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2 282 091

(13)

(51)

IPC

F16L9/02(2006-01-01)

(21) (22)

Application

2003115168/06, 2003-05-23

(24)

Start date

2003-05-23

(22)

Actual filing date

2003-05-23

(45)

Published

2006-08-20

(72)

Inventor

Baranov Vladimir NikitichVinogradov Jurij Vasil'EvichBednjakov Vladimir VladimirovichKhomenko Vladimir IvanovichPapkov Oleg SergeevichBaranov Boris StepanovichAkhmedshin Rauf IslamovichNovitskij Aleksandr Fedorovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Zavod Tjazhelogo Mashinostroenija"

SECTIONAL PIPE FOR ERECTION OF PIPE LINES AND METHOD OF MANUFACTURE OF SUCH PIPE Russian patent published in 2006 - IPC F16L9/02

Abstract RU 2282091 C2

FIELD: erection of pipe lines.

SUBSTANCE: proposed sectional pipe consists of at least three metal parts interconnected by means of circumferential welds; center part is made from grey cast iron or cast iron with globular graphite; length of each part is 100-250 mm. Assembly of sectional pipe includes connecting at least three metal parts together by means of circumferential welding; circumferential welds are made by electric contact welding at continuous fusion at exponential curve coefficient "K" equal to 0.7-0.9.

EFFECT: improved service characteristics; low cost of erection and operation.

7 cl, 1 dwg

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RU 2 282 091 C2

Authors

Baranov Vladimir Nikitich

Vinogradov Jurij Vasil'Evich

Bednjakov Vladimir Vladimirovich

Khomenko Vladimir Ivanovich

Papkov Oleg Sergeevich

Baranov Boris Stepanovich

Akhmedshin Rauf Islamovich

Novitskij Aleksandr Fedorovich

Dates

2006-08-20—Published

2003-05-23—Filed