Alstom India builds up weld repair experience

Figure 3. Preheat set-up and side rings/flux retaining plates attached to the parted off disc head



  • NPC_HP_Figure10
  • Figure 6. Post-weld heat treatment of weld built up disc head
  • Figure 7. Proof machined and ND tested disc head
  • Figure 5. Completed weld build up with enough weld metal to obtain a clean disc head
  • Figure 4. SAW welding in progress under the guidance of disc head welding expect
  • Figure 3. Preheat set-up and side rings/flux retaining plates attached to the parted off disc head
  • Figure 2. Rotor prepared for weld buildup
  • Figure 1. Original disc head cut away in preparation for weldability test
  • Figure 9. The rotor fully refurbished and ready for dispatch
  • Figure 8. Reblading of the modified pinned root disc head
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