Steel workers gaze on as molten steel is poured from ladle to casts at Homestead Steel Works, December 31, 1914. PD Andrew Carnegie's relentless efforts to drive down costs and undersell the ...
April 10, 1864.—The modern process of manufacturing open hearth steel was started by PierreEmile Martin, who melted together pig-iron, scrap, and iron ore in a Siemen's regenerative furnace. Martin's ...
IN open-hearth steel-making, chemical reactions take place between the metal bath and a supernatant slag layer, and any material balance on the process demands an accurate knowledge of the masses ...
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