What are the precautions of aluminum welding?
3 selection of cerium tungsten rod tungsten bar, argon blunt quality and not less than 99.96%, and the moisture content should not exceed 50mg / m3. 4 Ambient temperature is not lower than 5 ℃, otherwise it should be preheated to 100 ~ 200 ℃ before welding, relative humidity control.
2 Pieces of wire and cleaning, on both sides of the break in the wire and 50mm range surface clean with acetone, with stainless steel wire brush to the surface oxide film, exposing the metal luster, clean up good break must be welded within 2 hours, cleared wire into the unused cylinder, must be used within 8 hours or reprocessed.
Aluminum welding
1 welding characteristics: aluminum and aluminum alloy having a high thermal conductivity and heat capacity, linear expansion coefficient, low melting point and high temperature strength and other characteristics of small, welding difficult, should take certain measures in order to ensure the quality of welding.
