CN116621602A

CN116621602A - Atomizer, atomized ceramic and preparation method thereof

Info

Publication number: CN116621602A
Application number: CN202310635929.0A
Authority: CN
Inventors: 李志鹏; 陈志超; 严鑫洋; 付尧
Original assignee: Love Miracle Hong Kong Co Ltd
Current assignee: Love Miracle Hong Kong Co Ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-08-22

Abstract

The application discloses an atomizer, atomized ceramic and a preparation method thereof. The preparation method of the atomized ceramic comprises the following steps: mixing and dry-pressing the raw materials of the matrix layer to obtain a matrix layer blank; mixing and dry-pressing the stock solution layer raw materials to obtain a stock solution layer blank; mixing and dry-pressing the lyophile layer raw materials to obtain a lyophile layer blank; and sequentially stacking the matrix layer blank, the liquid storage layer blank and the lyophile layer blank, isostatic pressing in a vacuum environment to obtain a prefabricated biscuit, and sintering the prefabricated biscuit to obtain atomized ceramic, wherein the atomized ceramic comprises a matrix layer, a liquid storage layer and a lyophile layer which are sequentially arranged. Through the mode, the matrix layer blank, the liquid storage layer blank and the lyophile layer blank are prepared by adopting the dry-pressing raw material method, and then the porous atomized ceramic is prepared by adopting the isostatic pressing method through the matrix layer blank, the liquid storage layer blank and the lyophile layer blank, so that the pore diameter of pores in the atomized ceramic has directional arrangement of pores, the pore diameter consistency of each layer is good, the structure of the atomized ceramic is stable, and the strength is high.

Description

Atomizer, atomized ceramic and preparation method thereof

Technical Field

The application relates to the technical field of ceramics, in particular to an atomizer, atomized ceramics and a preparation method thereof.

Background

The atomized ceramic in the atomizer is generally a ceramic material prepared by high-temperature sintering and composed of aggregate, binder, pore-forming agent and the like, and the inside of the ceramic material is provided with a plurality of porous structures which are communicated with each other and the surface of the material.

Ceramic atomization in the current market mainly adopts injection molding, hot-press injection molding and tape casting. The porous ceramic atomization internal porous structure prepared by injection molding and hot-pressing injection molding processes is disordered and randomly distributed, and the individual difference is large, so that the taste consistency and stability of the atomizer used by users are poor; and the casting molding process has high technical threshold and low matrix strength.

Disclosure of Invention

The application mainly solves the technical problem of providing an atomizer, atomized ceramic and a preparation method thereof, and can improve the stability of an atomized ceramic structure.

In order to solve the technical problems, the application adopts a technical scheme that: provided is a method for preparing atomized ceramic, comprising:

mixing and dry-pressing the raw materials of the matrix layer to obtain a matrix layer blank;

mixing and dry-pressing the stock solution layer raw materials to obtain a stock solution layer blank;

mixing and dry-pressing the lyophile layer raw materials to obtain a lyophile layer blank;

and sequentially stacking the matrix layer blank, the liquid storage layer blank and the lyophile layer blank, isostatic pressing in a vacuum environment to obtain a prefabricated biscuit, and sintering the prefabricated biscuit to obtain atomized ceramic, wherein the atomized ceramic comprises a matrix layer, a liquid storage layer and a lyophile layer which are sequentially arranged. .

Optionally, the substrate layer raw materials comprise the following raw materials in mass ratio: 40-45% of diatomite, 10-15% of quartz sand, 5-10% of kaolin, 2-5% of alumina, 1-3% of PVA, 0.1-1% of lubricant, 10-15% of glass powder and 20-25% of starch;

wherein the particle size of the diatomite is 30-50 mu m, the particle size of the kaolin is 4-10 mu m, the particle size of the alumina is 5-10 mu m, and the particle size of the quartz sand is 30-40 mu m.

Optionally, the stock solution layer raw materials include the following raw materials in mass ratio: 55-60% of diatomite, 1-3% of quartz sand, 2-5% of wollastonite, 1-3% of PVA, 0.1-1% of lubricant, 10-15% of glass powder and 28-32% of starch;

wherein the particle size of the diatomite is 50-80 mu m, the particle size of the wollastonite is 5-15 mu m, and the particle size of the quartz sand is 50-70 mu m.

