Part one of term paper
Purifying pig iron produces steel, to get rid of the many impurities during smelting. I am going to explain how this is done, and the uses of steel produced in four furnaces. BASSEMER CONVERTER This was made in England. Molten pig iron was change to steel when air was blown through it after it was remove from the furnace. Henry Bessemer demo ...

Part two of term paper
... judged it the entire operation took about ten minutes. The steel was mainly used for ship plate and rails. In the operation the converter is tipped to the horizontal and molten iron is poured in. The blast of the air is turned up; the converter turned up to the vertical position. The air now is blowing through the metal in small streams. Modern improvements in steelmaking have come from the use of oxygen gas instead of air to burn the impurities in molten iron. OPEN HEARTH FURNACE Siemens brot ...