laser welding

Austrian collector manufacturer Tisun GmbH started operating a new type of absorber production machine at the beginning of November 2011. Developed and delivered by Austrian machine supplier DTEC GmbH, the special feature of the machine is its ability to bend and laser-weld parts in a single production step. “We have patented the three-dimensional head which bends, forms and welds the piping to the absorber plate,” explains DTEC’s Managing Director, Michael Dietl. The photo shows the multi-functional laser head with its tools installed in the factory.
Photo: Tisun

Next April, a laser welding machine from the Austrian machinery supplier Dtec will come into operation in the Viessmann Factory in Falquemont, France.
Photo: Dtec

In mid-November, Alanod-Solar Inc. and US collector manufacturer Heliodyne signed a framework agreement stipulating the payment of royalties for laser-welded collectors sold in the US. Photo: Vaillant

A modern Turkish collector factory: Baymak purchased a laser-welding machine as part of the new collector production unit at Istanbul. Photo: Baymak

Shock, deformation, solidness and corrosion tests of laser-welded absorbers are all described in the “mirotherm absorber fact book”. This book can serve as a best practice resource for testing standards of new absorber and collector panels in the sector. Photo: Alanod

Chinese collector manufacturers have recently discovered the advantages of laser welding for the production of absorber sheets. Several flat plate collector manufacturers are now working on this technology. Hailin Solar is the first to offer laser-welded collectors.

Laser welding machine: a popular joining technique between absorber sheet and pipe Photo: Sunlaser Consulting GmbH

Laser welding machine for absorber sheets: A patent in the United States could slowdown the development of this technology.
Photo: Sunlaser Consulting

Crowding at the start button: The new collector production unit of Sun Master in Upper Austria opened on 22 January. Photo: Sun Master