Optionally, the lyophile layer raw materials comprise the following raw materials in mass ratio: 45-50% of diatomite, 15-20% of purple clay, 1-3% of PVA, 0.1-1% of lubricant, 5-10% of glass powder and 20-25% of starch;

wherein the grain size of the diatomite is 40-60 mu m, and the grain size of the purple sand is 10-30 mu m.

Optionally, the thickness of the matrix layer is 0.2-1 mm, the porosity of the matrix layer is 55-60%, and the pore diameter is 10-25 μm;

the thickness of the liquid storage layer is 0.5-2 mm, the porosity of the liquid storage layer is 60-70%, and the aperture is 30-50 mu m;

the thickness of the lyophile layer is 0.3-0.5 mm, the porosity of the lyophile layer is 55-65%, and the aperture is 10-30 μm.

Optionally, sintering the preform to obtain atomized ceramic, including:

removing glue from the prefabricated biscuit to obtain a degreasing blank;

and performing biscuit firing on the degreasing blank to obtain the atomized ceramic.

Optionally, the step of bisque firing the degreased blank to obtain the atomized ceramic further includes:

and silk screen printing thick film slurry on the hydrophilic layer of the atomized ceramic, drying the slurry, and sintering and forming to obtain the atomized ceramic.

Optionally, the prefabricated biscuit comprises the following raw materials in percentage by mass: 40-70% of diatomite, 0-20% of wollastonite, 0-20% of quartz sand, 0-20% of purple clay, 0-10% of kaolin, 0-10% of alumina, 0-5% of vermiculite, 5-30% of sintering aid, 1-5% of binder, 0.1-1% of lubricant and 5-40% of pore-forming agent.

Optionally, the sintering aid comprises one or more of zinc oxide, titanium dioxide, silicon dioxide, sodium silicate, lithium carbonate and glass powder; the binder comprises one or more of PVA, PVB and resin; the lubricant comprises one or more of polyamide wax and polyethylene wax; the pore-forming agent comprises one or more of polyvinyl chloride microspheres, polymethyl methacrylate, flour, starch and carbon powder.

In order to solve the technical problems, the application adopts another technical scheme that: the application provides atomized ceramic which is prepared by the preparation method of the atomized ceramic.

In order to solve the technical problems, the application adopts another technical scheme that: there is provided an atomizer comprising the atomized ceramic provided by the application.

The beneficial effects of the application are as follows: the preparation method comprises the steps of sequentially preparing a matrix layer blank, a liquid storage layer blank and a lyophile layer blank by a dry pressing method, sequentially stacking the matrix layer blank, the matrix layer blank and the lyophile layer blank, performing isostatic pressing in a vacuum environment to obtain a prefabricated biscuit, and sintering the prefabricated biscuit. Different from the prior art, the preparation method of the application can obtain uniform and compact atomized ceramics. The firing shrinkage of the atomized ceramic is small and all directions are uniformly shrunk, air holes in the atomized ceramic are arranged in an oriented mode, the pore diameter consistency of each layer is good, the structure of the atomized ceramic is stable, and the strength is high.

Drawings

FIG. 1 is a schematic flow chart of an embodiment of a method for preparing atomized ceramic according to the present application;

FIG. 2 is a schematic flow chart of another embodiment of the atomized ceramic preparation method according to the application;

FIG. 3 is a schematic structural view of an embodiment of the atomized ceramic of the present application;

FIG. 4 is a schematic view of the cross-sectional A-A configuration of the embodiment of FIG. 3;

FIG. 5 is a schematic view of the structure of an embodiment of the atomizer of the present application;

fig. 6 is a schematic view of an exploded construction of an embodiment of the atomizer of the present application.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The application provides an atomizer, atomized ceramic and preparation method embodiments thereof. The atomized ceramic provided by the application can be applied to an atomization core in an atomizer, and can also be applied to various industries including sewage treatment, beverage, petrochemical industry, metal smelting, catalyst carriers, medicines, brewing and the like. The atomized ceramic provided by the embodiment has the advantages of dry combustion resistance, high temperature resistance, long service life, no falling of foreign particles, good taste and the like when being used as an atomization core of an atomizer.

