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Press Release
Constantly manual
Stable arc with MMA welding
An ideal characteristic leads to perfect welding results. With MMA welding,
welders can achieve such results with the help of resonant intelligence. Even in
adverse conditions, the machine technology patented for Fronius always ensures a
perfect and constant arc. Moreover, it provides the welder with a considerable
power reserve. This prevents the arc from breaking for example. Because the
“technically controlled inner life” of a welding system with resonant
intelligence is very complex, this technology was previously only available for
single-phase TransPocket 1500. Now Fronius developers have it solved, and have
equipped two three-phase systems with this technology and its benefits: the new
TransPocket 2500 and 3500.
With conventional MMA welding machines, fluctuations in the mains voltage and
mains cables of different lengths have a negative effect on the output power.
The same applies to changes in the arc length. Fluctuations in the current then
lead to changes in the arc, and in turn to poor quality welding results. Such
undesirable side effects are not an issue with resonant intelligence, even with
cable lengths of 100 m. So that sticking is avoided if there is a short circuit,
the control briefly raises the current. If the electrode threatens to sink into
the weld pool, the increased current prevents the weld pool from solidifying.
This practically prevents the rod electrode from "sticking". With all
TransPockets, “just-in-time” control of the power source generates a gently
burning arc. The welder can therefore also process cellulose electrodes up to 5
mm in diameter in vertical-down seam position. This is barely possible with most
conventional welding machines.
The prerequisite for resonant intelligence is the resonance inverter developed
by Fronius. It generates an interaction between welding transformer and
capacitor. In addition to the capacitors, the transformer also takes on the role
of energy buffer. Resonant here denotes a particular condition: Transformer and
capacitors are matched in such a way that they reboot each other. The cleverly
devised combination of resonance and buffer function creates power reserves that
are on hand if required by the arc.
The welding current range of the three-phase TransPocket 2500 reaches 250 A and
that of the TransPocket 3500 to 350 A. Extra functions such as SoftStart,
HotStart and Anti Stick complete the positive weld properties and make for added
convenience when working. Equally worth mentioning is the extremely robust
housing with integral handle. The machines’ low weights (12.5 kg and 18 kg)
mean they are ideal for portable use.
Number of characters approx. : 2.690
With a workforce of 1600,Fronius achieved a turnover of approx. 200 million euro
in 2005. The family-owned company ranks as an international leader in arc
welding technology in all sectors of metalworking. Fronius offers its customers
manual to fully automated welding systems for high-quality, cost-effective
processes. Users are supported by 10 subsidiaries and 82 sales and service
partners worldwide. In addition to welding technology, the company’s other
divisions are solar electronics and battery charging systems
Photos:
1: The single-phase and three-phase TransPocket welding systems provide high
power reserves for rod electrode and TIG welding work, even for portable use.
2: The resonance inverter generates an ideal characteristic with a high voltage
reserve for optimised weld properties under all conditions.
This press release and pictures can be downloaded from
http://www.fronius.com/press.
Please send an author's copy to the international contact person:
Fronius International GmbH, Marketing & Communications,
Ms. MMag. Matejka Marketa, Günter-Fronius-Straße 1, A-4600 Wels-Thalheim,
Tel. +43(0)7242/241 2590, Fax: +43(0)7242/241 2670,
E-Mail: [email protected]