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Show Wrought Iron From Ore. , Wrought iron is not commonly produced pro-duced direct from the ore, but a Call-! fornia metallurgist, using petroleum ! as fuel, claims to avoid the usual troubles trou-bles and to obtain pure iron at a much : leduced cost. The ore, after grinding, to pass through a sixteen mesh sieve, Is mixed with some heavy oil, such as osphaltum. The mixture Is made Into cylinders, each of a size to yield about 150 pounds of reduced iron, and these cylinders are placed In the furnace and gradually heated to the welding point of the iron, then taken out and compressed Into blooms. A little silicate sili-cate rock is added to give slag enough to hold the semifluid mass together. To avoid reoxidation the great difficulty diffi-culty in previous processes a reducing reduc-ing atmosphere is maintained in the furnace, and the bloom is compressed before entirely removing from the furnace. fur-nace. The time required for heating through and reducing is given as four or live hours. |