Referring to fig. 1, fig. 1 is a schematic flow chart of an embodiment of a method for preparing an atomized ceramic according to the present application, where the method includes:

s100: and mixing and dry-pressing the raw materials of the matrix layer to obtain a matrix layer blank.

Preparing a matrix layer blank, firstly weighing matrix layer raw materials with a certain proportion, adding the matrix layer raw materials into a mixer, mixing for about 4 hours, and drying for about 1-5 hours at 100-120 ℃ after mixing to obtain a solid matrix layer mixture.

And then placing the dried matrix layer mixture into a mould, making the powder particles of the mixture approach each other in the mould under the action of external force, firmly combining by means of internal friction force, and dry-pressing to obtain a matrix layer blank.

Optionally, the substrate layer raw materials comprise the following raw materials in mass ratio: 40-45% of diatomite, 10-15% of quartz sand, 5-10% of kaolin, 2-5% of alumina, 1-3% of PVA, 0.1-1% of lubricant, 10-15% of glass powder and 20-25% of starch.

For example, in one embodiment, the substrate layer materials include diatomaceous earth 42%, quartz sand 14%, kaolin 5%, alumina 5%, PVA1.5%, lubricant 0.5%, glass frit 12%, and starch 20%.

In another embodiment, the substrate layer comprises 45% of diatomite, 11% of quartz sand, 7% of kaolin, 3% of alumina, 1.5% of PVA, 0.5% of lubricant, 10% of glass powder and 22% of starch.

Diatomite is used as aggregate of the base layer blank, and plays a role in supporting strength of the base layer blank. Alternatively, the particle size of the diatomaceous earth powder in the base layer raw material is 30 to 50. Mu.m, for example, 30 μm, 32 μm, 35 μm, 38 μm, 40 μm, 42 μm, 45 μm, 48 μm, 50 μm may be used. The diatomite with the particle size has higher porosity and stronger adsorption capacity,

alternatively, the kaolin particles in the matrix layer material may have a particle size of 4 to 10. Mu.m, for example, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10. Mu.m.

Alternatively, the alumina particle size in the base layer raw material is 5 to 10. Mu.m, for example, 5. Mu.m, 6. Mu.m, 7. Mu.m, 8. Mu.m, 9. Mu.m, 10. Mu.m.

Alternatively, the silica sand particle size of the base layer raw material is 30 to 40. Mu.m, for example, 31. Mu.m, 32. Mu.m, 33. Mu.m, 34. Mu.m, 35. Mu.m, 36. Mu.m, 37. Mu.m, 38. Mu.m, 39. Mu.m, 40. Mu.m.

The base layer in the atomized ceramic is formed after the base layer blank is sintered, and the base layer is used as a base of the atomized ceramic, so that the strength of the atomized ceramic can be ensured, and the problem of ceramic powder falling is avoided.

S200: and mixing the stock solution layer raw materials and dry pressing to obtain a stock solution layer blank.

Preparing a liquid storage layer blank, weighing liquid storage layer raw materials in a certain proportion, adding the liquid storage layer raw materials into a mixer, mixing for about 1-5 hours, and drying for about 2 hours at 100-120 ℃ after mixing to obtain the liquid storage layer mixture.

And then placing the dried solid liquid storage layer mixture into a mould, making the powder particles of the mixture approach each other in the mould under the action of external force, firmly combining by means of internal friction force, and dry pressing to obtain a liquid storage layer blank.

Optionally, the liquid storage layer comprises the following raw materials in mass ratio: 55-60% of diatomite, 1-3% of quartz sand, 2-5% of wollastonite, 1-3% of PVA, 0.1-1% of lubricant, 10-15% of glass powder and 28-32% of starch.

In one embodiment, the raw materials of the substrate layer may include 60% of diatomite, 2% of quartz sand, 3% of wollastonite, 1.5% of PVA, 0.5% of lubricant, 5% of glass powder and 28% of starch.

