High Velocity Air Fuel (HVAF) – is a thermal spray process with a low combustion temperature (1,960-2,010°C | 3,560-3,650°F), and high particle velocities (800 to over 1,000 m/s | 2,625-3,281 ft. /sec.) that result in low-oxidized, ductile, non-porous, high-bond carbide and metal coatings. The spray rate is up to 500 g/min (66 lbs. /hr.), making the process much faster and providing a significant advantage over HVOF.
The HVAF Gun is a small jet engine that combusts compressed air and LPG / propane/ propylene / MAPP fuel and generates a jet of metal particles with a velocity from 800 to over 1000 m/sec. Such particles form incredibly dense and tough coatings. Our signature coatings are tungsten carbide coatings (WC12Co, WC-10Co-4Cr, etc.) which are non-permeable to gas, having a hardness of 1,400-1,600+ HV300. Regardless of their high hardness, these coatings are not brittle since decarburization or oxidation does not occur in the comparably low-temperature HVAF process.
Electrolytic hard chrome coating (EHC) uses hexavalent chromium and poses severe health and safety concerns. Hence, hard chrome replacement with safer tools is preferable. High kinetic, thermal spraying technology withtungsten carbide, stainless steel or ironis advisable.
We offer HVAF and HVOF processes for hard chrome replacement of components.
The newly developed HVAF systems use higher kinetic energy at a lower temperature, significantly reducing feedstock oxidation and carburisation and increasing resistance against wear and corrosion.
Flash-Carbide is hard (over 1400 HV300) with a High-Velocity Air-Fuel (HVAF) spray of a dense coating of WC-10Co-4Cr composite material, applied to metallic parts and structures, improving their surface resistance to severe wear and tear.
Phone Number -
+91-8983234693 / +91-9004678311
Email id -
bhavin@endurancewearsolutions.com
Address -
Unit No. 12, Jogani Industrial Complex, Building No. 6, V. N. Purav Marg, Chunabhatti East, Sion,
Mumbai - 400 022, Maharashtra State.
India
