1983 Volume 69 Issue 14 Pages 1615-1622
Realization of the continuous casting of undeoxidized steel is one of the most important tasks in continuous casting technology.
This report describes the development of production of the pseudo-rimmed steel with the electromagnetic stirrer installed in the mold.
(1) To produce a good slab free from CO blowholes in the subsurface layer, it is necessary to make the factors suitable, such as the position of the linear moters, stirring conditions and the shape of mold.
(2) Pseudo-rimmed steel of sol. Al[less thsn or equal]0.004%, which is equivalent to rimmed or capped steel, can be continuously cast by electromagnetic stirring the molten steel in the mold.
(3) The movement of the molten steel also has beneficial effects on the slab quality, such as uniformalization of shell thickness and reduction of inclusions near the subsurface layer.
