Level meter in a mold for continuous casting
AssigneeAsea AB
InventorSten Kollberg
Life of this patent
Estimating the term…
Abstract
A level meter in a mold for continuous casting has an assembly including a continuous casting mold, an annular multi-phase electromagnetic stirrer surrounding the mold, and a source of radioactivity projecting a beam of radiation through the mold, a detector for the beam being positioned on the opposite side of the mold. To permit the stirrer to have a height providing optimum stirring, two of the coils of the stirrer have portions of reduced height forming spaces opposite to each other and through which the beam can be projecting to the detector. Therefore, the height of the stirrer need not be reduced to provide for the beam and detector arrangement.
Claims4
Apparatus for continous casting and comprising a continuous casting mold, an annlar multi-phase stirrer surrounding the mold and electromagnetically stirring a melt in the mold, said stirrer comprising an annular series of vertically elongated wire coils which are juxtapositioned in contact with each other and free from gaps in the circumferential directon of the stirrer, said stirrer having a circumferentially continuous annular core free from gaps in the circumferential direction and having pole pieces extending radially inwardly through the coils and towareds the mold, said apparatus including a melt level meter having a beam projector projecting a beam through the mold and positioned on one side of the mold, the projector and a detector being positioned diametrically oppostie to each other at a horizontal level at least partially below the top level of the stirrer, said stirrer having diametrically opposite spaces having openings facing the mold, and forming clearance for a beam projected from the beam projector to the beam detector.
Dependencies are inferred from the claim text.