furnace annealing
51metalwork — metalworker, n. /met l werrk /, n. objects made of metal. [1840 50; METAL + WORK] * * * Useful and decorative objects fashioned of various metals. The oldest technique is hammering. After с 2500 BC, casting was also used, molten metal being… …
52Asa Whitney (canal commissioner) — This article is about the manufacturer, engineer, executive and politician. For the merchant and railroad projector, see Asa Whitney. Asa Whitney (December 1, 1791 Townsend, Middlesex County, Massachusetts June 4, 1874 Philadelphia, Pennsylvania) …
53lehr — n. (also leer) a furnace used for the annealing of glass. Etymology: 17th c.: orig. unkn. * * * noun also leer or lear ˈli(ə)r, ˈle(ə)r, ˈlāər ( s) …
54Materials science — Simulation of the outside of the Space Shuttle as it heats up to over 1,500 °C (2,730 °F) during re entry into the Earth s atmosphere Materials science is an interdisciplinary field applying the properties of matter to various areas of… …
55Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …
56Gladius — This article is about the sword. For other uses, see Gladius (disambiguation). Gladius Replica pseudo Pompeii gladius. Type Armin …
57Sintering — is a method used to create objects from powders. It is based on atomic diffusion. Diffusion occurs in any material above absolute zero but it occurs much faster at higher temperatures. In most sintering processes the powdered material is held in… …
58Lead glass — Swarovski flacon. Lead glass is a variety of glass in which lead replaces the calcium content of a typical potash glass.[1] Lead glass contains typically 18–40 weight% lead(II) oxide (PbO), while modern lead …
59Fire-tube boiler — A fire tube boiler is a type of boiler in which hot gases from the fire pass through one or more tubes within the boiler. It is one of the two major types of boilers, the other being the water tube boiler. A fire tube boiler can be either… …
60Metal injection molding — (MIM) is a metalworking process where finely powdered metal is mixed with a measured amount of binder material to comprise a feedstock capable of being handled by plastic processing equipment through a process known as injection mold forming. The …
