Glaze and glaze slurry for ceramic elbow water channel without pinhole air bubbles

Abstract

The invention discloses pinhole bubble-free glaze for a ceramic elbow water channel and glaze slurry of the glaze. The glaze is prepared from the following raw materials in percentage by mass: 15 to 20 percent of albite, 20 to 26 percent of quartz, 1 to 3 percent of kaolin, 1 to 4 percent of aluminum oxide, 9 to 14 percent of calcite, 1.5 to 4.0 percent of dolomite, 2 to 7 percent of wollastonite, 1.5 to 4 percent of zinc oxide, 15.0 to 21.0 percent of frit and 15 to 25 percent of magnesium chloride, wherein the melting temperature of the frit is 1,300 to 1,400 DEG C. According to the glaze, by the introduction of the proper amount of the high temperature frit and magnesium chloride and the adjustment of chemical components and mineral composition on the glaze surface, the glass phase content in a glaze layer is greatly increased; the smoothness and the glossiness of the glaze surface are greatly improved, the initial melting temperature (1,170 DEG C) of the glaze (glaze slurry) formula is effectively increased, and the problem of dense pinholes in the outer part of the elbow water channel is solved; and furthermore, by change of the grain composition, the granularity (less than or equal to 10 [mu]m) of the glaze slurry is controlled at 75 to 80 percent, so that the glossiness of the glazed surface is effectively improved.

Description

technical field [0001] The invention relates to a glaze for ceramics, in particular to a glaze for a water channel of a ceramic elbow without pinhole bubbles and a glaze slurry thereof. Background technique [0002] Ceramic elbow water channels are mostly used in sanitary ware. The split and conjoined sewage pipes in sanitary ware are called elbow water channels. All excrement must pass through the water channel before entering the main sewer. The smoothness of the inside of the elbow water channel is directly related to the entire flushing effect and the speed of bacterial growth, so the inner glaze of the elbow water channel must be smooth and bright to minimize frictional resistance. However, due to the glazing inside and outside the water channel of the elbow, it will reduce the speed of gas removal from the decomposition of sulfate, carbonate and other organic substances in the green body during high temperature firing, resulting in dense pinhole bubbles outside the wat...

AI Technical Summary

Problems solved by technology

However, since the inside and outside of the elbow water channel are glazed, it will reduce the speed of gas removal from the decomposition of sulfate, carbonate and other organic matter in the green body during high-temperature firing, resulting in dense pinhole bubbles outside the elbow water channel

Images