CN115626819A - Porous ceramic atomizing core and preparation method thereof - Google Patents
Porous ceramic atomizing core and preparation method thereof Download PDFInfo
- Publication number
- CN115626819A CN115626819A CN202211392746.2A CN202211392746A CN115626819A CN 115626819 A CN115626819 A CN 115626819A CN 202211392746 A CN202211392746 A CN 202211392746A CN 115626819 A CN115626819 A CN 115626819A
- Authority
- CN
- China
- Prior art keywords
- porous ceramic
- ceramic body
- heating net
- binder
- atomizing core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 262
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 136
- 239000011230 binding agent Substances 0.000 claims abstract description 80
- 239000007864 aqueous solution Substances 0.000 claims abstract description 39
- 239000000853 adhesive Substances 0.000 claims abstract description 27
- 230000001070 adhesive effect Effects 0.000 claims abstract description 27
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 12
- 238000002791 soaking Methods 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims description 51
- 238000005245 sintering Methods 0.000 claims description 40
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 238000005469 granulation Methods 0.000 claims description 17
- 230000003179 granulation Effects 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 12
- 238000000498 ball milling Methods 0.000 claims description 11
- 238000005498 polishing Methods 0.000 claims description 11
- 238000000889 atomisation Methods 0.000 claims description 10
- 239000003921 oil Substances 0.000 claims description 10
- 239000000243 solution Substances 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 7
- 239000012459 cleaning agent Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 6
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims description 6
- 239000004115 Sodium Silicate Substances 0.000 claims description 5
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229920002261 Corn starch Polymers 0.000 claims description 3
- 229920002472 Starch Polymers 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
- 239000008120 corn starch Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000010433 feldspar Substances 0.000 claims description 3
- 239000010451 perlite Substances 0.000 claims description 3
- 235000019362 perlite Nutrition 0.000 claims description 3
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 claims description 3
- 229920001592 potato starch Polymers 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229940100445 wheat starch Drugs 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 description 23
- 239000002184 metal Substances 0.000 description 23
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 239000004372 Polyvinyl alcohol Substances 0.000 description 8
- 238000005240 physical vapour deposition Methods 0.000 description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000007639 printing Methods 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 4
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 description 4
- 239000000443 aerosol Substances 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 239000003571 electronic cigarette Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000792 Monel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910000856 hastalloy Inorganic materials 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- -1 iron-chromium-aluminum Chemical compound 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B35/14—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 based on silica
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/70—Manufacture
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B35/10—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 based on aluminium oxide
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B35/16—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 based on silicates other than clay
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B38/068—Carbonaceous materials, e.g. coal, carbon, graphite, hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- 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
- C04B2235/3427—Silicates other than clay, e.g. water glass
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- 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
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3472—Alkali metal alumino-silicates other than clay, e.g. spodumene, alkali feldspars such as albite or orthoclase, micas such as muscovite, zeolites such as natrolite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- 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
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/36—Glass starting materials for making ceramics, e.g. silica glass
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6562—Heating rate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
- C04B2235/6567—Treatment time
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
The invention provides a porous ceramic atomizing core and a preparation method thereof, wherein the preparation method comprises the following steps: s10: preparing a porous ceramic body and a heating net; s20: soaking the heating net in an aqueous solution binder for a period of time to enable the aqueous solution binder to be attached to the surface of the heating net; coating a high-temperature adhesive on the surface of the porous ceramic body, attaching the heating net to the surface of the porous ceramic body coated with the high-temperature adhesive, and standing for a period of time to bond the heating net to the surface of the porous ceramic body; s30: and (3) dehydrating and drying the porous ceramic body bonded with the heating net, and curing the aqueous solution binder and the high-temperature binder on the heating net and the porous ceramic body to obtain the porous ceramic atomizing core.
Description
Technical Field
The invention relates to the technical field of electronic cigarettes, in particular to a porous ceramic atomizing core and a preparation method thereof.
Background
The aerosol generating device is also known as a virtual cigarette, an electronic cigarette, a steam cigarette and the like, and is mainly used for simulating smoking feeling on the premise of not influencing health so as to stop smoking or replace the cigarette. The atomizing core is the core assembly of the aerosol generating device, the existing atomizing core generally comprises a cotton core and a porous ceramic atomizing core, and the porous ceramic atomizing core has the advantages of easy assembly, stable performance and the like, and is widely applied to various aerosol generating devices.
From the combination mode of the metal that generates heat and porous ceramic body, the porous ceramic atomizing core that has now on the market can be divided into printing thick film porous ceramic atomizing core, etching piece integrated into one piece porous ceramic atomizing core and heater porous ceramic atomizing core. The etching sheet and the porous ceramic body are integrally formed and then combined together through high-temperature sintering. In the high-temperature sintering process, the metal etching sheet can generate oxidation and rust phenomena which have certain harm to human bodies; simultaneously, metal etching piece and porous ceramic body are because shrinkage factor inconsistent between them when the high temperature sintering, can make the joint position department of both appear the clearance to make both can not closely laminate, influence atomization efficiency, many times of high temperature sintering also can make porous ceramic body appear fracture, deformation scheduling problem easily moreover.
Disclosure of Invention
The invention aims to provide a porous ceramic atomizing core and a preparation method thereof, wherein a heating net is fixed on the surface of a porous ceramic body through bonding, high-temperature sintering is not needed, the phenomenon of oxidation and rusting of the heating net can be avoided, and the heating net is tightly attached to the surface of the porous ceramic body, so that the temperature uniformity of the porous ceramic atomizing core is good, the atomizing efficiency is high, and the production yield is high.
