CN114538953A - Manufacturing process of heating ceramic atomizing core and heating ceramic atomizing core - Google Patents
Manufacturing process of heating ceramic atomizing core and heating ceramic atomizing core Download PDFInfo
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- CN114538953A CN114538953A CN202210312530.4A CN202210312530A CN114538953A CN 114538953 A CN114538953 A CN 114538953A CN 202210312530 A CN202210312530 A CN 202210312530A CN 114538953 A CN114538953 A CN 114538953A
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- atomizing core
- ceramic atomizing
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- 239000000919 ceramic Substances 0.000 title claims abstract description 94
- 238000010438 heat treatment Methods 0.000 title claims abstract description 61
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 25
- 239000011812 mixed powder Substances 0.000 claims abstract description 17
- 239000011265 semifinished product Substances 0.000 claims abstract description 15
- 238000005245 sintering Methods 0.000 claims abstract description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000011159 matrix material Substances 0.000 claims abstract description 8
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- 238000007747 plating Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000005303 weighing Methods 0.000 claims abstract description 4
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 238000000498 ball milling Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000007569 slipcasting Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000007873 sieving Methods 0.000 claims description 4
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- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 3
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- 239000005642 Oleic acid Substances 0.000 claims description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000006004 Quartz sand Substances 0.000 claims description 3
- 239000004113 Sepiolite Substances 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052810 boron oxide Inorganic materials 0.000 claims description 3
- 238000005219 brazing Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 3
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- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 3
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid group Chemical group C(CCCCCCC\C=C/CCCCCCCC)(=O)O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 229910052624 sepiolite Inorganic materials 0.000 claims description 3
- 235000019355 sepiolite Nutrition 0.000 claims description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 239000011787 zinc oxide Substances 0.000 claims description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 241000208125 Nicotiana Species 0.000 abstract description 16
- 235000002637 Nicotiana tabacum Nutrition 0.000 abstract description 16
- 238000009841 combustion method Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 1
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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
- C04B38/0635—Compounding ingredients
- 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
- A24F47/00—Smokers' requisites not otherwise provided for
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
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- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
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- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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Abstract
The invention discloses a manufacturing process of a heating ceramic atomizing core and the heating ceramic atomizing core, which are used for solving the technical problems that tobacco tar is heated unevenly and the atomizing effect is poor due to the fact that the conventional ceramic atomizing core is heated by a heating wire generally. S1, weighing required materials according to mass percentage, and uniformly mixing the materials to prepare mixed powder; s2, injecting the mixed powder into a mold with a preset shape to prepare a heating ceramic matrix, and drying the heating ceramic matrix for a preset time to form a blank; s3, placing the blank into a sintering bowl, using wax removing powder to wholly submerge the blank, and then placing the blank into a wax removing kiln to remove wax; s4, placing the blank subjected to de-waxing into a high-temperature furnace for high-temperature sintering to obtain a semi-finished product of the heating ceramic atomizing core; and S5, performing surface nickel plating treatment on two ends of the semi-finished product of the heating ceramic atomizing core, and leading out electrodes from the nickel-plated part to obtain the heating ceramic atomizing core.
Description
Technical Field
The invention relates to the technical field of manufacturing of ceramic atomizing cores, in particular to a manufacturing process of a heating ceramic atomizing core and the heating ceramic atomizing core.
Background
At present traditional electron smog spinning disk atomiser generally heats the atomizing with ceramic atomizing core cooperation heating wire to the tobacco tar, specifically, the heater strip can twine the surface at ceramic atomizing core through winding mode, and when the tobacco tar entered into ceramic atomizing core, the heater strip just heated the atomizing to the tobacco tar that oozes to be inhaled by the consumer and use.
In foretell structure, the heater strip combines through winding mode and ceramic atomizing core, because heater strip and ceramic atomizing core area of contact are little, appears the contact easily not in place, leads to the heating inhomogeneous, forms the local dry combustion method condition, seriously influences the atomizing taste of tobacco tar.
Therefore, the search for a process for producing a heat-generating ceramic atomizing core and a heat-generating ceramic atomizing core that can solve the above-mentioned technical problems have been important issues to be studied by those skilled in the art.
Disclosure of Invention
The embodiment of the invention discloses a manufacturing process of a heating ceramic atomizing core and the heating ceramic atomizing core, which are used for solving the technical problems that the conventional ceramic atomizing core is heated by a heating wire generally, so that tobacco tar is heated unevenly and the atomizing effect is poor.
