Menu

Plastic Industry

Plastic Industry

TRIBODEX™ RANGE OF CERMET COATINGS FOR FEED SCREWS:

 

Plasmatron offers advanced cermet based coatings that endure high abrasion and corrosion as encountered during plastic extrusion process. Coatings prolong operational life of feeder screws without deteriorating performance. In comparison to Hard Chrome plating Tribodex DC coatings 6-10x higher operational life.

Coatings available for Valve Components:

TRIBODEX™ COATING SOLUTIONS
PROPERTIES DC07 DC09 DC09-SX
HARDNESS (HRC) 68 to 72 68 to 73 70 to 74
ABRASION RESISTANCE VERY GOOD EXCELLENT EXCELLENT
CORROSION RESISTANCE EXCELLENT GOOD VERY GOOD
COATING THICKNESS 200 to 275 µm
SURFACE FINISH <0.2 Ra µm (Mirror Finish)
ADHESION >10,000 PSI

 

DC07 is suitable for more corrosive applications and DC09 is more suitable for applications involving high abrasion. DC09-SX is further subjected to ceramic impregnation cycles that make the coating highly impervious and wear resistant. DC09-SX is recommended for applications heavy wear and corrosion.

The process involves deposition of finely distributed carbides in metal matrix. The fine particles are accelerated towards a prepared substrate (Feeder Screw) by means of high-pressure and high-velocity gasses. The sprayed coatings have homogeneity, high hardness and excellent adhesion to substrate to ensure the coatings delivers even in the harshest conditions. Our optimized process ensures minimum dilution of carbide crystals which results in coatings with higher strain endurance. The process is completely automated and has feedback loops to ensure the coating quality is consistent.

Plasmatron is equipped with in-house research and testing facility to ensure the delivered product is optimal and meets high degree of quality standards.