The invention provides a preparation method of a porous ceramic atomizing core, which comprises the following steps:
s10: preparing a porous ceramic body and a heating net;
s20: soaking the heating net in an aqueous solution binder for a period of time to enable the aqueous solution binder to be attached to the surface of the heating net; coating a high-temperature adhesive on the surface of the porous ceramic body, attaching the heating net to the surface of the porous ceramic body coated with the high-temperature adhesive, and standing for a period of time to bond the heating net to the surface of the porous ceramic body;
s30: and (3) dehydrating and drying the porous ceramic body bonded with the heating net, and curing the aqueous solution binder and the high-temperature binder on the heating net and the porous ceramic body to obtain the porous ceramic atomizing core.
In an implementable manner, in the above S10 step, the method for preparing the porous ceramic body comprises:
s111: mixing porous ceramic aggregate, pore-forming agent and sintering aid, performing ball milling to obtain ceramic powder, adding a certain amount of PVA solution serving as a binder into the ceramic powder, and uniformly mixing to obtain granulated powder; the porous ceramic aggregate is at least one of silicon dioxide, alumina, quartz, diatomite, medical stone and perlite, the pore-forming agent is at least one of PMMA, corn starch, potato starch, wheat starch, wood powder and carbon powder, and the sintering aid is at least one of sodium-potassium feldspar, cooked talcum powder, glass powder, sodium silicate and low-melting-point oxide;
s112: placing the granulation powder into a mold, paving the granulation powder, then placing the mold into a dry pressing forming machine for forming, and demolding to obtain a porous ceramic green body;
s113: and carrying out glue discharging treatment on the porous ceramic green body, and then sintering the porous ceramic green body to obtain the porous ceramic body.
In an achievable mode, the mass fraction of the porous ceramic aggregate is 50-70%, the mass fraction of the pore-forming agent is 0-25%, and the mass fraction of the sintering aid is 0-25%; the particle size of the porous ceramic aggregate is 20-50 microns, the particle size of the pore-forming agent is 20-50 microns, and the particle size of the sintering aid is 0-15 microns.
In an implementable manner, the PVA solution is added in an amount of 5 to 10 parts per 100 parts of the ceramic powder in the above S111 step.
In an implementable manner, in the step S10, the method for preparing the heat generating net comprises:
coating conductive paste on a metal net, and filling the conductive paste into meshes of the metal net; then, drying the metal net, and obtaining the heating net after the conductive slurry on the metal net is solidified; wherein, the position of the metal net coated with the conductive paste is used as an electrode of the heating net.
In an implementable manner, in the step S20, before the high-temperature adhesive is coated on the surface of the porous ceramic body, the surface of the porous ceramic body is cleaned with a cleaning agent to remove the oil stains attached on the surface of the porous ceramic body.
In an implementable manner, in the step S20, before the high-temperature adhesive is coated on the surface of the porous ceramic body, the surface of the porous ceramic body is polished by a polishing machine to improve the flatness of the surface of the porous ceramic body.
In an implementable manner, in the step S30, the step of dehydrating the porous ceramic body to which the heat generating net is bonded includes:
and heating or baking the porous ceramic body in a water-proof way at the temperature of 80-100 ℃ for a period of time so as to preliminarily remove the moisture in the aqueous solution binder and the high-temperature binder.
In an implementable manner, in the step S30, the step of drying the porous ceramic body to which the heat generating net is bonded includes:
baking the porous ceramic body at a temperature of 120 ℃ to 180 ℃ for a period of time to cure the aqueous solution binder and the high temperature binder.
In one realizable manner, the aqueous solution binder and the high temperature binder are both inorganic nano high temperature resistant binders.
In a realizable manner, in the step S20, the high-temperature binder is coated to a thickness of 5 to 10 micrometers, and the aqueous solution binder attached to the surface of the heating screen is coated to a thickness of 1 to 10 micrometers.
In one implementation, the mesh size of the heating net is 200-1000 meshes.
The invention also provides a porous ceramic atomizing core which is manufactured by adopting the preparation method of the porous ceramic atomizing core; the porous ceramic atomization core comprises a porous ceramic body and a heating net, and the heating net is bonded on the surface of the porous ceramic body.
According to the porous ceramic atomizing core and the preparation method thereof, the heating net is bonded and fixed on the surface of the porous ceramic body through the high-temperature binder, high-temperature sintering is not needed, the phenomenon of oxidation and rusting of the heating net can be avoided, and the heating net is tightly attached to the surface of the porous ceramic body, so that the temperature uniformity of the porous ceramic atomizing core is good, the atomizing efficiency is high, and the production yield is high. Meanwhile, the sintering times of the porous ceramic body can be reduced through a bonding mode, and the phenomena of cracking, deformation, pore closing, porosity reduction and the like of the porous ceramic body due to multiple sintering melting are avoided.
Meanwhile, when the heating net is bonded, the heating net is firstly placed in the aqueous solution binder to be soaked for a period of time, so that the aqueous solution binder is attached to the surface of the heating net, when the heating net is bonded with the high-temperature binder, the aqueous solution binder can be filled in a gap between the heating net and the high-temperature binder, the situations of bubbles, gaps and the like are reduced, the laminating property between the heating net and the porous ceramic body is further increased, meanwhile, the connecting area between the heating net and the high-temperature binder can be increased, the bonding strength and the heat transfer efficiency between the heating net and the porous ceramic body are improved, the situation that the heating net falls off is avoided, and the atomization efficiency is improved.
