Скачать или смотреть MEC - Wire HVOF spray System - Metallizing Equipment Co. Pvt. Ltd

With MEC's HVOF solutions, increased performance and improved economics do not remain mutually exclusive concepts. Our surface engineering experts can help you to :
-- Manufacture components with a more economical substrate material, while maintaining specific surface properties by coating suitable material.
-- Improve the service life of an existing component.
-- Repair existing parts to like-new condition.
-- Hard Chrome replacement.
HVOF Spray System Consist Of:
-- Spray Gun
-- Control Panel
-- Powder Feeder
-- Gas Regulator
-- Air Control Unit
-- Hose Units
-- Portable Trolley
-- Water Jam Box and Chiller (Optional) if it is water cooled srpay system
COATING FEATURES:
-- High Density
-- Optimum Hardness
-- Smooth Surface
-- High bond Strength
-- Excellent wear resistance
-- Reduced Oxide content than plasma coating.
WHAT IS HVOF ?
A mixture of gaseous or liquid fuel and oxygen is fed into a combustion chamber, where they are ignited and combusted continuously. The resultant hot gas at a pressure close to 1 MPa emanates through a converging–diverging nozzle and travels through a straight section. The fuels can be gases (hydrogen, methane, propane, propylene, acetylene, natural gas, etc.) or liquids (kerosene, etc.). The jet velocity at the exit of the barrel ( 1000m/s) exceeds the speed of sound. A powder feed stock is injected into the gas stream, which accelerates the powder up to 800m/s. The stream of hot gas and powder is directed towards the surface to be coated. The powder partially melts in the stream, and deposits upon the substrate. The resulting coating has low porosity and high bond strength.

HVOF coatings may be as thick as 12 mm (1/2"). It is typically used to deposit wear and corrosion resistant coatings on materials, such as ceramic and metallic layers. Common powders include WC-Co, chromium carbide, MCrAlY, and alumina. The process has been most successful for depositing cermets materials (WC–Co, etc.) and other corrosion-resistant alloys (stainless steels, nickel-based alloys, aluminum,hydroxy apatite for medical implants, etc.).
For More Information Please visit: http://www.mecpl.com/hvofspray.php