Several measures adopted by welding aluminum high-frequency power ① higher frequency, for 100KW device uses 600 ~ 700KHz 6082 alloy aluminum auto, 60KW equipment using 700 ~ 800KHz. ② tube anode power supply uses 12-phase rectifier 6082 alloy aluminum factory, and the installation of a smoothing filter, the use of SCR voltage regulator, aluminum alloy 6082 should make it work in smaller conduction angle state to reduce rectified ripple factor. ③ higher output power, so that a higher welding speed tubes. ④ reasonable oscillation circuit 6082 alloy aluminum supplier, should be done to facilitate load regulation. Physical properties of aluminum and stainless steel pipes and stainless steel tube aluminum high frequency induction welding biggest problem is the impact oxides. 1) aluminum easily oxidized to Al2O3, melting point up to 2050 ℃, and the melting point of aluminum is 658 ℃, the welding, the oxide film prevents the base metal melting fused together, prone to incomplete penetration defects. 2) is similar to aluminum, as stainless steel w (Cr)> 12%, the chromium preferentially combines with oxygen in the surface layer of the base metal oxide Cr2O3 dense than iron, melting point up to 2265 ℃, and the melting point of chromium is 1857 ℃, there will be similar problems.