CN114315333A - Novel porous ceramic atomizing core production process - Google Patents
Novel porous ceramic atomizing core production process Download PDFInfo
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Abstract
The invention relates to the technical field of porous ceramic atomizing core production, and discloses a novel porous ceramic atomizing core production process, which comprises the step of mixing SiO2，Al2O3，Na2CO3，CaCO3Mixing powder and pore-forming powder with water, adding a binder for stirring, taking the stirred mixed slurry out, uniformly drying, drying to obtain a ceramic dry body, uniformly crushing the dried ceramic dry body, uniformly dispersing the crushed ceramic dry body to obtain ceramic granulation powder, and feeding the crushed ceramic granulation powder into a furnace for heating, wherein the pore-forming powder is graphite, starch and plastic particles, and the addition amount of the graphite, the starch and the plastic particles is 10-50% of the total mass of the powder in the stirring processAnd (5) performing dry pressing. The utility model provides a novel porous ceramic atomizing core production technology, provides a ceramic atomizing core's design, through ceramic porosity and aperture of control to match with the oil impregnate distance that corresponds atomizing core, greatly simplified ceramic development cycle, stabilized ceramic atomizing performance simultaneously.
Description
Technical Field
The invention relates to the technical field of production of porous ceramic atomizing cores, in particular to a novel production process of a porous ceramic atomizing core.
Background
The ceramic atomizing core of the electronic cigarette is a core component in the electronic cigarette, the main components of the ceramic atomizing core are sourced from the nature, a plurality of fine pores are formed inside the ceramic atomizing core after high-temperature firing, the average pore diameter of the ceramic atomizing core is one fifth of that of hair, and the fine pores are the key for realizing the functions of stable liquid guiding and liquid locking of the ceramic atomizing core. Due to surface tension and capillary action, liquid can uniformly permeate into the atomizing core and be adsorbed on the surface of the atomizing core, the porous ceramic material has strong adsorbability and very good biocompatibility, the quality of the porous ceramic material determines the atomizing performance of the electronic cigarette, and the ceramic matrix of the ceramic atomizing core is the key of the ceramic atomizing core.
In the existing system, the key of material design is in the porosity and pore diameter of ceramic, the porosity is too low, the core pasting condition is easy to occur due to insufficient oil seepage, and the problem of insufficient oil locking capacity of ceramic is easy to occur due to too high porosity; the aperture size also has similar problem, the aperture is little promptly, the problem that the speed is not enough in the mythical journey, and atomizing core on the present market, to different ceramic designs, especially the difference of ceramic oil permeability distance, the porosity and the aperture of adjustment pottery are in order to match the atomizing core structure that corresponds, but at this in-process, lack corresponding design, often cause the ceramic porosity and the aperture of design to mismatch, greatly increased ceramic development cycle not only, still influenced the yield of product and the stability that preparation cigarette bullet suction was experienced.
Disclosure of Invention
The invention aims to provide a novel production process of a porous ceramic atomizing core, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a novel production process of a porous ceramic atomizing core comprises the following steps:
s1, stirring the slurry
Mixing SiO2，Al2O3，Na2CO3，CaCO3Mixing the powder and the pore-forming powder with water, adding a binder, and stirring, wherein in the stirring process, the pore-forming powder is graphite, starch and plastic particles, and the adding amount of the pore-forming powder is 10-50% of the total mass of the powder;
s2, drying the slurry
Taking out the stirred mixed slurry, uniformly drying, and drying to obtain a ceramic dried body:
s3, ceramic granulation
Uniformly crushing the dried ceramic drying body, and uniformly dispersing the crushed ceramic drying body to obtain ceramic granulation powder;
s4 preparation of ceramic dry pressing blank
Carrying out dry pressing on the ceramic granulation powder obtained after crushing to further obtain a ceramic dry pressing green body;
s5, degreasing and sintering
Carrying out degreasing sintering on the ceramic dry pressing blank to obtain a ceramic matrix after the degreasing sintering is finished;
s6, processing ceramic atomizing core
And sequentially polishing, silk-screen printing and vacuum sintering the ceramic atomizing core to finally obtain the ceramic atomizing core.
