PROCEDIMENTO PER OTTENERE GETTI DI GHISA PIENI E MACCHINA CONCHIGLIATRICE PER LA SUA REALIZZAZIONE

PROCEDIMENTO PER OTTENERE GETTI DI GHISA PIENI E MACCHINA CONCHIGLIATRICE PER LA SUA REALIZZAZIONE

Solid iron castings are produced by pouring metal into a permanent mould, and leaving it until a skin has been formed capable of holding the shape of the casting. The side-pieces of the mould are then drawn back. While the casting is cooling, the surface of the lower part is reheated, by reducing he...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: VLADIMIR STEPANOVICH ALEXEEV, GENNADY ANTOLIEVICH ANISOVICH, ALEXANDR TERENTIEVICH GOLOVATY, SERGEI VIKTOROVICH GALAGAEV, JURY KUZMICH MIKEROV SHULIM JOSIFOVCH VAINSHTEIN, VIKTOR IVANOVICH GUSAKOV
Format: Patent
Sprache:ita
Schlagworte:
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Solid iron castings are produced by pouring metal into a permanent mould, and leaving it until a skin has been formed capable of holding the shape of the casting. The side-pieces of the mould are then drawn back. While the casting is cooling, the surface of the lower part is reheated, by reducing heat extraction from the surface for the time reqd. for the decompsn. of 70-80% of the cementite. The surface is then cooled by increasing heat extraction to remove the superheat of the liq. phase. After this, it is again diminished while removing the heat of solidification.