WORKING ZONE. That portion of the enclosed volume of a piece of thermal processing equipment occupied by parts or raw material during the soaking portion of a thermal treatment. It is usually, but not always, a high percentage of the total enclosed volume. It may include more than one control zone.
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SEVERITY OF QUENCH. Ability of quenching medium to extract heat from a hot steel workpiece; expressed in terms of the H value.
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SCLEROSCOPE TEST. A hardness test in which the loss in kinetic energy of a falling metal “tup,” absorbed by indentation upon impact of […]
THERMAL FATIGUE. Fracture resulting from the presence of temperature gradients that vary with time in such a manner as to produce cyclic stresses […]