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The caster includes a pair of movable opposed belts, each of the belts having a casting surface and a pair of movable opposed dam blocks including a plurality of dam blocks having one end mounted to an orbiting support and a casting surface opposite the mounted end. The casting surfaces of the belts

The caster includes a pair of movable opposed belts, each of the belts having a casting surface and a pair of movable opposed dam blocks including a plurality of dam blocks having one end mounted to an orbiting support and a casting surface opposite the mounted end. The casting surfaces of the belts and the casting surfaces of the dam blocks define a bar casting zone for solidifying the molten metal into metallic bar. The caster also includes cooling bars for cooling the belts while the belts pass through the bar casting zone.

대표청구항 ▼

[ What is claimed is:] [1.] A vertical bar caster for casting molten metal into metallic bar in a casting zone, said vertical bar caster having an upper portion and a lower portion with said molten metal being introduced into said upper portion and said metal product exiting said lower portion, said

[ What is claimed is:] [1.] A vertical bar caster for casting molten metal into metallic bar in a casting zone, said vertical bar caster having an upper portion and a lower portion with said molten metal being introduced into said upper portion and said metal product exiting said lower portion, said vertical bar caster further including (i) a pair of movable opposed belts each having a casting surface and a cooling surface; (ii) a pair of movable opposed dam block means, said dam block means including a plurality of dam blocks having one end mounted to an orbiting support and a casting surface opposite said mounting end, said casting surface of said belts and said casting surfaces of said dam blocks defining a bar casting zone for solidifying said molten metal into said metallic bar; and (iii) a plurality of nozzles disposed in a cooling wall of a cooling bar means for directing a jet of coolant at said cooling surface of said belt, said nozzles in said upper portion each including a concave guiding surface having a first depth such that said jet of coolant creates a vacuum to pull said belts toward said nozzles such that belt distortion is resisted and said nozzles in said lower portion each including a guiding surface that is either (x) concave having a second depth, said second depth being less than said first depth of said concave guiding surfaces of said nozzles in said upper portion, or (y) substantially flat such that said jet of coolant creates a pressure to push said belt away from said nozzles such that intimate surface-to-surface contact between said casting surfaces of said belt and the solidifying molten metal is maintained.