Abstract

A method for the production of 2.0mm thick tempered glass plates by using the impingement of air jets and its subsequent heat transfer was studied experimentally. Tempering degree of glass plate specimen was estimated by measuring the fragment density. It was found that 2.0mm thick tempered glass plates produced by lack-expansion flow had favorable tempering degree and also good surface condition for practical use. Heat transfer coefficient was approximately calculated by Reynolds number and nozzle stand-off distance in the condition of the lack-expansion flow instead of subsonic flow.

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