CUPOLA WELL

CUPOLA WELL

FIELD: foundry, design of blast cupola in particular. SUBSTANCE: cupola well includes several layers of burnt sand, moulding sand and silica sand is additionally lined with metallurgically active layer comprising mixture of crushed natural shungite with content of carbon 30-40% and silicon oxide 60-...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KREST'JANOV V.I, GRACHEV V.A, IGNATOV V.D, SHCHETININ L.V, KALININ JU.K, MKRTCHJAN S.R, KIRIN E.M
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
FURNACES
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
HEATING
KILNS
LIGHTING
MECHANICAL ENGINEERING
OPEN SINTERING OR LIKE APPARATUS
OVENS
RETORTS
WEAPONS
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Beschreibung
Zusammenfassung:FIELD: foundry, design of blast cupola in particular. SUBSTANCE: cupola well includes several layers of burnt sand, moulding sand and silica sand is additionally lined with metallurgically active layer comprising mixture of crushed natural shungite with content of carbon 30-40% and silicon oxide 60-70%, electrode chips and boric acid with following content of components, mas.%: shungite, 80.0-90.0; electrode chips, 10.0-20.0; boric acid, 1.5-2.0, up to 100%. EFFECT: metal deoxidation, carbonizing and siliconizing. 2 dwg, 1 tbl