Pig Iron - History

History

The Chinese were making pig iron by the later Zhou Dynasty (1122–256 BC). In Europe, the process was not invented until the Late Middle Ages (1350–1500). Actually the phase transition of the iron into liquid phase in the furnace was an avoided phenomenon, as decarburizing the pig iron into steel was an extremely tedious process with medieval technology.

Read more about this topic:  Pig Iron

Famous quotes containing the word history:

    The thing that struck me forcefully was the feeling of great age about the place. Standing on that old parade ground, which is now a cricket field, I could feel the dead generations crowding me. Here was the oldest settlement of freedmen in the Western world, no doubt. Men who had thrown off the bands of slavery by their own courage and ingenuity. The courage and daring of the Maroons strike like a purple beam across the history of Jamaica.
    Zora Neale Hurston (1891–1960)

    The history of all previous societies has been the history of class struggles.
    Karl Marx (1818–1883)

    There is no example in history of a revolutionary movement involving such gigantic masses being so bloodless.
    Leon Trotsky (1879–1940)