METHOD FOR PRODUCTION OF DOUBLE-LAYER GLASSES FOR STEEL POURING

The invention relates to the production of refractory products, in particular to the method for production of double-layer glasses for steel pouring. A method for production of double-layer glasses for steel pouring according to which at first by method of dry pressing an operating coating of double...

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Hauptverfasser: HALCHENKO TETIANA HEORHIIVNA, PRYMACHENKO VOLODYMYR VASYLIOVYCH, ORIEKHOVA HALYNA PETRIVNA, SHULYK IRYNA HERMANIVNA
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creator HALCHENKO TETIANA HEORHIIVNA
PRYMACHENKO VOLODYMYR VASYLIOVYCH
ORIEKHOVA HALYNA PETRIVNA
SHULYK IRYNA HERMANIVNA
description The invention relates to the production of refractory products, in particular to the method for production of double-layer glasses for steel pouring. A method for production of double-layer glasses for steel pouring according to which at first by method of dry pressing an operating coating of double-layer glass is formed separately from grainy filler - electromelted stabilized zirconium dioxide and fine-grained component part - stabilized and monoclinic zirconium dioxide with additive 2-4 mass % of alumina of ?K-2 mark by the given correspondence of grainy filler and fine-grained component part, which is dried and singed at a temperature which is not lower than 1750 DEGREE C, after that around the operating coating of double-layer glass theceramic base from the refractory material is formed by the method of dry pressing with content of Al2O3 is not less than 80 mass % on a phosphate binder and the obtained double-layer glass is thermotreated, at that the ratio of thickness of ceramic base coatings and operating coating is between 1:0.3 and 0.45:0.25, but the thermal treatment of double-layer glasses is conducted at a temperature of 200-500 DEGREE C with isothermal extraction at final temperature for 6-10 hours. The invention provides the rising of compression hardness limit, thermal stability and imaginary density of double-layer glass for steel pouring.
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subjects ARTIFICIAL STONE
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
PERFORMING OPERATIONS
POWDER METALLURGY
REFRACTORIES
SLAG
TRANSPORTING
TREATMENT OF NATURAL STONE
title METHOD FOR PRODUCTION OF DOUBLE-LAYER GLASSES FOR STEEL POURING
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