Drawings
FIG. 1 is a schematic perspective view of a porous ceramic atomizing core according to an embodiment of the present invention.
Fig. 2 is a side view of fig. 1.
FIG. 3 is a schematic view of a manufacturing process of a porous ceramic atomizing core according to an embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The terms of orientation, up, down, left, right, front, back, top, bottom, and the like (if any) referred to in the specification and claims of the present invention are defined by the positions of structures in the drawings and the positions of the structures relative to each other, only for the sake of clarity and convenience in describing the technical solutions. It is to be understood that the use of the directional terms should not be taken to limit the scope of the invention as claimed.
Fig. 1 is a schematic perspective view of a porous ceramic atomizing core according to an embodiment of the present invention, fig. 2 is a side view of fig. 1, and fig. 3 is a schematic flow chart of a manufacturing process of the porous ceramic atomizing core according to the embodiment of the present invention. As shown in fig. 1 to fig. 3, a method for preparing a porous ceramic atomizing core according to an embodiment of the present invention includes the following steps:
s10: preparing a porous ceramic body 1 and a heating net 2;
s20: soaking the heating net 2 in the aqueous solution binder 4 for a certain period of time (for example, soaking for 2 to 4 hours) to attach the aqueous solution binder 4 to the surface of the heating net 2; coating a high-temperature adhesive 3 on the surface of the porous ceramic body 1, attaching the heating net 2 to the surface of the porous ceramic body 1 coated with the high-temperature adhesive 3, and standing for a period of time (for example, standing for more than 16 hours at normal temperature) to adhere the heating net 2 to the surface of the porous ceramic body 1;
s30: and (3) dehydrating and drying the porous ceramic body 1 bonded with the heating net 2, and curing the heating net 2 and the aqueous solution binder 4 and the high-temperature binder 3 on the porous ceramic body 1 to obtain the porous ceramic atomizing core.
It should be noted that, in this embodiment, fig. 1 and fig. 2 only illustrate the structure of a single porous ceramic atomizing core, and in actual production and application, the sizes of the porous ceramic body 1 and the heating net 2 can be increased as needed to prepare a large-sized porous ceramic atomizing core, and then the large-sized porous ceramic atomizing core is cut, so as to obtain a plurality of small-sized porous ceramic atomizing cores, which is suitable for mass production and manufacturing.
Specifically, the preparation method of porous ceramic atomizing core that this embodiment provided adopts heating net 2 as the heating film, because heating net 2 has excellent thermal properties such as high coefficient of heat conductivity, high heat transfer area, heat reinforcing characteristic, high porosity, can promote ceramic heating, atomizing efficiency as heating film and porous ceramic body 1 integration together with heating net 2, and heating net 2's thickness can be controlled within the micron order moreover, and thickness is very even, can solve the temperature that generates heat inhomogeneous, the problem that the efficiency of generating heat is low. Meanwhile, the heating net 2 is bonded and fixed on the surface of the porous ceramic body 1 through the high-temperature binder 3, high-temperature sintering is not needed, the phenomenon that the heating net 2 is oxidized and rusted can be avoided, and the heating net 2 is tightly attached to the surface of the porous ceramic body 1, so that the temperature uniformity of the porous ceramic atomizing core is good, the atomizing efficiency is high, and the production yield is high. Meanwhile, the sintering frequency of the porous ceramic body 1 can be reduced through a bonding mode, and the phenomena of cracking, deformation, closed pores, reduction of porosity and the like caused by multiple sintering and melting of the porous ceramic body 1 are avoided.
Moreover, during bonding, the heating net 2 is firstly placed in the aqueous solution binder 4 for soaking for a period of time, so that the aqueous solution binder 4 is attached to the surface of the heating net 2, and therefore, when the heating net 2 is bonded with the high-temperature binder 3, the aqueous solution binder 4 can be filled in a gap between the heating net 2 and the high-temperature binder 3, so that the situations of bubbles, gaps and the like are reduced, the bonding property between the heating net 2 and the porous ceramic body 1 is further increased, meanwhile, the connecting area between the heating net 2 and the high-temperature binder 3 can be increased (the aqueous solution binder 4 can be filled in meshes of the heating net 2, so that the connecting area between the heating net 2 and the high-temperature binder 3 is increased, the heat transfer area between the heating net 2 and the high-temperature binder 3 is increased), the bonding strength and the heat transfer efficiency between the heating net 2 and the porous ceramic body 1 are improved, the situation that the heating net 2 falls off is avoided, and the atomization efficiency is improved.
As an embodiment, in the step S10, the method for preparing the porous ceramic body 1 includes:
s111: mixing porous ceramic aggregate, pore-forming agent and sintering aid, performing ball milling to obtain ceramic powder, adding a certain amount of PVA (polyvinyl alcohol) solution serving as a binder into the ceramic powder, and uniformly mixing to obtain granulated powder; wherein the porous ceramic aggregate is at least one of silicon dioxide, alumina, quartz, diatomite, medical stone and perlite, the pore-forming agent is at least one of PMMA, corn starch, potato starch, wheat starch, wood powder and carbon powder, and the combustion-supporting agent is at least one of sodium-potassium feldspar, cooked talcum powder, glass powder, sodium silicate and low-melting-point oxide;
s112: placing the granulation powder into a mould, paving the granulation powder, then placing the mould into a dry pressing forming machine for forming, and demoulding to obtain a porous ceramic green body;
s113: and (3) carrying out glue discharging treatment on the porous ceramic green body, and then sintering the porous ceramic green body to obtain the porous ceramic body 1.
