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Title:
METAL HEATING FILM, CERAMIC HEATING ELEMENT, PREPARATION METHOD, AND ELECTRONIC ATOMIZATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/161074
Kind Code:
A1
Abstract:
A metal heating film, a ceramic heating element, a preparation method, and an electronic atomization device. The metal heating film comprises: 74-95% of stainless steel, 2-16% of a glass powder, and 2-10% of a regulatory component, wherein the regulatory component is at least one of aluminum oxide, zirconium oxide, and silicon dioxide. The selection of the raw materials of the metal heating film and the adjustment of the amounts of the raw materials can ensure that, on the premise of increasing the temperature coefficient of resistance of the heating film, the thermal expansion coefficient of the heating film can be adjusted within a certain range, such that the thermal expansion coefficient can be matched with a ceramic substrate, avoiding breaking off by dry burning and affecting the use thereof. The regulatory component is used to adjust the thermal expansion coefficient of a heating layer. By means of the adjustment of the thermal expansion coefficient of the heating layer using the regulatory component, the heating film can be better combined with the ceramic substrate, the harmful stress is relatively small during use, the matching of the heating film with the ceramic substrate is achieved, and the service life of the ceramic heating element is improved.

Inventors:
JIANG JINFENG (CN)
CHEN ZHICHAO (CN)
JIANG YUE (CN)
XIE JIANSHENG (CN)
XIANG SHAOBIN (CN)
LI HAIHUA (CN)
Application Number:
PCT/CN2021/142009
Publication Date:
August 04, 2022
Filing Date:
December 28, 2021
Export Citation:
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Assignee:
SHENZHEN SMOORE TECHNOLOGY LTD (CN)
International Classes:
A24F40/46; H05B3/12
Foreign References:
CN110037349A2019-07-23
CN110731551A2020-01-31
CN110074463A2019-08-02
CN107173849A2017-09-19
CN109527660A2019-03-29
CN109875123A2019-06-14
US20050277550A12005-12-15
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD (CN)
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