エルー式電氣爐に依る低燐銑の製造
1951 年 37 巻 4 号 p. 194-202
詳細
1951 年 37 巻 4 号 p. 194-202
In our country, the high grade carbon steel have been maked chiefly with the acidic open hearth furnace, for which the low phosphorus pig iron is needed.
Auther maked it with Heroult's electric furnace from the steel scraps, investigated it statistically and decided the standard operation; following results were obtained.
(1) Cost of making is cheap, but operation is very delicate.
(2) The problem of carbon addition must be most researched.
(3) In taking phosphorus off, the basisity and (ΣFeO)% of the slag agree with tbe result of Schenk's theory; basisity is 1.5-2.0, (ΣFeO)% is 20-30% and operation temperature is 1300-1450°C
(4) Sulphur matters little.
