CASTING MOLD

CASTING MOLD

PURPOSE: To obtain gas cured casting molds which have excellent heat resistance and are free from deformation at a high temp. and crack. CONSTITUTION: Molding sand 4 consisting of zircon sand #350 (50wt.%) and zircon flower #80 (40wt.%) and the hydrolized liquid (10wt.%) of ethyl silicate contg. 16w...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: HIRAIWA JIYUNJI, KOKUBO MINORU
Format: Patent
Sprache:eng
Schlagworte:
CASTING
FOUNDRY MOULDING
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PURPOSE: To obtain gas cured casting molds which have excellent heat resistance and are free from deformation at a high temp. and crack. CONSTITUTION: Molding sand 4 consisting of zircon sand #350 (50wt.%) and zircon flower #80 (40wt.%) and the hydrolized liquid (10wt.%) of ethyl silicate contg. 16wt.% SiO2 is packed into a molding flask 4. Gaseous ammonia accelerates the gelatinization of the hydrolyzed liquid of ethyl silicate and the adjacent molding sand 4 are bonded to each other when the gaseous ammonia is blown via a hermetic sealing cap 3 into the molding sand 4 packed in the molding flask 2 and, therefore, the half-split gas cure casting molds are produced in a short time.