キャップド鋼塊の表面性状について : キャップド鋼塊の研究 I

概要

論文の詳細を見る
Using 2t, 4t and 8t bottle top molds, a number of test ingots of capped steel of C : 0.06∿0.09% and Mn : 0.36∿0.50% were made with varied teeming conditions, by application of widely different degrees of deoxidation. By the longitudinal section of these ingots, investigation about the rim zone and the distribution of blow hole was carried out and as the result the followings were clarified : 1. The thickness of solid skin was controlled by addition of Al in the ladle and the pouring rate. 2. The thickness of rim zone depended on the hitting time. The most important factor in determining the hitting time was the Al added in the ladle, when pouring height was constant. 3. The less amount of Al added in the ladle and the better design of mold decreased ingot cracks.
社団法人日本鉄鋼協会の論文
1959-10-01