Preferably, in step S6, the porosity and pore size of the ceramic atomizing core and the oil penetration distance satisfy the following relationship:
wherein the oil penetration distance L is the minimum distance between the oil absorption surface and the atomization surface, A is a constant, 0.4-0.7 is taken, mu is the viscosity of the tobacco tar at 25 ℃, r is the ceramic aperture, p is the ceramic porosity, and rho is the ratio of the number of pores when the aperture is rho;
s7, finished product testing
And (4) independently testing the atomized cores of the extracted part after polishing, silk-screen printing and vacuum sintering respectively.
Preferably, in step S6, the porosity and pore size of the ceramic atomizing core and the oil penetration distance satisfy the following relationship:
preferably, in step S6, L is the minimum distance between the oil suction surface and the atomization surface, and a is a constant, and is 0.4 to 0.7.
Preferably, in the step S6, the porosity is 40-70%, and the pore diameter is 10-50 μm.
Preferably, in step S6, the viscosity of the tobacco tar is in the range of 20 to 500mPa S.
Preferably, in step S6, μ is viscosity of the tobacco tar at 25 ℃, r is ceramic pore diameter, p is ceramic porosity, and ρ is a ratio of the number of pores when the pore diameter is rpr.
Preferably, in step S1, SiO280-90% of Al2O3The proportion of (A) is 5-20%, Na2CO3The addition amount of the CaCO is 3-10 percent3The addition amount of (B) is 0.1-2%.
Compared with the prior art, the invention provides a novel production process of the porous ceramic atomizing core.
The method has the following beneficial effects:
1. the utility model provides a novel porous ceramic atomizing core production technology, provides a ceramic atomizing core's design, through ceramic porosity and aperture of control to match with the oil impregnate distance that corresponds atomizing core, greatly simplified ceramic development cycle, stabilized ceramic atomizing performance simultaneously.
2. The utility model provides a novel porous ceramic atomizing core production technology, provides a novel porous ceramic atomizing core design, has effectively promoted the development efficiency of ceramic atomizing core, and the ceramic atomizing core of preparation has fine suitability to the tobacco tar of different grade type, all has fine atomizing performance to the tobacco tar of different grade type.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 1:
referring to fig. 1-1, the present invention provides a technical solution: a novel production process of a porous ceramic atomizing core comprises the following steps:
s1, stirring the slurry
80 wt% of SiO212 wt% of Al2O35 wt% of Na2CO31% by weight of CaCO3Mixing powder and pore-forming powder with water, wherein the pore-forming powder is graphite powder, the addition amount of the graphite powder is 40% of the total mass of SiO2, Al2O3, Na2CO3 and CaCO3, and adding a binder for stirring, and in the stirring process, the pore-forming powder is graphite, starch and plastic particles, and the addition amount of the graphite, the starch and the plastic particles is 20% of the total mass of the powder.
S2, drying the slurry
And taking out the stirred mixed slurry, uniformly drying, and drying to obtain a ceramic dried body.
S3, ceramic granulation
And uniformly crushing the dried ceramic drying body, and uniformly dispersing the crushed ceramic drying body to obtain the ceramic granulation powder.
S4 preparation of ceramic dry pressing blank
And carrying out dry pressing on the ceramic granulated powder obtained after crushing to further obtain a ceramic dry pressing green body.
S5, degreasing and sintering
And degreasing and sintering the ceramic dry pressing blank to obtain the ceramic atomizing core, wherein the sintering temperature is 1200 ℃.
S6, double-side grinding
And (4) polishing the two surfaces of the sintered ceramic atomizing core to the thickness of 1.48 mm.
