Combined type high temperature micropore high-power ceramic atomizing core and preparation method thereof

Abstract

The invention discloses a combined type high temperature micropore high-power ceramic atomizing core and a preparation method thereof. The ceramic atomizing core comprises a micropore ceramic body anda heating element, wherein the micropore ceramic body comprises a micropore ceramic body I and a micropore ceramic body II, the micropore ceramic body I sleeves in the micropore ceramic body II, andthe heating element is inserted between the micropore ceramic body I and the micropore ceramic body II; and the preparation method of the ceramic atomizing core comprises the following steps: S1: preparing a ceramic body; S2: sintering at 1430-1630 DEG C to prepare a micropore ceramic body; S3: making the heating element according to power requirement; and S4: assembling the micropore ceramic bodyand the heating element to form the ceramic atomizing core. According to the invention, by performing high-temperature sintering on the micropore ceramic body, pore forming agent and organic bindingagent in the ceramic body are burned up completely, so as to obtain the high-strength micropore ceramic atomizing core without production of powder and without peculiar smell in use; the heating element and the micropore ceramic body are not sintered together, so as to avoid oxidation of the heating element and keep the resistance value of the heating element unchanged.

Description

technical field [0001] The invention relates to the technical field of microporous ceramic atomizing cores for electronic cigarettes, in particular to a combined high-temperature microporous high-power ceramic atomizing core and a preparation method thereof. Background technique [0002] At present, there are many kinds of atomizing cores, and atomizing cores are the most widely used in the electronic cigarette industry. The main structure of the atomizing core in the electronic cigarette industry is composed of: an oil-conducting carrier, a heating element, and a metal shell; the oil-conducting carrier is mainly a porous object with a capillary structure and an oil-conducting channel, and the e-liquid passes through the microporous channel of the capillary structure. Then it is heated by a heating element to generate aerosol; the heating element is a metal alloy resistance wire or mesh. The current atomizing cores are made of ceramics and fiber cotton as oil guide carriers...

AI Technical Summary

Problems solved by technology

The current atomizing cores are made of ceramics and fiber cotton as oil guide carriers. Fiber cotton is the most used oil guide carrier. Fiber cotton is suitable for use below 180°C, and the smoke oil mist in the electronic cigarette industry The atomization temperature is 170-250°C, and the best atomization temperature is 190°C; especially for electronic cigarettes with heavy smoke, its normal atomization temperature needs to be above 190°C; limited by the use temperature, fiber cotton is used as the oil-conducting carrier In addition to being limited by the use temperature, the atomizing core of the new one cannot be dry-burned. If the temperature is higher than 180°C or dry-burned, the fiber cotton will have an odor or burn out the atomizing core. If the temperature is higher than 190°C or dry-burned, it will The fiber cotton is decomposed, and the decomposed products contain many substances that are harmful to the human body, endangering the health of users, and are not environmentally friendly.

[0003] At present, ceramics are used as the atomizing core of the oil-conducting carrier, and the silicate raw material is mixed with a pore-forming agent and an organic binder to form a mixture body, and then the heating element is put into a molding mold and molded together with the mixture body It is a blank, and then the blank containing the heating element is sintered at a temperature below 700°C to form a ceramic atomizing core; normally ceramics made of silicate raw materials need to be fired at a temperature above 1100°C, but currently The production of ceramic atomizing cores is fired at a low temperature below 700°C. The reason is that the heating element is embedded in the ceramic billet and co-fired together; because the heating elements used in various atomizing cores are above 700°C Oxidation will occur, and the resistance value of the heating element will also change greatly, so it can only be fired at a low temperature below 700°C, while the pore-forming agent and organic binder in the ceramic body cannot be fired at a low temperature below 700°C. Completely burnt, and the strength of ceramic parts fired below 700°C is not very good, which causes the existing ceramic atomizing core to have an odor due to unburned pore-forming agents and organic binders during use. , also because 700°C has not yet reached the optimum firing temperature of ceramics, so that the ceramics are not completely porcelained, resulting in insufficient strength and ceramic powder falling off; and such low-temperature firing is even more unsuitable for high-smoke and high-power electronic cigarettes. Ceramic atomizing core

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