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Ceramic atomizing core and preparation method thereof

A technology of atomizing core and ceramics, which is applied in the field of functional ceramics, can solve problems such as difficulty in controlling the atomization effect and affecting resistance stability, and achieve the effects of improving the taste and amount of smoke, increasing the use efficiency, and ensuring the resistance value

Active Publication Date: 2021-10-19
阿特麦哲(东莞)新材料科技有限公司
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Problems solved by technology

[0003]In addition, ceramic atomizing cores are usually composed of ceramics and surface printed resistors or inlaid resistors. The high sintering temperature of ceramics will directly affect the stability of resistors, and thus It is difficult to control the atomization effect, so reducing the sintering temperature of the ceramic atomization core is an important aspect to improve the atomization performance of the ceramic atomization core

Method used

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  • Ceramic atomizing core and preparation method thereof
  • Ceramic atomizing core and preparation method thereof
  • Ceramic atomizing core and preparation method thereof

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preparation example Construction

[0043] The present invention also provides a preparation method of the ceramic atomizing core, such as Figure 4 or Figure 5 shown, including the following steps:

[0044] (1) Weigh the sintering agent raw material powder according to the weight percentage, use wet ball milling for 15 to 36 hours, use absolute ethanol as the solvent medium, and dry at 70°C to obtain a uniform mixed powder R powder with a particle size of less than 1 μm;

[0045] (2) Dry press the above mixed powder R powder under 200MPa pressure, and then calcinate at 800-1100°C for 2-3 hours;

[0046] (3) Crushing and grinding the block obtained by the above-mentioned calcination to make a powder smaller than 1 μm, which becomes a sintering agent S powder;

[0047] (4) Weigh the skeleton raw material SiO according to the weight percentage 2 Granules, sintering agent S powder, and pore-forming agent are fully mixed with a V-type or other powder mixer to obtain a uniform ceramic mixed powder;

[0048] (5) ...

Embodiment 1

[0052] (1) Sodium phosphate Na 3 PO 3 , Active Al 2 o 3 , Micropowder SiO 2 , potassium borate K 3 BO 3 and calcium fluoride CaF 2 Weighing according to the weight percentage 25:50:15:7:3, using wet ball milling for 30h, the solvent medium is absolute ethanol, and drying at 70°C to obtain a uniform mixed powder R powder with a particle size of less than 1 μm;

[0053] (2) The above-mentioned mixed powder R powder was dry-pressed under a pressure of 200MPa, and then calcined at 1000°C for 2 hours;

[0054] (3) Crushing and grinding the block obtained by the above-mentioned calcination to make a powder smaller than 1 μm, which becomes a sintering agent S powder;

[0055] (4) Weigh the skeleton raw material SiO according to the weight percentage of 72:18:10 2 Granules, sintering agent S powder, and organic pore-forming agent PVB are fully mixed with a v-shaped powder mixer to obtain a uniform ceramic mixed powder;

[0056] (5) Using the method of hot die casting, use the...

Embodiment 2

[0059] (1) Sodium phosphate Na 3 PO 3 , Active Al 2 o 3 , Micropowder SiO 2 , potassium borate K 3 BO 3 and calcium fluoride CaF 2 Weighing according to the weight percentage 30:45:13:9:3, using wet ball milling for 30h, the solvent medium is absolute ethanol, and drying at 70°C to obtain a uniform mixed powder R powder with a particle size of less than 1 μm;

[0060] (2) The above-mentioned mixed powder R powder was dry-pressed under a pressure of 200MPa, and then calcined at 1000°C for 2h;

[0061] (3) Crushing and grinding the block obtained by the above-mentioned calcination to make a powder smaller than 1 μm, which becomes a sintering agent S powder;

[0062] (4) Weigh the skeleton raw material SiO according to the weight percentage 73:17:10 2 Granules, sintering agent S powder, and organic pore-forming agent PVC are fully mixed with a v-shaped powder mixer to obtain a uniform ceramic mixed powder;

[0063] (5) Adopt the method of hot die casting, use the above c...

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Abstract

The invention belongs to the field of functional ceramics, and particularly relates to a porous ceramic atomization core for an electronic cigarette atomization device and a preparation method thereof. The ceramic atomizing core is prepared from the following raw materials in percentage by weight: 60-90% of a framework raw material, 10-30% of a sintering agent and 0-30% of a pore forming agent, wherein the framework raw material is SiO2 particles, the sintering agent is mixed powder composed of sodium phosphate, active Al2O3, micro-powder SiO2, potassium borate and calcium fluoride, and the pore-forming agent is at least one of an organic pore-forming agent, graphite, sawdust and rice hull. According to the invention, the atomization core ceramic can be sintered at a lower temperature by utilizing the formation of the in-situ sintering aid (glass phase), and higher strength can be formed only by sintering in an air environment, so that the oxidation of the atomization core metal resistor disc caused in the high-temperature sintering of the traditional ceramic and the corrosion reaction with the ceramic can be effectively avoided; and therefore, the stability of the resistance of the resistor disc is ensured, and the yield of the ceramic atomizing core in the production process is further improved.

Description

technical field [0001] The invention belongs to the field of functional ceramics, in particular to a porous ceramic atomizing core for an electronic atomization device and a preparation method thereof. Background technique [0002] Electronics cigarettes are mainly composed of batteries, control components and smoke oil atomization system. As the core component of the electronic cigarette system, the atomizing core directly determines the experience of electronic cigarettes. Based on the good oil absorption and oil locking ability of porous ceramics, high temperature resistance and corrosion resistance properties, currently the electronic smoke core is mainly made of porous ceramics. Limited to the single pore-forming mechanism and preparation process of ceramic atomizing cores at present, common porous ceramic atomizing cores have the problem that it is difficult to balance porosity, pore size and structural strength. If the porosity is high, the structural strength is low...

Claims

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Application Information

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IPC IPC(8): C04B35/14C04B38/06C04B35/64A24F40/10A24F40/46A24F40/70
CPCC04B35/14C04B35/64C04B38/067C04B38/068C04B38/0675A24F40/46A24F40/10A24F40/70C04B2235/447C04B2235/3217C04B2235/445C04B2235/3409C04B2235/96C04B38/0074
Inventor 丁达飞宿金栋范爽闫明伟
Owner 阿特麦哲(东莞)新材料科技有限公司
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