Method for flame abrasion of glass preform

C - Chemistry – Metallurgy – 03 – B

Patent

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Details

C03B 37/012 (2006.01) C03B 29/02 (2006.01) C03B 37/014 (2006.01)

Patent

CA 2071693

A glass preform is preheated and then subjected to flame abrasion by an oxyhydrogen flame. The surface of the glass preform thus abrased had no cracks during the cooling after the flame abrasion.

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