Manufacturing process of furnace transmutation enamel

Abstract

The invention discloses a process for manufacturing a kiln transformation glaze porcelain. The manufacture process comprises the steps of blank making, forming, enameling and burning, wherein a carving step is arranged between the enameling step and the burning step; in the invention, inferior porcelain clay and secondary clay, which are abundant, low in price and high in ferrotitanium content, are used as main materials for production of kiln transformation glaze porcelains, by adding rare earth metal elements such as iron-titanium oxide, cerium and cesium, etc., the physical-chemical properties of blank glaze, and produced blank colors and kiln transformation colors of porcelain are mixed, and the color development is simple and natural, the coloring is mild, deep colors and light colors go well with each other, and lines and contours are clear; the invention optimizes the allocation of porcelain resources, fully utilizes unrenewable mineral resources, lowers production cost, improves economic benefits of the ceramic industry and opens up a new path for the supply of porcelain materials.

Description

technical field [0001] The invention relates to the field of ceramic processing and manufacturing, in particular to a manufacturing process of kiln-transformed glazed porcelain. Background technique [0002] The ancient color and kiln transformation technology of ancient porcelain making in my country can be regarded as a unique skill in the world. The selection of porcelain clay is an extremely important part of the entire porcelain making process. In the production of traditional ceramics, general ceramic manufacturers are accustomed to using china clay with low iron and titanium content, because Fe in raw glaze raw materials 2 o 3 For every 0.1% increase in the content of Fe, the whiteness of ceramic products will decrease by 1.4 degrees; while Fe 2 o 3 and TiO 2 When the total amount is 0.18-0.57%, every 0.1% Fe increase 2 o 3 or TiO 2 , the whiteness of the product will be reduced by 1.8 degrees. Therefore, in order to improve the whiteness of ceramic products, ...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of the present invention is to provide a manufacturing process of kiln-changed glazed porcelain, which uses inferior china clay and secondary clay with high iron-titanium content, abundant reserves and low price as the main raw materials to produce variable-glazed porcelain. The high-iron-titanium porcelain clay can not be used due to idle waste, and there is no need to select and remove iron from the porcelain clay, which saves production costs, and the produced glazed porcelain is beautiful, practical, and has good economic prospects.

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