Preparation and assembly of welding parts for all aluminum whole plate welding manufacturers: Before welding steel welding parts, all dirt, oil stains, oxide skin, and rust must be removed. For hot-rolled steel, the welding area should be first pickled, sandblasted, or cleaned with a grinding wheel to remove the oxide skin. Although uncleaned welded parts can be spot welded, it seriously reduces the service life of the electrodes, as well as reduces the production efficiency and quality of spot welding. For medium and low carbon steel with thin coating, direct welding can be applied.
1. Welding time for all aluminum whole plate welding manufacturers: When welding medium and low carbon steel, this welding machine can use strong standard welding method (instantaneous electrification) or weak standard welding method (long-term electrification). Strong standard welding method should be adopted in mass production, which can improve production efficiency, reduce electrical energy consumption, and reduce workpiece deformation.
2. Welding current of all aluminum whole plate welding manufacturer: The welding current is determined by the size, thickness, and contact surface condition of the welded part. Usually, the higher the conductivity of a metal, the greater the electrode pressure, and the shorter the welding time should be. At this point, the required current density also increases.
3. Electrode pressure: The purpose of applying pressure to the solder joint by the electrode is to reduce the contact resistance at the solder joint and ensure the pressure required for the formation of the solder joint.
The process of all aluminum whole plate welding manufacturers is to turn on cooling water; Clean the surface of the welded part, assemble it accurately, and send it between the upper and lower electrodes. Apply pressure to ensure good contact; Electrification causes the contact surface of two workpieces to be heated, resulting in local melting and the formation of a molten nucleus; Maintain pressure after power outage to allow the molten core to cool and solidify under pressure, forming solder joints; Remove pressure and remove the workpiece. Welding parameters such as welding current, electrode pressure, energization time, and electrode working surface size have a significant impact on welding quality.
When using a welding machine, the cleaned flat steel bars are stacked together between two electrodes, and the foot pedal is pressed to make the intersection point of the two steel bars tightly contact. At the same time, the circuit breaker is also in contact, and the power is turned on to generate a large amount of resistance heat at the intersection point of the steel bars in a short period of time. The steel bars are quickly heated to the melting point and are in a molten state. Release the pedal, and the circuit breaker will cut off the current as the lever descends. Under pressure, the melted steel bars will cool and condense into welding points.
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