S7, processing ceramic atomizing core
The ceramic atomization core after polishing is subjected to silk-screen printing and vacuum sintering to obtain the ceramic atomization core, and the porosity and the pore diameter of the ceramic atomization core and the oil penetration distance satisfy the following relational expression:
wherein the L oil penetration distance is the minimum distance between the oil absorption surface and the atomization surface, A is a constant, 0.5 is taken, mu is the viscosity of the tobacco tar at 25 ℃, r is the ceramic aperture, p is the ceramic porosity, rho is the pore number ratio when the aperture is rho, the porosity is 52.0 percent, the aperture is 22.05 mu m, and the applicable viscosity range of the tobacco tar is 100 mPas.
S8, finished product testing
And (3) extracting an atomization core which is polished, silk-screen printed and vacuum-sintered to respectively carry out independent tests, wherein the oil leakage thickness is 1.48mm, the proportion of the continuously-pumped paste core is 0%, and the proportion of oil leakage is 0%.
Example 2:
referring to fig. 1-1, the present invention provides a technical solution: a novel production process of a porous ceramic atomizing core comprises the following steps:
s1, stirring the slurry
80 wt% of SiO212 wt% of Al2O35 wt% of Na2CO31% by weight of CaCO3Mixing powder and pore-forming powder with water, wherein the pore-forming powder is graphite powder, the addition amount of the graphite powder is 40% of the total mass of SiO2, Al2O3, Na2CO3 and CaCO3, and adding a binder for stirring, and in the stirring process, the pore-forming powder is graphite, starch and plastic particles, and the addition amount of the graphite, the starch and the plastic particles is 20% of the total mass of the powder.
S2, drying the slurry
And taking out the stirred mixed slurry, uniformly drying, and drying to obtain a ceramic dried body.
S3, ceramic granulation
And uniformly crushing the dried ceramic drying body, and uniformly dispersing the crushed ceramic drying body to obtain the ceramic granulation powder.
S4 preparation of ceramic dry pressing blank
And carrying out dry pressing on the ceramic granulated powder obtained after crushing to further obtain a ceramic dry pressing green body.
S5, degreasing and sintering
And degreasing and sintering the ceramic dry pressing blank to obtain the ceramic atomizing core, wherein the sintering temperature is 1200 ℃.
S6, double-side grinding
And (4) polishing the two surfaces of the sintered ceramic atomizing core to the thickness of 1.48 mm.
S7, processing ceramic atomizing core
The ceramic atomization core after polishing is subjected to silk-screen printing and vacuum sintering to obtain the ceramic atomization core, and the porosity and the pore diameter of the ceramic atomization core and the oil penetration distance satisfy the following relational expression:
wherein the L oil penetration distance is the minimum distance between the oil absorption surface and the atomization surface, A is a constant, 0.8 is taken, mu is the viscosity of the tobacco tar at 25 ℃, r is the ceramic aperture, p is the ceramic porosity, rho is the pore number ratio when the aperture is rho, the porosity is 58.0 percent, the aperture is 17.03 mu m, and the applicable viscosity range of the tobacco tar is 100 mPas.
S8, finished product testing
And (3) extracting an atomization core which is polished, silk-screen printed and vacuum-sintered to respectively carry out independent tests, wherein the oil leakage thickness is 1.60mm, the proportion of the continuously-extracted paste core is 0%, and the oil leakage proportion is 0%.
Example 3:
referring to fig. 1-1, the present invention provides a technical solution: a novel production process of a porous ceramic atomizing core comprises the following steps:
s1, stirring the slurry
80 wt% of SiO212 wt% of Al2O35 wt% of Na2CO31% by weight of CaCO3Mixing powder and pore-forming powder with water, wherein the pore-forming powder is graphite powder, the addition amount of the graphite powder is 40% of the total mass of SiO2, Al2O3, Na2CO3 and CaCO3, and adding a binder for stirring, and in the stirring process, the pore-forming powder is graphite, starch and plastic particles, and the addition amount of the graphite, the starch and the plastic particles is 20% of the total mass of the powder.
