Production Cycle For Single-Fired Glazed Tile

PREPARATION OF THE MIX

· Single-fired white ware: carried out by wet grinding and followed by spray drying
· single-fired red ware: carried out by dry grinding and wetting, dry grinding followed by granulation, and wet grinding and spray drying ( depending on the speed of firing and the desired degree of porosity of the final product )

SHAPING

· obtained by dry pressing with hydraulic presses

DRYING

· carried out in fast hot-air driers

GLAZING

· In the single-firing production cycle this operation is carried out before firing and also consists of two sub-phases.

· Preparation of the glaze is achieved by wet grinding the glaze mix (formed by various components, frit, kaolin, additives, etc.)·application of the glaze by various techniques and machinery and equipment are used depending on the desired aesthetic effects.

FIRING

· Firing is carried out in roller kilns. The firing temperature differs slightly depending on the type of mix and the desired extent of porosity in the final product:

1. single-fired red ware T= 1100 to 1150 °C
2. single-fired white ware T= 1150 to 1200 °C