Repair welding of cast irons

  • Grind the area to be welded so that the casting skin is removed.
  • Clean the area free of all contaminants by degreasing, burning, brushing, grinding etc.
  • If a crack has to be repaired drill crack arrester holes at the end of the cracks. Remove the crack completely by gouging, grinding etc. and ensure complete removal by a dye penetrant test.
  • Deposit the welds in small lengths of 50 mm at a time.
  • Peen the welds.
  • After welding allow the casting to cool slowly.
  • These are the general steps in cast iron welding. However, the procedure may have to be modified depending on the job. For complete welding procedure details contact our technical service personnel.