S2, drying the slurry
And taking out the stirred mixed slurry, uniformly drying, and drying to obtain a ceramic dried body.
S3, ceramic granulation
And uniformly crushing the dried ceramic drying body, and uniformly dispersing the crushed ceramic drying body to obtain the ceramic granulation powder.
S4 preparation of ceramic dry pressing blank
And carrying out dry pressing on the ceramic granulated powder obtained after crushing to further obtain a ceramic dry pressing green body.
S5, degreasing and sintering
And degreasing and sintering the ceramic dry pressing blank to obtain the ceramic atomizing core, wherein the sintering temperature is 1200 ℃.
S6, double-side grinding
And (4) polishing the two surfaces of the sintered ceramic atomizing core to the thickness of 1.48 mm.
S7, processing ceramic atomizing core
The ceramic atomization core after polishing is subjected to silk-screen printing and vacuum sintering to obtain the ceramic atomization core, and the porosity and the pore diameter of the ceramic atomization core and the oil penetration distance satisfy the following relational expression:
wherein the L oil penetration distance is the minimum distance between the oil absorption surface and the atomization surface, A is a constant, 0.5 is taken, mu is the viscosity of the tobacco tar at 25 ℃, r is the ceramic aperture, p is the ceramic porosity, rho is the pore number ratio when the aperture is rho, the porosity is 45.0 percent, the aperture is 36.3 mu m, and the applicable viscosity range of the tobacco tar is 100 mPas.
S8, finished product testing
And (3) extracting an atomization core which is polished, silk-screened and vacuum-sintered to respectively carry out independent tests, wherein the oil leakage thickness is 1.98mm, the proportion of the continuously-pumped paste core is 0%, and the oil leakage proportion is 0%.
Example 4:
referring to fig. 1-1, the present invention provides a technical solution: a novel production process of a porous ceramic atomizing core comprises the following steps:
s1, stirring the slurry
80 wt% of SiO212 wt% of Al2O35 wt% of Na2CO31% by weight of CaCO3Mixing the powder and pore-forming powder with waterThe pore-forming powder is graphite powder, the addition amount of the graphite powder is 40% of the total mass of SiO2, Al2O3, Na2CO3 and CaCO3, a binder is added for stirring, and in the stirring process, the pore-forming powder is graphite, starch and plastic particles, and the addition amount of the graphite powder is 20% of the total mass of the powder.
S2, drying the slurry
And taking out the stirred mixed slurry, uniformly drying, and drying to obtain a ceramic dried body.
S3, ceramic granulation
And uniformly crushing the dried ceramic drying body, and uniformly dispersing the crushed ceramic drying body to obtain the ceramic granulation powder.
S4 preparation of ceramic dry pressing blank
And carrying out dry pressing on the ceramic granulated powder obtained after crushing to further obtain a ceramic dry pressing green body.
S5, degreasing and sintering
And degreasing and sintering the ceramic dry pressing blank to obtain the ceramic atomizing core, wherein the sintering temperature is 1200 ℃.
S6, double-side grinding
And (4) polishing the two surfaces of the sintered ceramic atomizing core to the thickness of 1.48 mm.
S7, processing ceramic atomizing core
The ceramic atomization core after polishing is subjected to silk-screen printing and vacuum sintering to obtain the ceramic atomization core, and the porosity and the pore diameter of the ceramic atomization core and the oil penetration distance satisfy the following relational expression:
wherein the L oil penetration distance is the minimum distance between the oil absorption surface and the atomization surface, A is a constant, 0.5 is taken, mu is the viscosity of the tobacco tar at 25 ℃, r is the ceramic aperture, p is the ceramic porosity, rho is the pore number ratio when the aperture is rho, the porosity is 56.0 percent, the aperture is 20.45 mu m, and the applicable viscosity range of the tobacco tar is 250 mPas.
