RPR® in Rolling Mills

If cracks or damage appear on refractory block(s) of a walking beam furnace for slab reheating the traditional repair method repair consists of removing the damaged block and replacing it by a new one. This method requires cooling down of the furnace and therefore to stop the production. An alternative to repair is spraying a wet refractory mix on the hot surface with a projection method. However gunning on a hot surface depends of a lot of parameters and successful repair operation remains uncertain because of thermal shocks due to water.

FIB-Services markets a ceramic welding technology witch allows the repair at service temperature. As a consequence, it leads to energy saving and to maintain the production constancy.

Advantages

1. Repair at service temperature
2. Dry repair material
3. No cool down / reheating requested : energy saving
4. Production constancy
5. Quick repair : less than 8 hours production stop
6. Strong adhesion onto surface under repair

Pictures

Damages Before RPR® Repair	During RPR® Repair	After RPR® Repair
Repaired area after 2 Months of Production
Crack to be repaired	During RPR® repair	after RPR® repair

Back to top