Patent ID: 8113267
Filing Date: 2012-02-14
Classification: B22D

Abstract:
1. A twin-roll casting machine, comprising: a pair of chilled rolls, a pair of side weirs, and first and second nozzle pieces arranged in tandem axially along an axial direction of the rolls and in a space defined by said rolls and said side weirs, each of said first and second nozzle pieces being formed with a plurality of molten-metal delivery openings, spaced apart from each other along the axial direction of the rolls, in a first surface of each of said first and second nozzle pieces that is adjacent to a first one of the rolls, each of said first and second nozzle pieces being formed with a plurality of molten-metal delivery openings, spaced apart from each other along the axial direction of the rolls, in a second surface of each of said first and second nozzle pieces that is adjacent to a second one of the rolls, said openings in the first surface being alternately positioned from said openings in the second surface in each respective first and second nozzle piece, said alternately positioned openings being at a same height relative to a nip between the rolls, and said first and second nozzle pieces having opposed ends that are slanted to the rolls, so that in said first nozzle piece said first surface is shorter in length than said second surface, and in said second nozzle piece said first surface is longer in length than said second surface.