S8, finished product testing
And (3) extracting an atomization core which is polished, silk-screened and vacuum-sintered to respectively carry out independent tests, wherein the oil leakage thickness is 0.76mm, the proportion of the continuously-pumped paste core is 0%, and the proportion of oil leakage is 0%.
Example 5:
referring to fig. 1-1, the present invention provides a technical solution: a novel production process of a porous ceramic atomizing core comprises the following steps:
s1, stirring the slurry
80 wt% of SiO212 wt% of Al2O35 wt% of Na2CO31% by weight of CaCO3Mixing powder and pore-forming powder with water, wherein the pore-forming powder is graphite powder, the addition amount of the graphite powder is 40% of the total mass of SiO2, Al2O3, Na2CO3 and CaCO3, and adding a binder for stirring, and in the stirring process, the pore-forming powder is graphite, starch and plastic particles, and the addition amount of the graphite, the starch and the plastic particles is 20% of the total mass of the powder.
S2, drying the slurry
And taking out the stirred mixed slurry, uniformly drying, and drying to obtain a ceramic dried body.
S3, ceramic granulation
And uniformly crushing the dried ceramic drying body, and uniformly dispersing the crushed ceramic drying body to obtain the ceramic granulation powder.
S4 preparation of ceramic dry pressing blank
And carrying out dry pressing on the ceramic granulated powder obtained after crushing to further obtain a ceramic dry pressing green body.
S5, degreasing and sintering
And degreasing and sintering the ceramic dry pressing blank to obtain the ceramic atomizing core, wherein the sintering temperature is 1200 ℃.
S6, double-side grinding
And (4) polishing the two surfaces of the sintered ceramic atomizing core to the thickness of 1.48 mm.
S7, processing ceramic atomizing core
The ceramic atomization core after polishing is subjected to silk-screen printing and vacuum sintering to obtain the ceramic atomization core, and the porosity and the pore diameter of the ceramic atomization core and the oil penetration distance satisfy the following relational expression:
wherein L oil penetration distance is oil absorptionThe minimum distance between the surface and the atomization surface, A is a constant, 0.5 is taken, mu is viscosity of the tobacco tar at 25 ℃, r is ceramic aperture, p is ceramic porosity, rho is the proportion of the number of pores when the aperture is rho, the porosity is 54.0 percent, the aperture is 18.54 mu m, and the applicable viscosity range of the tobacco tar is 60 mPas.
S8, finished product testing
And (3) extracting an atomization core which is polished, silk-screen printed and vacuum-sintered to respectively carry out independent tests, wherein the oil leakage thickness is 2.13mm, the proportion of the continuously-pumped paste core is 0%, and the proportion of oil leakage is 0%.
Example 4:
referring to fig. 1-1, the present invention provides a technical solution: a novel production process of a porous ceramic atomizing core comprises the following steps:
s1, stirring the slurry
80 wt% of SiO212 wt% of Al2O35 wt% of Na2CO31% by weight of CaCO3Mixing powder and pore-forming powder with water, wherein the pore-forming powder is graphite powder, the addition amount of the graphite powder is 40% of the total mass of SiO2, Al2O3, Na2CO3 and CaCO3, and adding a binder for stirring, and in the stirring process, the pore-forming powder is graphite, starch and plastic particles, and the addition amount of the graphite, the starch and the plastic particles is 20% of the total mass of the powder.
S2, drying the slurry
And taking out the stirred mixed slurry, uniformly drying, and drying to obtain a ceramic dried body.
S3, ceramic granulation
And uniformly crushing the dried ceramic drying body, and uniformly dispersing the crushed ceramic drying body to obtain the ceramic granulation powder.
S4 preparation of ceramic dry pressing blank
And carrying out dry pressing on the ceramic granulated powder obtained after crushing to further obtain a ceramic dry pressing green body.
S5, degreasing and sintering
And degreasing and sintering the ceramic dry pressing blank to obtain the ceramic atomizing core, wherein the sintering temperature is 1200 ℃.
