THE MASS OF GLASS-CRYSTALLINE ENAMEL TYPE COATING ON THE STEEL.

摘要

There is invented composition of glass-crystalline enamel type coating on the steel alloy, which provides reducing required amount of pigment. At the same time is provided reducing crystallization time of enamel surfacing due to formation of crystalline phases of crystobalite and tridimite therein. For their part that provides the necessary thermal expansion of enamel coating. As an accelerator for crystallization of enamel (crystallizer) is added mixture of ground sand (1 part by weight) and soda (3 parts by weight) which is thermally treated within 1-2 hours at a temperature of 1000 to 1200 centigrade and after that is additionally ground. The mentioned crystallizer is added in amount of 30 to 70 parts by weight per 100 parts by weight of enamel frit.