The embodiment of the invention provides a manufacturing process of a heating ceramic atomizing core, which comprises the following steps:
s1, weighing 40-60% of diatomite, 10-20% of resistance powder, 5-10% of sepiolite, 5-10% of alumina, 2-5% of silicon dioxide, 5-10% of quartz sand, 1-3% of zinc oxide, 0.5-1% of boron oxide, 1-3% of magnesium oxide, 10-20% of pore-forming agent, 5-10% of paraffin and 0.3-1% of surfactant according to mass percentage, and uniformly mixing the materials to prepare mixed powder;
s2, injecting the mixed powder into a mold with a preset shape in a slip casting mode to prepare a heating ceramic matrix, and drying the heating ceramic matrix for a preset time to form a blank;
s3, placing the blank body into a sintering bowl, using wax removing powder to wholly submerge the blank body, and then placing the blank body into a wax removing kiln to remove wax according to the preset temperature and time;
s4, placing the blank subjected to wax removal into a high-temperature furnace, and performing high-temperature sintering according to preset temperature and time to obtain a semi-finished product of the heating ceramic atomizing core;
and S5, performing surface nickel plating treatment on two ends of the semi-finished product of the heating ceramic atomizing core, and performing brazing leading-out electrodes on the nickel-plated part to obtain the heating ceramic atomizing core.
Optionally, the resistance powder is one or more of silicon carbide, graphene and stainless steel particles.
Optionally, the pore-forming agent is one or more of starch, acrylic, epoxy resin, graphite, and cotton.
Optionally, the surfactant is oleic acid or stearic acid.
Optionally, the step S1 further includes:
and adding the mixed powder into grinding balls for ball milling for a preset time, and sieving the mixed powder subjected to ball milling through a screen.
Optionally, in step S3, the blank is entirely buried with the dewaxing powder, and then placed into a dewaxing kiln to be dewaxed at a temperature of 200 to 700 ℃ for 10 to 30 hours.
Optionally, in step S4, the blank body with the wax removed is placed into a high temperature furnace, and high temperature sintering is performed at a temperature of 900 ℃ to 1300 ℃ for 8 hours to 20 hours.
Optionally, the step S4 further includes:
and cleaning dust of the semi-finished product of the heating ceramic atomizing core after high-temperature sintering by adopting ultrasonic cleaning equipment.
The embodiment of the invention provides a heating ceramic atomizing core which is prepared by the manufacturing process.
Optionally, the two opposite ends of the heating ceramic atomizing core are both provided with electrodes for electrically connecting with an external power supply.
According to the technical scheme, the embodiment of the invention has the following advantages:
in the embodiment, the heating ceramic atomizing core is prepared by adding resistance powder into a material for preparing the ceramic atomizing core, fully mixing the resistance powder with other materials, and performing slip casting and sintering molding. This ceramic atomizing core generates heat is because inside has the resistance powder, therefore, this ceramic atomizing core generates heat has stronger electrically conductive heating nature, carry out the electricity through external power source and be connected the back with the electrode, the electric current flows behind the resistance powder, make the ceramic atomizing core that generates heat wholly can generate heat, and heat evenly distributed is on the ceramic atomizing core generates heat, when the tobacco tar enters into this ceramic atomizing core that generates heat, the ceramic atomizing core that generates heat can carry out the abundant heating to the tobacco tar, prevent the condition of dry combustion method, make the atomization effect of tobacco tar better, can promote user's experience effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic flow chart of a manufacturing process of a heating ceramic atomizing core provided in an embodiment of the present invention;
FIG. 2 is a schematic structural view of a heat-generating ceramic atomizing core provided in an embodiment of the present invention;
illustration of the drawings: a heating ceramic atomizing core 1; and an electrode 2.