Specifically, porous ceramic body 1 adopts dry pressing to shape and can promote its structural strength, and the sintering time is short, need not pass through long-time binder removal, promotes production efficiency to can reduce porous ceramic deformation, fall phenomenons such as powder, fracture and appear, promote the yields.
In an embodiment, in the step S111, the mass fractions of the components in the ceramic powder are: the mass fraction of the porous ceramic aggregate is 50-70%, the mass fraction of the pore-forming agent is 0-25%, and the mass fraction of the sintering aid is 0-25%; the particle size of the porous ceramic aggregate is 20-50 microns, the particle size of the pore-forming agent is 20-50 microns, and the particle size of the sintering aid is 0-15 microns.
In one embodiment, the PVA solution is added in an amount of 5 to 10 parts per 100 parts of the ceramic powder in the step S111.
In one embodiment, in the step S111, the rotation speed of the ball mill during ball milling is 0 to 300 rpm, and the ball milling time is 0 to 4 hours.
In one embodiment, in the step S113, the concrete steps of performing the binder removal treatment and sintering on the porous ceramic green body include: keeping the porous ceramic green body at the temperature of 500-600 ℃ for 2-4 hours for glue removal treatment, wherein the heating rate is 0.5-1.0 ℃/min; then heating to 1300 ℃ at the heating rate of 2.0 ℃/min, and keeping the temperature for 2-4 hours, so as to sinter the porous ceramic green body.
As an embodiment, in the step S10, the method for manufacturing the heat generating net 2 includes:
coating conductive paste on the metal net in a spraying, printing or PVD (physical vapor deposition) process or other modes to enable the conductive paste to be filled in meshes of the metal net; then, drying the metal net, and obtaining a heating net 2 after the conductive slurry on the metal net is solidified; wherein the position of the metal mesh coated with the conductive paste is used as an electrode 21 of the heating mesh 2.
In one embodiment, the metal mesh is coated with conductive paste on opposite sides thereof, so that the electrodes 21 are formed on opposite sides of the heat generating mesh 2, and the electrodes 21 on the opposite sides are respectively used as positive and negative electrodes of the heat generating mesh 2.
In one embodiment, the metal mesh may be woven by plain weaving, twill weaving, mat weaving, resistance welding, or the like, and the metal mesh may be made of iron wire, zinc-plated wire, steel wire, copper wire, nickel wire, titanium wire, molybdenum wire, hastelloy, monel, iron-chromium-aluminum, tungsten wire, silver wire, or the like.
As an embodiment, the conductive paste may be a silver paste, a platinum paste, a gold paste, or the like.
As an embodiment, in the step S20, before the high-temperature adhesive 3 is coated on the surface of the porous ceramic body 1, the surface of the porous ceramic body 1 is polished by a polishing machine to improve the flatness of the surface of the porous ceramic body 1, so as to improve the adhesion between the heating net 2 and the porous ceramic body 1; at the same time, the porous ceramic body 1 can be adjusted in size to a desired thickness dimension (e.g., 2-3 mm) by polishing. After polishing, the porous ceramic body 1 is cleaned for use.
In one embodiment, in the step S20, before the high-temperature adhesive 3 is applied to the surface of the porous ceramic body 1, the surface of the porous ceramic body 1 is cleaned with a cleaning agent (for example, trichloroethylene or caustic soda) to remove oil stains attached to the surface of the porous ceramic body 1, thereby preventing the oil stains from affecting the viscosity of the high-temperature adhesive 3, improving the bonding reliability of the high-temperature adhesive 3, and improving the adhesion between the heat generation net 2 and the porous ceramic body 1.
In one embodiment, in the step S20, the high temperature adhesive 3 is coated to a thickness of 5 to 10 μm. The thickness of the aqueous solution binder 4 attached to the surface of the heating net 2 is 1 to 10 μm.
In one embodiment, the step S30 includes a step of performing a dehydration process on the porous ceramic body 1, including: the porous ceramic body 1 is subjected to water-proof heating at a temperature of 80 to 100 c (e.g., about 90 c) (i.e., the porous ceramic body 1 is placed in a container, and then the container is placed in hot water for heating, without directly placing the porous ceramic body 1 in the hot water for heating) or is placed in an oven for baking for a certain period of time (e.g., one hour) to preliminarily remove moisture from the aqueous solution binder 4 and the high-temperature binder 3.
In one embodiment, the step S30 includes a step of drying the porous ceramic body 1, including: the porous ceramic body 1 is baked in an oven at a temperature of 120 c to 180 c (e.g., 150 c) for a period of time (e.g., one hour) to cure the aqueous solution binder 4 and the high temperature binder 3.
In one embodiment, the aqueous solution binder 4 and the high temperature binder 3 are both inorganic nano high temperature resistant binders. The inorganic nano high-temperature-resistant adhesive not only has good bonding effect on materials such as metal, ceramics and the like, but also has excellent high-temperature resistance, and can keep good bonding performance without failure in a long-term high-temperature use environment. Of course, in other embodiments, the aqueous solution binder 4 and the high temperature binder 3 may also be other kinds of high temperature resistant adhesives.
