Title: Carbon-free casting powder for ingot casting and continuous casting

Abstract: A casting powder to be used for ingot casting and continuous casting of steel which contains substantially no carbon particles. It contains, instead of carbon particles, BN or other nitrides as an agent for adjusting fusion rate of the casting powder so as to fully prevent carburization and carbon pick-up caused by the carbon particles which has heretofore been added to the powder for control of the fusion rate. This new casting powder may contain a reducing agent in addition to the nitride.

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Inventors: Takeuchi, Hidemaro (Hikari, JA)

Application Number: 693901
Filing Date: 1976-06-08
Publication_date: 1977-07-26
Assignee: Nippon Steel Corporation (Tokyo, JA)
Primary Class(es): 75/305
Other Classes:
US Patent Ref:

2467647	Apr, 1949	Alexander	423/409.
3429661	Feb, 1969	Neuenschwander	423/409.
3450499	Jun, 1969	Yates	423/409.

Other Refs:
Primary Examiner: Rosenberg, Peter D.
Assistant Examiner:
Attorney: Watson, Leavenworth, Kelton & Taggart