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Article
Production of silicon carbide heaters at the Zaporozhe refractories factory
A partially mechanized method was developed for making nonmetallic silicon-carbide electric heaters for kilns of the KÉN-A type enabling us in the industrial conditions of the Zaporozhe factory to develop thei...
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Article
Producing mullite-corundum refractories at the zaporozhe refractories factory
The Zaporozhe Refractories Factory has introduced a method for making mullite—corundum articles from alumina and Polozhe kaolin. The technology was developed by the Ukrainian Scientific-Research Institute of R...
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Article
Improving the durability of the cores of the molds for steelcasting components
Steel Kh12 quenched from 1060–1070°C is the best material for the cores of molds.
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Article
High-density kaolin refractories
A technology was developed for the production of high-density kaolin refractories with a porosity not over 10%. Trial batches of these refractories were produced at the Zaporozhe Refractories Plant.
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Article
Chemical heat treatments for mold liners
Cementation in a solid carburizer for 12 h at 960°C followed by direct quenching in water from the carburizing temperature represents best the chemical heat treatment schedule for mold liners of steel grade 20...
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Article
High-density kaolin refractories for the lining of a 5000 m3 blast furnace
A technology was developed and adopted for producing high-density (porosity 12% or less) highalumina kaolin refractories to close tolerances, and of producing similar bricks but of increased thickness (345 × 1...
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Article
Corrections for the temperature conditions of tunnel kilns
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Article
Study of the wear resistance and choice of the optimum material for facing mold plates
The best base for alloys, wear resistant against abrasive action, is unstable residual austenite in combination with certain quantities of martensite. The wear resistance of material with this base is higher t...
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Article
Improving the wear resistance of press-mold stamp plates
Welding of the edges of stamp plates for semidry pressing of refractories is a radical method of increasing the life of the molds. The use of the welded-on alloy of average hardness (42–50 HRC) for strengtheni...
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Article
Press for double pressing of dense refractories
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Article
Stopper tubes with better spalling resistance
An improvement in the grain-size composition of the body and a reduction in segregation of the body when it is poured into the press molds permitted us to increase the spalling resistance of stopper tubes and ...
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Article
Improvement of operation properties of stoppers for casting steel from large-capacity ladles
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.