METHOD OF TREATMENT OF ALUMINUM ALLOYS

METHOD OF TREATMENT OF ALUMINUM ALLOYS

FIELD: metallurgy; methods of refining and modifying aluminum alloys. ^ SUBSTANCE: proposed method includes introduction of degassing Eutectics tablet, potassium hexafluoro -zirconate and holding at definite time. Degassing Eutectics tablet and potassium hexafluoro-zirconate are introduced together...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MURAV'EV V.I, JAKIMOV A.V, ZAPLETIN M.A, SUZ'KO N.V, PANIVAN G.E, JAKIMOV V.I, IVANOV V.V, KOSITSYN V.A
Format: Patent
Sprache:eng ; rus
Schlagworte:
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:FIELD: metallurgy; methods of refining and modifying aluminum alloys. ^ SUBSTANCE: proposed method includes introduction of degassing Eutectics tablet, potassium hexafluoro -zirconate and holding at definite time. Degassing Eutectics tablet and potassium hexafluoro-zirconate are introduced together with manganese chloride; mixture is introduced in bell; components are placed in bell layer by layer in the following sequence: manganese chloride, potassium hexafluoro-zirconate, degassing Eutectics tablet at the following mass ratio: manganese chloride: potassium hexafluoro-zirconate : degassing Eutectics tablet = 1 : (1-2) : (0.5-0.75). ^ EFFECT: improved quality of castings due to reduction of reject caused by gas cavities and microcracks; improved labor conditions due to exhaust of part of hydrogen sulfide into atmosphere. ^ 4 dwg