So be careful not to burn too high when welding. When the welding is found to be dry or black, M5 1-F can be dipped in the welding place with the M51welding wire to play the role of welding assistance.
Precautions for welding: preheat the sample with medium fire until the flux turns yellow. When it is slightly boiling, it means that the temperature has reached about 179 degrees (the flux can indicate the temperature, prevent oxidation and enhance the fluidity of the thin layer). When heating the substrate, do not burn the flux with fire.
Extended data
Welding method of aluminum alloy
1, TIG welding: It is mainly used for aluminum alloy and is a good welding method. However, TIG welding equipment is complex and not suitable for open-air operation.
2. Resistance spot welding and seam welding: used for welding aluminum alloy sheets with thickness less than 5 mm. The welding equipment is complex, the welding current is high, and the productivity is high, which is suitable for mass production of parts.
3. pulsed argon arc welding: it can improve the stability in the welding process and adjust the parameters to control the arc power and weld formation. Suitable for thin plate, all-position welding and welding of forged aluminum and superhard aluminum with strong thermal sensitivity.
4. Friction stir welding: mainly used in the field of light metal structures such as aluminum alloy and magnesium alloy. The welding temperature is lower than the melting point of the material, which can avoid cracks, pores and other defects caused by fusion welding.
Baidu encyclopedia-copper and aluminum welding
Baidu encyclopedia-aluminium alloy welding