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Application

98101827/02, 1998-02-02

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Actual filing date

1998-02-02

(45)

Published

1999-02-20

(72)

Inventor

Veter V.V.Samojlov M.I.Babanov A.A.Pripadcheva N.A.Nosov V.A.

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Nauchno-Proizvodstvennoe Predprijatie Veter Vladimir Vladimirovich

METHOD OF HEAT TREATMENT OF WELDED JOINTS Russian patent published in 1999 - IPC

Abstract RU 2126453 C1

FIELD: heat treatment of welded joints; may be used in manufacture of shaped articles from tubular blanks of spherulitic iron. SUBSTANCE: welded joint after welding and cooling is heated to fixed temperature within 850-1000 C, and held at the fixed temperature during the time determined from the condition specified in the invention description. Then joint is cooled from the heating temperature to 600-650 C at the rate of not higher Vmax = 10 x 20,02(Tн-850) 2 C/min. Further cooling is carried out in the air. EFFECT: ductility and service stability of articles welded joints made from spherulitic iron.

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RU 2 126 453 C1

Authors

Veter V.V.

Samojlov M.I.

Babanov A.A.

Pripadcheva N.A.

Nosov V.A.

Dates

1999-02-20—Published

1998-02-02—Filed

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