| 单词 | spray refining |
| 释义 | > as lemmasspray refining spray refining n. ΘΚΠ 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 1967 A. H. Cottrell Introd. Metall. xi. 141 Very recently a new steel~making process, spray-refining, has been developed by the British Iron and Steel Research Association. A stream of molten iron from a blast furnace falls through a ring of jets, which breaks it up into droplets,..and a second ring of jets which inject powdered lime and other fluxes. 1975 Steel USSR V. 493 The optimum working pressure in the chamber for carrying out spray refining of pig iron in a vacuum is 150 mmHg. < as lemmas |
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