97 / 116
W
elding
T
echnology
www.read-tpt.comM
ay
2010
95
›
PIPE welding facilities from Weldec
GmbH are developed for longitudinal and
circumferential submerged-arc welding
(SAW), inside and outside. Weldec has
concentrated its efforts on the main
demands of the industry: mechanisation,
Submerged arc-welding
technology in the pipe and
pressure vessel industry
automation and a high efficiency of the SAW
process.
Starting with the analysis of the client’s
requirements, the welding stand, the
welding head and the pipe driving/turning
device are individually designed to provide
the best technical and economical solution.
Based on hydraulic and electro-mechanical
functions, the welding process can be started
very quickly. The CNC-controlled multi-wire
technique ensures a high melting deposit
rate, especially at heavy wall thicknesses.
The Weldec product range of welding
facilities covers equipment for SAW
longitudinal and circumferential welding and
U-groove back milling; SAW plate welding;
MAG pre-welding; RES overlay welding;
LaserHybrid longitudinal welding; and
PlasmaHybrid longitudinal welding.
Weldec GmbH
– Germany
Fax: +49 2753 50703 30
Email:
info@weldec.deWebsite:
www.weldec.deSAW technology from Weldec
Solid-state
high frequency
welder
EMMEDI is the tube and pipe division of
SAET Group, and specialises in induction
welding and annealing processes. The
company’s MosWeld is a solid-state high
frequency welder, available in power sizes
from 100 to 1,000kWwith output frequencies
ranging from 150 to 450kHz.
MosWeld, with a very compact and
robust design, uses a modular MOSFET-
based inverter with very high efficiency.
Easy maintenance and long-lasting
performance are granted by the use of
standard power components not subject
to obsolescence, together with a special
remote troubleshooting, process follow-up
and simple inductor coils design.
Emmedi
– Italy
Fax: +39 011 9974328
Email:
info@saetgroup.comWebsite:
www.saetgroup.comIDEAL-WERK is a manufacturer of coil
joining equipment, and offers various
models of strip welding machine for the
coil joining operation. The company’s LBS
043/080 is made for TIG welding of steel
and non-ferrous strip up to 80mm wide. The
machine has a pneumatic double cutting
shear and a pneumatic clamping device,
together with adjustable automatic torch
drive. It offers ease of operation for the coil
joining operation in front of tube and roll
forming lines.
In addition to other strip welding
machines and flash butt welders for tubular
components, the German manufacturer
produces a laser welding machine for coil
joining: Ideal type LAS 300. This machine
can be integrated into continuous production
lines for steel strip, and is designed to weld
steel strip from 600 to 2,200mm wide and
from 0.4 to 3mm thick.
The laser coil joining machine produces
a tight weld seam of deep-drawing quality,
eliminating nearly all damage that might
occur when coiling up the steel strip.
Strip welding machines
for coil joining
The laser welder is operated by a CO
2
slab laser with an output of up to 8,000W.
The laser beam is used for rectangular
cutting and welding of the strip ends by mirror
optic, and it is possible to join different strip
widths and thicknesses together at one time.
For carbon steel, Ideal also offers also an
annealing device, and a weld seam control
system is also available as an option. Upon
request, the machine can be equipped with
pinch rollers for lengthwise positioning of
the in- and outgoing strip ends, making it
possible to position the strip ends of the
coils precisely in the clamping device of the
welding machine.
The LAS 300 laser welder produces
weld seams of high quality and surface
finish. The weld joints may remain in the
product, and they show a thin heating zone
and possess high solidity.
Ideal-Werk
– Germany
Fax: +49 2941 206 169
Email:
info@ideal-werk.comWebsite:
www.ideal-werk.com