Exothermic enamel glaze, and exothermic container coated with same

A heating container and enamel glaze technology, which is applied in the field of heating enamel glaze and heating containers coated with it, can solve the problems of difficult processing of complex shapes, and achieve the effects of high heating characteristics, high heating temperature and excellent heat resistance characteristics.

Inactive Publication Date: 2012-07-04
YOU&I TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] As mentioned above, the realization methods of heating containers for microwave ovens used so far have disadvantages such as operating temperature, handling convenience, unit manufacturing components, etc., and in particular, there is a problem in processing that it is difficult to handle complex shapes.

Method used

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  • Exothermic enamel glaze, and exothermic container coated with same
  • Exothermic enamel glaze, and exothermic container coated with same
  • Exothermic enamel glaze, and exothermic container coated with same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Vitreous glaze [(Frit), SiO for enamel glaze commonly used 2 、Al 2 o 3 、Na 2 O, K 2 O, CaO, NiO, CoO, CuO, MnO, BaO, F, B 2 o 3etc.], add clay (clay) and sodium nitrite (NaNO 2 ) in the composition of commonly used glazes formed by changing the types and contents of soft magnetic materials, namely ferrite and soft magnetic metal alloy powders (FeSiAl, FeSi), to determine the composition ratio of 12 kinds of glazes. 40 wt % of water was added to the composition, and then pulverized to an average particle size of 100 μm by an alumina ball mill to manufacture a test piece of the glaze for heat-generating enamel.

[0069] A hot-rolled steel plate for common enamel is made into a quadrilateral test piece with a thickness of 0.8mm and 100*150mm. After the steel plate is degreased with sodium hydroxide (NaOH), the heating enamel glaze is coated with a thickness of more than 200 μm, and then After drying at 100°C for 2 hours, the dried test piece was vitrified and fired ...

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Abstract

The present invention relates to an exothermic container to be used in a microwave oven which cooks foods using a magnetron. The exothermic container absorbs a portion of the microwaves generated by the magnetron and generates heat to cook foods in the cooking chamber of the microwave oven. The exothermic container to be used in the microwave oven is produced by the steps of providing an exothermic enamel glaze, coating a metal container to be produced into an enameled container (low carbon steel plate, aluminum, and stainless steel to be produced into an enameled container) with the exothermic enamel glaze provided in the previous step, drying the resulting structure, firing the resulting structure to vitrify same, and cooling the resulting structure, to thereby achieve improved resistance against hot temperatures, improved exothermic performance,; and higher quality as compared to conventional exothermic container products (silicon rubber and ferrite). A method for producing the exothermic enamel glaze involves mixing or adding (MnZn-based, MgCuZn-based, NiZn-based) ferrite, having high magnetic permeability, and alloy powders of (Fe-Si-based, Fe-Si-Al-based, Fe-Si-B-based, Fe-Si-B-Co-based, Fe-Ni-based, etc.) soft magnetic metal materials to the glaze (glass frit) commonly used in enameling, to thereby provide the glaze with exothermic properties for absorbing microwaves (2.45GHz) and for converting the absorbed microwaves into thermal energy in a microwave oven.

Description

technical field [0001] The invention relates to a heating container used in a microwave oven for cooking food with high-frequency vibration emitted by a magnetron and a heating enamel glaze coated on the surface thereof, especially relates to absorbing The heat-generating substance that generates electromagnetic waves is mixed with enamel glaze, so it has heat resistance that can withstand higher temperatures and improved heat-generating characteristics than conventional products. This is a heat-generating container for microwave ovens. Background technique [0002] Normally, a microwave oven is an appliance that emits 2.45GHz high-frequency waves emitted by a magnetron into the cooking room, and cooks food by vibrating the molecular arrangement of food. [0003] Among the recent compound microwave ovens, there is an increasing trend of microwave ovens that are equipped with heating wires inside the microwave cooking chamber and function as conventional electric ovens. Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C8/02
CPCC03C8/02C03C8/16Y10T428/12181
Inventor 李英九尹锡宪朴元铉申铉圭孙荣珉
Owner YOU&I TECH
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