Resistance brazing method for large-area overlapping of copper or copper alloy thick plates

• Main Authors: GU DONGLIN, LIU QINGFA, ZHOU DISHENG, GUI LONG, GUO YUNQIANG, CHE SANHONG
• Format: Patent
• Language: Chinese; English
• Published: 06.12.2019
• 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 provides a resistance brazing method for large-area overlapping of copper or copper alloy thick plates. The first copper or copper alloy thick plate and the second copper or copper alloythick plate are welded through a resistance welding machine. The resistance welding machine comprises a first electrode arm and a second electrode arm, wherein a first electrode is arranged on the face, opposite to the second electrode arm, of the first electrode arm; and a second electrode is arranged on the face, opposite to the first electrode arm, of the second electrode arm. The method specifically comprises the steps: arranging foil-like brazing filler metal between the first copper or copper alloy thick plate and the second copper or copper alloy thick plate in advance, arranging the first copper or copper alloy thick plate, the foil-like brazing filler metal and the second copper or copper alloy thick plate between the first electrode and the second electrode of the resistance welding machine, and startin