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1 iron ores
lapisan bijih besi -
2 iron ores
• желязна руда -
3 blending of iron ores
Техника: усреднение железных руд -
4 black iron ores
• магнетит• жиломелан, манганова рудаEnglish-Bulgarian polytechnical dictionary > black iron ores
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5 bog-iron ores
• гъбест лимонит• хидратирани железни окиси -
6 brown iron ores
• лимонитEnglish-Bulgarian polytechnical dictionary > brown iron ores
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7 chrome iron ores
• хромитEnglish-Bulgarian polytechnical dictionary > chrome iron ores
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8 green iron ores
• дюфренитEnglish-Bulgarian polytechnical dictionary > green iron ores
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9 white iron ores
• сидеритEnglish-Bulgarian polytechnical dictionary > white iron ores
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10 clayband iron ores
பட்டை இரும்புத் தாது -
11 желязна руда
iron oreiron oresгеол.ironstone -
12 лимонит
bean orebean oresbrown hematitebrown hematitesbrown iron orebrown iron oresминер.limonite -
13 сидерит
black band ironstoneминер.chalybiteминер.iron carbonateминер.iron carbonatesминер.iron earthминер.iron earthesминер.sideritewhite iron orewhite iron ores -
14 Thomas, Sidney Gilchrist
SUBJECT AREA: Metallurgy[br]b. 16 April 1850 London, Englandd. 1 February 1885 Paris, France[br]English inventor of basic steelmaking.[br]Thomas was educated at Dulwich College and from the age of 17, for the next twelve years, he made his living as a police-court clerk, although he studied chemistry in his spare time as an evening student at Birkbeck College, London. While there, he heard of the difficulties encountered by the Bessemer steelmaking process, which at that time was limited to using phosphorus-free iron. Any of this element present in the iron was oxidized to phosphoric acid, which would not react with the acidic lining in the converter, with the result that it would remain in the iron and render it too brittle to use. Unfortunately, phosphoric iron ores are more common than those free of this harmful element. Thomas was attracted by the view that a fortune awaited anyone who could solve this problem, and was not discouraged by the failure of several august figures in the industry, including Siemens and Lowthian Bell.Thomas's knowledge of chemistry taught him that whereas an acidic lining allowed the phosphorus to remain in the iron, a basic lining would react with it to form part of the slag, which could then be tapped off. His experiments to find a suitable material were conducted in difficult conditions, in his spare time with meagre apparatus. Finally he found that a converter lined with dolomite, a form of limestone, would succeed, and he appealed to his cousin Percy Carlyle Gilchrist, Chemist at the Blaenavon Ironworks in Monmouthshire, for help in carrying out pilot-scale trials. In 1879 he gave up his police-court job to devote himself to the work, and in the same year they patented the Thomas- Gilchrist process. The first licence to use it was granted to Bolckow, Vaughan \& Co. of Middlesborough, and there the first steel was made in a basic Bessemer converter on 4 April 1879. The process was rapidly taken up and spread widely in Europe and beyond and was applied to other furnaces. Thomas made a fortune, but his health did not long allow him to enjoy it, for he died at the early age of 34.[br]BibliographyL.G.Thompson, 1940, Sidney Gilchrist Thomas, an Invention and Its Consequences, London: Faber.T.G.Davies, 1978, Blaenavon and Sidney Gilchrist Thomas, Sheffield: Historical Metallurgy Society.LRDBiographical history of technology > Thomas, Sidney Gilchrist
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15 магнетит
black iron oreblack iron oresминер.leading stoneминер.leading stonesминер.loadstoneгеол.magnetic ironгеол.magnetic ironsминер.magnetite -
16 гъбест лимонит
bog-iron orebog-iron ores -
17 дюфренит
dufrenitegreen iron oregreen iron ores -
18 жиломелан
black iron oreblack iron ores -
19 манганова руда
black iron oreblack iron ores -
20 хидратирани железни окиси
bog-iron orebog-iron oresБългарски-Angleščina политехнически речник > хидратирани железни окиси
См. также в других словарях:
iron ores — Смотри руды черных металлов … Энциклопедический словарь по металлургии
iron ores — Смотри железные руды … Энциклопедический словарь по металлургии
Iron ore — Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in colour from dark grey, bright yellow, deep purple, to rusty red. The iron itself is usually found in the … Wikipedia
Iron — I ron ([imac] [u^]rn), a. [AS. [=i]ren, [=i]sen. See {Iron}, n.] [1913 Webster] 1. Of, or made of iron; consisting of iron; as, an iron bar, dust. [1913 Webster] 2. Resembling iron in color; as, iron blackness. [1913 Webster] 3. Like iron in… … The Collaborative International Dictionary of English
Iron age — Iron I ron ([imac] [u^]rn), a. [AS. [=i]ren, [=i]sen. See {Iron}, n.] [1913 Webster] 1. Of, or made of iron; consisting of iron; as, an iron bar, dust. [1913 Webster] 2. Resembling iron in color; as, iron blackness. [1913 Webster] 3. Like iron in … The Collaborative International Dictionary of English
Iron cement — Iron I ron ([imac] [u^]rn), a. [AS. [=i]ren, [=i]sen. See {Iron}, n.] [1913 Webster] 1. Of, or made of iron; consisting of iron; as, an iron bar, dust. [1913 Webster] 2. Resembling iron in color; as, iron blackness. [1913 Webster] 3. Like iron in … The Collaborative International Dictionary of English
Iron clay — Iron I ron ([imac] [u^]rn), a. [AS. [=i]ren, [=i]sen. See {Iron}, n.] [1913 Webster] 1. Of, or made of iron; consisting of iron; as, an iron bar, dust. [1913 Webster] 2. Resembling iron in color; as, iron blackness. [1913 Webster] 3. Like iron in … The Collaborative International Dictionary of English
Iron cross — Iron I ron ([imac] [u^]rn), a. [AS. [=i]ren, [=i]sen. See {Iron}, n.] [1913 Webster] 1. Of, or made of iron; consisting of iron; as, an iron bar, dust. [1913 Webster] 2. Resembling iron in color; as, iron blackness. [1913 Webster] 3. Like iron in … The Collaborative International Dictionary of English
Iron crown — Iron I ron ([imac] [u^]rn), a. [AS. [=i]ren, [=i]sen. See {Iron}, n.] [1913 Webster] 1. Of, or made of iron; consisting of iron; as, an iron bar, dust. [1913 Webster] 2. Resembling iron in color; as, iron blackness. [1913 Webster] 3. Like iron in … The Collaborative International Dictionary of English
Iron flint — Iron I ron ([imac] [u^]rn), a. [AS. [=i]ren, [=i]sen. See {Iron}, n.] [1913 Webster] 1. Of, or made of iron; consisting of iron; as, an iron bar, dust. [1913 Webster] 2. Resembling iron in color; as, iron blackness. [1913 Webster] 3. Like iron in … The Collaborative International Dictionary of English
Iron founder — Iron I ron ([imac] [u^]rn), a. [AS. [=i]ren, [=i]sen. See {Iron}, n.] [1913 Webster] 1. Of, or made of iron; consisting of iron; as, an iron bar, dust. [1913 Webster] 2. Resembling iron in color; as, iron blackness. [1913 Webster] 3. Like iron in … The Collaborative International Dictionary of English