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Preparation method of medium-temperature co-fired atomizing core and prepared medium-temperature co-fired atomizing core

An atomizing core and co-firing technology, used in ceramic products, pharmaceutical equipment, tobacco, etc., can solve the problems of poor adhesion between thick-film electrodes and ceramic surfaces, poor printability of paste, and low yield rate, etc. Sintering shrinkage, not easy to fall off, strong electronic conductivity effect

Active Publication Date: 2021-08-24
深圳市丁鼎陶瓷科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Compared with other types of atomizing cores, this atomizing core has the best reduction degree of e-liquid, and the taste is quite good. However, due to the rough surface of porous ceramics and full of holes, when printing heating electrode paste on the surface of porous ceramics, the paste The printability of the material is poor, the yield rate is low, and the adhesion between the thick film electrode and the ceramic surface is poor, and it is easy to fall off in the process of high and low temperature impact

Method used

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  • Preparation method of medium-temperature co-fired atomizing core and prepared medium-temperature co-fired atomizing core
  • Preparation method of medium-temperature co-fired atomizing core and prepared medium-temperature co-fired atomizing core
  • Preparation method of medium-temperature co-fired atomizing core and prepared medium-temperature co-fired atomizing core

Examples

Experimental program
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preparation example Construction

[0125] Examples of Preparation of Raw Materials and / or Intermediates

[0126] In the following preparations:

preparation example 1

[0130] A kind of oxide printing paste, the oxide electrode powder used in the oxide printing paste of this preparation example, its chemical formula is: La 1-x Sr x MnO 3-δ . Wherein, x=0.4; δ=0.2.

[0131] The preparation process is:

[0132] According to the stoichiometric ratio, 0.6 mol of La(NO 3 ) 3 , 0.4mol of Sr(NO 3 ) 3 , 1mol of Mn(NO 3 ) 3 Dissolve in 20mol (260ml) water, add 0.5mol of citric acid, add 0.1mol of polyacrylic acid surfactant, place the above solution in a constant temperature water bath at 80°C, and adjust the pH value by dropping a 25% ammonia solution , keep the pH value at 6, continue to heat and stir in the water bath, the stirring speed is 120rpm, until the solution is evaporated to dryness, and the oxide electrode precursor is obtained, and the precursor is placed in a muffle furnace for calcination. The holding time is 2 hours; after being out of the furnace, it is ground through a 200-mesh sieve to obtain La 0.6 Sr 0.4 MnO 2.8 Powd...

preparation example 4

[0138] An oxide printing paste, the difference from Preparation Example 3 is that the oxide electrode powder used in the oxide printing paste in this preparation example has a chemical formula of: La 1-x Sr x MnO 3-δ . Wherein, x=0.6; δ=0.3.

[0139] The preparation process is:

[0140] According to the stoichiometric ratio, 0.4 mol of La(NO 3 ) 3 , 0.6mol of Sr(NO 3 ) 2 , 1mol of Mn(NO 3 ) 3 Dissolve in 20mol (260ml) water, add 0.5mol of citric acid, add 0.1mol of polyacrylic acid surfactant, place the above solution in a constant temperature water bath at 80°C, and adjust the pH value by dropping a 25% ammonia solution , keep the pH value at 6, continue to heat and stir in the water bath, the stirring speed is 120rpm, until the solution is evaporated to dryness, and the oxide electrode precursor is obtained, and the precursor is placed in a muffle furnace for calcination. The holding time is 3h; after being out of the furnace, it is ground through a 200-mesh sieve ...

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Abstract

The invention relates to the field of atomizing core ceramics, and particularly discloses a preparation method of a medium-temperature co-fired atomizing core, wherein the preparation method comprises the following steps: step 1, preparing a green body: carrying out injection molding on a porous ceramic injection material to prepare a ceramic green body; step 2, printing oxide printing slurry: printing the oxide printing slurry on the ceramic green body to prepare a green body printed with an electrode, wherein the sintering shrinkage difference range of the oxide printing slurry and the porous ceramic injection material is 0-0.5%; and step 3, co-firing: sintering the green body printed with the electrode prepared in the step 2 at the sintering temperature of 950-1250 DEG C to obtain the atomizing core. The atomizing core can be used in the field of electronic cigarettes or beauty instruments, and since the ceramic green body and the oxide printing slurry form a solid solution layer in the co-firing process, the bonding force between the electrode of the product and the surface of the porous ceramic is good, and the electrode is not prone to falling off.

Description

technical field [0001] The present application relates to the field of atomizing core ceramics, more specifically, it relates to a method for preparing a medium-temperature co-fired atomizing core and the prepared medium-temperature co-fired atomizing core. Background technique [0002] At present, in electronic cigarettes or cosmetic atomization devices, an atomizing core is usually used to atomize e-liquid or cosmetic liquid. Commonly, the atomizing core is mainly made of porous ceramics, and a heating electrode is arranged on its surface. When in use, the e-liquid or beauty liquid penetrates into the porous ceramic surface through capillary micropores, and the heating electrode generates heat under the action of electric current, and the heat atomizes the e-liquid or beauty liquid attached to the porous ceramic surface. [0003] The existing atomization types of ceramic atomizing cores are as follows: [0004] 1. Wire-through ceramic atomizing core. The wire-through cer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/06
CPCC04B38/067C04B38/0675C04B38/068C04B35/14C04B35/10C04B35/565C04B35/50C04B35/64C04B35/2641C04B35/62605C04B41/5045C04B41/5027C04B41/5036C04B41/5029C04B41/87A61M35/00A24F40/46A24F40/70A24F40/48C04B2235/3206C04B2235/3215C04B2235/36C04B2235/3213C04B2235/3227C04B2235/3268C04B2235/3229C04B2235/327C04B2235/3275
Inventor 丁涛
Owner 深圳市丁鼎陶瓷科技有限公司
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