High-pressure-resistant high-strength all-ceramic heat-resistant vessel and preparation method thereof

Abstract

The invention discloses a high-pressure-resistant high-strength all-ceramic heat-resistant vessel and a preparation method thereof. Blanks of the high-pressure-resistant high-strength all-ceramic heat-resistant vessel comprise lithium china clay, cooked quartz, kaolin, ball clay, talc washed mud, cooked alumina, zinc oxide and zirconium oxide. Glazes comprise quartz, cooked clay, thin aluminium powder, talc, calcite, kaolin and boric acid. The preparation method comprises the following steps: preparing the blanks, preparing the glazes, carrying out blank forming, stoving, fettling, biscuiting, glazing and sintering. The product has high heat-resistance and mechanical strength, can reach 800 DEG C, is not burst when poured into water of 20 DEG C, and is high-pressure-resistant, high-temperature-resistant and high in strength. The product is completely vitrified and achieves all-ceramic standard, and the water absorption achieves less than 0.01%. The product is wide in application scope, can be made into various pots and pans, is suitable for frying, stir-frying, stewing and boiling food with various heat sources and can be used as a liner of an electric pressure cooker. In addition, the product can achieve the non-stick effect naturally by the light glaze, and a non-stick coating is no longer used so that the product is safe and healthful.

Description

technical field [0001] The invention relates to a ceramic product and a preparation method thereof, in particular to a high-pressure-resistant high-strength all-ceramic heat-resistant vessel and a preparation method thereof. Background technique [0002] Due to the characteristics of non-corrosion, non-deformation, easy cleaning and safety and sanitation, ceramic utensils are widely used in people's daily life as eating utensils; at the same time, there are also a wide variety of daily-use heat-resistant porcelain products on the market, but most of them are ceramic The low-temperature firing series of matte glaze has low strength and high water absorption, and the color of ordinary heat-resistant clay is gray and dark. To cover the color of clay, manufacturers mostly spray black glaze or brightly colored glaze, resulting in ceramic casserole products There are also hidden dangers in terms of health and safety. Although there are also ceramic pots and pans on the market, th...

AI Technical Summary

Problems solved by technology

[0002] Due to the characteristics of non-corrosion, non-deformation, easy cleaning and safety and sanitation, ceramic utensils are widely used in people's daily life as eating utensils; at the same time, there are also a wide variety of daily-use heat-resistant porcelain products on the market, but most of them are ceramic The low-temperature firing series of matte glaze has low strength and high water absorption, and the color of ordinary heat-resistant clay is gray and dark. To cover the color of clay, manufacturers mostly spray black glaze or brightly colored glaze, resulting in ceramic casserole products There are also hazards in health and safety

Although there are also ceramic pots and pans on the market, they are not resistant to rapid cooling and rapid heating, and are prone to cracking when they are dry-fired; these problems have seriously restricted the share of my country's heat-resistant ceramic products in the international market, and it is also difficult to meet the needs of the domestic market. Demand for high-end products

China Patent Authorization Announcement No. CN102320813 B, the announcement date is April 2, 2014. This invention patent discloses "a heat-resistant ceramic edible vessel that can be burned on an open flame and its production method". Although the ceramic vessel produced by this scheme It can be burned on an open flame, and can be used as a pot to cook food. It has made great progress compared with the heat-resistant ceramics on the market. Its scope of application is limited

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