What are the main differences between automatic submerged arc welding and rod arc welding?
Automatic submerged arc welding is suitable for large current welding of 300-800A, and welding arc uses submerged arc welding flux to effectively protect molten pool. The bead forming is beautiful, tensile resistance is strong, welding defects are reduced, and deposition efficiency is high. Welding rod welding efficiency is low, welding current between 60-200A, welding dust is big, harmful to human body.
Automatic submerged arc welding is rolled into a circle, usually in the current voltage of 500A~700A in general 27~34 V according to different wire diameter is automatically fixed rail, and automatic wire and flux mechanism do not require high skills, general training ten hours can be operated.Electrode welding, you say is the hand welding, welding rod is about 50CM, generally speaking of the welder skills requirements are relatively high, you can see the basic level of welding machine, is the constant flow characteristics
Automatic submerged arc welding; the current is higher than the manual arc welding; the welding wire is thicker than the welding electrode; the speed is fast; the efficiency is high; the operation is easy; the pores are not easy to produce; the width of the weld bead and the depth of melting are high.For individual welder hand arc welding technical level change, high difficulty, low efficiency, especially for more than 20, more than 20 of the slab thickness, is not easy, single pass welding slag cleaning difficult, but cannot be compared with manual arc welding submerged arc welding in all positions
