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21 Welsbach, Baron Carl Auer von
[br]b. 1 September 1858 Vienna, Austriad. 4 August 1929 Treibach, Austria[br]Austrian inventor of the gas mantle.[br]Welsbach studied at Vienna Polytechnic and then at Heidelberg under the distinguished German chemist Bunsen. He carried out research into the rare earth elements and in 1885 succeeded in separating didymium into two earths, neodymium and praesodymium. He observed that asbestos fibres impregnated with rare earths, when strongly heated, gave off a bright light. This was the basis for his invention of the incandescent gas mande, which he patented in 1885. He found that a mixture of 99 per cent thoria and 1 per cent ceria produced the best light. The invention was well timed, for during the 1880s gas light was being challenged by the new electric light and the Welsbach mande gave gas light a new lease of life. It was in wide use by 1900, and in that year it was further improved by the introduction of the inverted mande burner which had a higher light efficiency and better light distribution. For industrial and street lighting, Welsbach and Lucas achieved still higher efficiencies using the regenerative principle. Welsbach sought a use for the ceria waste from the lamps and formed an alloy of 35–40 per cent ceria with iron, known as Auer metal. This material is in wide use as the flint in cigarette and gas lighters.[br]BibliographyArticles in J. Chem. Ed., 1929, pp. 2,051–2, and Chemical News, 1902, pp. 254–6.LRDBiographical history of technology > Welsbach, Baron Carl Auer von
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22 пленка (на электрических контактах)
пленка (на электрических контактах)
-Параллельные тексты EN-RU
The contact material of Molded Case Circuit Breaker is silver or silver alloy which develops creation of petrochemical coat that might cause a poor connection if it gets in contact with petrochemical gas.
[LS Industrial Systems]Контакт-детали автоматических выключателей в литом корпусе выполнены из серебра или его сплава. При работе в среде, в которой присутствуют газообразные нефтехимические продукты, на поверхности контакт-деталей возможно образование адгезионной пленки, ухудшающей проводимость электрического контакта.
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Русско-английский словарь нормативно-технической терминологии > пленка (на электрических контактах)
23 coat
пленка (на электрических контактах)
-Параллельные тексты EN-RU
The contact material of Molded Case Circuit Breaker is silver or silver alloy which develops creation of petrochemical coat that might cause a poor connection if it gets in contact with petrochemical gas.
[LS Industrial Systems]Контакт-детали автоматических выключателей в литом корпусе выполнены из серебра или его сплава. При работе в среде, в которой присутствуют газообразные нефтехимические продукты, на поверхности контакт-деталей возможно образование адгезионной пленки, ухудшающей проводимость электрического контакта.
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покрывать
наносить покрытие
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[Я.Н.Лугинский, М.С.Фези-Жилинская, Ю.С.Кабиров. Англо-русский словарь по электротехнике и электроэнергетике, Москва, 1999 г.]Тематики
- электротехника, основные понятия
Синонимы
EN
слой лакокрасочного материала
Сплошной слой, полученный в результате одноразового нанесения лакокрасочного материала на окрашиваемую поверхность.
[ ГОСТ 28246-2006]
[ ГОСТ 28451-90]Тематики
EN
DE
FR
1.11. Слой лакокрасочного материала
D. Schicht
E. Coat
F. Couche
Источник: ГОСТ 28451-90: Краски и лаки. Перечень эквивалентных терминов оригинал документа
Англо-русский словарь нормативно-технической терминологии > coat
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