Zhengzhou Lijia Thermal Spray Machinery Co., Ltd

The HD-8000 supersonic flame spraying developed by Zhengzhou Lijia is a new HVOF system, using aviation-grade kerosene as fuel, at present, it is also one of the most popular kerosene fuel equipment in the world. The basic principle of HD-8000 is to fully atomize the kerosene through the atomizing nozzle to form a combustible mixture, and then enter the combustion chamber, the ignition system ignites it and ignites it through the Laval nozzle to form a high-temperature and high-pressure supersonic flame flow, and the powder feeding system sends the powder material from the low-pressure area into the flame flow, and after the heating is accelerated, it is sprayed to the surface of the workpiece to form a high-quality coating.
The HD-8000 device panel is scientific, intuitive and easy to operate. All kinds of common operations, information display and fault alarm are readily available, in line with the user's operating habits, simple and easy to use, and stable quality.
The HD-8000 has many functions and features, and its advantages are mainly reflected in the following eight aspects:
1) The fuel is kerosene, and the accelerant is oxygen, which is the safest combustion mode in the current market;
2) The structure of the spray gun is designed according to the principle of rocket generator, the maximum combustion chamber pressure is 150PSI, the flame flow speed is more than 2000m/s, and the output power is large and can be adjusted steplessly;
3) The spray gun adopts radial powder feeding, which makes the powder dissolve well and evenly distribute in the whole flame, which improves the covering efficiency and the quality of the coating;
4) The system design positions the temperature range in a certain range, and takes the speed improvement as the main goal of structural optimization; The test proves that the coating of the equipment not only has high binding strength and high coating density, but also the surface stress is compressive stress;
5) The fuel flow of the system adopts full closed-loop design, modular design, high-performance PLC control, safe and simple operation;
6) Combustion design produces particles with a velocity of 1100 m/s (3300 to 3900 feet per second), which is significantly faster than other HVOF systems;
7) The thickness of the spray coating is greater than 10mm (compressive stress coating), and the microhardness is higher than that of any other HVOF system (HV-80 spraying WC-Co coating microhardness is up to 1450;
8) HV-80 achieves excellent high pressure HVOF coating quality, and the coating can reach 70MPa binding strength.