REFRACTORY CONCRETE FOR CLADDING OF SILICIUM REFINING PLUNGE AND METHOD FOR CLADDING PRODUCTION USING THE SAME

FIELD: non-iron metallurgy, in particular cladding of metal plunge. ^ SUBSTANCE: claimed refractory concrete contains (mass %): corundum mass 82-85; high-aluminous cement 4-5; electrical filter dust from silicium production 4-5; phosphoric acid 2-3; and water 3-4. Method for cladding manufacturing u...

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Bibliographic Details
Main Authors POPOV S.I, VAKORIN V.E
Format Patent
LanguageEnglish
Russian
Published 20.03.2005
Edition7
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:FIELD: non-iron metallurgy, in particular cladding of metal plunge. ^ SUBSTANCE: claimed refractory concrete contains (mass %): corundum mass 82-85; high-aluminous cement 4-5; electrical filter dust from silicium production 4-5; phosphoric acid 2-3; and water 3-4. Method for cladding manufacturing using the said concrete includes former installation into plunge; charging of refractory concrete into space between plunge internal wall and former, vibratory compaction, and two-step drying: at first at 20-250C for 5-7 days and then by graduated heating and drying. Namely, at first cladding is heated up to 1500C with rate of 6-80C/h and kept for 9-11 h; then cladding is heated up to 4000C with rate of 13-150C/h and kept for 14-16 h; then cladding is heated up to 6000C with rate of 20-220C/h and kept for 10-12 h. Cladding obtained by claimed method stands on silicium refining plunge up to 90 air thermal cycling. ^ EFFECT: cladding of improved strength. ^ 2 cl, 4 tbl, 1 ex
Bibliography:Application Number: RU20030104552