A composite ceramic panel for an induction cooker and its preparation

A technology of composite ceramics and induction cooker, which is applied in the field of induction cooker, can solve problems such as the influence of the service life of electrical components inside the induction cooker, the limitation of pot material, and the easy wear and tear of magnetic heating materials, etc., and achieves superior thermal conductivity, which is conducive to mass production and prolongs life. Effect

Active Publication Date: 2019-05-24
SHANTOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a composite ceramic panel for an induction cooker and its preparation, which solves the limitations of the existing induction cooker on the material of the pot, the outer coating of the ceramic pot with magnetic heating materials is easy to wear and crack, and the downward transfer of heat will affect the service life of the electrical components inside the induction cooker. issues such as impact

Method used

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  • A composite ceramic panel for an induction cooker and its preparation
  • A composite ceramic panel for an induction cooker and its preparation
  • A composite ceramic panel for an induction cooker and its preparation

Examples

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Embodiment 1

[0026] like figure 1 and figure 2 As shown, a composite ceramic panel for an induction cooker includes a high thermal conductivity ceramic panel 1 , a magnetic heating material 2 and a ceramic bottom plate 3 . According to 10% ferric oxide, 35% carbon fiber, 30% silver powder, 6% ZnO-B 2 o 3 -P 2 o 5 The mass ratio of low-temperature glass powder, 15% terpineol solvent, and 4% ethyl cellulose plasticizer is used to uniformly mix the above materials into a slurry with a certain fluidity; prefabricate a middle one according to the size of the high thermal conductivity ceramic panel 1 A printing plate with a solid circle and a ring outside; the paste is printed on the lower surface of the high thermal conductivity ceramic panel 1 . After drying, it is laminated with a ceramic bottom plate 3 made of glass-ceramics with a thickness of 5mm, and kept in a reducing atmosphere furnace at 620°C for 3 minutes to obtain a central magnetic material film 4 and a magnetic material ring...

Embodiment 2

[0028] like image 3 and Figure 4 As shown, a composite ceramic panel for an induction cooker includes a high thermal conductivity ceramic panel 1 , a magnetic heating material 2 and a ceramic bottom plate 3 . According to 20% ferric oxide, 15% carbon fiber, 45% silver powder, 8% ZnO-B 2 o 3 -P 2 o 5 The mass ratio of low-temperature glass powder, 9% terpineol solvent, and 3% ethyl cellulose plasticizer is used to uniformly mix the above materials into a slurry with a certain fluidity; prefabricate a middle one according to the size of the high thermal conductivity ceramic panel 1. Rectangular printing plate with 2 rectangular rings outside; paste printed to 60% Al2O3 + 10% SiC whisker + 30% ZnO-B 2 o 3 -P 2 o 5 On the 1.5mm thick ceramic raw tape of low temperature glass powder, after drying, it is combined with 3 layers of 60% alumina + 40% ZnO-B 2 o 3 -P 2 o 5 Low-temperature glass and ceramic raw tapes with a total thickness of 4.5mm are stacked together, and ...

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Abstract

The invention relates to an induction cooker composite ceramic panel and a manufacturing method thereof. The induction cooker composite ceramic panel comprises a high-thermal-conductivity ceramic panel, magnetic heating materials and a ceramic bottom panel from top to bottom in sequence, wherein the lower surface of the high-thermal-conductivity ceramic panel is coated with the magnetic heating materials. The induction cooker composite ceramic panel can be applicable to an induction cooker for heating various pots. The high-thermal-conductivity ceramic panel at the upmost layer is excellent inthermal conductivity and can efficiently transmit heat to pots. The ceramic bottom panel at the lowest layer is low in thermal conductivity and effectively prevents heat generated by the magnetic heating materials from being transmitted to a coil and other electronic devices at the lower layer, and therefore the service life of the induction cooker is prolonged. Meanwhile, the problems that pot explosion is caused by low heat matching between the bottom of a common ceramic pot and the magnetic heating materials and a ceramic inner container with a magnetic heating material coating is prone toabrasion and cracking are avoided, and the pot material range of the induction cooker is widened. A magnetic heating sizing agent printing process facilitates batch production.

Description

technical field [0001] The invention relates to the technical field of induction cooker, in particular to a composite ceramic panel for an induction cooker and its preparation. Background technique [0002] Induction cooker is a kind of high-efficiency and energy-saving kitchen utensils. It uses the principle of electromagnetic induction heating to directly generate heat from the bottom of the pot without open flame or conductive heating. It has the advantages of fast heating speed, high energy efficiency, energy saving and environmental protection, high safety, and convenient use. . However, the pot itself or part of the pot used must be made of materials with good magnetic conductivity. Cookware made of other materials will cause abnormal loads on the induction cooker and start automatic protection due to the high or low resistivity of the material, and cannot work normally. Patent 200820047032.7 discloses a metal film ceramic liner electromagnetic rice cooker, by coating...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24C15/10B32B18/00B32B33/00B32B37/10B32B38/00B32B38/14
Inventor 王双喜蓝海凤黄永俊李少杰张伟
Owner SHANTOU UNIV
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