Enamel material and preparation method and application thereof

Abstract

The invention discloses an enamel material, and a preparation method and application thereof. The enamel material contains oxides of first main group metal elements, oxides of third main group elements, oxides of fourth subgroup elements, oxides of fourth main group elements, oxides of lanthanide elements and a wave-transparent resin. The preparation method comprises the following steps: (1) mixing glaze materials to obtain a mixture; (2) melting the mixture to obtain a molten material; (3) carrying out water quenching treatment on the molten material to obtain a fusion cake; (4) carrying out first ball milling treatment on the fusion cake to obtain glaze powder; (5) mixing the glaze powder with the wave-transparent resin to obtain mixed powder; and (6) carrying out second ball milling treatment on the mixed powder to obtain the enamel material. The enameled coating formed by the enamel material has the advantages of low surface pinhole rate and low microwave absorptivity, thereby obviously enhancing the microwave output efficiency of the obtained product, such as microwave oven or baking oven.

Description

technical field [0001] The invention belongs to the field of coatings, in particular, the invention relates to an enamel material and its preparation method and application. Background technique [0002] Microwave ovens and ovens and other kitchen appliances have a high internal working environment temperature, long-term contact with oil, acidic and alkaline seasonings and detergents, and are very easy to come into contact with sharp and sharp objects, and microwave ovens and microwave accessories are exposed to microwave environments for a long time. It is required that the outer surfaces of microwave ovens, oven liners, and microwave oven and oven accessories should have properties such as high temperature resistance, acid and alkali resistance, scratch resistance, and corrosion resistance. In addition to meeting the above properties, the outer surface of microwave oven liners must also have The performance of low microwave loss, and the above-mentioned performance cannot ...

AI Technical Summary

Problems solved by technology

However, since the current enamel technology requires a high temperature of more than 800 °C to sinter the enamel glaze on the surface of the metal substrate, a small amount of elemental carbon in the metal material undergoes a redox reaction with the glaze components to generate hydrogen, and the produced H 2 At higher temperatures, the diffusion speed is greatly accelerated, and it quickly diffuses from the inside of the glaze to the air layer, resulting in a pinhole appearance on the surface of the enamel layer, which affects the appearance and performance of the materials and products treated on the surface of the enamel layer; and because the enamel Part of the composition in the glaze has microwave-absorbing properties, resulting in microwave energy loss, which reduces the microwave output efficiency and affects the actual microwave energy utilization rate of the microwave oven.

The above two main problems of the prior art have seriously restricted the application of enamel materials in microwave ovens and microwave accessories, ovens and oven accessories, making the enamel materials' high temperature resistance, acid and alkali resistance, scratch resistance, corrosion resistance and other advantages unable to be used in Displayed in kitchen appliances such as microwave ovens and ovens

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