Stainless steel (AISI 304) ball bearings, which have uniformly been heated to 850 o C, are hardened
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Question:
(a) If quenching is to occur until the surface temperature of the balls reaches 100o C, how long must the balls be kept in the oil? What is the center temperature at the conclusion of the cooling period?
(b) If 10,000 balls are to be quenched per hour, what is the rate at which energy must be removed by the oil bath cooling system in order to maintain its temperature at 40o C?
Related Book For
Principles of heat transfer
ISBN: 978-0495667704
7th Edition
Authors: Frank Kreith, Raj M. Manglik, Mark S. Bohn
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