Tempered glass is made by heating annealed glass to 620 degrees Celsius in a furnace. From the furnace, the glass is rapidly cooled by jets of cold air, maintaining tension at the center while compressive stress is generated on the surface.
Tempered glass is made by heating annealed glass to 620 degrees Celsius in a furnace. From the furnace, the glass is rapidly cooled by jets of cold air, maintaining tension at the center while compressive stress is generated on the surface.