In the German town of Velbert and the French town of Saint-Avold are two facilities that will now deliver long billets to their two owners: Gränges and the German aluminum company Erbslöh. These facilities have used spray-forming technology for aluminum right here, in the heart of Northern Europe’s industrial region, for more than 20 years.
Spray-forming is a process in which a molten metal alloy is atomized (dissolved) with nitrogen gas into small round drops placed at high speed in a semisolid state on a rotating substrate to build up a billet.
Gränges views its investment of SEK 40 million in the two production facilities as a strategic initiative for the future.
“There aren’t many production facilities of this type in the world and this initiative will ensure that we have the skills and material supply for the next generation of materials for heat exchangers,” says Stefan Wass, head of product innovation in Finspång and one of Gränges’ three representatives on Getek’s board of directors.
“Expertise in spray forming technology is extremely high in SaintAvold and Velbert,” he adds.
In the long term, the Saint-Avold facility will have the stronger link to Gränges. Saint-Avold will provide the Group with spray-formed Trillium billets that are extruded and frictionwelded to welding plates for further rolling.