HVOF Thermal Spray
HVOF is a high velocity, low temperature thermal spray coating process using gas combustion (hydrogen) or liquid fuel (kerosene).
Innovative coating technology
HVOF Coatings for an Extensive Array of Applications and Industries.
Plasma innovative thermal spray
Ceramic, carbide and super alloy coatings to protect mechanical parts
HVOF innovative thermal spray
Coatings for an Extensive Array of Applications and Industries
Our Services
Plasma Thermal Spray
The plasma spraying process involves the latent heat of ionized inert gas (Plasma) being used to create the heat source.
Component Manufacturing
TSS offers the "value added" service of providing turnkey thermal spray coated components such as shafts or sleeves.
Repair & Dimensional Restoration
The equipment and parts in every industry are subjected to abrasive wear and/or corrosive and erosive wear.
Laboratory Services
TSS has a complete thermal spray metallurgical lab for coating development, application and process optimization to ensure quality results.
Welcome!
TSS presentation
Advanced Thermal Spray Solutions for Industrial Performance
TSS s.r.l is unique in its ability to work with its customers and provide them with a custom engineered solution for their specific surface engineering requirements.
Due to our vast 30 years experience in the field of thermal spray coatings as well as the capabilities of our laboratory facilities, engineering department, and machining facilities, TSS s.r.l is highly capable of assisting you in any phase of thermal spray coatings.
What is HVOF coating?
High Velocity Oxy-Fuel (HVOF) coating is an advanced thermal spray process widely used to improve the performance and durability of critical industrial components. The system works by combusting fuel gases such as hydrogen or liquid fuels like kerosene, mixed with oxygen under carefully controlled pressure and combustion conditions. This reaction generates an extremely high-velocity gas stream capable of propelling coating particles at nearly supersonic speeds onto the substrate surface. The result is a dense, strongly bonded coating with superior hardness, wear resistance, and corrosion protection. In thermal spray technology, the rule is simple: higher combustion pressure means higher gas velocity, greater particle speed, and ultimately, better coating quality.
What is Plasma (APS) spraying?
Atmospheric Plasma Spraying (APS) is a thermal spray process that uses the energy of ionized inert gas — known as plasma — to generate an extremely high-temperature heat source. The most common plasma gas is argon, often combined with secondary gases to adjust the plasma characteristics. During the process, argon flows between the electrode and nozzle, where a high-frequency or high-voltage arc is established. This arc ionizes the gas stream, creating plasma. By increasing the arc current, the plasma arc becomes thicker and more highly ionized, producing the temperatures required to melt a wide range of coating materials.
What is thermal spraying?
Thermal spraying, also known as metal spraying, is an advanced surface engineering process used to enhance and protect critical components. In this technique, a wide variety of metals, alloys, and ceramics are melted and sprayed at high velocity onto the surface of another material, creating a strong and durable coating. The process is highly versatile and allows the application of protective coatings that improve wear resistance, reduce corrosion, restore damaged parts, and extend the service life of industrial equipment. Thanks to its adaptability, thermal spraying can be applied to different substrates—such as steel, aluminum, or composites—across industries like aerospace, automotive, energy, and manufacturing.
Chromium Carbide
Ceramic
Bronze Spray
Chromium Carbide
Thermal spray materials
Coatings material is a blend (75/25) of very fine particles of chromium carbide and nickel chromium powders. When properly sprayed using the HVOF process, it produces coatings which are very hard, dense and well bonded. Because of its unique combination of properties, HVOF Chromium Carbide is recommended for resistance to wear by fretting, abrasive particles and hard surfaces in the temperature range 540°- 815°C (1000°-1500°F).
HVOF Chromium Carbide coatings are dense (less than 1/2 volume percent porosity) and well bonded (tensile bond strength in excess of 12,000 psi, 83 MPa). These coatings, however, may be best characterized by their high macro and microhardness which translates into excellent high temperature wear resistance.
Ceramic
Thermal spray materials
Plasma Tungsten Carbide
Coatings material is a fine grade tungsten carbide-cobalt aggregate powder forplasma spray. It produces the best coatings for low temperature wear resistance of alltungsten carbide powders. These coatings are recommended for resistance to wear byabrasive grains, hard surfaces, fretting and particle erosion.
Bronze Spray
Thermal spray materials
Aluminum Bronze
Coatings material is a fine grade aluminum bronze powder. When sprayed with the HVOF process, dense, high bond strength coatings are produced. These deposits can be readily machined, milled, drilled/tapped or otherwise finished. This unique set of physical properties makes Aluminum Bronze ideally suited to restoration of worn or mis- machined non-ferrous components. This coating is recommended for soft bearing applications and to resist wear by fretting, hard surfaces and cavitation.
HVOF Sprayed Aluminum Bronze coatings are harder and exhibit a higher tensile bond strength than standard aluminum bronze deposits. The as-sprayed surface finish is also finer than comparable standards. These data reflect the higher coating density, improved bonding and superior coating integrity which results from the HVOF process.