Detailed Description
The embodiment of the invention discloses a manufacturing process of a heating ceramic atomizing core and the heating ceramic atomizing core, which are used for solving the technical problems that tobacco tar is heated unevenly and the atomizing effect is poor due to the fact that the conventional ceramic atomizing core is heated by a heating wire generally.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1 and fig. 2, a manufacturing process of a heating ceramic atomizing core provided in this embodiment includes the following steps:
s1, weighing 40-60% of diatomite, 10-20% of resistance powder, 5-10% of sepiolite, 5-10% of alumina, 2-5% of silicon dioxide, 5-10% of quartz sand, 1-3% of zinc oxide, 0.5-1% of boron oxide, 1-3% of magnesium oxide, 10-20% of pore-forming agent, 5-10% of paraffin and 0.3-1% of surfactant according to mass percentage, and uniformly mixing the materials to prepare mixed powder;
s2, injecting the mixed powder into a mold with a preset shape in a slip casting mode to prepare a heating ceramic matrix, and drying the heating ceramic matrix for a preset time to form a blank;
it should be noted that the mold with the preset shape may be a cylinder type, a rectangular parallelepiped type, or a square type, and the shape of the mold may be manufactured according to the design shape of the heating ceramic atomizing core, and the specific shape of the mold is not limited in this embodiment. In step S2, the powder mixture is injected into a mold having a predetermined shape by slip casting using a slip casting machine.
S3, placing the blank body into a sintering bowl, using wax removing powder to wholly submerge the blank body, and then placing the blank body into a wax removing kiln to remove wax according to the preset temperature and time;
s4, placing the blank subjected to wax removal into a high-temperature furnace, and performing high-temperature sintering according to preset temperature and time to obtain a semi-finished product of the heating ceramic atomizing core;
and S5, performing surface nickel plating treatment on two ends of the semi-finished product of the heating ceramic atomizing core, and performing brazing leading-out electrodes on the nickel-plated part to obtain the heating ceramic atomizing core.
In step S5, surface nickel plating is performed on both ends of the heat-generating ceramic atomizing core semi-finished product, so that a nickel plating layer is formed on both ends of the heat-generating ceramic atomizing core semi-finished product, and the thickness of the nickel plating layer is 0.08 mm to 0.2 mm.
In the embodiment, the heating ceramic atomizing core is prepared by adding resistance powder into a material for preparing the ceramic atomizing core, fully mixing the resistance powder with other materials, and performing slip casting and sintering molding. This ceramic atomizing core generates heat is because inside has the resistance powder, therefore, this ceramic atomizing core generates heat has stronger electrically conductive heating nature, carry out the electricity through external power source and be connected the back with the electrode, the electric current flows behind the resistance powder, make the ceramic atomizing core that generates heat wholly can generate heat, and heat evenly distributed is on the ceramic atomizing core generates heat, when the tobacco tar enters into this ceramic atomizing core that generates heat, the ceramic atomizing core that generates heat can carry out the abundant heating to the tobacco tar, prevent the condition of dry combustion method, make the atomization effect of tobacco tar better, can promote user's experience effect.
Further, the resistance powder in this embodiment is one or more of silicon carbide, graphene, and stainless steel particles.
The above-mentioned resistance powder materials are all conductive exothermic materials, and the resistance powder materials in this embodiment are not limited to the above-mentioned materials.
Further, the pore-forming agent in this embodiment is one or more of starch, acryl, epoxy, graphite, and cotton.
The pore former is a substance added to the powder mixture, and forms a desired type and number of pores in the final heat-generating ceramic atomizing core by volatilization thereof during sintering. The shape and size of the pore former particles determine the shape and size of the pores of the heat-generating ceramic atomizing core.
Further, the surfactant in this embodiment is oleic acid or stearic acid.
Further, step S1 in this embodiment further includes:
and adding the mixed powder into grinding balls for ball milling for a preset time, and sieving the mixed powder subjected to ball milling through a screen.
Preferably, the mixed powder is sieved by a screen with 200 meshes to 250 meshes.
It should be noted that after the ball milling treatment is performed on the mixed powder by the grinding balls, the materials can be mixed more fully, and the finer mixed powder can be obtained by the sieving treatment through the screen.
Further, in step S3 of this embodiment, the blank is entirely buried with the dewaxing powder, and then placed in a dewaxing kiln to be dewaxed at a temperature of 200 ℃ to 700 ℃ for 10 hours to 30 hours.
Further, in step S4, the blank body with the wax removed is placed into a high temperature furnace and sintered at a temperature of 900 ℃ to 1300 ℃ for 8 hours to 20 hours.
Further, the step S4 further includes:
and cleaning dust of the semi-finished product of the heating ceramic atomizing core after high-temperature sintering by adopting ultrasonic cleaning equipment.
