February 1964
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5 Reads
Metallurgist
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February 1964
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5 Reads
Metallurgist
July 1963
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6 Reads
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1 Citation
Refractories and Industrial Ceramics
The equipment of the Nikitov Dolomite Combine (NDK) was used to develop the production of dense magnesite-chromite roof refractories using a technology developed by UNIIO. Testing of these refractories in the roofs of open-hearth furnaces at the Kirov Metallurgical plant, working on natural gas, showed an increase in their life of 15–17% with a simultaneous increase in the output as a result of combined use of oxygen. It is necessary to organize the production of dense roof refractories using the UNIIO method, making it possible to increase the life of roofs in conditions of intense operations of open-hearth furnaces.
July 1961
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4 Reads
Refractories
Roof brick with trapezoidal openings instead of round ones was manufactured under industrial conditions. The possibility in principle has been shown of mass-producing intricately-shaped units with holes not only of re rectangular shape, but also with sharp corners, in the form of a dovetail. The batch production of these parts on hydraulic presses with a single pressing cycle is advised. Research should be carried out on further improving the shape of roofbrick and ceramic suspensions for heat insulated roofs.