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Preparation method of ceramic atomizing core

A technology of atomizing core and ceramics, which is applied in the field of electronic cigarettes, can solve the problems of low strength of ceramics, achieve the effects of improving interface bonding strength, increasing oil absorption rate, and reducing sintering temperature

Active Publication Date: 2021-06-01
SHENZHEN TAOTAO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method requires high temperature heating during sintering, and high temperature sintering may lead to low strength of ceramics

Method used

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  • Preparation method of ceramic atomizing core

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Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1: The preparation method of the ceramic atomizing core of this embodiment includes the following steps:

[0029] S1. Surface modification of ceramic powder: natural microporous diatomite or synthetic silica is used as ceramic powder, and the particle size of the ceramic powder is 15 μm. After the ceramic powder is mixed with the surface modifier, ball milling pretreatment is carried out together to form a coating layer on the surface of the ceramic powder, and the surface modified ceramic powder is obtained after drying. The mass ratio of the ceramic powder to the surface modifier is 100:1, and the thickness of the coating layer is 10 nm.

[0030] The surface modifier is composed of at least one of stearic acid, oleic acid, lauryl hydroxystearic acid and citric acid, and in every 100 parts by mass of the ceramic powder, the added surface modifier The number of parts by mass is 1 to 5 parts.

[0031] In this step, the particle size of the ceramic powder is ...

Embodiment 2

[0041] Embodiment 2, the preparation method of the ceramic atomizing core of this embodiment is basically the same as that of Embodiment 1, the difference is:

[0042] S1. Surface modification of ceramic powder: the particle size of the ceramic powder is 30 μm, the mass ratio of the ceramic powder to the surface modifier is 100:5, and the thickness of the coating layer is 20 nm.

[0043] S2. Preparation of mixed feed: the mass ratio of mixed feed to organic glue system is 100:20. The mass ratio of the organic glue system is PW:SA:PE:PP:resin=43:1:32:15:9.

[0044] Mixing steps of the organic rubber system: put PW into a W-type double-roll internal mixer and heat it. After the PW is in a molten state and the temperature of the liquid PW reaches 180°C, add resin, PE and PP respectively, and start the internal mixer. , add SA after banburying for 40min, continue banburying for 3h and end banburying, add slightly positive pressure 250Pa during banburying.

[0045]S3. Injection m...

Embodiment 3

[0049] Embodiment 3, the preparation method of the ceramic atomizing core of this embodiment is basically the same as that of Embodiment 1, the difference is:

[0050] S1. Surface modification of ceramic powder: the particle size of the ceramic powder is 20 μm, the mass ratio of the ceramic powder to the surface modifier is 100:2.5, and the thickness of the coating layer is 15 nm.

[0051] S2. Preparation of mixed feed: the mass ratio of mixed feed to organic glue system is 100:30. The mass ratio of the organic glue system is PW:SA:PE:PP:resin=50:1:25:15:9.

[0052] Mixing steps of the organic rubber system: first put PW into a W-type double-roll mixer and heat it. After the PW is in a molten state and the temperature of the liquid PW reaches 190°C, add resin, PE and PP respectively, and start the mixer. , add SA after banburying for 20min, continue banburying for 3.5h and end banburying, add slightly positive pressure 150Pa during banburying.

[0053] S3. Injection molding:...

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Abstract

The invention provides a preparation method of a ceramic atomizing core, which comprises the following steps: S1, surface modification of ceramic powder: mixing the ceramic powder and a surface modifier, performing ball milling pretreatment, and drying to obtain surface modified ceramic powder; S2, mixed feed preparation: mixing an organic adhesive system with the surface modified ceramic powder to obtain the mixed feed; S3, injection molding: specifically, putting the mixed feed into a screw type injection machine, and after injection molding is conducted, obtaining a ceramic atomization core green body; S4, degreasing: performing degreasing treatment on the ceramic atomization core green body by using a solvent to obtain a solvent-degreased green body; and S5, sintering: sintering the solvent-degreased green body by adopting a hot-pressing method to obtain the ceramic atomizing core. According to the preparation method of the ceramic atomizing core, the strength of the ceramic atomizing core can be effectively improved, meanwhile, the ceramic atomizing core has the good oil absorption rate, and the preparation method is simple and efficient.

Description

technical field [0001] The invention belongs to the technical field of electronic cigarettes, and in particular relates to a preparation method of a ceramic atomizing core. Background technique [0002] In the current existing technology, ceramic porous atomizing cores are mostly formed by hot die casting, and then the green body is embedded in the adsorbent, and the temperature is raised to 900°C-1100°C at an appropriate speed to remove the green body forming binder, so that the green body The body has a certain strength, and finally the green body with a certain strength must be put into a sintering furnace for firing to obtain the final product. This method requires high-temperature heating during sintering, and high-temperature sintering may lead to low strength of ceramics. [0003] With the rapid development of modern information technology, higher and higher requirements are put forward for the miniaturization, portability, multi-function, high reliability and low co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24F40/70A24F40/46
CPCA24F40/70A24F40/46
Inventor 余明先张霖王伟江刘友昌戴高环王超何培与何晓刚姚伟昌李毅
Owner SHENZHEN TAOTAO TECH CO LTD
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