Century Dictionary and Cyclopedia
- n. The process or art of treating substances by means of heat, so as to remove their brittleness and at the same time render them tough and more or less elastic. In general, these results are obtained by heating to a high temperature and then cooling very gradually. All glassware, china, etc., which is to be subjected to great changes of temperature should be thus treated. The working of iron and steel by hammering, bending, rolling, drawing, etc., tends to harden them and make them brittle, and the original properties are restored by annealing. Steel plates and dies for bank-note printing and the like are annealed in a close box with iron filings or turnings, lime, or other substances, and are thus freed from carbon and reduced to pure soft iron, in which state they will readily take, under pressure, the finest engraving from a hardened plate or die. They are then hardened again to the degree necessary for their use in printing. Steel for engraving dies is commonly annealed by heating it to a bright cherry-red color, and cooling it gradually in a bed of charcoal.
- n. Same as tempering.
- n. A founders' term for the slow treatment of the clay or loam cores for castings, which, after having been dried, are burned or baked, and then are slowly cooled.
- n. The act of heating solid metal or glass to high temperatures and cooling it slowly so that its particles arrange into a defined lattice.
- v. present participle of anneal.
GNU Webster's 1913
- n. The process used to render glass, iron, etc., less brittle, performed by allowing them to cool very gradually from a high heat.
- n. The burning of metallic colors into glass, earthenware, etc.
- n. hardening something by heat treatment
“The term annealing usually implies relatively slow cooling.”
“Distribute Attachment 8-A, "Water and Oil Quenching" and ask participants to define and discuss the terms annealing, hardening and tempering.”
“These bubbles and channels form within the polymers as they are being created in a baking process, called annealing, that is used to improve the materials 'performance.”
“The process involves high pressures, high temperatures, irradiation, and annealing, which is the precise control of the heating and cooling process.”
“This process was called annealing, and the oven with a movable floor was technically denominated a leer.”
“We didn't even consider the idea of annealing helicases before this study started," said Kadonaga.”
“This process is called "annealing" and is exactly analagous to the physical process (used to produce stable crystalline formations) of the same name.”
“350° C. up to just below the lower critical, and forms sorbitic steel; while "annealing" refers to a heating for grain size at or above the transformation ranges, followed by a slow cooling.”
“Softening the blank rounds: The round blanks are the softened and cleaned by exposing them to higher temperatures in an annealing furnace, putting them in the tumbling barrels and finally into moving cylinders containing some chemicals.”
“If you do this neck reaming and annealing should also be done.”
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