Metallurgical apparatus – Linings – Having specific grain size
Patent
1979-11-30
1981-06-09
Andrews, M. J.
Metallurgical apparatus
Linings
Having specific grain size
75 95, 106 56, 264 30, F27B 1400
Patent
active
042720621
ABSTRACT:
A blast furnace hearth, or at least its internal surface layer, is built of carbon bricks whose pores have been reduced in size by an Si--N--O composition formed in them.
REFERENCES:
patent: 3923531 (1975-12-01), Parsons et al.
Fuziwara Shigeru
Tamura Shinichi
Andrews M. J.
Nippon Steel Corporation
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