In one embodiment, the mesh number of the heating net 2 is 200-1000 meshes.
As shown in fig. 1 and fig. 2, an embodiment of the present invention further provides a porous ceramic atomizing core, which is manufactured by the above method for manufacturing a porous ceramic atomizing core. The porous ceramic atomization core comprises a porous ceramic body 1 and a heating net 2, wherein the heating net 2 is adhered to the surface of the porous ceramic body 1 through an aqueous solution adhesive 4 and a high-temperature adhesive 3.
The porous ceramic atomizing core and the preparation method thereof provided by the embodiment of the invention have the advantages that:
1. the heating net 2 is adopted as the heating film, and as the heating net 2 has excellent thermal properties such as high heat conductivity coefficient, high heat exchange area, heat enhancement property, high porosity and the like, the efficiency of ceramic heating and atomization can be improved by integrating the heating net 2 as the heating film with the porous ceramic body 1, and the thickness of the heating net 2 can be controlled within micron level and is very uniform, so that the problems of non-uniform heating temperature and low heating efficiency can be solved;
2. heating net 2 is fixed on porous ceramic body 1's surface through the bonding of high temperature binder 3, need not to carry out high temperature sintering, not only can avoid heating net 2 the rusty phenomenon of oxidation to appear, heating net 2 closely laminates with porous ceramic body 1's surface moreover for the temperature homogeneity of porous ceramic atomizing core is good, and atomization efficiency is high, and the production yield is high moreover. Meanwhile, the sintering frequency of the porous ceramic body 1 can be reduced by a bonding mode, and the phenomena of cracking, deformation, closed pores, reduction of porosity and the like caused by multiple sintering and melting of the porous ceramic body 1 are avoided;
3. when the heating net 2 is bonded, the heating net 2 is firstly placed in the aqueous solution binder 4 to be soaked for a period of time, so that the aqueous solution binder 4 is attached to the surface of the heating net 2, and when the heating net 2 is bonded with the high-temperature binder 3, the aqueous solution binder 4 can be filled in a gap between the heating net 2 and the high-temperature binder 3, so that the occurrence of bubbles, gaps and the like is reduced, the bonding property between the heating net 2 and the porous ceramic body 1 is further increased, meanwhile, the connecting area between the heating net 2 and the high-temperature binder 3 can be increased, the bonding strength and the heat transfer efficiency between the heating net 2 and the porous ceramic body 1 are improved, the falling-off condition of the heating net 2 is avoided, and the atomization efficiency is improved;
4. porous ceramic body 1 adopts dry pressing to become can promote its structural strength, and the sintering time is short, need not pass through long-time binder removal, promotes production efficiency to can reduce porous ceramic deformation, fall phenomenons such as powder, fracture and appear, promote the yields.
First embodiment
The preparation method of the porous ceramic atomizing core provided by the embodiment comprises the following steps:
1. preparation of porous ceramic body 1
(1) Mixing porous ceramic aggregate, a pore-forming agent and a sintering aid, and then carrying out ball milling to obtain ceramic powder, wherein the ball milling time is 4 hours and the rotating speed is 200 r/min; wherein the mass fraction of the porous ceramic aggregate is 65% (comprising 20% of diatomite, 20% of medical stone and 25% of amorphous silica, the particle diameters of the diatomite, the medical stone and the amorphous silica are 25 micrometers), the mass fraction of the pore-forming agent is 22%, and the mass fraction of the sintering aid is 13%; the pore-forming agent is PMMA with the particle size of 30 microns; the sintering aid is prepared from cooked talcum powder, glass powder and sodium silicate, and the particle size is 10 microns.
(2) Taking 100 parts of the prepared ceramic powder, adding 8 parts of PVA solution into the ceramic powder as a binder, and uniformly mixing to obtain granulated powder; and then weighing 30g of granulation powder, putting the granulation powder into a mold, paving the granulation powder by using a jig, then putting the mold into a dry pressing forming machine for forming, and demoulding to obtain the porous ceramic green body.
(3) Keeping the obtained porous ceramic green body at the temperature of 600 ℃ for 2 hours for glue removal treatment, wherein the heating rate is 0.5 ℃/min; and then heating to 1300 ℃ at the heating rate of 2.0 ℃/min, and keeping the temperature for 2 hours to sinter the porous ceramic green body to obtain the porous ceramic body 1.
2. Preparation of porous ceramic atomizing core
(1) Carrying out double-side polishing treatment on the prepared porous ceramic body 1 by using a polishing machine until the designed thickness is 3mm, and then cleaning for later use; and cleaning the surface of the porous ceramic body 1 with a cleaning agent (e.g., trichloroethylene or caustic soda) to remove oil stains attached to the surface of the porous ceramic body 1.
(2) And coating the conductive slurry on the metal mesh in a spraying, printing or PVD (physical vapor deposition) process and other modes, and then drying the metal mesh to obtain the heating mesh 2.
(3) Soaking the heating net 2 in the aqueous solution binder 4 for 2 hours, wherein the mesh number of the heating net 2 is 400 meshes, and the thickness is 0.3mm; coating a layer of high-temperature adhesive 3 on the surface of the porous ceramic body 1, wherein the coating thickness is 10 microns, attaching the heating net 2 to the surface of the porous ceramic body 1 coated with the high-temperature adhesive 3, and standing at normal temperature for more than 16 hours.
