A kind of preparation method of glaze-free white porcelain

Abstract

The invention relates to a method for preparing ceramics, and provides a method for preparing glaze-free white porcelain. The method omits the step of glazing after firing, shortens the production cycle of the product, especially reduces the production cost, and simultaneously produces the product The smooth and bright surface of the ceramic product is retained, and the appearance of the product still has a transparent and clean feeling after glazing treatment. The raw materials include the following parts by weight: 50-55 parts by weight of kaolin, 38-42 parts by weight of albite feldspar, 3-5 parts by weight of quartz, and 1-2 parts by weight of talcum powder; the steps of the preparation method include: After the above-mentioned raw materials are processed into mud billets, when firing, the mud billets are gradually heated and fired from room temperature through a step-by-step linear temperature increase method. The temperature rise curve for each stage of temperature rise is y=k×P×t, y is the temperature in °C, and P is The kiln power, t is the time min, and the value of the coefficient k is 0≤k≤1.

Description

technical field [0001] The invention relates to a preparation method of ceramics, in particular to a preparation method of glaze-free white porcelain. Background technique [0002] The preparation method of ceramic products usually includes firing the mud body first and then glaze the surface of the fired mud body product to form a modern bright and clean ceramic vessel. Dehua white porcelain is characterized by its fine production, firm texture, crystal clear as Jade, the glaze is moist like fat, so it has good names such as "ivory white", "lard white" and "velvet white". It has a unique style in the white porcelain system in my country. The existing white porcelain preparation method is to achieve this effect. It is inseparable from the fine porcelain clay and special glaze. However, the special glaze not only makes the surface of the porcelain achieve the desired effect, but also increases the process, prolongs the production time, and increases the production cost. Ceramic...

AI Technical Summary

Problems solved by technology

[0002] The preparation method of ceramic products usually includes firing the mud body first and then glaze the surface of the fired mud body product to form a modern bright and clean ceramic vessel. Dehua white porcelain is characterized by its fine production, firm texture, crystal clear as Jade, the glaze is moist like fat, so it has good names such as "ivory white", "lard white" and "velvet white". It has a unique style in the white porcelain system in my country. The existing white porcelain preparation method is to achieve this effect. It is inseparable from the fine porcelain clay and special glaze. However, the special glaze not only makes the surface of the porcelain achieve the desired effect, but also increases the process, prolongs the production time, and increases the production cost. Ceramic ware is also more likely to cause modern people's worries

[0003] The invention patent of Chinese patent CN104058727B provides an antique natural color porcelain, and proposes a method for producing ceramic products without glaze, which solves the problem of heavy metals in the glaze in the prior art, but the finished product can only have antique texture in terms of fineness , without the whiteness and transparency of modern ceramics, especially Dehua white porcelain, the market audience is limited