METHOD FOR HEAT-STRENGTHENING OF GLASS SHEETS AND DEVICE FOR ITS REALIZATION Russian patent published in 1994 - IPC

FIELD: heat-strengthening of glass sheets; applicable in manufacture of bent heat-strengthened glass sheets for glazing automobile apertures. SUBSTANCE: production flow line for glass sheet heat-strengthening has furnace, heater, means for bending, and means for cooling; all located successively along horizontal conveyor for glass sheets. Heater is arranged between furnace and means for bending, and designed for maintaining the temperature of glass sheets at preset level. Heater has side walls formed by many brushes and may be selectively extended along path of glass sheet motion. Heater has regulating heating means. Cooling means has many tubes located from top and bottom of the glass sheet motion path and communicated with compressed air source. Tubes are arranged in rows square to path of glass sheet motion and columns parallel to path of motion to impart to glass sheets the properties meeting the requirements imposed upon the character of glass sheet fracture. EFFECT: higher efficiency. 25 cl, 9 dwg