Conclusions
SP-13-1 stoppers made from Chasov-Yar clay by the plastic method with a porosity of 18 or 19% are not insufficiently spalling resistant.
When using stoppers with a porosity of 19–24%. the breakage of the spherical part of the stoppers during service ceased and the number of faulty pourings was sharply reduced.
An increase of the spalling resistance and porosity of the stoppers can be brought about by reducing the firing temperature or increasing the chamotte content in the charge to 65%.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Zima', V.K., Jhukova, E.I. & Koval'Chuk, Y.I. Improvement of operation properties of stoppers for casting steel from large-capacity ladles. Refractories 2, 384–385 (1961). https://doi.org/10.1007/BF01326491
Issue Date:
DOI: https://doi.org/10.1007/BF01326491