(4) After the standing is finished, heating the porous ceramic body 1 by hot water at about 90 ℃ in a waterproof manner for one hour, or baking the porous ceramic body 1 in an oven at 90 ℃ for one hour to dehydrate the porous ceramic body 1 bonded with the heating net 2; then the porous ceramic body 1 is baked in an oven at a temperature of 150 ℃ for one hour; and then taking out the porous ceramic body 1, and naturally cooling the porous ceramic body at normal temperature to obtain the porous ceramic atomization core.
Second embodiment
The preparation method of the porous ceramic atomizing core provided by the embodiment comprises the following steps:
1. preparation of porous ceramic body 1
(1) Mixing porous ceramic aggregate, a pore-forming agent and a sintering aid, and then carrying out ball milling to obtain ceramic powder, wherein the ball milling time is 4 hours and the rotating speed is 200 r/min; wherein the mass fraction of the porous ceramic aggregate is 60% (comprising 25% of medical stone and 35% of amorphous silicon dioxide, the grain diameters of the medical stone and the amorphous silicon dioxide are both 25 micrometers), the mass fraction of the pore-forming agent is 20%, and the mass fraction of the sintering aid is 20%; the pore-forming agent is PMMA with the particle size of 30 microns; the sintering aid is glass powder with the particle size of 5 microns.
(2) Taking 100 parts of the prepared ceramic powder, adding 8 parts of PVA solution into the ceramic powder as a binder, and uniformly mixing to obtain granulated powder; and then weighing 30g of granulation powder, putting the granulation powder into a mold, paving the granulation powder by using a jig, then putting the mold into a dry pressing forming machine for forming, and demoulding to obtain the porous ceramic green body.
(3) Keeping the obtained porous ceramic green body at the temperature of 600 ℃ for 2 hours for glue removal treatment, wherein the heating rate is 0.5 ℃/min; and then heating to 1300 ℃ at the heating rate of 2.0 ℃/min, and keeping the temperature for 2 hours to sinter the porous ceramic green body to obtain the porous ceramic body 1.
2. Preparation of porous ceramic atomizing core
(1) Carrying out double-side polishing treatment on the prepared porous ceramic body 1 by using a polishing machine until the designed thickness is 3mm, and then cleaning for later use; and cleaning the surface of the porous ceramic body 1 with a cleaning agent (e.g., trichloroethylene or caustic soda) to remove oil stains attached to the surface of the porous ceramic body 1.
(2) And coating the conductive slurry on the metal mesh in a spraying, printing or PVD (physical vapor deposition) process and other modes, and then drying the metal mesh to obtain the heating mesh 2.
(3) Soaking the heating net 2 in the aqueous solution binder 4 for 2 hours, wherein the mesh number of the heating net 2 is 300 meshes, and the thickness is 0.3mm; coating a layer of high-temperature adhesive 3 on the surface of the porous ceramic body 1, wherein the coating thickness is 10 microns, attaching the heating net 2 to the surface of the porous ceramic body 1 coated with the high-temperature adhesive 3, and standing at normal temperature for more than 16 hours.
(4) After the standing is finished, heating the porous ceramic body 1 by hot water at about 90 ℃ in a waterproof manner for one hour, or baking the porous ceramic body 1 in an oven at 90 ℃ for one hour to dehydrate the porous ceramic body 1 bonded with the heating net 2; then the porous ceramic body 1 is baked in an oven at a temperature of 150 ℃ for one hour; and then taking out the porous ceramic body 1 and placing the porous ceramic body at normal temperature for natural cooling to obtain the porous ceramic atomizing core.
Third embodiment
The preparation method of the porous ceramic atomizing core provided by the embodiment comprises the following steps:
1. preparation of porous ceramic body 1
(1) Mixing porous ceramic aggregate, a pore-forming agent and a sintering aid, and then carrying out ball milling to obtain ceramic powder, wherein the ball milling time is 4 hours and the rotating speed is 200 r/min; wherein the mass fraction of the porous ceramic aggregate is 60% (including 25% of diatomite and 35% of amorphous silicon dioxide, the grain diameters of the diatomite and the amorphous silicon dioxide are both 25 micrometers), the mass fraction of the pore-forming agent is 25%, and the mass fraction of the sintering aid is 15%; the pore-forming agent is PMMA with the particle size of 30 microns; the sintering aid is prepared from cooked talcum powder, glass powder and sodium silicate, and the particle size is 5 microns.
(2) Taking 100 parts of the prepared ceramic powder, adding 8 parts of PVA solution into the ceramic powder as a binder, and uniformly mixing to obtain granulated powder; and then weighing 30g of granulation powder, putting the granulation powder into a mold, paving the granulation powder by using a jig, then putting the mold into a dry pressing forming machine for forming, and demoulding to obtain the porous ceramic green body.
(3) Keeping the obtained porous ceramic green body at the temperature of 600 ℃ for 2 hours to carry out glue removal treatment, wherein the heating rate is 0.5 ℃/min; and then heating to 1300 ℃ at the heating rate of 2.0 ℃/min, and keeping the temperature for 2 hours to sinter the porous ceramic green body to obtain the porous ceramic body 1.
2. Preparation of porous ceramic atomizing core
(1) Carrying out double-side polishing treatment on the prepared porous ceramic body 1 by using a polishing machine until the designed thickness is 3mm, and then cleaning for later use; and cleaning the surface of the porous ceramic body 1 with a cleaning agent (e.g., trichloroethylene or caustic soda) to remove oil stains attached to the surface of the porous ceramic body 1.
