Patenton — panteon of patents

(19)

RU

(11)

2 112 049

(13)

C1

(51)

IPC

(21) (22)

Application

97103281/02, 1997-03-12

(22)

Actual filing date

1997-03-12

(45)

Published

1998-05-27

(72)

Inventor

Shulezhko A.F.Shanilov V.A.Pojarkov V.A.Furman Ju.S.Pogorelova I.G.Tetjueva T.V.Shevelev A.V.Prokhorov N.N.Galichenko E.N.Medvedev A.P.Semerikov K.A.

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Metallurgicheskij Zavod"Predprijatie

METHOD OF PRODUCTION OF SEAMLESS PIPES FROM LOW-CARBON STEEL Russian patent published in 1998 - IPC

Abstract RU 2112049 C1

FIELD: production of oil and gas pipes resistant to cold and to media containing hydrogen sulfide, CO and media contaminated with sulfate-reducing bacteria. SUBSTANCE: the offered method includes steel melting, production of casting, rolling, intermediate heating, cooling, hardening and tempering. After melting, steel is blown in ladle with argon and treated with synthetic slag and subjected to hot rolling. Then, pipe is subjected to preliminary hardening from heating temperature of AAc3 +(30-50)C, intermediate heating up to 550-600 C, straightening, cooling in the air, final hardening from intercritical interval of 750-830 C and tempering at 600-700 C. EFFECT: higher resistance to cold and corrosion and extend field of use of pipes produced by the offered method. 1 tbl

Similar patents RU2112049C1

Title Year Author Number
METHOD OF MANUFACTURE OF SEAMLESS PIPES FROM LOW- CARBON STEEL 2001
  • Kuznetsov V.Ju.
  • Frolochkin V.V.
  • Lube I.I.
  • Suponin A.G.
  • Pecheritsa A.A.
  • Kuznetsova E.Ja.
  • Nekljudov I.V.
  • Anishchenko V.V.
 RU2210604C2
PROCESS OF MANUFACTURE OF PIPES FROM CARBON STEEL 1998
  • Brizhan A.I.
  • Grekhov A.I.
  • Zhukova S.Ju.
  • Krivosheeva A.A.
  • Marchenko L.G.
  • Medvedev A.P.
  • Mukhin M.Ju.
  • Popovtsev Ju.A.
  • Tetjueva T.V.
  • Usov V.A.
 RU2132396C1
METHOD OF THERMALLY TREATING PIPES 1996
  • Prokhorov N.N.
  • Galichenko E.N.
  • Medvedev A.P.
  • Tetjueva T.V.
  • Laptev V.A.
  • Degaj A.S.
  • Grigor'Ev A.G.
  • Davydov V.Ja.
  • Men'Shikova R.N.
  • Men'Shikova R.N.
  • Gubin Ju.G.
  • Katjushkin V.G.
 RU2096495C1
METHOD OF HEAT TREATMENT OF PIPES 1996
  • Galichenko E.N.
  • Medvedev A.P.
  • Tetjueva T.V.
  • Laptev V.A.
  • Degaj A.S.
  • Grigor'Ev A.G.
  • Davydov V.Ja.
  • Men'Shchikova R.N.
  • Gubin Ju.G.
  • Katjushkin V.G.
 RU2086670C1
METHOD OF PIPE MANUFACTURE 1997
  • Bodrov Ju.V.
  • Brizhan A.I.
  • Grekhov A.I.
  • Zhukova S.Ju.
  • Zhukov A.I.
  • Marchenko L.G.
  • Popovtsev Ju.A.
  • Shepelev A.V.
  • Tetjueva T.V.
  • Prokhorov N.N.
  • Galichenko E.N.
  • Medvedev A.P.
 RU2110588C1
METHOD OF HEAT TREATMENT OF ROLLED PRODUCTS MADE OF LOW-CARBON, LOW-ALLOYED STEEL 1999
  • Tishkov V.Ja.
  • Churjulin V.A.
  • D'Jakonova V.S.
  • Demidova A.A.
  • Popova T.N.
  • Kvasnikova O.O.
  • Rosljakova N.E.
  • Zikeev V.N.
  • Klypin B.A.
  • Kornjushchenkova Ju.V.
 RU2148660C1
METHOD OF PRODUCTION OF ROLLED STOCK 2000
  • Gurkalov P.I.
  • Moskalenko V.A.
  • Bagdasarov Ju.Eh.
  • Shafigin Z.K.
  • Stepashin A.M.
  • Tolstenko S.A.
 RU2156312C1
METHOD OF HEAT TREATMENT OF PIPES 1996
  • Brizhan A.I.
  • Grekhov A.I.
  • Zhukova S.Ju.
  • Marchenko L.G.
  • Popovtsev Ju.A.
  • Shepelev A.V.
  • Galichenko V.P.
  • Medvedev A.P.
  • Mukhin M.Ju.
  • Tetjueva T.V.
 RU2085596C1
METHOD OF THERMAL TREATMENT OF WELDED TUBES 2011
  • Belov Evgenij Viktorovich
  • Efimov Ivan Vasil'Evich
  • Pejganovich Nadezhda Valer'Evna
  • Silin Denis Anatol'Evich
 RU2484149C1
METHOD FOR PRODUCING ARTICLES FROM ZIRCONIUM ALLOYS 1996
  • Aktuganova E.N.
  • Zavodchikov S.Ju.
  • Kotrekhov V.A.
  • Lositskij A.F.
  • Shevnin Ju.P.
 RU2110600C1

RU 2 112 049 C1

Authors

Shulezhko A.F.

Shanilov V.A.

Pojarkov V.A.

Furman Ju.S.

Pogorelova I.G.

Tetjueva T.V.

Shevelev A.V.

Prokhorov N.N.

Galichenko E.N.

Medvedev A.P.

Semerikov K.A.

Dates

1998-05-27—Published

1997-03-12—Filed

read Similar patents