HEAT TRANSFER IN SPRAY QUENCHING
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Abstract
The focus of this experiment is to investigate the spray quenching characteristics and heat transfer rate of H-40 steel plate under a atmospheric conditions. Cooling of tool steel surfaces with flat nozzles was studied experimentally. The importance of coolant temperature on coefficient of heat transfer was investigated. Experiment test were performed with H-40 steel plate using two different method direct water deeping and air-water spray cooling(water and ethylene glycol). Experiments were conducted on an heated flat rotary steel plate of dimension 200 mm x 6 mm. The cooling rates were calculated from the time dependent temperature profiles were recorded during the experiment conducted.
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