A kind of oxidized firing sanitary ceramics and its preparation process

Abstract

The invention discloses an oxidized fired sanitary ceramic and a preparation process thereof. The oxidized fired sanitary ceramic comprises a porcelain body and a glaze layer. The glaze layer is obtained by glazing and firing glaze slurry. The glaze slurry includes the following raw materials in parts by mass, 28~33 parts of quartz, 8~12 parts of kaolin, 7~13 parts of ball clay, 0.7~1.1 parts of frit; accessories: 5~8 parts of glaze color ingredients, 0.05~0.1 parts of ferrous oxalate; the particle size of ferrous oxalate is 14~18μm; the preparation process is: apply glaze to the green body, the thickness of the glaze is 2~3mm, and obtain the product to be fired after drying; the product is obtained by firing in an oxidative atmosphere; , to quickly guide the gas in the glaze layer, and form a larger void channel, which provides a discharge channel for the gas to escape in the subsequent stage, and the surface structure defects of the glaze layer fired by the glaze layer may be reduced, improving product quality.

Description

A kind of oxidative firing sanitary ceramics and preparation process thereof technical field The present invention relates to the field of ceramics, more specifically, it relates to a kind of oxidative firing sanitary ceramics and preparation technology thereof. Background technique Sanitary ceramics are glazed ceramic products used in places such as toilets, kitchens and laboratories, including washers, water Cabinets, sinks, tubs, soap dispensers, vanity boards. There are the following production processes in the existing sanitary ceramics production process: green body slurry Material preparation - body casting - body drying - body trimming - glazing - firing. During the production process, the inventors found that for water such as water Larger sanitary ceramics such as boxes, sinks, bathtubs, etc., have glaze ripples and dot-like bulges on the surface, such as soap boxes, The probability of the appearance of small-volume sanitary ceramics with hooks is high. A...

AI Technical Summary

Problems solved by technology

[0003] The large-volume sanitary ceramics process requires the upper body to be enlarged and thickened, and the thickness of the glazing is increased, and the exhaust volume during the sintering process is increased, but the air permeability of the glaze layer formed by the drying of the glaze slurry decreases instead, so the exhaust during sintering is not as good as The relatively small volume of sanitary ceramics is adequate

Images