded view 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 A-A of FIG. 3;
FIG. 5 is a schematic view of a manufacturing process flow of the present invention.
Description of reference numerals: the ceramic body 1, the oil immersion part 11, the oil inlet hole 111, the atomization part 12, the atomization hole 121, the silica gel sleeve 2, the oil guide groove 21, the sealing outer edge 22, the heating component 3, the heating lead 31, the electric connection pin 32, the bent pin 321, the base 4, the support frame 41, the clearance 411 and the connecting plate 42.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying 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 "secured 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 in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1-5, a fashioned electron cigarette ceramic heating body is fired based on trompil, including ceramic body 1, silica gel cover 2, heating element 3 and base 4, ceramic body 1 comprises immersion oil portion 11 and atomizing portion 12, immersion oil portion 11 and atomizing portion 12 integrated into one piece, silica gel cover 2 will immersion oil portion 11 cladding, the helicla flute has been seted up to 12 external diameter rings of atomizing portion, heating element 3 is including sintering in the heating lead wire 31 of helicla flute, heating lead wire 31 is connected with and connects electric pin 32.
The aperture size of the oil inlet 111 is larger than that of the atomization holes 121, and the smaller atomization holes 121 are adopted, so that too much tobacco tar is prevented from being introduced, and the atomization effect and the use effect are ensured.
The 11 equipartitions of immersion oil portion have first micropore, 12 equipartitions of atomizing portion have the second micropore, first micropore aperture is greater than the micropore aperture of second, adopts the micropore in different apertures, and the tobacco tar granule composition of the different volumes of accessible, when tobacco tar composition kind is enough many, the tobacco tar atomizing taste is better abundant.
The silica gel cover 2 is provided with a plurality of groups of sealing outer edges 22, and the sealing outer edges 22 are used for sealing the outer edges, so that the liquid leakage phenomenon is prevented after installation.
Connect electric pin 32 to weld in heating lead 31, connect electric pin 32 to be equipped with the bent foot 321, the bent foot 321 bends down and extends, and heating lead 31 cooperates the bent foot 321 to be used for connecing the electricity, and convenient electrically conductive.
A preparation process of an electronic cigarette ceramic heating body based on open pore firing forming comprises the following steps:
step S1, preparing the atomizing part 12, preparing the material for forming the atomizing part 12, including drying the ceramic aggregate and the sintering aid; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix with a binder and a dispersant to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain granular ceramic feed; injecting the granular ceramic feed into a ceramic jig and connecting the granular ceramic feed with a hot plate to form an atomization part 12 green body; forming a spiral groove while forming a green compact of the atomizing area 12;
step S2, preparing the oil immersion part 11, preparing the molding material of the oil immersion part 11, including drying the ceramic aggregate and the sintering aid; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix with a binder and a dispersant to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain a granular ceramic feed, injecting the granular ceramic feed into a ceramic jig to cover metal granules on the surface of the green body of the oil immersion part 11 to form a green body of the oil immersion part 11, and forming the green body of the ceramic body 1 by the green body of the oil immersion part 11 and the green body of the oil immersion part 11;
step S3, injecting a steel solution fluid into the spiral groove, and waiting for the steel solution fluid to cool to form a heating lead 31;
step S4, taking out the ceramic body 1 green body from the ceramic body 1 jig, and carrying out degreasing treatment on the taken-out ceramic green body under the condition of calcining the embedded powder of alumina and under the preset degreasing condition; and sintering the degreased ceramic blank under the atmospheric condition under the preset sintering condition to obtain the ceramic atomizing core.
In the embodiment, the particle size of the calcined alumina is 30-100 μm, and the powder burying condition of the calcined alumina is that the powder burying depth is 5-6 cm.
In this example, the degreasing conditions were: heating from room temperature to 120-200 ℃ at a heating rate of 0.3-1.1 ℃/min, preserving heat for 1.0-1.5 h, then 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, preserving heat for 1.0-3.5 h, then heating to 800-900 ℃ at a heating rate of 1.4-3.6 ℃/min, preserving heat for 0.3-1.8 h, and finally cooling 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, preserving heat for 0.3-1.8 h, then heating to 1000-1300 ℃ at a heating rate of 1.6-2.8 ℃/min, preserving heat for 1.2-2.8 h, and finally cooling along with the furnace.
