METHOD AND APPARATUS FOR HEAT-STRENGTHENING GLASS SHEETS

摘要

The invention relates to a method and apparatus for heat-strengthening glass sheets. A glass sheet heated close to a softening temperature is heat strength- ened by cooling it at a certain controlled cooling rate. The cooling is effected in a space between cooling panels (9) and the cooling panels are cooled by a gas jet which is applied to the surfaces of cooling panels (9) facing away from the glass sheet. A cooling space temperature measurement can be used for controlling the power of a cooling jet.