In another embodiment, the substrate layer comprises 55% of diatomite, 3% of quartz sand, 5% of wollastonite, 1.5% of PVA, 0.5% of lubricant, 5% of glass powder and 30% of starch.

Diatomite is used as aggregate of the liquid storage layer blank and can also play a role in supporting strength. Alternatively, the diatomaceous earth in the stock solution layer raw material may have a particle diameter of 50 to 80 μm, for example, 50 μm, 55 μm, 60 μm, 65 μm, 70 μm, 75 μm, 80 μm. The liquid storage layer blank prepared by the diatomite with the particle size is easy to adhere to liquid, and the liquid storage capacity of the liquid storage layer blank is improved.

Alternatively, the wollastonite in the stock solution layer raw material has a particle diameter of 5 to 15. Mu.m, for example, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, 13 μm, 14 μm, 15 μm.

Alternatively, the particle size of the quartz sand in the stock solution layer raw material is 50 to 70 μm, and may be 50 μm, 55 μm, 60 μm, 65 μm, 70 μm, for example.

After the liquid storage layer blank is sintered, a liquid storage layer in the atomized ceramic is formed, the liquid storage layer plays a role in storing atomized matrixes in the atomized ceramic, so that the atomized matrixes fully permeate to one side of the ceramic facing the heating piece, the liquid guide speed of the atomized ceramic is improved, and the service life of the atomized ceramic is prolonged.

S300: and mixing and dry-pressing the lyophile layer raw materials to obtain a lyophile layer blank.

Preparing a lyophile layer blank, firstly weighing lyophile layer raw materials with a certain proportion, adding the lyophile layer raw materials into a mixer, mixing for about 1-5 hours, and drying for about 2 hours at 100-120 ℃ after mixing to obtain the lyophile layer mixture.

And then placing the dried solid lyophile layer mixture into a mould, making the powder particles of the mixture approach each other in the mould under the action of external force, firmly combining by means of internal friction force, and dry pressing to obtain the lyophile layer blank.

Optionally, the lyophile layer raw materials comprise the following raw materials in mass ratio: 45-50% of diatomite, 15-20% of purple clay, 1-3% of PVA, 0.1-1% of lubricant, 5-10% of glass powder and 20-25% of starch.

For example, in one embodiment, the lyophile layer material includes a material of 55% diatomaceous earth, 3% quartz sand, 5% wollastonite, 1.5% PVA, 0.5% lubricant, 5% glass frit, and 30% starch.

In another example, the lyophile layer material may include 60% of diatomaceous earth, 2% of quartz sand, 3% of wollastonite, 1.5% of PVA, 0.5% of lubricant, 5% of glass frit, and 28% of starch.

Alternatively, the diatomite in the lyophile layer material has a particle size of 40-60 μm, for example 40 μm, 45 μm, 50 μm, 55 μm, 60 μm. The diatomite with the particle size has strong adsorption capacity and can adsorb liquid of other layers.

The particle size of the purple sand in the lyophile layer raw material is 10-30 μm, for example 10 μm, 15 μm, 20 μm, 25 μm, 30 μm.

After the lyophile layer blank is sintered, a lyophile layer in the atomized ceramic is formed, and the lyophile layer is arranged on one side of the liquid storage layer, which is away from the substrate layer. The lyophile layer is used for the silk-screen heating film, has high liquid guiding speed, can ensure that the heating film and the atomized matrix are fully soaked, and avoids the problems of dry burning and the like.

S400: and sequentially stacking the matrix layer blank, the liquid storage layer blank and the lyophile layer blank, performing isostatic compaction in a vacuum environment to obtain a prefabricated biscuit, and sintering the prefabricated biscuit to obtain the atomized ceramic.

After the steps, the prepared atomized ceramic comprises a matrix layer formed by sintering a matrix layer blank, a liquid storage layer formed by sintering a liquid storage layer blank and a lyophile layer formed by sintering a lyophile layer blank, which are sequentially arranged.

The steps of preparing the base layer blank, the base layer blank and the lyophile layer blank in S100 to S300 may be performed simultaneously or may be performed separately in different orders. Namely, the matrix layer blank, the liquid storage layer blank and the lyophile layer blank can be prepared simultaneously by dry pressing, or can be prepared sequentially according to any sequence.

