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Supersonic spraying equipment
2019120314301960
2019120314301960

Supersonic spraying equipment

The supersonic flame is a high-temperature, high-speed combustion flame flow produced by burning propane, propylene and other hydrocarbon gas or hydrogen gas and high-pressure oxygen in the combustion chamber or in a special nozzle. The combustion flame flow speed can reach Mach 5 (1500m/ s) above. Usually called HVOF (High-velocityoxygen-fuel). The powder is fed into the flame axially, and the sprayed particles can be heated to a molten or semi-melted state, and accelerated to a speed as high as 300-500m/s, or even higher, so as to obtain a high-quality coating with high bonding strength and compactness. . The supersonic flame speed is very high, but the temperature is relatively low. For WC-Co cemented carbide, it can effectively inhibit the decomposition of WC during the spraying process. The coating not only has high bonding strength, but is also dense and has excellent wear resistance. Its wear resistance greatly exceeds that of plasma sprayed coatings, which are equivalent to explosive sprayed coatings, and also exceed spot plating hard chromium coatings and molten spray coatings. It is extremely widely used.

Equipment introduction:

The supersonic flame is a high-temperature, high-speed combustion flame flow produced by burning propane, propylene and other hydrocarbon gas or hydrogen gas and high-pressure oxygen in the combustion chamber or in a special nozzle. The combustion flame flow speed can reach Mach 5 (1500m/ s) above. Usually called HVOF (High-velocityoxygen-fuel). The powder is fed into the flame axially, and the sprayed particles can be heated to a molten or semi-melted state, and accelerated to a speed as high as 300-500m/s, or even higher, so as to obtain a high-quality coating with high bonding strength and compactness. . The supersonic flame speed is very high, but the temperature is relatively low. For WC-Co cemented carbide, it can effectively inhibit the decomposition of WC during the spraying process. The coating not only has high bonding strength, but is also dense and has excellent wear resistance. Its wear resistance greatly exceeds that of plasma sprayed coatings, which are equivalent to explosive sprayed coatings, and also exceed spot plating hard chromium coatings and molten spray coatings. It is extremely widely used.

Product description
详情
Device parameters
Device model LT-HVOAF-2500/3000
Input voltage 380V±5 50~60Hz
equipment power 25Kw/30Kw
Source gas Compressed air/propane
Spraying efficiency 2.5㎡ per hour when the coating thickness is less than 0.2mm
Gas pressure >0.8MP
Gas flow >5m³/min
Particle spraying speed >500m/s
Spray powder particle size 300um~400um
Powder feeding amount 10g/min
Spraying distance 150mm~200mm
Bond strength 60~80Mpa
Jet flow 150L/min
Equipment size 500*280*1260mm

 

Equipment pictures

 

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