ROSENFELD IMAGES LTD / SCIENCE PHOTO LIBRARY ROSENFELD IMAGES LTD / SCIENCE PHOTO LIBRARY
Rolling mill. Rolling machinery (at centre) in the hot rolling mill of a steel foundry. The steel on the rolling train is glowing at lower left and centre right. Water (at lower centre) is being used to cool the equipment. Rolling consists of taking red-hot steel from a furnace and passing it through a series of rollers. The metal is rolled to produce the required shape for sale. A variety of shapes, including sheets, rods and pipes, can be made in this way. This working of the steel also improves its quality by toughening the metal and refining its crystal structure.
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