FAQ

A: Cause analysis 1) The groove angle is not properly ground or the space is not even 2) The welding parameter is not proper. 3)Incorrect angle of approach Protective measures 1)Select proper groove angle and fit space 2)Improve fitting quality 3)Select proper welding parameter 4)Improve welding operator skills

A: Cause analysis 1) The welding environment is wet 2) The electrode is wet and not dried. 3) The welding current and energy is too big 4) The welding arc is too long Protective measures 1) Improve welding environment 2) The electrode should be stored properly and be dried according to the requirements. 3) Make feasible welding process

A: Cause analysis 1) Welding current is big and welding speed is slow 2) The space is too big and the blunt edge is too thin etc. Protective measures 1) Proper welding current and welding speed 2) Control the space

A: Cause analysis 1) Incorrect welding operation and angle of approach 2）Too big welding current and too long welding arc Protective measures 1) Improve welding operator skill 2) Select proper welding parameter

A: Cause analysis 1) The welding pause time is too short, which cause the the crater is not filled. 2) The welding current is too big while welding the thin plate. Protective measures 1) In manual arc welding, attention must be paid to the arc closing process. The electrode should stay at the molten pool for a short time, or make several circular movements to make enough electrode metal to fill the molten pool. 2) Choose correct welding current

A: Cause analysis 1) Incorrect welding parameter, ie,excessive amperage, too long arc length, too low speed 2) Wrong welding operation 3) Angle of electrode too inclined to the joint face and incorrect electrode angle of approach Protective measures 1) Select correct welding amperage and arc and keep the speed even 2) In fillet welding, the electrode should be at the right angle and maintain a certain arc length