Abstract
The first experimental use of oxygen in the open hearth furnace was conducted at the Amagasaki Steel Co. from June to August of 1948.
The following procedures were tried by using oxygen to shorten the melt down period.
1. Introduction of oxygen into the burner.
2. Introduction of oxygen through the jet device directly on preheated scrap.
Oxygen was also used for decarburization of molten bath by bessemerizing.
The results obtained were as follows:- 1. Fuel consumption per ton of ingot was decreased.
2. Production per hour was increased. 3. Quality, yield and surface of ingot obtained from the oxygen heats were equal to those of regular practice.
