Method and apparatus for heat-strengthening glass sheets

Details Method and apparatus for heat-strengthening glass sheets Method and apparatus for heat-strengthening glass sheets

C - Chemistry, Metallurgy

03

B

C03B 27/044 (2006.01) C03B 27/012 (2006.01) C03B 27/016 (2006.01)

Patent

CA 2045035

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.

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