Erosion Resistant
Erosion is a result of the impact of sharp particles on to a surface. Solid particles transported in a gas or liquid flow can cause severe damage to industrial components, leading to expensive repair or replacement. Thermally applied coatings offer excellent resistance to erosion at high and low service temperatures, due to the way they are formed. Large particles of Carbide (typically tungsten carbide) are sprayed with a matrix bonding material (typically cobalt). The cobalt is melted and bonds the solid carbides to the substrate and to each other, producing a dense carbide protective surface.
Erosive Wear Test
Materials
Mild Steel
Welded Hardface
HVOF Applied WC/Co
Wear : Life ratio 1 : 4 : 12
Industrial Gas Turbine Row 1 Vane - High temperature erosion-resistant coating on all gas washed surfaces.
Typical Applications
Fans - pulverised coal and cement etc.
Centrifugal Compressors
Centrifugal Pumps
Typical Materials
Carbide/Nickel Chrome(High Temp.)
High Carbon Steels
Nr, Cr, Si, B
Aluminium Titania
Processes