ArcelorMittal unveils world-first vacuum coating technology for automotive steels
The JVD line coats a moving strip of steel in a vacuum chamber, vaporizing zinc onto the steel at high speed. Advanced high strength steels (AHSS) for automotive applications are coated with Jetgal®, a coating specifically developed for this application.
The JVD chamber at ArcelorMittal Liège
The JVD technology ensures:
Jetgal® can be applied to one or both sides of the metal, and different thicknesses can be applied on each side. The JVD line can also coat a variety of substrates, regardless of their chemical composition. ArcelorMittal has also future-proofed the line to ensure new AHSS steels of the future can be coated.
Implementation of the JVD line has required major investment at ArcelorMittal Liège
Orders have been placed by some, while other OEMs are still in the testing phase. Demand is expected to be strong.
A key benefit of the JVD process is its significantly lower environmental footprint. A life cycle assessment (LCA) was conducted to evaluate the environmental impact of the entire JVD process including the coating, the use phase of the coated products, and the management of waste products.
The LCA showed JVD achieved a higher yield and lower energy consumption than other coating techniques. This gives JVD the lowest global warming potential of any industrialised steel coating technology available today.
The arrival of JVD technology adds to ArcelorMittal’s unique range of metallic coatings for cold forming automotive steels. Coatings available include Alusi®, Extragal®, Galfan, Ultragal®, Zagnelis® Surface and Zagnelis® Protect, and now Jetgal®.