After the matrix layer blank, the liquid storage layer blank and the lyophile layer blank are prepared, the matrix layer blank, the liquid storage layer blank and the lyophile layer blank are sequentially stacked in an elastic die, and the environment is vacuumized, so that the matrix layer blank, the liquid storage layer blank and the lyophile layer blank are subjected to uniform pressure in all directions in the vacuum environment to be isostatically molded.

Alternatively, the isostatic pressure is 200MPa to 300MPa, for example 250MPa and 208MPa.

And preparing the prefabricated biscuit by an isostatic pressing method. The preformed biscuit is provided with a matrix layer, a liquid storage layer and a lyophile layer which are sequentially stacked and formed to be sintered, and accordingly, atomized ceramic obtained by sintering the preformed biscuit comprises the matrix layer, the liquid storage layer and the lyophile layer which are sequentially arranged.

Alternatively, the thickness of the matrix layer in the atomized ceramic is 0.2 to 1mm, and may be, for example, 0.2mm, 0.4mm, 0.6mm, 0.8mm, 1.0mm. The thickness of the liquid storage layer is 0.5 to 2mm, and may be, for example, 0.5mm, 0.8mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2.0mm. The thickness of the lyophile layer is 0.3 to 0.5mm, and may be, for example, 0.3mm, 0.35mm, 0.4mm, 0.45mm, or 0.5mm.

The preform obtained by isostatic pressing comprises the following raw materials in percentage by mass: 40-70% of diatomite, 0-20% of wollastonite, 0-20% of quartz sand, 0-20% of purple clay, 0-10% of kaolin, 0-10% of alumina, 0-5% of vermiculite, 5-30% of sintering aid, 1-5% of binder, 0.1-1% of lubricant and 5-40% of pore-forming agent.

Wherein, in the above-mentioned substrate layer raw material, stock solution layer raw material and lyophile layer raw material, besides the raw materials, the sintering aid can also at least comprise one or more of zinc oxide, titanium dioxide, silicon dioxide, sodium silicate, lithium carbonate and glass powder.

The binder may also include one or more of PVA (polyvinyl alcohol), PVB (polyvinyl butyral), and the like.

The lubricant includes one or more of polyamide wax and polyethylene wax, and lubricant 920 may be used.

The pore-forming agent can also comprise one or more of polyvinyl chloride microspheres, polymethyl methacrylate, flour, starch and carbon powder.

And then sintering the prefabricated biscuit to prepare the atomized ceramic. The atomized ceramic after sintering is provided with a matrix layer, a liquid storage layer and a lyophile layer which are sequentially arranged, and the matrix layer, the liquid storage layer and the lyophile layer respectively have specific porosity and pore size.

In the above embodiment, atomized ceramics with a matrix layer, a liquid storage layer and a lyophile layer are respectively prepared by adjusting different raw material components and proportions. Wherein, the porosity of the air holes of the matrix layer is 55 to 60 percent and the aperture is 10 to 25 mu m; the porosity of the pores of the liquid storage layer 120 is 60-70%, and the pore diameter is 30-50 mu m; the porosity of the pores of the lyophile layer 130 is 55-65%, and the pore diameter is 10-30 μm.

In the embodiment, the base layer blank and the lyophile layer blank are combined together to form a prefabricated biscuit by an isostatic pressing method, and the prefabricated biscuit is sintered and molded to obtain the atomized ceramic. Compared with the prior art, the atomized ceramic blank prepared by the preparation method in the embodiment has the characteristics of uniformity, compactness and uniform shrinkage in all directions, and the oriented arrangement and the direction consistency of the air holes of the atomized ceramic blank are good, so that each functional layer in the atomized ceramic has specific porosity and pore size, and the atomized ceramic has high strength and good stability.

Referring to fig. 2, fig. 2 is a schematic flow chart of another embodiment of the method for preparing atomized ceramic according to the present application.

In this embodiment, compared to the previous embodiment, after the step of isostatic pressing in a vacuum environment to obtain a preform, sintering the preform to obtain an atomized ceramic further includes:

s410: and (5) discharging glue from the isostatic pressing preformed biscuit to obtain a degreasing blank.