S6, double-side grinding
And (4) polishing the two surfaces of the sintered ceramic atomizing core to the thickness of 1.48 mm.
S7, processing ceramic atomizing core
The ceramic atomization core after polishing is subjected to silk-screen printing and vacuum sintering to obtain the ceramic atomization core, and the porosity and the pore diameter of the ceramic atomization core and the oil penetration distance satisfy the following relational expression:
wherein the L oil penetration distance is the minimum distance between the oil absorption surface and the atomization surface, A is a constant, 0.5 is taken, mu is the viscosity of the tobacco tar at 25 ℃, r is the ceramic aperture, p is the ceramic porosity, rho is the pore number ratio when the aperture is rho, the porosity is 56.0 percent, the aperture is 20.45 mu m, and the applicable viscosity range of the tobacco tar is 250 mPas.
S8, finished product testing
And (3) extracting an atomization core which is polished, silk-screened and vacuum-sintered to respectively carry out independent tests, wherein the oil leakage thickness is 0.76mm, the proportion of the continuously-pumped paste core is 0%, and the proportion of oil leakage is 0%.
Example 6:
referring to fig. 1-1, the present invention provides a technical solution: a novel production process of a porous ceramic atomizing core comprises the following steps:
s1, stirring the slurry
80 wt% of SiO212 wt% of Al2O35 wt% of Na2CO31% by weight of CaCO3Mixing powder and pore-forming powder with water, wherein the pore-forming powder is graphite powder, the addition amount of the graphite powder is 40% of the total mass of SiO2, Al2O3, Na2CO3 and CaCO3, and adding a binder for stirring, and in the stirring process, the pore-forming powder is graphite, starch and plastic particles, and the addition amount of the graphite, the starch and the plastic particles is 20% of the total mass of the powder.
S2, drying the slurry
And taking out the stirred mixed slurry, uniformly drying, and drying to obtain a ceramic dried body.
S3, ceramic granulation
And uniformly crushing the dried ceramic drying body, and uniformly dispersing the crushed ceramic drying body to obtain the ceramic granulation powder.
S4 preparation of ceramic dry pressing blank
And carrying out dry pressing on the ceramic granulated powder obtained after crushing to further obtain a ceramic dry pressing green body.
S5, degreasing and sintering
And degreasing and sintering the ceramic dry pressing blank to obtain the ceramic atomizing core, wherein the sintering temperature is 1200 ℃.
S6, double-side grinding
And (4) polishing the two surfaces of the sintered ceramic atomizing core to the thickness of 1.48 mm.
S7, processing ceramic atomizing core
The ceramic atomization core after polishing is subjected to silk-screen printing and vacuum sintering to obtain the ceramic atomization core, and the porosity and the pore diameter of the ceramic atomization core and the oil penetration distance satisfy the following relational expression:
wherein the L oil penetration distance is the minimum distance between the oil absorption surface and the atomization surface, A is a constant, 0.6 is taken, mu is the viscosity of the tobacco tar at 25 ℃, r is the ceramic aperture, p is the ceramic porosity, rho is the pore number ratio when the aperture is rho, the porosity is 58.0 percent, the aperture is 22.00 mu m, and the applicable viscosity range of the tobacco tar is 100 mPas.
S8, finished product testing
And (3) extracting an atomization core which is polished, silk-screen printed and vacuum-sintered to respectively carry out independent tests, wherein the oil leakage thickness is 3.4mm, the proportion of the continuously-pumped paste core is 0%, and the proportion of oil leakage is 0%.
