耐水素誘起割れ鋼に対するタンディッシュ内ガス吹込みによる介在物除去の効果
1994 年 80 巻 8 号 p. 611-616
詳細
1994 年 80 巻 8 号 p. 611-616
For verifying the feasibility of a new gas blowing method, using a perforated plate, the effects of the above gas blowing method on the floating removal of inclusions in a tundish was studied in actual casting experiments for hydrogen induced cracking resistance steel.
The validity of a mathematical model, previously reported, which predicts the inclusion removal efficiency was confirmed by the results of actual casting experiments. It was found by the above model that in the state of uniform bubbling flow occurred in the low superficial flow rate of gas, the faster the superficial flow rate, the higher the efficiency became. It was also found that the efficiency was independent of inclusion size.