After the matrix layer blank, the liquid storage layer blank and the lyophile layer blank are prepared, the matrix layer blank, the liquid storage layer blank and the lyophile layer blank are sequentially stacked in an elastic die, and the environment is vacuumized, so that the matrix layer blank, the liquid storage layer blank and the lyophile layer blank are subjected to uniform pressure in all directions in the vacuum environment to be isostatically molded. The preform is prepared by the isostatic pressing method, and is subjected to glue discharging treatment so as to remove organic matters such as lubricant, pore-forming agent and the like added in each layer of raw materials, and the organic matters in the preform are removed before sintering so as to ensure the requirements of the shape, the size and the quality of the product.

Wherein the temperature of the adhesive discharge is about 850 ℃, the temperature rising rate is 0.5 ℃/min when the temperature is lower than 300 ℃, and the temperature rising rate is 1 ℃/min when the temperature is higher than 300 ℃.

The process of discharging the glue can comprise the following steps: and (3) placing the prefabricated biscuit in a glue discharging furnace, and heating the biscuit from room temperature to 850 ℃ in an atmospheric environment, wherein the glue discharging time is 40-100 h, so as to obtain a degreased biscuit.

S420: and (5) performing biscuit firing on the degreased blank to obtain the atomized ceramic.

And (3) performing bisque firing on the degreased blank, wherein the bisque firing temperature is 1180 ℃, the heating rate is 2 ℃/min when the temperature is lower than 900 ℃, and the heating rate is 1 ℃/min when the temperature is higher than 900 ℃.

The process of bisque firing may include: and (3) placing the degreased blank body in a high-temperature biscuit firing furnace, and heating the degreased blank body from room temperature to 1180 ℃ in an atmospheric environment, wherein the biscuit firing time is about 8-10 h, so as to obtain a presintered blank body.

And sintering and molding the prepared presintering green body to obtain the atomized ceramic.

Wherein the sintering temperature is 1010 ℃, the heating rate is 3 ℃/min when the temperature is lower than 700 ℃, the heating rate is 2 ℃/min when the temperature is higher than 700 ℃, and the heat preservation time is about 2 hours.

Optionally, in this step, a heating film may be printed on the atomized ceramic, and the atomized ceramic and the heating film may be integrally formed by heat treatment.

Specifically, thick film paste used as a heating film can be silk-screened on the surface of a lyophile layer on atomized ceramic, the atomized ceramic printed with the thick film paste is dried and then is placed in a vacuum sintering furnace for integrated sintering molding, and the atomized ceramic integrated with the heating film is obtained.

Finally, cutting the sintered atomized ceramic according to the required size to obtain the atomized ceramic with any shape.

Among the atomized ceramics prepared through the embodiment, the atomized ceramics comprises a matrix layer, a liquid storage layer and a lyophile layer which are sequentially laminated, and a heating film is integrally formed on the lyophile layer. Wherein, the matrix layer, the liquid storage layer and the lyophile layer each have a porous structure with specific pore diameters and porosities.

Optionally, the porosity of the air holes of the matrix layer is 55-60%, and the aperture is 10-25 μm; the porosity of the pores of the liquid storage layer 120 is 60-70%, and the pore diameter is 30-50 mu m; the porosity of the pores of the lyophile layer 130 is 55-65%, and the pore diameter is 10-30 μm.

Through the mode, the prepared atomized ceramic is provided with the matrix layer, the liquid storage layer, the lyophile layer and the heating film which are sequentially stacked. Thus, in this embodiment, the preform is formed by combining the base layer preform, and the lyophile layer preform together by isostatic pressing, and degreasing, bisque firing, and sintering the preform. The atomized ceramic prepared by the preparation method in the embodiment has the characteristics of uniformity, compactness and uniform shrinkage in all directions, each layer of the atomized ceramic has specific aperture and porosity, and the oriented arrangement and the direction consistency of the air holes are good, so that the atomized ceramic has the advantages of high strength and good stability, and when the atomized ceramic is applied to an electronic atomizer, the generated aerosol has better mouthfeel.