The utility model provides a novel porous ceramic atomizing core production technology, provides a ceramic atomizing core's design, through control ceramic porosity and aperture to match with the oil impregnate distance that corresponds atomizing core, greatly simplified ceramic development cycle, the atomizing performance of pottery has been stabilized simultaneously, effectively promoted ceramic atomizing core's development efficiency in addition, the ceramic atomizing core of preparation has fine suitability to the tobacco tar of different grade type, tobacco tar to the different grade type all has fine atomizing performance.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A novel production process of a porous ceramic atomizing core is characterized in that: the method comprises the following steps:
s1, stirring the slurry
Mixing SiO2，Al2O3，Na2CO3，CaCO3Mixing the powder and the pore-forming powder with water, adding a binder, and stirring, wherein in the stirring process, the pore-forming powder is graphite, starch and plastic particles, and the adding amount of the pore-forming powder is 10-50% of the total mass of the powder;
s2, drying the slurry
Taking out the stirred mixed slurry, uniformly drying, and drying to obtain a ceramic dried body:
s3, ceramic granulation
Uniformly crushing the dried ceramic drying body, and uniformly dispersing the crushed ceramic drying body to obtain ceramic granulation powder;
s4 preparation of ceramic dry pressing blank
Carrying out dry pressing on the ceramic granulation powder obtained after crushing to further obtain a ceramic dry pressing green body;
s5, degreasing and sintering
Carrying out degreasing sintering on the ceramic dry pressing blank to obtain a ceramic matrix after the degreasing sintering is finished;
s6, processing ceramic atomizing core
Sequentially polishing, silk-screening and vacuum sintering the ceramic atomizing core to finally obtain the ceramic atomizing core;
s7, finished product testing
And (4) independently testing the atomized cores of the extracted part after polishing, silk-screen printing and vacuum sintering respectively.
2. The production process of the novel porous ceramic atomizing core according to claim 1, characterized in that: in the step S6, the porosity and pore diameter of the ceramic atomizing core and the oil penetration distance satisfy the following relations:
3. the production process of the novel porous ceramic atomizing core according to claim 1, characterized in that: in step S6, the L oil penetration distance is the minimum distance between the oil suction surface and the atomization surface, and a is a constant, and is taken to be 0.4 to 0.7.
4. The production process of the novel porous ceramic atomizing core according to claim 1, characterized in that: in the step S6, the porosity is 40-70%, and the pore diameter is 10-50 μm.
5. The production process of the novel porous ceramic atomizing core according to claim 1, characterized in that: in step S6, a viscosity range of 20 to 500mPa S is suitable for the tobacco tar.
6. The production process of the novel porous ceramic atomizing core according to claim 1, characterized in that: in the step S6, μ is the viscosity of the tobacco tar at 25 ℃, r is the ceramic pore diameter, p is the ceramic porosity, and ρ is the ratio of the number of pores when the pore diameter is rpp.
7. The production process of the novel porous ceramic atomizing core according to claim 1, characterized in that: in the step S1, SiO280-90% of Al2O3The proportion of (A) is 5-20%, Na2CO3The addition amount of the CaCO is 3-10 percent3The addition amount of (B) is 0.1-2%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115304397A (en) * | 2022-10-10 | 2022-11-08 | 苏州拓瓷科技有限公司 | Porous silica ceramic raw material for atomization, porous silica ceramic for atomization, and preparation method and application thereof |
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| CN111138175A (en) * | 2020-01-14 | 2020-05-12 | 东莞市陶陶新材料科技有限公司 | Porous ceramic substrate, preparation method thereof and atomizing core |
| CN112321286A (en) * | 2020-11-04 | 2021-02-05 | 深圳市博迪科技开发有限公司 | Multilayer porous ceramic material and preparation method thereof |
| CN215124324U (en) * | 2021-03-12 | 2021-12-14 | 深圳陶陶科技有限公司 | Ceramic atomizing core and electronic cigarette |
| CN113511886A (en) * | 2021-04-22 | 2021-10-19 | 洛阳阳明新材料科技有限公司 | Ceramic atomizing core and preparation method thereof |
| CN113896527A (en) * | 2021-11-08 | 2022-01-07 | 刘松青 | Porous ceramic for electronic cigarette and preparation method thereof |
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