Perfect Welding

The current page does not exist in the target language.

Do you want to change the language and go to the home page or do you want to stay on the current page?

Change Language

Perfect Welding

Fronius welding technology produces the best results under the most extreme conditions

VAM Anlagentechnik GmbH, Austria

Bilfinger VAM Anlagentechnik GmbH, which is headquartered in Wels, is a subsidiary of the Bilfinger Berger Industrial Service Group. For decades it has been one of the leading companies in industrial plant, pipeline, equipment, container and tank construction. With a total of twelve companies and around 8,000 employees, the group is represented in 25 countries.
VAM, Fronius, welding, TPS/i

FIND THE RIGHT CONTACT

Fronius International GmbH

fnyrf@sebavhf.pbz Other ways to contact us


Peter Krenmayr, Head of Welding and Testing Engineering at Bilfinger VAM Anlagentechnik GmbH

“For us, the focus is always on the quality of the weld seam. This also applies to one-sided root passes, which are an important part of the process in the production of the pressure shaft lining.”
VAM, Peter Krenmayr, Schweißen

WELDING CHALLENGE


Building a pumped-storage power plant poses a huge challenge, as the majority of the construction work takes place inside the mountain. To join the reservoir to the cavern located lower down, a five-kilometre underground steel pipe system was installed in a power plant in Carinthia. This consists of a headrace tunnel and a pressure shaft with an incline of 42 degrees. The cramped and difficult underground conditions place particularly high demands on the technology. 


“The TPS/i in combination with LSC Root is perfectly suited to one-sided root pass welding in a downward position and is easy to work with.” Peter Krenmayr, head of the Welding and Testing Engineering business division at Bilfinger VAM Anlagentechnik GmbH. 

SOLUTION


To complete the shaft, VAM Anlagentechnik used 3,963 tonnes of steel in the construction of the pressure shaft lining and the associated system components. For the first time in Europe, thermomechanical steel was used – this is inexpensive and easy to weld. To produce the best welding results, VAM deployed the latest TPS/i MIG/MAG power source from Fronius and the stable LSC Root dip transfer arc. Thanks to the high arc pressure and optimal deposition rate, welding can be performed in a downward direction and more quickly. The LSC Root ensures excellent root formation and gap-bridging ability, reduces incomplete fusion to a minimum and produces perfect weld seams. VAM was also able to use the TPS/i as a universal MIG/MAG power source for filling and final runs. This not only reduced the number of devices required, but also simplified the welding operations in the cramped pressure shaft.


We think you are located in a different country

The country currently selected is Fronius International. Would you like to stay on this page or do you want to switch to the local website?