Method of and apparatus for direct casting of metal strip

Abstract From the Canadian patent

A method of direct casting molten metal into strip by providing a melt of the metal to be cast providing a, continuously driven metal chill surface flowing a layer of, the melt onto the moving chill surface and extracting heat from the layer of melt to solidify and temporarily bond the layer of melt to the chill surface and to shrink the solidified layer and cause it to be released from the chill surface, withdrawing the released solidified layer as a continuous metal strip, establishing a natural oxide layer on the chill surface to provide an interface between the layer of melt and such chill surface, and maintaining the natural oxide in a smooth layer of substantially uniform thickness.