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2 021 537

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C1

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IPC

(21) (22)

Application

4955009/02, 1991-06-04

(22)

Actual filing date

1991-06-04

(45)

Published

1994-10-15

(72)

Inventor

Vdovenko I.N.Zajtsev V.L.Ipatov V.A.Kurushin B.L.Nozdrin I.V.Pogadaev V.A.Chastikov V.V.Shuba A.N.Mozhaev V.T.

(73)

Holder

Chepetskij Mekhanicheskij Zavod

METHOD FOR TREATMENT OF ZIRCONIUM Russian patent published in 1994 - IPC

Abstract RU 2021537 C1

FIELD: metallurgy. SUBSTANCE: method consists in low-temperature annealing of zirconium semifinished products (heating temperature of 350-395 C, isothermal holding 1-3 h) in combination with preliminary cold deformation with total degree of 50-90%. Such treatment allows manufacture of products with isotropic mechanical properties featuring optimal level of strength and plastic characteristics. EFFECT: facilitated subsequent complex deformation working, including operations of forging and stamping (stamping, piercing, etc), forge rolling, grinding, polishing (manufacture of spoons, joining of jewelry chains). 2 tbl

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RU 2 021 537 C1

Authors

Vdovenko I.N.

Zajtsev V.L.

Ipatov V.A.

Kurushin B.L.

Nozdrin I.V.

Pogadaev V.A.

Chastikov V.V.

Shuba A.N.

Mozhaev V.T.

Dates

1994-10-15—Published

1991-06-04—Filed

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