The scroll of a centrifuge is an interesting wear part. It is a combination of abrasion on the outer edge and of erosion on the pushing face. Most of the abrasion occurs on the tapered area of the scroll.
Two types of tungsten carbide hardfacing products are well known for this application.
The oldest one is the tuberod type (thin wall tubes filled with some kind of tungsten carbide). Applying tuberod is a tedious and slow process which gives limited protection due to a number of technical variable parameters.
The other one is sintered carbide tiles mounted on a steel support. The steel support is welded onto the flight of the scroll. This process is interesting because it requires a low level of skill to weld the assembly. The drawbacks are the sensitivity of the tiles to impact from coarse foreign materials (tiles can shatter or be ripped from their support) and there is also a high cost factor to be considered.
Lesser known are two, cord type, tungsten carbide based products manufactured by TECHNOGENIA . These products address specifically the abrasion/erosion pattern of a centrifuge scroll. They are fast to apply, after minimum training of the applicator, impact resistant and surprisingly cost effective versus the other products on the market.
The picture shows the exceptionally smooth finish and thickness control achievable with these cord products.
The versatility of these products also allow easy buildup of worn areas, thus reducing equipment downtime and repair costs.
Please " CONTACT US" and we will tell you more about increasing equipment availability.