B - Operations – Transporting – 22 – D
Patent
B - Operations, Transporting
22
D
B22D 27/02 (2006.01) B22D 11/01 (2006.01)
Patent
CA 2054489
Abstract During electromagnetic continuous casting of rolled bars from aluminium/magnesium alloys defects in the form of vertical ripples and oxide deposits arise on the bar surface as a consequence of the greatly increased rate of oxidation at the melt surface due to the presence of magnesium in the melt, which defects make it necessary to mill over the rolled surfaces of the bar in the case of stringent requirements with respect to the surface quality of rolled products. The said surface defects can be prevented using an oxide barrier (26) which dips into the melt head (28), extends at least over the longitudinal sides (x1) of the inductor (12) and is arranged approximately parallel to and at a distance (b) from said longitudinal sides, which oxide barrier is moved backwards and forwards horizon- tally in its longitudinal direction (m). (Fig. 2)
Carrupt Bertrand
Constantin Maurice
Ebener Michel
Alusuisse Technology & Management Ltd.
Swabey Ogilvy Renault
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