Referring to fig. 3 and 4, fig. 3 is a schematic structural view of an atomized ceramic embodiment according to the present application, and fig. 4 is a schematic structural view of a section A-A in the embodiment of fig. 3.

The application also provides the atomized ceramic 10, and the atomized ceramic 10 is prepared by the preparation method of the atomized ceramic.

In the present embodiment, the atomized ceramic 10 includes a ceramic body 100 and a heat generating member 200.

Wherein the ceramic body 100 is a ceramic material, the ceramic body 100 has a plurality of porous structures 101 therein which communicate with each other and with the surface of the material. Since the atomized ceramic 10 in this embodiment is manufactured by the above-mentioned method for manufacturing atomized ceramic, the porous structures 101 in the ceramic body 100 are arranged in order, and the pore sizes of each functional layer of the ceramic body 100 are uniform.

Specifically, the ceramic body 100 includes a base layer 110, a reservoir layer 120, and a lyophile layer 130, where the base layer 110, the reservoir layer 120, and the lyophile layer 130 are stacked.

The heat generating member 200 is made of a material having high resistivity, and the heat generating member 200 may be formed on the ceramic body 100 by means of a silk-screen heat generating member paste. Alternatively, the heating element 200 may be a heating net or a heating wire.

The base layer 110 is used for guaranteeing the strength of the atomized ceramic 10, avoiding the problem of ceramic powder falling, and the base layer 110 can be connected with a liquid storage part in the electronic atomizer.

The thickness of the base layer 110 is 0.2 to 1mm. The matrix layer 110 has a porous structure in which pores of the matrix layer 110 are regularly arranged, the porosity of the pores of the matrix layer 110 is 55 to 60%, and the pore diameter is 10 to 25 μm.

The liquid storage layer 120 is used for storing the atomized substrate, and when the electronic atomizer is in a non-working state, a part of the atomized substrate is temporarily stored in the liquid storage layer 120. The atomized matrix stored in the liquid storage layer 120 can be rapidly transferred to the lyophile layer 130 and the heating element 200 during the operation of the electronic atomizer, and the liquid guiding area can be enlarged, so that the atomized matrix can fully enter the lyophile layer 130, and the liquid guiding speed of the atomized ceramic 10 is improved.

The thickness of the liquid storage layer 120 is 0.5-2 mm, the liquid storage layer 120 has a porous structure which is distributed in a regular arrangement, the porosity of the pores of the liquid storage layer 120 is 60-70%, and the pore diameter is 30-50 mu m.

The lyophile layer 130 is used to screen print the heat generating film and guide the atomized matrix stored in the liquid storage layer 120 into the heat generating member 200, preventing dry burning. Extending the useful life of the atomized ceramic 10.

The thickness of the lyophile layer 130 is 0.3-0.5 mm, the lyophile layer 130 has regularly arranged and distributed pores, the porosity of the lyophile layer 130 pores is 55-65%, and the pore diameter is 10-30 μm.

The present application further provides an embodiment of the atomizer, referring to fig. 5 and 6, fig. 5 is a schematic structural diagram of an embodiment of the atomizer of the present application, and fig. 6 is a schematic explosion structural diagram of an embodiment of the atomizer of the present application.

In this embodiment, the atomizer 1000 includes an atomized ceramic 10 provided by the present application. The atomized ceramic 10 has a porous structure, and pores in the porous structures of the matrix layer, the liquid storage layer and the hydrophilic layer in the atomized ceramic 10 are aligned and have consistent pore sizes, so that the atomization effect of the atomizer 1000 is stable, the produced aerosol has consistent taste, and no pause and contusion is caused.

In addition, the atomizer 1000 may further include a suction nozzle 20, a housing 30, a battery assembly 40, a reservoir 50, and a seal 60.

The atomized ceramic 10 is mounted within a reservoir 50, the reservoir 50 storing an atomized matrix. The atomized matrix stored in the reservoir 50 can be transferred to the atomized ceramic 10 for heated atomization.

The battery assembly 40 is connected to the liquid storage device 50 and is electrically connected to a heat generating member (not shown) provided on the atomized ceramic 10 for supplying electric power required for generating heat to the heat generating member.

