Formulation of oil-shovel glaze oil for antique porcelains

1, raw material glaze, glaze with all the raw materials are not pre-selected melting, directly add water modulation and pulp.

2, fused glaze, glaze slurry, the first part of the raw materials melted into a glassy substance and quenched with water into a small piece (fused), and then mixed with the rest of the raw materials into a glaze slurry ball mill.

3, salt glaze, this glaze does not need to be prepared in advance, but in the product calcined to high temperature, into the kiln salt, salt volatiles make the surface of the blank to form a thin layer of glassy material.

4, earth glaze, this glaze is natural colored clay after washing directly as a glaze.

5, feldspar glaze, this glaze is mainly made of quartz, feldspar, lime, and clay, it is characterized by hardness, strong luster, transparent, with a soft sense of firing wide range.

6, lime glaze, this glaze is mainly made of calcium oxide as a flux, and the number of calcium oxide molecules should account for more than half of the lime glaze is flexible, glossy and strong, can also be burned into a glaze and milky glaze, the disadvantage is that the range of firing is narrower, products are easy to smoke.

7, lead glaze, this glaze partially quoted lead oxide as a flux, often used together with boron oxide, strongly reduce the melting temperature of the glaze, lead and lead-boron glaze, the biggest advantage is the strong gloss, elasticity is good, can be applied to a variety of blanks, and can strengthen the color of the color glaze coloring, but taking into account the hazards of lead toxicity, at present, should try to minimize the use.