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2 082 550

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IPC

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Application

92006291/02, 1992-11-16

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Actual filing date

1992-11-16

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Published

1997-06-27

(72)

Inventor

Rudnev E.V.Grazhdankin S.N.Maksutov R.F.Permjakova G.I.Pasynkeev A.A.Marakhovskij O.V.Jas'Kin V.N.Pakulev V.V.Mikhajlov N.K.Ponomareva I.B.

(73)

Holder

Nauchno-Issledovatel'Skij Institut MetallurgiiCheljabinskij Metallurgicheskij Kombinat

INGOT MOLD WORKING SURFACE ALLOYING METHOD Russian patent published in 1997 - IPC

Abstract RU 2082550 C1

FIELD: foundry. SUBSTANCE: method involves applying antisticking coat to core produced from core sand mixture; holding for 20-60 min; applying composition containing aluminum powder, cryolite, sodium chloride, refractory clay, dextrin, water glass, inhibitor. Components are used in the following ratio, wt.-%: cryolite, 2.0-5.0; sodium chloride, 9.0-11.0; refractory clay, 8.0-12.0; dextrin, 1.4-1.8; water glass, 1.5-5.0; inhibitor, 0.02-0.04; aluminum powder, the balance. Composition is distilled in water to density of 1.56-1.70 g/cub cm and applied at flow rate of 800-1,900 g/sq m. EFFECT: increased efficiency, simplified method and improved quality of mold. 1 tbl

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RU 2 082 550 C1

Authors

Rudnev E.V.

Grazhdankin S.N.

Maksutov R.F.

Permjakova G.I.

Pasynkeev A.A.

Marakhovskij O.V.

Jas'Kin V.N.

Pakulev V.V.

Mikhajlov N.K.

Ponomareva I.B.

Dates

1997-06-27—Published

1992-11-16—Filed