C - Chemistry – Metallurgy – 21 – C
Patent
C - Chemistry, Metallurgy
21
C
39/117, 53/346
C21C 7/00 (2006.01) B22D 7/00 (2006.01) B22D 11/00 (2006.01)
Patent
CA 1100764
ABSTRACT OF THE DISCLOSURE Steel scrap of known analysis, properly sized, cleaned and heated sufficiently to remove substantially all moisture is thrown through a closed chute in small pieces at a controlled rate and velocity into the ladle simultaneously with the pouring of the molten metal. The amount of added scrap is sufficient to lower the temperature of the mixture to that desired for pouring into a mold while being limited to an amount which will melt so as to obtain a homogeneous mixture. As the scrap is added to the ladle simultaneously with the hot metal, and proportionality thereto, the temperature of the steel is reduced uniformly and overcomes the problem of temperature variations which occur if scrap is added in conventional form.
278128
Gowling Lafleur Henderson Llp
Wallace Henry J.
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