1results about How to "Reduce equipment weight" patented technology

This invention relates to the field of welding materials technology, and particularly to a high-performance aluminum-lithium alloy flux-cored welding wire and its preparation method. The high-performance aluminum-lithium alloy flux-cored welding wire comprises: an aluminum-based metal strip outer sheath; and flux powder filled within the outer sheath. The flux powder includes deoxidizing components, alloy components, arc-stabilizing components, slag-forming components, and binding components. The alloy components of the aluminum-lithium alloy flux-cored welding wire, by mass percentage, include: Cu: 3.7%-4.3%, Li: 0.8%-1.5%, Mg: 0.25%-1%, Zr: 0.1%-0.16%, with the balance being Al and unavoidable impurities. The burn-off rate of active elements is significantly reduced, and the composition control accuracy reaches ±0.05%. The flux structure encapsulates highly active elements such as Li, Mg, and Zr in powder form within the aluminum-based outer sheath, avoiding high-temperature volatilization and oxidation in traditional smelting processes. These elements are released only during welding, achieving precise composition control and enabling the stable preparation of aluminum-lithium alloy welding wires with high Li content (2%-3%).