In the present embodiment, in step S2, the drying process is performed at 100 to 150 ℃ for 2 to 4 hours; the mixing condition is mixing for 3-5h at 90-160 ℃; the injection temperature in the injection molding is 50-70 ℃;
the process of the premix comprises the following steps of taking the total amount of the premix as 100%, wherein the mass percent of the ceramic aggregate is 55-70%, the mass percent of the sintering aid is 20-25%, and the mass percent of the pore-forming agent is 10-20%.
In the present embodiment, in step S4, the drying process is performed at 100 to 150 ℃ for 2 to 3 hours; the mixing condition is mixing for 2-3h at 80-150 ℃; the injection temperature in the injection molding is 40-80 ℃;
the process of the premix comprises the following steps of taking the total amount of the premix as 100%, wherein the mass percent of the ceramic aggregate is 45-60%, the mass percent of the sintering aid is 20-25%, and the mass percent of the pore-forming agent is 20-30%.
In the 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, beeswax, carnauba wax and polyethylene; the pore-forming agent is at least one of polymethyl methacrylate, polyvinyl alcohol and polystyrene; the dispersant is stearic acid.
The invention adopts the open pore structure, the oil inlet hole 111 is arranged on the oil immersion part 11 and is matched with the atomization hole 121 to enter the tobacco tar for heating atomization, the atomization effect is good, the structure is simple and reliable, meanwhile, the heating lead 31 is wound on the atomization part 12 in a spiral groove mode, the atomization efficiency is higher in the heating process, and the stability is better. Specifically, set up ceramic body 1, silica gel cover 2, heating element 3 and base 4, ceramic body 1 comprises immersion oil portion 11 and atomizing portion 12, immersion oil portion 11 and atomizing portion 12 integrated into one piece, silica gel cover 2 will immersion oil portion 11 cladding, the helicla flute has been seted up to 12 external diameter rings of atomizing portion, heating element 3 is including sintering in the heating lead 31 of helicla flute, heating lead 31 is connected with and connects electric pin 32. Through 2 cooperation bases 4 of silica gel cover for the fixed mounting of ceramic body 1, the stability when the electron cigarette uses of convenience, simple to operate will generate heat lead wire 31 simultaneously and adopt the spiral winding mode to locate the outer edge of atomizing portion 12, and atomizing in-process stability is better generating heat, and the homogeneity is stronger.
The preparation process of the electronic cigarette ceramic heating body based on open-pore firing forming comprises the specific processes of preparing an atomizing part 12 and preparing a material for forming the atomizing part 12, wherein the preparation process 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 with a binder and a dispersant to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain granular ceramic feed; injecting the granular ceramic feed into a ceramic jig and connecting the granular ceramic feed with a hot plate to form an atomization part 12 green body; forming a spiral groove while forming a green compact of the atomizing area 12; preparing an oil immersion part 11, and preparing a forming material of the oil immersion part 11, wherein the forming material comprises ceramic aggregate and sintering aid which are dried; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix with a binder and a dispersant to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain a granular ceramic feed, injecting the granular ceramic feed into a ceramic jig to cover metal granules on the surface of the green body of the oil immersion part 11 to form a green body of the oil immersion part 11, and forming the green body of the ceramic body 1 by the green body of the oil immersion part 11 and the green body of the oil immersion part 11; injecting a steel solution fluid into the spiral groove, and waiting for the steel solution fluid to cool to form a heating lead 31; taking out the ceramic body 1 green body from the ceramic body 1 jig, and carrying out degreasing treatment on the taken-out ceramic green body under the condition of calcining the embedded powder of alumina under the preset degreasing condition; and sintering the degreased ceramic blank under the atmospheric condition under the preset sintering condition to obtain the ceramic atomizing core. The ceramic is formed twice and then fired, the steel solution fluid is injected into the spiral groove and finally sintered into a whole, the integrity is strong, the atomization effect is good in the heating atomization process, and the structure is reliable.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides an electron cigarette ceramic heating body based on shaping is fired to trompil which characterized in that: including ceramic body, silica gel cover, heating element and base, the ceramic body comprises immersion oil portion and atomizing portion, immersion oil portion and atomizing portion integrated into one piece, the silica gel cover will immersion oil portion cladding, the helicla flute has been seted up to atomizing portion external diameter hoop, heating element is including sintering the lead wire that generates heat in the helicla flute, the lead wire that generates heat is connected with and connects the electricity pin.
2. The open-pore firing-based formed ceramic heater for electronic cigarettes according to claim 1, characterized in that: the oil inlet has been seted up to the portion that soaks oil, the inside atomizing hole of having seted up of atomizing portion, atomizing hole and inlet port intercommunication.
