This method reduces the resistivity of forged aluminum LD2CS welded joints from 6.7×10^-7 Ω·m in fusion welding to about 8.1×10^-8 Ω·m, and increases the tensile strength from 186 MPa to about 290 MPa, without affecting the silver plating during welding. Production efficiency is 10 to 50 times higher than MIG welding. It uses the momentum or thermal coupling generated by the instantaneous precise interweaving of rotating and moving workpieces as the welding energy, so no other energy sources or auxiliary materials are consumed, there is no pollution, making it a high-quality, efficient, energy-saving, and environmentally friendly industrial technology. 

Parameters for solid-state welding of high-voltage transmission and distribution conductive rods are: friction speed: 950 rpm to 1150 rpm, friction pressure: 16 MPa to 25 MPa, friction time: 6 s to 10 s, upsetting pressure: 75 MPa to 95 MPa, holding time: 4 s to 8 s. On the friction welding machine, clamp the joint or conductor of the conductive rod in the rotating fixture, clamp the tube body in the moving fixture, and perform the manufacturing operation through PLC.

Common faults and abnormal phenomena in conductive rods during power supply and operation

Common faults and abnormalities of conductive rods during power supply and operation include: (1) After a power outage, when power is restored or during trial supply, abnormal voltage is often observed, such as two phases high and one phase low, or zero indication; newly commissioned transformers may have high voltage on all three phases, causing some electrical equipment to burn out due to overvoltage; (2) High-voltage fuses blown prevent power supply; (3) Transformers can’t supply power after thunderstorms; (4) Abnormal noises, such as squeaking or crackling sounds, or during operation, sounds like frogs croaking; (5) High-voltage terminals burned, high-voltage bushings with severe damage and flashover traces; (6) Transformer temperature abnormally rises continuously under normal cooling; (7) Excessive oil color changes, carbon particles appear in the oil; (8) Roaring noises, oil spraying from safety vents and oil tanks, deformation of oil tanks and heat dissipation pipes, oil leakage, or seepage.