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Integrally conductive aerosol-generating substrate heating element and preparation process and application thereof

A preparation process and a heating element technology, applied in the field of materials, can solve the problems of large heat transfer process loss, high cost, low yield, etc., and achieve the effects of uniform temperature distribution, high fracture toughness, and long service life.

Pending Publication Date: 2021-07-27
ALD GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the common defects of these types of substrate heating elements are: the chip type and pin type used are thin-walled, have low strength, and are easy to break during use, resulting in product failure; the peripheral heating method is printed on the outer surface of the substrate. Conductive paste, resulting in large losses in the heat transfer process and low thermal efficiency; printed metal thick film circuits on the substrate surface, strict production process, high cost, low yield, easy to burn out and fail at circuit defects during dry burning; with the use of time The extended metal heating line is easy to oxidize, resulting in an increase in the resistance of the heating line and a decrease in the heating effect

Method used

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  • Integrally conductive aerosol-generating substrate heating element and preparation process and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0032] The concrete steps of this preparation example are as follows:

[0033] (1) Ingredients

[0034] Take 90 grams of SiC powder (purity ≥ 95%, preferably 99%) and 10 grams of TiC powder (purity ≥ 95%, preferably 99%), add 15 grams of metal elemental Ni powder, and add 5 grams of Ni powder at the same time Glass phase material powder (the main component of glass phase material is SiO 2 、Al 2 o 3 , B 2 o 3 , where the weight ratio of SiO 2 :Al 2 o 3 :B 2 o 3 =9:4:3); the particle size D50 of the above raw material powder is 5 μm;

[0035] (2) Abrasives

[0036] Put the above-mentioned raw materials weighed into the ball mill, and add deionized water as the dispersion medium at the same time, and the zirconium balls are the abrasives. The weight ratio of raw materials: zirconium balls: water is 1:2:0.6, and the ball milling time is 22 hours;

[0037] (3) spray drying

[0038] The ball-milled slurry is directly pressed into the centrifugal dryer through a peristal...

preparation example 2

[0050] The concrete steps of this preparation example are as follows:

[0051] (1) Ingredients

[0052] Take SiC powder (purity ≥ 95%, preferred purity is 99%) and TiN powder (purity ≥ 95%, preferred purity is 99%) 95 grams, 5 grams respectively, add 12 grams of metal powder mixture (metal powder is Ni, Cr, Mo alloy powder, wherein the weight ratio of Ni:Cr:Mo is 75:23:2), and at the same time add 3 grams of glass phase material powder (the main component of glass phase material is SiO 2 、Al 2 o 3 , CaO, where the weight ratio of SiO 2 :Al 2 o 3 : CaO=4:2:0.5), the particle size D50 of the above raw material powder is 20 μm;

[0053] (2) Abrasives

[0054]The raw materials weighed according to step (1) are put into the ball mill, and deionized water is added as the dispersion medium at the same time. The zirconium ball is the abrasive, and the ball milling time is 24 hours. The raw material: zirconium ball: water = 1:2:0.6;

[0055] (3) spray granulation

[0056] For ...

preparation example 3

[0067] The concrete steps of this preparation example are as follows:

[0068] (1) Ingredients

[0069] Take 85 grams and 15 grams of SiC powder (purity ≥ 95%, preferably 99%) and AlN powder (purity ≥ 95%, preferably 99%) respectively, add 8 grams of tungsten (W) metal powder, Add 3 grams of glassy phase material simultaneously (the main component of glassy phase material is SiO 2 、Al 2 o 3 , where the weight ratio of SiO 2 :Al 2 o 3 =4:2), the particle size D50 of the above raw material powder is 5 μm;

[0070] (2) Abrasives

[0071] Put the above-mentioned weighed raw materials into the ball mill, and add deionized water as the dispersion medium at the same time, zirconium balls are abrasive materials, wherein raw materials: zirconium balls: water = 1:2:0.6, ball milling time 22h;

[0072] (3) spray drying

[0073] The ball-milled slurry is directly pressed into the centrifugal dryer through a peristaltic pump, and the water contained in it is evaporated after high-...

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Abstract

The invention provides an integrally conductive aerosol generating substrate heating body which is prepared by adding metal powder and glass phase substance powder into substrate powder. The heating body provided by the invention is more uniform in temperature distribution, and the situation that the local temperature is too high or too low cannot occur in the heating process. And meanwhile, the heating body is higher in fracture toughness and not easy to break, so that the product is better in reliability and longer in service life. The invention also provides a preparation process of the heating body and application of the heating body in a heating element.

Description

【Technical field】 [0001] The invention relates to the field of materials, in particular to an integrally conductive aerosol-generating substrate heating element and its preparation process and application. 【Background technique】 [0002] Known aerosol-generating devices include batteries, control electronics, and electric heating equipment, which are used to heat aerosol-generating articles specially designed to be used with aerosol-generating devices, and current mainstream electric heating devices are designed to Heat-not-burn appliances. The heat-not-burn appliance is applied to new releasable aerosol products. The temperature of the aerosol produced by it is reduced from 800°C to 400°C. At the same time, the harmful substances such as tar and carbon monoxide in the aerosol are significantly reduced, which complies with the user's pursuit of a healthy life concept. [0003] At present, the heat source of mainstream heat-not-burn appliances in the market is to print gold...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24F40/46A24F40/70C22C29/02C22C29/16C22C29/12C22C1/05C22C1/10
CPCA24F40/46A24F40/70C22C29/02C22C29/005C22C29/16C22C29/12C22C1/051
Inventor 张宁龙太君丁毅杜昊陈斌
Owner ALD GRP