1. Spraymet started in 1995, with an aim to provide total SURFACE TECHNOLOGY SOLUTIONS SPRAYMETS U R F A C E C O A T IN G

2. COMPANY PROFILE SPRAYMETS U R F A C E C O A T I N G SURFACE COATING & HARDFACING SOLUTIONS Thermal Spray Wire Metalizing , Flame spray , Plasma spray and HVOF Hard facing TIG Rod /PTA hard facing Ni base alloys and Cobalt base alloys Coated parts Component manufacturing as per customer drawing. Pump and Valve Indusrty / steel Industry / General Engineering Industry 3. Our Facilities HVOF Spray System- Both Gas and Liquid Fuel Base 40 KW and 80KW Plasma Spray Systems ABB robots: 2 nos 20 Kgs and 120 Kgs Pay load 10 Ton Crane 500 Kgs Turn Table 3 Mtr X- Y Manipulator 4 accoustic chambers 2 Nos Blasting Cabinets, 1 No Mobile Blasting Unit Measuring Instruments SPRAYMETS U R F A C E C O A T I N G 4. SPRAYMETS U R F A C E C O A T IN G 5. SPRAYMETS U R F A C E C O A T I N G 3 spray booths with Plasma /HVOF/ wire metallizing Roll grinding Long cyl. Grinding 1100diaX 6mts Flat Lapping 6. COMMON SURFACE TREATMENT METHODS Plating Hard chrome,Anodising, ENP* etc. Thermal Spraying Plasma* , HVOF* Weld Cladding MMAW,TIG*,PTA*,Laser Gas Nitriding /Plasma nitriding Physical Vapor Deposition Technology * Presently offered by Spraymet SPRAYMETS U R F A C E C O A T I N G 7. The Man Who invented Thermal spray Dr.Schoop with his first electrically operated metal spraying experimental equipment in 1914 SPRAYMETS U R F A C E C O A T I N G 8. Theory How thermal spray works ? SPRAYMETS U R F A C E C O A T I N G 9. Gun- Flsme/Plasma/HVOF Flame Temp 3000-15000*C Particle velocity V ~ 400-1200m/sec Spraydist6-15inches Noheat transfertobase Grit blasted surface D -- = 3.5 d SPRAYMETS U R F A C E C O A T I N G Heated particles propelled Concept and Schematic of THERMAL SPRAY Layer by layer coating builds up 10. Process of Adhesion & Coating SPRAYMETS U R F A C E C O AT IN G 11. Coating formation 12. LowVel. Com bu stion Flame-Wire D-Gun HVOF High Vel. Flame-Powder Wire-Arc/Arc-Spray Air Controlled Atmosphere Vacuum Inert Shrouded Plasma Air [APS] Shrouded [SPS] Inert [CAPS] Underwater[UPS] High Vel. LowVel. Controlled Atmosphere Vacuum[VP S] Thermal Spray Flame-Rod HVAF HVIF Cold-Spray Helium Nitrogen The Thermal Spray Family Tree Rod Wire Powder Feedstock Materials Heat Source Acceleration ImpactSplatting & Cooling SPRAYMETS U R F A C E C O AT IN G 13. Thermal Spray Processes by means of heat source SPRAYMETS U R F A C E C O A T I N G 14. BASIC THERMAL SPRAY SYSTEMS Flame Plasma Wire Arc HVOF ALL SYSTEMSHAVE FOLLOWING IN COMMON -HEAT SOURCE/-NOZZLETO PROPEL&DIRECT SPRAY/-MATERIAL FEED SYSTEM -INTERNALCOOLING/CONTROLS&MONITORSFOR POWER, COOLING&FEED RATE BUT DIFFER IN FOLLOWING HEAT CONTENT / FLAME VELOCITY &PARTICLEVELOCITY/COTINGBONDSTRENGTH COATING POROSITY/THICKNESSBUILDING CAPABILITY SPRAYMETS U R F A C E C O A T I N G 15. Schematics of Major Thermal processes Wire spray HVOF Spray Plasma Spray 16. Plasma Theory What is Plasma? _ve +ve ARC Neutral Atom --- Ve energy Ionization Ionization of gas leads to release of molecular energy SPRAYMETS U R F A C E C O A T IN G 17. PLASMA SCHIMATIC SPRAYMETS U R F A C E C O A T I N G 18. HVOF Combustion Spray Cooling water in Cooling water outOxygen Fuel Combustor Powder injector Substrate Supersonic flow shock diamonds Coating Cooling water in Cooling water outOxygen Fuel Combustor Powder injector Substrate Supersonic flow shock diamonds Coating Process Characteristics Jet Temperature Generally >2,500 C Jet Speed Typically >1,500-1800 m/s Gases used propane, propylene, hydrogen, or a liquid fuel such as kerosene Particle Speed 600- 1,000 m/s Powder Feed Rate 50-120 g/min SPRAYMETS U R F A C E C O A T I N G 19. Super sonic Flame 20. High Velocity Oxy-Fuel Process The process creates a very high velocity, which is used to propel the particles at near supersonic speeds before impact into the substrate. One of the basic rules of spraying is that high combustion pressure = high gas velocity, high particle velocity and resulting high coating quality 21. Coating characteristics obtained by Thermal Spraying Thickness Possibility 0.05 mm to 2 mm. Ceramics : 0.10 mm to0.50 mm Hardness Up to 1400 Hv (300 gr) Roughness As-sprayed : from 2 to 20 m Ra Accuracy of demention 0.02- 0.05 mm in as sprayed condition Work piece temperature