Cover glaze and preparation method thereof

Abstract

The invention discloses a cover glaze which is characterized in that: the constituents of the cover glaze are as follows by weight percentage: 90-96 percent of matte fusion cake, 4-6 percent of gas knife soil, 0.08-0.2 percent of sodium carboxymethylcellulose, 0.03-0.36 percent of industrial sodium tripolyphosphate, and 0.20-0.26 percent of ceramic dispergator, and water accounting for 20-26 percent of total proportion of the raw materials. The preparation process flows of the cover glaze are as follows: raw material incoming inspection--batching--ball milling--detection--deironing and sieving--decaying--warehousing and being sieved by 250 meshes of deironing oscillating screen. The ball milling time is 7-10 hours, and ball-milling glazeslip specific gravity is 1.4-1.9g / cm<3>, and the fineness is 0.6-1.0mm; the flowing speed of the ball-milling glazeslip is controlled above 55s. The cover glaze has the advantages of transparent and smooth performance, bright color and luster and wide market prospect.

Description

technical field [0001] The invention relates to the field of ceramic raw materials, and more specifically relates to a formula of a top glaze and a preparation process thereof. Background technique [0002] The rapid growth of social economy has driven the development of the construction industry, and ceramic building materials such as ceramic products are widely used in the market because of their high hardness, good wear resistance, high density, small shrinkage deformation, and good decorative effects. Glaze is a layer of enamel covering the surface or bottom glaze of the product in the manufacturing process of enamel or ceramic products, which can resist corrosion and increase the decorative effect of the product. At present, there are many types of surface glazes in production. For example, the porcelain pieces of the prior art have different requirements for the frit in the glazing procedure, and the performance of the glaze is different. The amount of glaze must have ...

AI Technical Summary

Problems solved by technology

At present, there are many types of surface glazes in production. For example, the porcelain pieces of the prior art have different requirements for the frit in the glazing procedure, and the performance of the glaze is different. The amount of glaze must have a certain thickness, and the temperature and other performance controls Strict, products cannot be mixed firing, production scheduling is limited, production efficiency is low, traditional raw glaze has poor thermal stability, easy to produce color difference, easy to deform, small application range, high temperature viscosity, that is, Poor fluidity at high temperature, resulting in rough glaze, poor anti-fouling performance, low yield, etc. In addition, there is still room for further improvement in product transparency and smoothness