Metal strip casting

Details Metal strip casting Metal strip casting

B - Operations, Transporting

22

D

B22D 11/06 (2006.01) B22D 11/12 (2006.01)

Patent

CA 2150460

Method and apparatus for continuously casting metal ship (20) of the kind in which a casting pool of molten metal (30) is formed in contact with a moving casting surface (16A) such that metal solidifies from the pool onto the moving casting surface. By making the casting surface (16A) very smooth and inducing relative vibratory .. between the molten metal and the casting surface at selected frequency and amplitude, the heat transfer from the solidifying metal is dramatically improved. The casting surface has an Arithmetical Mean Roughness Value (Ra) of less than 5 microns and the induced vibratory movement preferably has a frequency of no more than 20 kHz. This enables improved casting productivity and also produces a marked refinement of the surface structure of the cast metal.

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