-
1 тигельная масса
Русско-английский исловарь по машиностроению и автоматизации производства > тигельная масса
-
2 тигельная масса
-
3 тигельная масса
1) Engineering: crucible material2) Silicates: crucible mixture -
4 огнеупор
-
5 Boulsover, Thomas
[br]b. 1704d. 1788[br]English cutler, metalworker and inventor of Sheffield plate.[br]Boulsover, originally a small-scale manufacturer of cutlery, is believed to have specialized in making knife-handle components. About 1742 he found that a thin sheet of silver could be fused to copper sheet by rolling or beating to flatten it. Thus he developed the plating of silver, later called Sheffield plate.The method when perfected consisted of copper sheet overlaid by thin sheet silver being annealed by red heat. Protected by iron sheeting, the copper and silver were rolled together, becoming fused to a single plate capable of undergoing further manufacturing processes. Later developments included methods of edging the fused sheets and the placing of silver sheet on both lower and upper surfaces of copper, to produce high-quality silver plate, in much demand by the latter part of the century. Boulsover himself is said to have produced only small articles such as buttons and snuff boxes from this material, which by 1758 was being exploited more commercially by Joseph Hancock in Sheffield making candlesticks, hot-water pots and coffee pots. Matthew Boulton introduced its manufacture in very high-quality products during the 1760s to Birmingham, where the technique was widely adopted later. By the 1770s Boulsover was engaged in rolling his plated copper for industry elsewhere, also trading in iron and purchasing blister steel which he converted by the Huntsman process to crucible steel. Blister steel was converted on his behalf to shear steel by forging. He is thought to have also been responsible for improving this product further, introducing "double-shear steel", by repeating the forging and faggoting of shear steel bars. Thomas Boulsover had become a Sheffield entrepreneur, well known for his numerous skills with metals.[br]Further ReadingH.W.Dickinson, 1937, Matthew Boulton, Cambridge: Cambridge University Press (describes Boulsover's innovation and further development of Sheffield plate).J.Holland, 1834, Manufactures in Metal III, 354–8.For activities in steel see: K.C.Barraclough, 1991, "Steel in the Industrial Revolution", in J.Day and R.F.Tylecote (eds), The Industrial Revolution in Metals, The Institute of Metals.JD
См. также в других словарях:
Crucible steel — Iron alloy phases Ferrite (α iron, δ iron) Austenite (γ iron) Pearlite (88% ferrite, 12% cementite) … Wikipedia
Crucible — For other uses, see Crucible (disambiguation). A modern crucible used in the production of silicon ingots via the Czochralski process A crucible is a container used for metal, glass, and pigment production as well as a number of modern laboratory … Wikipedia
crucible — /krooh seuh beuhl/, n. 1. a container of metal or refractory material employed for heating substances to high temperatures. 2. Metall. a hollow area at the bottom of a furnace in which the metal collects. 3. a severe, searching test or trial.… … Universalium
crucible — noun Etymology: Middle English corusible, from Medieval Latin crucibulum earthen pot for melting metals Date: 15th century 1. a vessel of a very refractory material (as porcelain) used for melting and calcining a substance that requires a high… … New Collegiate Dictionary
crucible — cru•ci•ble [[t]ˈkru sə bəl[/t]] n. 1) mel a container of metal or refractory material employed for heating substances to high temperatures 2) mel a hollow area at the bottom of a furnace in which the metal collects 3) a severe test or trial, esp … From formal English to slang
crucible furnace — ▪ metallurgy metallurgical furnace consisting essentially of a pot of refractory material that can be sealed. Crucibles of graphite or of high grade fire clay were formerly used in the steel industry, heated directly by fire; modern high… … Universalium
crucible — A vessel used as a container for reactions or meltings at high temperature. [Mediev. L. crucibulum, a night lamp, later, a melting pot] * * * cru·ci·ble krü sə bəl n a vessel of a very refractory material (as porcelain) used for melting and… … Medical dictionary
crucible — /ˈkrusəbəl / (say kroohsuhbuhl) noun 1. a vessel of metal or refractory material employed for heating substances to high temperatures. 2. (in a metallurgical furnace) the hollow part at the bottom, in which molten metal collects. 3. a severe,… …
crucible furnace — noun : a furnace for heating material contained in crucibles … Useful english dictionary
The Crucible — Infobox Play name = The Crucible image size = 170px caption = writer = Arthur Miller characters = Abigail Williams Reverend John Hale Reverend Samuel Parris John Proctor Elizabeth Proctor Thomas Danforth Mary Warren setting = rafeal house… … Wikipedia
Skull crucible — The Skull Crucible process was developed at the Lebedev Physical Institute in Moscow to manufacture cubic zirconia. Zirconium oxide powder is heated then gradually allowed to cool. Heating is accomplished by radio frequency induction using a coil … Wikipedia