Method for preparing positioning iron red crystal glaze

Abstract

The present invention discloses a preparation method for positioning ferreous crystal; the preparation of the base glaze is that: potassic feldspar, quartz, kaoline, ocher, steatite, limestone and bone ash are mixed with ferric oxide for grilling; the proportion of the glaze slurry is 1.6-1.7 g / cm3; the preparation method of the crystal core is that: kaoline is mixed with ferric oxide for grilling and calcining and cooling to become grain powder; and then crystal core is pre-buried in the position for the blank body to form the crystal flower; the size Phi of the preburied hole is about 1mm; the quantity and distribution are adjusted according to the actual requirement; the base glaze is put on the ceramic blank body preburied with crystal core evenly; the thickness of the glaze level is controlled on 0.7-1.0mm; the semi finished product of the ceramic glaze is baked to the maximum temperature with oxidation blaze, and then is cooled into the room temperature. The present invention uses the common ceramic raw material and the positioning crystal measure to produce the positioning ferreous crystal glaze, which solves the shortcoming that the size and the distribution for the ferreous crystal flower is hard to be controlled; the method is a stable preparation method with simple process technical, wide baking temperature range, good stability, without needing middle temperature heat preservation; the produce cost is much lower.

Description

technical field [0001] The invention belongs to the field of ceramic materials, and in particular relates to a preparation method of positioning iron red crystal glaze. Background technique [0002] With the improvement of living standards, people's demand for decorative porcelain is getting higher and higher. The aesthetic consciousness of modern people has undergone great changes. People no longer appreciate those complicated and complicated works, but are more attracted by human beings. Attracted by the extremely naive, simple and generous form of primitive art. [0003] The iron-based crystalline glaze began to be fired in the Song Dynasty, and formed a characteristic tea set decoration. It was famous at that time. There were varieties such as oil drop, rabbit hair, and partridge spot. It was one of the earliest crystalline glaze products in the world. Iron red crystalline glaze (iron safflower glaze) is a category of iron-based crystalline glazes. Its glaze surface is ...

AI Technical Summary

Problems solved by technology

However, due to its narrow crystallization temperature range; harsh firing conditions, and it is often difficult to artificially control the distribution and quantity of crystals in the glaze, the stability and repeatability of this type of product are extremely poor; Difficulties, so that this kind of products can only stay in the position of exhibits for a long time