大型鋼塊の凝固および偏析に関する研究(I)
bar test法による鋼塊凝固速度の直接測定
1958 年 44 巻 1 号 p. 9-14
詳細
1958 年 44 巻 1 号 p. 9-14
Upon the problems involved in the study of solidification and segregation of larger steel ingots numerous papers have hitherto been published. Nevertheless their nature is still vague from both scientific and practical points of view.
The authors intend to throw more light upon this problem in a series of observations, measurements and calculations dealing with actual ingots.
In this 1st paper, they report the vertical solidification rate of more than 40 killed, concave and octagonal, ingots ranging from 3 to 75 tons, measured by the bar-test method with 9mm dia. mild steel.
The result showed typical solidification curves for various sizes, effect of composition upon the observed solidification rate, relation between solidification rate and nominal ingot size, effect of bottom shape on the solidification curve, change of temperature in feeder heads during solidification, etc. An analytical study on the solidification curve was also presented.
