Authors: John W. Smith, Holcroft, A Division of Thermo Process Systems Inc.
FURNACES commonly used in heat treating are classified in two broad categories, batch furnaces and continuous furnaces. In batch furnaces, workpieces normally are manually loaded and unloaded into and out of the furnace chamber. A continuous furnace has an automatic conveying system that provides a constant work load through the unit.
Authors: W. James Laird, Jr., The Metal Works Industrial Furnaces, Inc.
HEAT TREATERS can no longer use heat-treating methods that are only uniform, quick, efficient, and economical. They must also be environmentally responsible. Salt bath heat-treating methods are uniform, quick, efficient, economical, and environmentally responsible.
Authors: Revised by Robert F. Sagon-King, Can-Eng Ltd
FLUIDIZED-BED TECHNIQUES are not new to the metalworking industry. A 19th century American patent describes the roasting of minerals under fluidized-bed conditions. Other established applications include potter's clay and miner's hydraulic slurries. Systems of fluidized solid particles, such as quicksand, occur in nature.
Published: August 01, 2001
Authors: J.R. Davis, Editor
Heat treating processes that are applied to copper and copper alloys include: Homogenizing; Annealing; Stress relieving; Solution treating; Precipitation (age) hardening; Quench hardening and tempering.
Published: March 01, 2002
Authors: Matthew J. Donachie and Stephen J. Donachie
Why Heat Treat? All superalloys, whether precipitation hardened or not, generally require the application of heat for some period of time for purposes of preparing solid material for a subsequent processing step (ingot cogging, component forging, etc.).
High-temperature furnaces usually have an outer metallic shell with an interior lined with ceramic refractories for thermal insulation.
Authors: S. Lampman, ASM International
ENERGY EFFICIENCY AND COST of heat-treating operations are related concerns that are substantially affected by the method of converting stored energy into molecular kinetic energy (temperature) of the workpiece(s).
Authors: Revised by Arthur Cohen, Copper Development Association Inc.
HEAT-TREATING PROCESSES that are applied to copper and copper alloys include homogenizing, annealing, stress relieving, solution treating, precipitation (age) hardening, and quench hardening and tempering.