TPT November 2011

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November 2011 53 ›
Technology Update
EZTM tube rolling plants designed for
greater flexibility in manufacturing
EZTM JSC has started the detailed
design of a new generation of tube-
rolling plants.
The principle of Efficiently
Fragmented Technological Process
(EFTP) forms the basis of the
project.
The essence of the EFTP principle is
that the certain technological process is
divided into smaller subprocesses which
areused(likeontheprincipleofconstructor
LEGO) for flexible developing of different
manufacturing processes depending
on market requirements to the finished
products.
The use of this principle at designing
of the tube-rolling plant allowed
getting three tube rolling technological
schemes through using one and the
same generally accepted contents of
the equipment.
Such decision allows providing the
production of small and large batches
of tubes of wide range of product sizes
and grades with minimum expenses for
resetting of equipment.
The 7-stand continuous mill of
new generation with MPM Quattro
technology will be used as an
elongator.
8-sided wall reduction is performed
on the long retained mandrel of MPM
Quattro mill (of the 3-high mill – 6-sided
wall reduction, of the classic 2-high
MPM mill – 4-sided one)
Such decision allowed:
• providing friction conditions at the
outer tube surface similar to three-high
scheme;
• reducing to minimum the friction
processes at the inner tube surface at
the mandrel extracting by implementing
the technology of increasing of tube
cross-section perimeter as compared
to mandrel section perimeter, similarly
to MPM mill technology (the use of
such technology in a three-high mill is
impossible);
• decreasing the transverse thickness
variation of the produced tubes (the
technology has the potential to reach
the thickness variation parameter up to
the value of ±4%).
The distinctive feature of the new
MPM Quattro technology is that it can
be applied for both building new tube-
rolling plants with continuous mill and
retrofitting of existing MPM mills.
EZTM JSC – Russia
Website:
T +31 321 38 66 77 | F +31 321 31 41 65 |
• AUTOMATIC PIPE
WELDING SYSTEMS AND
RELATED EQUIPMENT
• FROM 6MM AND UP
• INTERNAL/EXTERNAL
WELDING
PROCESSES:
GTAW
GMAW
FCAW
COMPANIES WHO
BELIEVED IN
a PaRTneRShIP
wITh US:
ROYAL DUTCH SHELL
KELLOGS BROWN AND ROOT, USA
NORSK HYDRO, NORWEGIA
HEEREMAC, THE NETHERLANDS
FMQ, SAUDI ARABIA
QUALITY INTERNATIONAL, UAE
FLUOR DANIEL SADA, USA
CCIC, QATAR
SUEDROHRBAU, SAUDI ARABIA
STORK MEC, BELGIUM
NACAP ASIA PACIFIC, THAILAND
EXXON MOBIL, USA
OILSERV, NIGERIA
GENERAL ELECTRIC, USA
TEKFEN INSAAT, TURKEY
MONTER STROJARSKE MONTAZE, CROATIA
GALFAR E&C, OMAN
ARAMCO SERVICES, SAUDI ARABIA
CANADOIL ASIA, THAILAND
VAM, MCE GROUP, AUSTRIA
OAO LUKOIL, RUSSIA
LARSEN & TOUBRO LTD, INDIA
NIS-NAFTAGAS, SERBIA
PETROJET, EGYPT
KEVIEPSZER KFT., HUNGARY
KVV ZRT., HUNGARY
PETROFAC, UAE
ENI-SNAM, SAUDI ARABIA
BIN QURAYA EST, SAUDI ARABIA
and many mORe...
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