What is Thermal Spray
- Thermal spray is a coating process in which melted wire or powder materials are sprayed onto the surface of the work piece.
- Thermal spray coatings not only repair damaged surfaces, but can replace worn surfaces with a stronger, better-wearing finish that can keep your equipment running better, longer.
- Thermal spray can also extend the life of your NEW parts by coating them prior to putting them into service – this will maximize your investment in new parts for your process.
Benefits of Thermal Spray
- Reduced Cost– Instead of making the entire part out of an expensive material, a high-performance material is sprayed onto a low-cost base material.
- Low Heat Input– Thermal-sprayed coatings do not impact the substrates’ microstructure. The coating does not penetrate the base material, i.e., there is no heat-affected zone.
- Versatility– Almost any metal can be sprayed.
- Thickness Range– Can build up from 0.001″ to more than 1″ thickness, depending on the coating sprayed.– Coating thicknesses generally range from 0.001″ to 0.100″.
- Processing Speed– Spray rates range from 3 to 60 lb/h depending on the material and the spray system.
Other benefits include:
- Thermal Spray is a mature process dating back to the early 1900’s – with proven results
- Application Specific – Engineered Coating
- Superior Wear Resistance
- Excellent Corrosion resistance
- Dimensional restoration
- Excellent Bond Strength
- Provide textured surfaces for traction/grip
- Heavy Build-ups More Quickly
- Minimal heat build-up in base metal (<300°F)
Types of Thermal Spray
Click below to view a description of the different types of Thermal Spray
High Velocity Oxygen Fueled (HVOF)
Twin Wire Arc Spray (TWAS)