Flux-cored strip special for depositing copper on steel substrate

• Main Authors: WU TONGLI, ZHOU QI, LI CONG, YANG ZIWEI, WANG KEHONG, ZHANG XIAOYONG, PENG YONG
• Format: Patent
• Language: Chinese; English
• Published: 23.07.2024
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The invention relates to a flux-cored strip special for depositing copper on a steel substrate. The flux-cored strip comprises a rectangular copper alloy shell of a hollow structure and an internal protective agent flux core. The copper alloy welding wire comprises a flux core and a copper alloy shell wrapping the flux core, the cross section of the copper alloy shell is rectangular, and the copper alloy welding wire comprises, by mass, 0.05%-0.5% of Pb, 0.01%-0.5% of MoS2, 0.01%-0.5% of Nd, 0.01%-0.1% of C, 1%-2% of In and the balance Cu. The chemical components of the flux core comprise, by mass, 10%-12% of borax, 5% of ZnCl2 and the balance hydrochloric acid wrapped by a corrosion inhibitor carboxymethyl cellulose. After being formed, the copper alloy flux-cored strip containing Pb and In has good lubricating property, excellent bonding strength with a steel matrix and good forming performance. Copper alloy deposition material increase is conducted on a steel substrate through the strip, high-efficiency an