A sealing member 60 is disposed between the battery assembly 40 and the reservoir 50 for sealing a gap between the battery assembly 40 and the reservoir 50, and the sealing member 60 may be provided with an air hole (not shown) communicating the battery assembly 40 and the reservoir 50.

The housing is wrapped outside the battery assembly 40 and the liquid storage device 50 and is connected with the suction nozzle 20, the suction nozzle 20 is provided with an air outlet (not shown in the figure), the air outlet is communicated with an atomization space where the atomized ceramic 10 is located, and a user can suck aerosol through the air outlet on the suction nozzle 20.

The air holes in the atomized ceramic 10 are arranged in a directional manner and have good direction consistency, so that the atomized ceramic 10 has the advantages of high strength and good stability, and aerosol generated by the atomizer 1000 in the embodiment is smooth and stable, has a consistent taste, and greatly improves the suction experience of a user.

In the description of the present application, a description of the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, mechanism, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, mechanisms, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.

The foregoing description is only illustrative of the present application and is not intended to limit the scope of the application, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present application.

Claims

1. A method of preparing an atomized ceramic, comprising:

and sequentially stacking the matrix layer blank, the liquid storage layer blank and the lyophile layer blank, isostatic pressing in a vacuum environment to obtain a prefabricated biscuit, and sintering the prefabricated biscuit to obtain atomized ceramic, wherein the atomized ceramic comprises a matrix layer, a liquid storage layer and a lyophile layer which are sequentially arranged.

2. The method according to claim 1, wherein,

the substrate layer comprises the following raw materials in percentage by mass: 40-45% of diatomite, 10-15% of quartz sand, 5-10% of kaolin, 2-5% of alumina, 1-3% of PVA, 0.1-1% of lubricant, 10-15% of glass powder and 20-25% of starch;

3. The method according to claim 1, wherein,

the liquid storage layer comprises the following raw materials in mass ratio: 55-60% of diatomite, 1-3% of quartz sand, 2-5% of wollastonite, 1-3% of PVA, 0.1-1% of lubricant, 10-15% of glass powder and 28-32% of starch;

4. The method according to claim 1, wherein,

the lyophile layer raw materials comprise the following raw materials in mass ratio: 45-50% of diatomite, 15-20% of purple clay, 1-3% of PVA, 0.1-1% of lubricant, 5-10% of glass powder and 20-25% of starch;

5. The process according to any one of claim 1 to 4,

the thickness of the matrix layer is 0.2-1 mm, the porosity of the matrix layer is 55-60%, and the aperture is 10-25 mu m;

6. The method according to claim 1, wherein the sintering of the preform to produce an atomized ceramic comprises:

removing glue from the prefabricated biscuit to obtain a degreasing blank;

7. The method of claim 6, wherein the step of bisque firing the degreased blank to obtain the atomized ceramic further comprises:

and silk-screen printing thick film slurry on the hydrophilic layer of the atomized ceramic, and sintering and forming after drying the slurry.

8. The method according to claim 1, wherein,

the preform comprises the following raw materials in percentage by mass: 40 to 70 percent of diatomite, 0 to 20 percent of wollastonite, 0 to 20 percent of quartz sand, 0 to 20 percent of purple clay, 0 to 10 percent of kaolin, 0 to 10 percent of alumina, 0 to 5 percent of vermiculite, 5 to 30 percent of sintering aid, 1 to 5 percent of binder, 0.1 to 1 percent of lubricant and 5 to 40 percent of pore-forming agent,

the sintering aid comprises one or more of zinc oxide, titanium dioxide, silicon dioxide, sodium silicate, lithium carbonate and glass powder; the binder comprises one or more of PVA and PVB; the lubricant comprises one or more of polyamide wax and polyethylene wax; the pore-forming agent comprises one or more of polyvinyl chloride microspheres, polymethyl methacrylate, flour, starch and carbon powder.

9. An atomized ceramic, characterized in that the atomized ceramic is produced by the production method according to any one of claims 1 to 8.

10. A nebulizer comprising the atomized ceramic of claim 9.