Method for the introduction of volatile additives into a melt
Abstract
Abstract INTRODUCTION OF VAPORIZABLE ADDITIVES, SUCH AS MAGNESIUM, INTO AN IRON MELT IN WHICH THE VAPORAZATION IS INITIATED BY A TILTING MOVEMENT OF A TREATMENT VESSEL. THE VAPORIZABLE MATERIAL IS CONTAINED IN A SEPARATE CONPARTMENT WHICH CAN BE EXTERNALLY CHARGED AND WHICH, IN ONE POSITION OF THE VESSEL SEGREGATES THE ADDITIVE FROM HTE MELT, BUT ON TILTING THE VESSEL, PERMITS COMMUNICATION WITH THE MELT THROUGH OPENINGS LOCATED A DIFFERENT LEVELS. THE VAPOR BUBBLES FORMED ASCEND THROUGH THE MELT WITH SUCH A SIZE AND IN SUCH A NUMBER THAT AT LEAST A PORTION OF THE BUBBLES ESCAPE FROM THE SURFACE OF THE MELT. THE VAPOR BUBBLES HAVE A GREAT SURFACE AREA TO PROVIDE, FOR EXAMPLE WITH MAGNESIUM, A YIELD OF AT LEAST 30% AND PREFERABLY MORE THAN 40% OF THE ADDITIVE IN THE MELT WHILE THE VELOCITY OF THE ASCENDING VAPOR BUBBLES IS SUCH AS TO PRODUCE A FLUSHING ACTION ON THE MELT RESULTING IN A REDUCTION OF THE REACTION PRODUCTS AND RESIDUAL UNDESIRABLE IMPURITIES IN THE MELT.
Inventors
- 👤 Anton Alt
Bibliographic Details
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