(2) And coating the conductive slurry on the metal mesh in a spraying, printing or PVD (physical vapor deposition) process and other modes, and then drying the metal mesh to obtain the heating mesh 2.
(3) Soaking the heating net 2 in the aqueous solution binder 4 for 2 hours, wherein the mesh number of the heating net 2 is 600 meshes, and the thickness is 0.3mm; coating a layer of high-temperature adhesive 3 on the surface of the porous ceramic body 1, wherein the coating thickness is 10 microns, attaching the heating net 2 to the surface of the porous ceramic body 1 coated with the high-temperature adhesive 3, and standing at normal temperature for more than 16 hours.
(4) After the standing is finished, heating the porous ceramic body 1 by hot water at about 90 ℃ in a waterproof manner for one hour, or baking the porous ceramic body 1 in an oven at 90 ℃ for one hour to dehydrate the porous ceramic body 1 bonded with the heating net 2; then the porous ceramic body 1 is baked in an oven at a temperature of 150 ℃ for one hour; and then taking out the porous ceramic body 1 and placing the porous ceramic body at normal temperature for natural cooling to obtain the porous ceramic atomizing core.
The porous ceramic atomizing cores obtained were tested, and the parameters of the porous ceramic atomizing cores obtained in the examples are shown in the following table:
| examples | Porosity (%) | Water absorption rate | Oil absorption (gram) | Oil guiding time (second) |
| First embodiment | 60.78 | 56.93 | 1.0235 | 16 |
| Second oneExamples | 56.41 | 47.52 | 0.9526 | 23 |
| Third embodiment | 59.79 | 55.34 | 1.0350 | 18 |
As can be seen from the table above, the porosity of the porous ceramic atomizing core in each embodiment is between 50% and 60%, the porosity is stable, the oil (smoke) guiding capability is strong, and the use requirement can be met.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and shall cover the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The preparation method of the porous ceramic atomizing core is characterized by comprising the following steps:
s10: preparing a porous ceramic body and a heating net;
s20: soaking the heating net in an aqueous solution binder for a period of time to enable the aqueous solution binder to be attached to the surface of the heating net; coating a high-temperature adhesive on the surface of the porous ceramic body, attaching the heating net to the surface of the porous ceramic body coated with the high-temperature adhesive, and standing for a period of time to bond the heating net to the surface of the porous ceramic body;
s30: and (3) dehydrating and drying the porous ceramic body bonded with the heating net, and curing the aqueous solution binder and the high-temperature binder on the heating net and the porous ceramic body to obtain the porous ceramic atomizing core.
2. The method of preparing a porous ceramic atomizing core according to claim 1, wherein in the step S10, the method of preparing the porous ceramic body comprises:
s111: mixing porous ceramic aggregate, a pore-forming agent and a sintering aid, then carrying out ball milling to obtain ceramic powder, then adding a certain amount of PVA solution into the ceramic powder as a binder, and uniformly mixing to obtain granulation powder; the porous ceramic aggregate is at least one of silicon dioxide, alumina, quartz, diatomite, medical stone and perlite, the pore-forming agent is at least one of PMMA, corn starch, potato starch, wheat starch, wood powder and carbon powder, and the sintering aid is at least one of sodium-potassium feldspar, cooked talcum powder, glass powder, sodium silicate and low-melting-point oxide;
s112: putting the granulation powder into a mold, paving the granulation powder, then putting the granulation powder into a dry pressing forming machine for forming, and demoulding to obtain a porous ceramic green body;
s113: and carrying out glue discharging treatment on the porous ceramic green body, and then sintering the porous ceramic green body to obtain the porous ceramic body.
3. The method for preparing the porous ceramic atomizing core according to claim 2, characterized in that the mass fraction of the porous ceramic aggregate is 50-70%, the mass fraction of the pore-forming agent is 0-25%, and the mass fraction of the sintering aid is 0-25%; the particle size of the porous ceramic aggregate is 20-50 microns, the particle size of the pore-forming agent is 20-50 microns, and the particle size of the sintering aid is 0-15 microns.
4. The method of claim 1, wherein in the step S20, before the high temperature adhesive is coated on the surface of the porous ceramic body, the surface of the porous ceramic body is cleaned with a cleaning agent to remove oil stains attached to the surface of the porous ceramic body.
5. The method of preparing a porous ceramic atomizing core according to claim 1, wherein in the step S20, before the high temperature adhesive is coated on the surface of the porous ceramic body, the surface of the porous ceramic body is polished by a polishing machine to improve the flatness of the surface of the porous ceramic body.
6. The method of manufacturing a porous ceramic atomizing core according to claim 1, wherein the step S30 of dehydrating the porous ceramic body to which the heat generating net is bonded includes the steps of:
and heating or baking the porous ceramic body at a temperature of 80-100 ℃ in a waterproof manner for a period of time to preliminarily remove moisture in the aqueous solution binder and the high-temperature binder.
7. The method for preparing a porous ceramic atomizing core according to claim 1, wherein the step S30 of drying the porous ceramic body to which the heat generating net is bonded includes the steps of:
baking the porous ceramic body at a temperature of 120 ℃ to 180 ℃ for a period of time to cure the aqueous solution binder and the high temperature binder.
8. The method for preparing the porous ceramic atomizing core according to claim 1, wherein the aqueous solution binder and the high-temperature binder are both inorganic nano high-temperature resistant binders.
