单词 | siemens pyrometer |
释义 | > as lemmasSiemens pyrometer a. Steel-making. Sometimes in combination with the name of Pierre Blaise Emile Martin (1824–1915), French engineer, as Siemens pyrometer, Siemens regenerator; Siemens furnace n. (also Siemens's furnace) an open-hearth furnace. Siemens–Martin furnace n. = Siemens furnace n. Siemens–Martin process n. the process, invented by Martin, of melting pig iron and scrap steel together in a Siemens furnace, usually in alkaline conditions. Siemens process n. a process similar to the Siemens–Martin process, but usually carried out in acidic conditions. Siemens producer n. a form of gas producer developed by the Siemens brothers (see producer n. 3). ΘΚΠ society > occupation and work > equipment > equipment for making other articles > [noun] > gas-making equipment gas producer1841 gasifier1857 Siemens producer1866 producer1890 society > occupation and work > equipment > furnace or kiln > furnace > [noun] > other furnaces retort furnace1688 stew1688 reheating furnace1818 reheating oven1839 water oven1848 Siemens producer1866 decomposing furnace1876 reheat furnace1931 exfoliator1944 society > occupation and work > industry > working with specific materials > working with metal > [noun] > conversion of metals > of iron into steel > methods or processes cementation1780 Bessemer process1864 Siemens process1866 spray steelmaking1965 spray refining1967 society > occupation and work > equipment > furnace or kiln > furnace > [noun] > furnaces for melting or refining metals > furnaces for treating iron > for producing steel retort1634 blister-steel furnace1831 Siemens furnace1866 1866 Chambers's Jrnl. 25 Aug. 543/2 For..any.. process in which an intense heat is required, the Siemens furnace is eminently suitable. 1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) III. 909 Another modification of the Siemens process consists in the use of finely-divided iron in the spongy state..instead of bars or other manufactured forms of malleable iron. 1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) III. 910 Two processes are employed at the Landore works: the Siemens-Martin process, which consists..in dissolving scrap-metal or steel in a bath of pig-metal, to which spiegeleisen is finally added; and the ore-reducing process. a1877 E. H. Knight Pract. Dict. Mech. III. 2365/2 In the Martin-Siemens reverberatory furnace the decarbonization of the pig-iron is effected by the reactions, upon the molten bath, of wrought-iron or ore and of the furnace-flame. 1877 R. W. Raymond Statistics Mines & Mining 335 Using the Siemens producer and regenerators if necessary. 1879 Encycl. Brit. IX. 846/1 The most perfect method of utilizing the waste heat hitherto applied is that of the Siemens regenerator, in which the spent gases are made to travel through chambers, known as regenerators or recuperators of heat. 1881 Encycl. Brit. XIII. 294/2 The calorific value of a unit of weight of gas from a Siemens producer is about 650. 1881 Encycl. Brit. XIII. 304/1 The other Siemens pyrometer depends on the alteration of the electrical resistance of a platinum wire when heated. 1881 Encycl. Brit. XIII. 305/1 The ball of a Siemens pyrometer can be introduced into the tuyere through the orifice. 1881 Encycl. Brit. XIII. 348/2 The Pernot furnace..is substantially a Siemens-Martin furnace with a rotating bed. 1923 R. Glazebrook Dict. Appl. Physics V. 515/1 The development of the mass production of steel by the Bessemer, Siemens, and subsequent processes rendered modern engineering possible on the present scale. 1973 R. D. Pehlke Unit Processes Extractive Metall. iv. 88 The Siemens-Martin process, commonly referred to as the open hearth process, was developed at about the same time as the Thomas process. 1974 Encycl. Brit. Macropædia XVII. 640/1 The Siemens furnace used a grate for burning solid fuel,..and the duct~work necessary to convey the gases from one end of the furnace to the regenerator chamber and the hot air to the grate at the other end was complex and inefficient. 1974 Encycl. Brit. Macropædia XVII. 640/1 Pierre and Emile Martin in France in 1864 built a furnace that was fired by gas and placed a set of two Siemens regenerator chambers at each end of the furnace. 1974 Encycl. Brit. Macropædia XVII. 640/1 This furnace became known as the Siemens-Martin furnace, or, more commonly, as the open-hearth furnace. < as lemmas |
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