Copper-aluminum joint preparation process and preparation device

• Main Authors: SHANG GUANGMING, ZHANG YONGJIANG
• Format: Patent
• Language: Chinese; English
• Published: 12.09.2023
• Subjects: COMBINED OPERATIONS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The invention discloses a copper-aluminum joint preparation process which comprises the following steps: hole shrinkage: carrying out hole shrinkage treatment and insertion on one end to be welded of a copper pipe fitting, inserting the copper pipe subjected to hole shrinkage into an aluminum pipe, abutting, placing the copper-aluminum pipe fitting formed after insertion into welding equipment, abutting the copper pipe fitting and the aluminum pipe through an arranged abutting assembly, heating, and welding. The connection position between the copper pipe fitting and the aluminum pipe fitting is subjected to heating treatment and extrusion, the copper pipe fitting and the aluminum pipe fitting abut against each other and are welded through an extrusion mechanism in the welding equipment, and the connection position between the copper pipe fitting and the aluminum pipe is welded through a welding mechanism on the welding equipment. According to the copper-aluminum connector preparation technology and device, d