TPT July 2013

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Technology News
46 July 2013
New project for straightening
line for pipes up to 340mm
CARTACCI Srl, an Italian company,
keeps on searching for the new technical
solutions for new projects of finishing
lines for tubes.
The experience obtained in almost
50 years is the important basis for
the complete innovation of equipment
design that meets the most demanding
requirements of the market. Recently
Cartacci has been commissioned
by Borusan Mannesmann Group for
technological development of a new
straightening line project for pipes of
maximum diameter 340mm destined
for the American market. Cartacci can
boast a wide knowledge in the
construction of straightening machines
designed to meet all API standards: from
5D (for drill pipes) to 5CT (for tubing and
casing) and 5L (for line pipes).
The machine will be designed with
particularly short wheelbase and with
large rolls surface. This new general
geometry brings particularly important
advantages in terms of quality of
straightening, particularly on the pipe
ends.
Cartacci Srl – Italy
Website:
Contactless straightness
measurement for rod and
steel pipes
LASER measuring technology firm
LAP has developed a new system
for measuring the straightness of
pipes and steel rod contactlessly. The
Straightcheck contactless measuring
system by LAP provides pipe and
rod manufacturers with potential for
online quality assurance – without time
consuming manual measurement.
Many pipe and rod steel manufacturers
are repeatedly confronted with the
same problem. Does the straightened
pipe satisfy the customer’s quality
standards? Straightness is a significant
criterion. If this is not satisfied, the rod
steel or pipes cannot be sold. LAP has
found a way around this problem with
the Straightcheck laser measurement
system. This dispenses with time
consuming and complex checks using a
straight edge.
The LAP solution can be integrated
into the manufacturing process directly.
Existing systems do not need to be
adapted. “The METIS sensors in the
Straightcheck system measure the
straightness of steel products,” explains
Frank Lohmann, who works in sales
and distribution for the steel industry at
LAP. “During the straightening process
the pipe or rod turns at roughly 400
revolutions per minute on its longitudinal
axis. The only logical solution therefore
was to use our sensors to measure the
straightness. We obtain this information
by means of synchronised real time
measurement. For this measurement
to be possible online, all sensors must
be fully sychronised when the scan is
in progress. Straightcheck software
provides data directly after the first
straightening operation whether or
not the product meets specifications.
This also assures the production staff
of the product as it passes into other
manufacturing processes. In general,
no changes to existing production lines
are required.”
The laser measuring system can
determine the straightness of extremely
long pipes and rod steel, even for
lengths up to 30 metres. To do so, the
measuring range, ie the overall length of
the products, is subdivided into one, two
or three metre long segments. These
are then measured separately in order
to determine the straightness of the
individual sections of the workpiece.
LAP GmbH Laser Applikationen –
Germany
Email:
Website:
The Straightcheck
contactless measuring
system