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Application

2003136212/02, 2003-12-15

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Start date

2003-12-15

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Actual filing date

2003-12-15

(45)

Published

2005-11-10

(72)

Inventor

Jakimov V.I.Panivan G.E.Kositsyn V.A.Suz'Ko N.V.Jakimov A.V.Murav'Ev V.I.Zapletin M.A.Ivanov V.V.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Aviatsionnoe Proizvodstvennoe Ob"Edinenie Im. Ju.A. Gagarina"

METHOD OF TREATMENT OF ALUMINUM ALLOYS Russian patent published in 2005 - IPC

Abstract RU 2263720 C2

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

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RU 2 263 720 C2

Authors

Jakimov V.I.

Panivan G.E.

Kositsyn V.A.

Suz'Ko N.V.

Jakimov A.V.

Murav'Ev V.I.

Zapletin M.A.

Ivanov V.V.

Dates

2005-11-10—Published

2003-12-15—Filed