FIELD: metallurgy.
SUBSTANCE: method involves pouring the metal melt into the casting mould cavity through the center gate system, the high melting inoculating particles supply into the center, and extracting of the hollow tube billet from the casting mould upward. The billet extraction from the casting mould is carried out at the rate of 0.05-0.08 m/min.
EFFECT: uniform distribution of the introduced modifier in the hollow tube billet.
1 dwg, 1 ex
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