Dehua Thin Bodied Porcelain and Its Preparation Technology

Abstract

One-time molding of Dehua thin-bodied porcelain and its preparation process, one-time molding of Dehua thin-bodied porcelain, including porcelain blanks and glazes, porcelain blanks include the following raw materials: Dehua kaolin, Dehua Zimujie soil, Dehua low-temperature stone , Dehua quartz stone, Dehua low-temperature stone and Dehua kaolin as the main raw materials for porcelain blanks, combined with Zimujie soil and quartz stone, because Dehua Zimujie soil is rich in organic humic acid, which can greatly increase the plasticity of the base , viscosity and fluidity, and make the dried thin body strong and not deformed. The base slurry is then formed by gypsum mold grouting, and a 0.5‑0.6mm thick green body can be obtained at one time without multiple repairs. The steps are simplified, and the success rate of thin-bodied porcelain preparation is improved.

Description

technical field [0001] The invention belongs to the field of porcelain preparation, and in particular relates to a Dehua thin-bodied porcelain formed at one time and a preparation process thereof. Background technique [0002] The output of daily-use ceramics in my country accounts for more than 62% of the world, and the annual export volume reaches more than 8 billion pieces, accounting for more than 70% of the world's total exports. However, there are generally problems such as low product grades and serious homogeneity. 0.35 Meiyuan / piece, about 1 / 3 of the international average price. At present, the domestic and foreign daily-use ceramics industry is highly competitive. Only by developing new products with high added value can it be possible to stand out in the fierce competition. Thin-bodied porcelain is also known as "bodiless porcelain" and "eggshell porcelain". The thickness of the thin-bodied porcelain body is mostly within 1mm. People call it: thin as a cicada's wi...

AI Technical Summary

Problems solved by technology

Thin-bodied porcelain is also known as "bodiless porcelain" and "eggshell porcelain". The thickness of the thin-bodied porcelain body is mostly within 1mm. People call it: thin as a cicada's wing, bright as glass, and light as a floating cloud. It is a famous Chinese traditional art porcelain. One of them is known as the "Pearl on the Crown of Chinese Ceramic Art". Due to the thin body of thin body porcelain, it is easy to deform and break during production and use, and has extremely high requirements for raw materials and manufacturing processes. Therefore, the output of thin body porcelain Very low, the production process of thin-bodied porcelain must go through more than forty processes from ingredients, blank drawing, blank trimming, glazing to painting and firing, all of which are done by hand and fired in three times, especially for blank trimming and artistic processing. It is the most precise. The trimming has to go through rough trimming, fine trimming, and fine trimming for hundreds of times, so that the thicker rough billet can be trimmed into a fine billet with a thickness of less than 1 mm in each part. Before glazing, the fine billet is placed at 750- Biscuit firing at 800°C. When glazing, the inner glaze is sprayed with glaze, and the outer glaze is sprayed with glaze. The thickness of the glaze layer is about 0.1mm. , the firing temperature is 1280-1320°C, and the green body needs to go through rough trimming, fine trimming, and fine trimming for hundreds of times before the thicker rough billet can be trimmed into a fine billet with a thickness of each part less than 1 mm. The steps are cumbersome. To be further improved