METHOD OF BELL CASTING FROM TIN BRONZE

FIELD: nonferrous metallurgy, in particular casting of bells. SUBSTANCE: method includes melting of metal, mixing of molten metal, its pouring into mold and casting crystallization. All melting operations are carried out in vacuum at residual pressure of mm Hg. Melt mixing is effected by induced cur...

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Bibliographische Detailangaben
Hauptverfasser:	KORABLEV V.I, KHIMAKOV M.G, SHINGAREV EH.N, DUBIKOV A.A
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING
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Beschreibung
Zusammenfassung:	FIELD: nonferrous metallurgy, in particular casting of bells. SUBSTANCE: method includes melting of metal, mixing of molten metal, its pouring into mold and casting crystallization. All melting operations are carried out in vacuum at residual pressure of mm Hg. Melt mixing is effected by induced currents. Melt is poured into long-service graphite mold at optimal speed. Mold is preliminarily heated to temperature not below 400 C. During casting crystallization in mold, metal is additionally fed to bring shrink hole to sink head. EFFECT: manufacture of bells without gas and shrinkage porosity, nonmetallic inclusions and with fine-grained solid structure, and splendid, clear and melodious ringing. 2 cl