Litʹë i Metallurgiâ (Feb 2002)

Estimation of influence of uniflow closed-bottom thimbles on subshrinking liquidation

  • E. V. Ivanov,
  • A. V. Olenchenko,
  • M. E. Kontanistov,
  • A. I. Nosovets

DOI
https://doi.org/10.21122/1683-6065-2002-1-113-116
Journal volume & issue
Vol. 0, no. 1
pp. 113 – 116

Abstract

Read online

There is developed the technology of steel cast at MNLZ- 3 with protection of metal stream against secondary oxidation in zone flushing bowl-crystallizer through closed-bottom quartz immersible thimbles. At cast of cord steel grades at MNLZ- 3 the application of closed-bottom quartz immersible thimbles of type SKSB-79 enabled to decrease the density of metal- oxide impurities with diameter 5,5 mm by 29 %, and Significance subshrinking liquidation by 14,2 and 25 %.