These products are spheroidal, agglomerated and sintered
powders for thermal spraying containing 83% tungsten
carbide as hard material and a cobalt matrix, which functions
as a binder material for the carbide particles.
Coatings of these materials provide a higher toughness and
fretting resistance than coatings of 88WC 12Co as a result of
the higher cobalt levels.
Coatings of these materials are dense and show good bond
strength when applied using the HVOF process or the APS
process using a TriplexPro™ series gun.
Typical Uses and Applications :
Tungsten carbide – 17% Cobalt materials from Oerlikon
Metco are among the best-known thermal spray powders for
use in wear applications in non-corrosive media at service
temperatures below 500 °C (930 °F) . Typical applications
include:
- Landing gears
- Mid-span stiffeners (shrouds)
- Pump seals
- Sucker rod couplings
- Extrusion dies
- Aircraft flap tracks
- Exhaust fans
- Crushing rollers
