The HVOF (High Velocity Oxygen Fuel) method is based on the use of a supersonic gas flow formed during the combustion of a fuel mixture in an oxygen environment. This jet acts both as a heat source and an accelerator for the particles of the sprayed material.
Unlike traditional methods, detonation of the fuel mixture occurs continuously, which allows tungsten-carbide powder or other hard alloys to accelerate to speeds of 750 m/s and higher.
The particles reach the surface of the part in a plastic state, forming a layer with unique characteristics.
Industrial solution for extreme operating conditions:
Surface hardening:
Creating a tungsten carbide “shell” that is resistant to abrasive wear.
Heat resistance:
Protection of parts operating at critical temperatures.
Anti-corrosion barrier:
Complete isolation of the base metal from the aggressive environment.
This is a symbiosis of the best qualities of two technologies: the continuity of gas flame spraying and the high quality of detonation spraying.
Acetylene is mixed with oxygen and nitrogen (the carrier gas), forming a flame with a temperature of up to 2700°C. Powder particles passing through this nozzle are accelerated to supersonic speeds (750 m/s) and literally “welded” into the surface of the part from a distance of 100–120 mm.
Bridge structures, transmission line supports, housing and communal services elements (water tanks, gas holders), corrosion protection of road barriers and building metal structures
Ship hulls, hydroturbines, locks, dam gates, and dock components. Aluminum coatings are essential for protection against seawater.
External and internal protection of large-diameter pipes. Anti-corrosion treatment of oil and petroleum product storage tanks. Protection of metal structures of drilling platforms and wind turbine supports.
Creation of barrier layers on containers and reactors operating in weakly aggressive environments
Gas turbine blades, steam turbine blades, rotors, stators, combustion chambers, heat exchangers, steam generator tubes, pumps, valves, shutters, screws, hydraulic turbine impeller, wind turbine blades, bearings, camshafts, etc.
Rollers, guides, roller conveyor rollers, mill grids, screw conveyors, feeders, conveyor chains, sieves, sieves, Mills, crushers, exhaust fan wheel, trays, dies, press molds, scissors, etc.
The ability to apply a layer with minimal allowances, which reduces material consumption and part weight.
The coating works as a monolith, preventing corrosion from reaching the body of the part.
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