Corporate Website » Powder Applications » Surface Coating »

Manufacturing

There are a number of surfacing methods used in the industry. Below are few examples.

    
Powder welding gives a smooth, dense coating, which can often be used with little or no further machining. The torches are simple to use – only the flame requires adjustment.
Flame spraying is a two-step process (spraying followed by fusing) that results in a dense coating and a metallurgical bond. The process can employ high-hardness alloys including mixtures containing tungsten carbide. The technique is easy to automate and can be adapted for the spraying of cylindrical parts.     
     
HVOF is the surfacing method of choice when extremely high-density coatings are required. The process is easily automated and very little subsequent machining is required.  

Plasma Transferred Arc (PTA) surfacing is ideal for high unit volume automated applications, such as thermal surfacing of exhaust valves. Low base metal dilution and a wide range of consumables are just two of several advantages that can be gained from using the technique.