CASTWELD NiFeB

Heating: Large castings can be heated slowly to 100-300°C. After welding, cool slowly under mineral blankets.

To remove liquid from the cast iron, the material should be heated to the appropriate temperature for the specific grade before welding.

When welding pearlite-structured cast iron, it is recommended to preheat the material to approximately 200°C.

Recommendations:

• Clean the material thoroughly before welding. Remove all impurities. Wash all cracks with penetrol.
• Weld slowly with a bead length of 25-50 mm.
• Weld with the shortest possible arc and the lowest possible amperage.
• Create the next piece of stitching when the material can be touched with your hand.
• Remove any slag, hammer each piece of weld.
• Use the correct welding sequence.
• Subsequent arc strikes always on the weld metal, never on the bonded material.