New refractories for closing iron notches and ramming troughs

Autor: N. T. Danaev, V. M. Gorobtsov, G. M. Nikitin, V. F. Sereda, A. M. Pecherkin, V. N. Belyakov, V. I. Derkach
Rok vydání: 1990
Předmět:
Zdroj: Metallurgist. 34:279-280
ISSN: 1573-8892
0026-0894
DOI: 10.1007/bf00750117
Popis: The nonaqueous trough refractories used previously had the following composition: crushed coke 34-36%; powdered fireclay 20-24%; ground refractory clay 12-16%; pitch 4-5%; prepared coal tar 23-25%. After the use of this refractory for some period of time, the fireclay (which costs 20 rubles/ton) and coke fines (costing about 35 rubles/ton) were partially replaced by molding sand (1.4 rubles/ton). The sand, supplied by the NizhneUvel'sk quarry of the Chelyabinsk Mining Administration, conforms to the requirements of GOST 2178-56. The characteristics of the sand and the powdered fireclay are as follows
Databáze: OpenAIRE
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