TPT September 2012

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Technology News
56 September 2012
Normalising pipe weld seams
EFD Induction has unveiled an
innovative control system for normalising
weld seams to API standards. According
to Per Ødesneltvedt of EFD Induction’s
research and development centre in
Norway, the new system provides three
valuable functions. “The first is ultra-
accurate power control and optimised
power inputs – essential when working
with narrow tolerances. The system also
supervises a power injection function
for quick power ramp-up, which boosts
productivity by minimising scrap.”
The second main function is automatic
coil positioning and control, which
ensures that the coils track the seam.
“With orbital tracking of the seam,” said
Mr Ødesneltvedt, “the system can move
coils to plus or minus 15°.”
The system also handles unwanted
movements of the pipe: “Not only can
the seam deviate, but the pipe itself
changes position. That’s why our system
has a centre-line offset compensation
function, to ensure the coils are always
in the right position.”
The third function covers safety,
quality and communication features.
The system also collects quality control
data for each batch of pipe normalised.
Quality control is enhanced by defect
detection and quick coil release features.
EFD Induction – Norway
Website:
Straightening machine
with ten rolls
CARTACCI Ltd has recently acquired
important contracts in major markets
including the USA, Brazil and India
without neglecting the Italian market.
For the USA market it has built one
well tested straightening machine
model RDT10V3UP with ten rolls and
completely automatic setting. Placed
in a moulding tube line it will process
API tubes of different diameters range
from 2" to 7". With this type of product
Cartacci has acquired considerable
experience during the last few years.
The system for rapid and automatic
setting (machine set system), based on
a perfect synchronisation between the
mechanics and electronics, guarantees a
high optimisation of production changes,
essential for mills with high productivity
such as this line.
For the Brazilian market, Cartacci
is building a big line for drawn tubes
production, which is characterised by
the wide range of processed tubes with
diameters from 2" to 9". The equipment
is composed by one drawing bench of
150 tons, one automatic straightening
machine with 10 rolls mod. RDT10V3/4
directly connected with multiple cutting
line. The whole line ranks among the
most advanced lines that are currently
used in the production of drawn tubes
in Brazil.
Cartacci is also present on the Indian
market with the installation of No. 3
drawing benches and No. 2 straightening
machines (all from the Cartacci brand)
that, after not being used by one Italian
customer following the renewal of all
machinery, have found a new use on
the plant of an important Indian tube
producing company, reflecting the
reliability of Cartacci machinery even
more than 30 years after their initial
installation.
Remaining on the Italian market,
Cartacci has recently started a new
complete line for drawn tubes with
diameters ranging from 1.5" to 5": the
line is composed by one straightening
machine mod. RDT10V2 with ten
rolls and completely automatic
setting, one cutting line with multiple
cut by five heads (for the maximum
versatility of cuts setting) and by one
packaging machine mod. IMPC130
with completely automatic setting:
inserting the characteristics of wanted
bundle’s form, within a few seconds the
machine reaches the set-up needed,
without requiring the operator to set the
long manual operations. Once more,
evidence of technical development
and constantly improving of the quality,
Cartacci is placed on a high technological
quality level even in design of packaging
machinery.
Cartacci Srl – Italy
Fax: +39 035 290514
Email:
Website:
Tubes, profiles and metal forming
STAR Tecnologia is a Brazilian company
with a focus on tubes and profiles,
and service centres specialising in
the processing of carbon steel coils,
stainless steel and non-ferrous, in its
technical and operational needs to
manufacture products with quality suited
to their applications.
The company has a modern plant
equipped with all the engineering
resources applied to full technical
management of designandmanufacture.
Star Tecnologia manufactures cutting
and rolls used in metal forming, with
customers in Brazil and Latin America.
The company provides complete
systems for removal of weld bead
inner tubes. Removal tools work with
adjustable air pressure assisted by a
booster of compressed air.
Star Tecnologia Ltda – Brazil
Email:
Website:
The new control system