3. The open-pore firing-based formed ceramic heater for electronic cigarettes according to claim 2, characterized in that: the oil immersion part is uniformly provided with first micropores, the atomization part is uniformly provided with second micropores, and the aperture of each first micropore is larger than that of each second micropore.
4. The open-pore firing-based formed ceramic heater for electronic cigarettes according to claim 3, wherein: the aperture size of the oil inlet is larger than that of the atomization hole.
5. The open-pore firing-based formed ceramic heater for electronic cigarettes according to claim 4, wherein: the surface of the silica gel sleeve is provided with an oil guide groove, and the oil guide groove is communicated to the oil inlet hole.
6. The open-pore firing-based formed ceramic heater for electronic cigarettes according to claim 5, wherein: the silica gel cover is equipped with the sealed outer edge of a plurality of groups.
7. The open-pore firing-based formed ceramic heater for electronic cigarettes according to claim 6, wherein: the base comprises a supporting frame connected to the bottom plate of the atomizing part and connecting plates connected to two sides of the supporting frame.
8. The open-pore firing-based formed ceramic heater for electronic cigarettes according to claim 7, characterized in that: the bottom of the supporting frame corresponding to the atomizing part is provided with a cavity.
9. The open-pore firing-based formed ceramic heater for electronic cigarettes according to claim 8, wherein: connect the electric pin to weld in the lead wire that generates heat, connect the electric pin and be equipped with the dog-leg, the dog-leg bends down the extension.
10. The preparation process of the ceramic heating element for the electronic cigarette based on open pore firing forming as claimed in any one of claims 1 to 9, characterized in that: the method comprises the following steps:
step S1, preparing an atomizing part, preparing a material for forming the atomizing part, and drying ceramic aggregate and sintering aid; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix with a binder and a dispersant to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain granular ceramic feed; injecting the granular ceramic feed into a ceramic jig to form an atomization part green body; forming a spiral groove while forming the green compact of the atomization part;
step S2, preparing an oil immersion part, and preparing a molding material of the oil immersion part, wherein the step comprises the step of drying ceramic aggregate and sintering aid; mixing the dried ceramic aggregate, the sintering aid and the pore-forming agent to obtain a premix; mixing the premix with a binder and a dispersant to obtain a mixed ceramic material; granulating the mixed ceramic material to obtain a granular ceramic feed, forming an oil immersion part green body, and forming a ceramic body green body by the oil immersion part green body and the oil immersion part green body;
step S3, injecting steel solution fluid into the spiral groove, and waiting for the steel solution fluid to cool to form a heating lead;
step S4, taking out the ceramic body green body from the ceramic body jig, and carrying out degreasing treatment on the taken-out ceramic green body under the condition of calcining the embedded powder of alumina and under the preset degreasing condition; sintering the degreased ceramic blank under the atmospheric condition under the preset sintering condition to obtain a ceramic atomizing core;
the particle size of the calcined alumina is 30-100 mu m, and the powder burying condition of the calcined alumina is that the powder burying depth 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, preserving heat 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, preserving heat for 1.0-3.5 h, heating to 800-900 ℃ at a heating rate of 1.4-3.6 ℃/min, preserving heat for 0.3-1.8 h, and finally cooling with a furnace;
the sintering conditions are as follows: heating from room temperature to 800-960 ℃ at a heating rate of 3-8 ℃/min, preserving heat for 0.3-1.8 h, then heating to 1000-1300 ℃ at a heating rate of 1.6-2.8 ℃/min, preserving heat for 1.2-2.8 h, and finally cooling along with the furnace;
in the step S2, the drying treatment is carried out for 2-4h at the temperature of 100-150 ℃; the mixing condition is mixing for 3-5h at 90-160 ℃; the injection temperature in the injection molding is 50-70 ℃;
the process of the premix comprises the following steps of taking the total amount of the premix as 100%, wherein the mass percent of the ceramic aggregate is 55-70%, the mass percent of the sintering aid is 20-25%, and the mass percent of the pore-forming agent is 10-20%;
in the step S4, the drying treatment is carried out for 2-3h at the temperature of 100-150 ℃; the mixing condition is mixing for 2-3h at 80-150 ℃; the injection temperature in the injection molding is 40-80 ℃;
the process of the premix comprises the following steps of taking 100% of the total amount of the premix, wherein the mass percent of the ceramic aggregate is 45-60%, the mass percent of the sintering aid is 20-25%, and the mass percent 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, beeswax, carnauba wax and polyethylene; the pore-forming agent is at least one of polymethyl methacrylate, polyvinyl alcohol and polystyrene; the dispersant is stearic acid.
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