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Tungsten Carbide Cladding

  • Tungsten CarbideVery Strong Bond Strength
  • High Resistance to Abrasives
  • High Resistance to Erosion
  • High Resistance to Impact
  • Low Oxide Level
  • High Temperature Resistance

When Tungsten (W) and Carbon (C) unite they become one of the hardest of all carbides.  Tungsten Carbide is an ideal material when confronting severe abrasion applications.  Tungsten Carbide Hardfacing will reduce eductor wear and increase the eductor's service life.

 

The higher cost of tungsten carbide-clad parts stems from the manufacturing process. Basically, the process starts with a ‘substrate’–for example, a cast and/or machined raw body with metallurgical properties to optimize cladding. Then technicians apply a flexible, organic cloth imbedded with evenly-distributed, size-controlled particles of tungsten carbide. The cloth can conform to complex geometries. The technicians overlay the fitted tungsten carbide cloth with a similar cloth containing nickel, chromium, boron, and other braze elements. Then they heat the screw element in a vacuum furnace, which burns off the organics and ‘infiltrates’ the molten braze alloy throughout the tungsten carbide layer.

 

The resultant cladding has no interconnected porosity, is uniform in depth and loading, and is metallurgically bonded to the substrate with a bond strength in excess of 70,000 psi (4,922 kg/m2).

 

The performance of the tungsten carbide surface extends beyond much greater resistance to abrasion from ingredient particles. There also is improved resistance to corrosion from chemical reactions and erosion caused by liquid cavitation. Tungsten carbide provides overall wear performance that is also superior to other steel wear protection methods.

 
Current areas of use include:
  • Mining
  • Processing of Ores & Minerals
  • Agriculture
  • Construction
  • Drilling for Oil & Gas
  • Horizontal Directional Drilling
  • Tunneling
  • Recycling
 
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