The MHI M701F3 gas turbine first stage rotor, turbine first stage stator, combustor transition section and combustor seal repair were completed and delivered for use.
Turbine Stage 1 Moving Blade/Bucket
Failure mode : Bucket tip, edge plate crack, ablation, bucket coating peeling off
Refurbishment method： Laser cladding, fusion welding, recovery heat treatment and thermal spraying
Status： The customer has passed the acceptance and has been delivered.
Turbine Stage 1 Stationary Blade/Bucket
Failure mode：Bucket tip, edge plate crack, ablation, bucket coating peeling off
Refurbishment method： Powder metallurgy, fusion welding, recovery heat treatment, thermal spraying
Status： Self-repairing blades are installed and used for the first time in China, with cumulative operation exceeding 16000EOH. After decomposition inspection, the coating does not peel off. However, for OEM new products installed at the same time, the surface coating is damaged, the matrix is ablated, and the reliability of factory self-repairing parts exceeds that of OEM new products.
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