It should be noted that, in order to avoid the dust covering the surface of the heating ceramic atomizing core semi-finished product in the manufacturing process, the surface of the heating ceramic atomizing core semi-finished product can be cleaned by the ultrasonic cleaning device, so as to remove the dust on the surface.
Example two
Referring to fig. 1 and 2, the heating ceramic atomizing core provided in this embodiment is manufactured by the manufacturing process described in the first embodiment.
Furthermore, the two opposite ends of the heating ceramic atomizing core are provided with electrodes electrically connected with an external power supply.
It should be noted that the ceramic atomizing core that generates heat that the preparation technology made through embodiment one has stronger electrically conductive nature that generates heat, carry out the electricity through external power source and electrode and be connected the back, the ceramic atomizing core that generates heat wholly can generate heat to heat evenly distributed is on the ceramic atomizing core that generates heat, when the tobacco tar enters into this ceramic atomizing core that generates heat, the ceramic atomizing core that generates heat can carry out the abundant heating to the tobacco tar, prevent the condition of dry combustion method, make the atomization effect of tobacco tar better, can promote user's experience effect.
The above-mentioned detailed description is provided for the manufacturing process of the heating ceramic atomizing core and the heating ceramic atomizing core, and for those skilled in the art, there may be changes in the specific implementation manner and the application scope according to the idea of the embodiment of the present invention, and in summary, the content of the present description should not be construed as a limitation to the present invention.
Claims (10)
1. A manufacturing process of a heating ceramic atomizing core is characterized by comprising the following steps:
s1, weighing 40-60% of diatomite, 10-20% of resistance powder, 5-10% of sepiolite, 5-10% of alumina, 2-5% of silicon dioxide, 5-10% of quartz sand, 1-3% of zinc oxide, 0.5-1% of boron oxide, 1-3% of magnesium oxide, 10-20% of pore-forming agent, 5-10% of paraffin and 0.3-1% of surfactant according to mass percentage, and uniformly mixing the materials to prepare mixed powder;
s2, injecting the mixed powder into a mold with a preset shape in a slip casting mode to prepare a heating ceramic matrix, and drying the heating ceramic matrix for a preset time to form a blank;
s3, placing the blank body into a sintering bowl, using wax removing powder to wholly submerge the blank body, and then placing the blank body into a wax removing kiln to remove wax according to the preset temperature and time;
s4, placing the blank subjected to wax removal into a high-temperature furnace, and performing high-temperature sintering according to preset temperature and time to obtain a semi-finished product of the heating ceramic atomizing core;
and S5, performing surface nickel plating treatment on two ends of the semi-finished product of the heating ceramic atomizing core, and performing brazing leading-out electrodes on the nickel-plated part to obtain the heating ceramic atomizing core.
2. The process for manufacturing the heat-generating ceramic atomizing core according to claim 1, wherein the resistance powder is one or more of silicon carbide, graphene and stainless steel particles.
3. The manufacturing process of the heat-generating ceramic atomizing core according to claim 1, wherein the pore-forming agent is one or more of starch, acrylic, epoxy resin, graphite and cotton.
4. The process for manufacturing a heat-generating ceramic atomizing core according to claim 1, wherein the surfactant is oleic acid or stearic acid.
5. The process for manufacturing a heat-generating ceramic atomizing core according to claim 1, wherein the step S1 further includes:
and adding the mixed powder into grinding balls for ball milling for a preset time, and sieving the mixed powder subjected to ball milling through a screen.
6. The process of claim 1, wherein in step S3, the blank is entirely submerged with de-waxing powder, and then placed in a de-waxing kiln for de-waxing at a temperature of 200 ℃ to 700 ℃ for 10 hours to 30 hours.
7. The process of claim 1, wherein in step S4, the blank with de-waxing is placed in a high temperature furnace and sintered at 900-1300 ℃ for 8-20 hours.
8. The process for manufacturing a heat-generating ceramic atomizing core according to claim 1, wherein the step S4 further includes:
and cleaning dust of the semi-finished product of the heating ceramic atomizing core after high-temperature sintering by adopting ultrasonic cleaning equipment.
9. A heat-generating ceramic atomizing core, characterized in that it is produced by the manufacturing process of any one of claims 1 to 8.
10. The heat-generating ceramic atomizing core according to claim 9, wherein electrodes for electrical connection with an external power supply are provided at both opposite ends of the heat-generating ceramic atomizing core.
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