9. The method of claim 1, wherein the high temperature binder is applied at a thickness of 5-10 microns and the aqueous solution binder attached to the surface of the heat-generating screen is applied at a thickness of 1-10 microns.
10. A porous ceramic atomizing core characterized by being manufactured by the method for manufacturing a porous ceramic atomizing core according to any one of claims 1 to 9; the porous ceramic atomization core comprises a porous ceramic body and a heating net, and the heating net is bonded on the surface of the porous ceramic body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211392746.2A CN115626819A (en) | 2022-11-08 | 2022-11-08 | Porous ceramic atomizing core and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211392746.2A CN115626819A (en) | 2022-11-08 | 2022-11-08 | Porous ceramic atomizing core and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115626819A true CN115626819A (en) | 2023-01-20 |
Family
ID=84908448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211392746.2A Pending CN115626819A (en) | 2022-11-08 | 2022-11-08 | Porous ceramic atomizing core and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115626819A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109608206A (en) * | 2018-11-14 | 2019-04-12 | 深圳市华诚达精密工业有限公司 | A kind of porous ceramic surface inlays the heater and preparation method thereof of fever mesh sheet |
| CN113455732A (en) * | 2021-07-15 | 2021-10-01 | 深圳市艾溹技术研究有限公司 | Heating element and manufacturing method thereof, atomizing assembly and atomizing device |
| CN114956861A (en) * | 2022-06-29 | 2022-08-30 | 深圳市吉迩科技有限公司 | Porous ceramic atomizing core, preparation method thereof and aerosol generating device |
| CN115159991A (en) * | 2022-07-18 | 2022-10-11 | 深圳市赛尔美电子科技有限公司 | Porous ceramic heating structure and preparation method thereof |
| CN115259888A (en) * | 2022-07-14 | 2022-11-01 | 深圳市赛尔美电子科技有限公司 | Preparation method of integrated ceramic atomizing core and ceramic atomizer |
-
2022
- 2022-11-08 CN CN202211392746.2A patent/CN115626819A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109608206A (en) * | 2018-11-14 | 2019-04-12 | 深圳市华诚达精密工业有限公司 | A kind of porous ceramic surface inlays the heater and preparation method thereof of fever mesh sheet |
| CN113455732A (en) * | 2021-07-15 | 2021-10-01 | 深圳市艾溹技术研究有限公司 | Heating element and manufacturing method thereof, atomizing assembly and atomizing device |
| CN114956861A (en) * | 2022-06-29 | 2022-08-30 | 深圳市吉迩科技有限公司 | Porous ceramic atomizing core, preparation method thereof and aerosol generating device |
| CN115259888A (en) * | 2022-07-14 | 2022-11-01 | 深圳市赛尔美电子科技有限公司 | Preparation method of integrated ceramic atomizing core and ceramic atomizer |
| CN115159991A (en) * | 2022-07-18 | 2022-10-11 | 深圳市赛尔美电子科技有限公司 | Porous ceramic heating structure and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 吴任金: "改进电子烟多孔陶瓷雾化芯制作工艺的研究", no. 6, pages 95 - 96 * |
| 周肇峰等: "新型烟草制品专利微导航探索与实践", 中国原子能出版社, pages: 150 - 151 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107752129B (en) | Ultrasonic atomization sheet and manufacturing method thereof, ultrasonic atomizer and electronic cigarette | |
| JP6326060B2 (en) | Method for producing three-dimensional glass-ceramic article | |
| CN105008298A (en) | Blank for dental purposes | |
| WO1999057074A1 (en) | Glass panel, method of manufacturing glass panel, and spacer used for glass panel | |
| CN114451585A (en) | Atomizing core, preparation method thereof, atomizer and electronic atomizing device | |
| JP2008138287A (en) | Method for producing noble metal decoration, and noble metal decoration | |
| CN112089103A (en) | Atomizer heating body and manufacturing method thereof | |
| CN110330356A (en) | A kind of silicon carbide ceramics soldering connecting method | |
| CN112430072A (en) | Co-fired laminated porous ceramic heating body and preparation method thereof | |
| US20040197738A1 (en) | Dental ceramic frame, preparation of the same and dental prosthesis comprising the frame | |
| CN106535520B (en) | Preparation method of functional ceramic back plate | |
| CN115159991A (en) | Porous ceramic heating structure and preparation method thereof | |
| CN110248432A (en) | A kind of new type low temperature ceramic heating element and its manufacturing method | |
| CN111732454A (en) | Method for manufacturing cloisonne enamel on ceramic body and purple sand body | |
| KR20200125973A (en) | 3D ceramic structure | |
| CN115626819A (en) | Porous ceramic atomizing core and preparation method thereof | |
| CN114573323A (en) | 3DP (three-dimensional DP) formed high-density sanitary ceramic and preparation method thereof | |
| CN105428035B (en) | A kind of electronic component and its manufacture method | |
| CN106007773A (en) | Vacuum brazing method for porous silicon nitride ceramic and TiAl based alloy | |
| CN112209730B (en) | Porous ceramic atomization structure and preparation method thereof | |
| CN107117987A (en) | A kind of glass-ceramic group and preparation method thereof | |
| JP2002029857A (en) | Tray for firing small-sized ceramic electronic parts | |
| JP4443783B2 (en) | Electronic component firing setter | |
| KR101993181B1 (en) | Metal-ceramic dental prosthesis with enhanced bonding strength based on porous structure and method of manufacturing the same | |
| JPH1082164A (en) | Building material and manufacture thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20230120 |