Characterization of Consistent Aluminium diffusion layer over thread profile (flank, crest, and root) on the threaded specimen is maintained at 60 –150 μm, Surface finish less than 1.6 μm and hardness at 300 –320 BHN.
Purity, Particle size, Homogeneity of the aluminizing mixture and Hermetic sealing solutions
Establishment of Aluminization cycles.
Work piece accuracies:
Level of Development:
Status of Commercialization:
Ready for Technology Transfer
Major Raw materials Utilised:
Low alloy steel
Major Plant Equipment and Machines required:
Heat treatment furnace with temperature control of ± 10°C
Indigenous development of technology and having high potential in general coating industries for commercialization.
Its highly effective coating for corrosion protection of fasteners which remain in tightened condition in open atmosphere for long duration like windmill, Automobile applications. Fastener scan be loosened easily without much effort.
- Composition of Aluminsation mixture
- Aluminisation cycles to be followed
- Packing and sealing of retorts
- Post cleaning of article after aluminisation
Industries / Applications include:
- Nuclear reactor
- Gas turbine
- General industry articles subjected to heavy corrosion