STORAGE PACKET FOR WELDING FLUX COMPRISING A SANDWICH STRUCTURE OF THE POLYMER/METAL FILM TYPE METHOD FOR STORAGE OF A WELDING FLUX IN SUCH A PACKET AND METHOD FOR ARC WELDING USING A WELDING FLUX STORED IN SUCH A PACKET

摘要

The bag (1) comprises an aluminum foil (2) with a thickness of 5-25 mu m and the polymer layer covers the surface of the foil. The polymers (3a, 3b) are located towards the inner and outer side of the bag. The bag is sealed along a line/zone of closing, after introducing the flow (5) and the capacity of the bag is 0.005-2m 3. The structure includes an internal polyethylene layer, aluminum foil, and polyamide layer and external polyethylene layer. The foil and the polymer layers are superimposed in a sandwich type structure of polymer-aluminum foil-polymer in the bag. An independent claim is included for a process of welding arc.