Description
Heat-treating processes, such as subcritical annealing, spheroidizing, patenting, harden-quench-draw, full anneal, and normalizing, and the equipment used to perform them are discussed. Types of furnaces discussed include a continuous or batch type, gas-fired radiant tube, direct fired, an alloy tube muffle, high-temperature electric, bar, pusher-tray, combination bar and coil, conventional batch, and vacuum pressure.