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Spray coating processing SPRAY PROCESSING
HVOF Supersonic Flame Process
HVOF Supersonic Flame Process: In supersonic flame spraying, oxygen and aviation kerosene are mixed in a premixing system and then burned in a high-pressure combustion chamber. The resulting flame jet, combined with high-pressure air passing through a Laval nozzle, generates a high-temperature, high-velocity flame stream that heats metal-ceramic powders to a semi-molten state.
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Product Description
HVOF Supersonic Flame Process
Supersonic Flame Spraying: Oxygen and aviation kerosene are mixed in a premixing system and then burned in a high-pressure combustion chamber. The flame jet generated during combustion, combined with high-pressure air passing through a Laval nozzle, produces a high-temperature, high-velocity flame stream. This flame stream heats metal-ceramic powders to a semi-molten state and propels the partially molten powder onto the substrate surface at a velocity of 2000 m/s, thereby forming a high-quality, wear-resistant coating with excellent bonding strength and density.
The primary coating material used in supersonic flame spraying is WC-Co metal ceramic. The bonding strength and density of supersonic flame-sprayed coatings are higher than those of arc-sprayed coatings. Consequently, the resulting coatings exhibit superior wear resistance. Moreover, since the workpiece temperature during spraying remains below 20°C, no thermal distortion occurs in the workpiece.
The primary coatings used in supersonic flame spraying include tungsten carbide coatings, nickel-chromium-chromium carbide coatings, cobalt-based alloy coatings, nickel-chromium-tungsten carbide coatings, and various cemented carbide coatings.
The hardness of supersonic flame spraying is controllable within the range of HRC 50–70.
Bond strength between the supersonic flame-sprayed coating and the substrate: ≥80 MPa.
High-temperature resistance of supersonic flame-sprayed coatings: controllable between 600℃ and 1200℃.
Wear resistance of supersonic flame-sprayed coatings: It is 10 to 40 times that of 20# steel.
Characteristics of supersonic flame: The spraying temperature is below 120℃, and no thermal deformation occurs.
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Spraying equipment SPRAY EQUIPMENT
HVOF Supersonic Flame Process
HVOF Supersonic Flame Process: In supersonic flame spraying, oxygen and aviation kerosene are mixed in a premixing system and then burned in a high-pressure combustion chamber. The resulting flame jet, combined with high-pressure air passing through a Laval nozzle, generates a high-temperature, high-velocity flame stream that heats metal-ceramic powders to a semi-molten state.
工艺
涂层
喷涂
火焰
超音速
材料
工件
所以
熔化
产生
Product Description
HVOF Supersonic Flame Process
Supersonic Flame Spraying: Oxygen and aviation kerosene are mixed in a premixing system and then burned in a high-pressure combustion chamber. The flame jet generated during combustion, combined with high-pressure air passing through a Laval nozzle, produces a high-temperature, high-velocity flame stream. This flame stream heats metal-ceramic powders to a semi-molten state and propels the partially molten powder onto the substrate surface at a velocity of 2000 m/s, thereby forming a high-quality, wear-resistant coating with excellent bonding strength and density.
The primary coating material used in supersonic flame spraying is WC-Co metal ceramic. The bonding strength and density of supersonic flame-sprayed coatings are higher than those of arc-sprayed coatings. Consequently, the resulting coatings exhibit superior wear resistance. Moreover, since the workpiece temperature during spraying remains below 20°C, no thermal distortion occurs in the workpiece.
The primary coatings used in supersonic flame spraying include tungsten carbide coatings, nickel-chromium-chromium carbide coatings, cobalt-based alloy coatings, nickel-chromium-tungsten carbide coatings, and various cemented carbide coatings.
The hardness of supersonic flame spraying is controllable within the range of HRC 50–70.
Bond strength between the supersonic flame-sprayed coating and the substrate: ≥80 MPa.
High-temperature resistance of supersonic flame-sprayed coatings: controllable between 600℃ and 1200℃.
Wear resistance of supersonic flame-sprayed coatings: It is 10 to 40 times that of 20# steel.
Characteristics of supersonic flame: The spraying temperature is below 120℃, and no thermal deformation occurs.
Online Quotation
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