Fuel type supersonic spraying equipment with high quality coating.

HV - 80 type supersonic flame spraying system is the latest research results of the company, has reached and surpassed the most authoritative international praxair surface technology companies in the United States production JP5000 HVOF coating system.

HV - 80 supersonic flame spraying is a new type of HVOF system, it is the basic principle of accelerant oxygen by atomizing nozzle kerosene fully atomized mixture into the combustion chamber, after high temperature and high pressure gas, after ignition system to ignite the laval nozzle ignition combustion forms after high temperature and high pressure of supersonic jet flow, powder feeding system will powder materials, from the low pressure area into flame stream heating accelerated after spray to the workpiece surface coating with high quality.HV - 80 spraying system is in the introduction, digestion and absorption of foreign advanced equipment and technology, on the basis of the development of spraying equipment, and other HVOF has eight different notable features:

1Use for kerosene fuel, accelerant for oxygen, is a relatively safe combustion mode;

2. Gun structure based on design of principle of rocket generators chamber pressure of 150 psi, flame flow rate of more than 2000 m/s, the output power and can be adjusted;

3. Spray gun using radial send powder, powder is the new injection method can better melt and evenly distributed throughout the flames, to improve the efficiency and quality of coating;

4. System design will be located in a certain temperature range interval, the speed increase as the main objective function of structural optimization;By X-ray diffraction test proves that the equipment made by coating not only high bonding strength, coating density is high, and the surface stress is compressive stress;

5. Modular design, the high performance PLC control, safe operation is simple;

6. The particles of the cause of combustion design speed of 1100 m/s (3300-3300 per feet per second), HVOF system significantly faster than others;

7. The thickness of coating layer is more than 1/2 inch (compressive stress coating), microhardness is higher than any other HVOF system (HV - 80 type spraying WC - Co coating microscopic hardness up to 1450, and other gas HVOF spray gun spraying WC - Co coating microhardness was only about 900 ~ 1100);

8. HV - 80 achieved excellent high-pressure HVOF coating quality, the coating bond strength of up to 90 mpa.

Supersonic flame spraying system to include steel, shipbuilding, aerospace, carton machinery, paper machinery, plastic machinery, petrochemical machinery and general machinery coating industry to provide quality services.Supersonic flame spraying coating has become such as iron and steel industry of the corrugated roller of all kinds of roller, carton machinery, large diesel engine into the exhaust valve rod coating.
In recent years, the supersonic flame spraying system in ball valve and gate valve industry application obtained fast development, especially in jiangsu region, almost became a synonym for valve spray supersonic flame spraying.
HV - 80 via the radial send powder, design based on rocket engine, combustion flame flow rate reaches more than 2000 m/s.This new injection method make the particle can be well melted and particle more evenly distributed in the whole flame, improve the efficiency of the cover and the quality of the coating.Particles of the cause of combustion design speed of 1100 m/s (3300-3300 per feet per second), significantly faster than other HVOF system.HV - 80 can spray coating thickness is more than 1/2 inch (compressive stress coating), microhardness is higher than any other HVOF system (HV - 80 type spraying WC - Co coating microscopic hardness up to 1450, and other gas HVOF spray gun spraying WC - Co coating microhardness was only about 900 ~ 1100).
HV - 80 type USES the design of simple and effective means to realize the perfect high-pressure HVOF coating quality.Advantages include:

1, coating and high density can be controlled
2, coating high hardness, and can be controlled
3, high bonding strength
4, coating thickness is more than 1/2 inch (12.7 mm)
5, the coating surface morphology is smooth

In addition, HV - 80 type four times greater than other gas HVOF spray rate.It is the outstanding rate and productivity makes HV - 80 type system:

A new generation of HVOF equipment: high pressure HVOF.

1, the coating quality first

HOVF system one of the most important is that it produces coating quality.HV - 80 type is developed in order to guarantee the absolute quality of coating.Coating quality of the basic relationships: high combustion pressure = high gas velocity = high particle velocity = high coating quality.HV - 80 this relationship was optimized.HV - 80 type gun chamber pressure as high as 150 psi, and other gas HVOF spray gun chamber pressure is 30 ~ 60 psi, and well below the HV - 80.There is no other HVOF system can produce such as HV - 80 type of particle velocity.
HV - 80 type high particle velocity key advantage is that absolute coating of high density and low oxidation ingredients.Low oxidation component due to particles in the atmosphere only oxidation time is shorter.High speed also put more dense granules coated, reduced the porosity, produce more compact coating.When the required coating density, polishing high dense coating to produce a fine surface particularly beneficial to request the anticorrosive coating.
Perhaps the most significant HV - 80 type of coating properties is the coating is more than 1/2 inch (12.7 mm) thick and at the same time to ensure the Gao Xianwei intensity and density of the coating.Because the HV - 80 unique high particle velocity is compressive stress coating, and the other of HVOF system are tensile stress in the coating.Tensile stress in the coating as thin as 0.040 inches (1 mm).

HV - 80 type coating quality is one of the key factors of powder in the spray gun to get stable heating.HV - 80 type of radial powder evenly heating the powder injection design.Laboratory experiments have confirmed that the HV - 80 type of WC - Co (cobalt tungsten carbide) and the CrC - NiCr (nickel chromium chromium carbide) coating has a super wear resistance ability - in some cases, other HVOF wear resistance ability is only a third of the HV - 80 type, competitors cannot match has the unique characteristics of the HV - 80.The stability improved microscopic strength and the overall quality of coating.

2, safe operation

HV - 80 with kerosene or similar fuel to run.Usually work for maximum performance, the other HVOF, hydrogen systems generally use is a risk of a lot of gas.But without HV - 80 type using the expensive, it is difficult to deal with the gas to get the best performance.Kerosene is a kind of fuel is widely used in the safety of the millions of households, so HV - 80 is the most safe option of HVOF coating.