oil tempering

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• Tempering — Tem per*ing, n. (Metal.) The process of giving the requisite degree of hardness or softness to a substance, as iron and steel; especially, the process of giving to steel the degree of hardness required for various purposes, consisting usually in… …   The Collaborative International Dictionary of English

• Tempering color — Tempering Tem per*ing, n. (Metal.) The process of giving the requisite degree of hardness or softness to a substance, as iron and steel; especially, the process of giving to steel the degree of hardness required for various purposes, consisting… …   The Collaborative International Dictionary of English

• Tempering — For other uses, see Temper (disambiguation). Tempered steel. The various colors produced indicate the temperature to which the steel was heated. Light straw indicates 204 °C (399 °F) and light blue indicates 337 °C (639 °F) …   Wikipedia

• tempering — Heat treating of metal alloys, particularly steel, to reduce brittleness and restore ductility. In tempering, steel is slowly heated to a temperature between 300 and 1,300 °F (150 and 700 °C), depending on desired properties, in an oil or salt… …   Universalium

• oil bath — noun : a bath of oil: as a. : a volume of oil in which a solid is submerged (as for lubrication, preservation, or tempering) b. : the container for oil so used c. : a stream of oil flowing upon a cutting tool to cool it …   Useful english dictionary

• fat and oil processing — ▪ chemistry Introduction       method by which animal and plant substances are prepared for eating by humans.       The oil and fat products used for edible purposes can be divided into two distinct classes: liquid oils, such as olive oil, peanut …   Universalium

• whale oil — noun a white to brown oil obtained from whale blubber; formerly used as an illuminant • Syn: ↑train oil • Hypernyms: ↑animal oil * * * noun : a water white to brown oil obtained from the blubber of whales and used in tempering steel, in dressing… …   Useful english dictionary

• naval ship — Introduction       the chief instrument by which a nation extends its military power onto the seas. Warships protect the movement over water of military forces to coastal areas where they may be landed and used against enemy forces; warships… …   Universalium

• steel — steellike, adj. /steel/, n. 1. any of various modified forms of iron, artificially produced, having a carbon content less than that of pig iron and more than that of wrought iron, and having qualities of hardness, elasticity, and strength varying …   Universalium

• Water heating — is a thermodynamic process using an energy source to heat water above its initial temperature. Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating. In industry, both hot water and water heated to steam have… …   Wikipedia

• metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …   Universalium