China DG.Cr3C2-25NiCr Thermal Spraying Powder Suppliers | High-Performance Coatings from Reliable Factory
Basic Information
Product Performance
The coating of DG.Cr3C2-25NiCr powder has many excellent properties. First, its anti-oxidation effect is significant and can effectively resist oxidation corrosion in high temperature environments.
Second, the coating can withstand sliding wear, abrasive wear, erosion and corrosive wear, and is suitable for various harsh working conditions.
In addition, the coating is also resistant to high temperature gas corrosion, high temperature liquid corrosion and high temperature solid corrosion, ensuring its reliability under extreme conditions.
Application Areas
Due to its excellent performance, DG.Cr3C2-25NiCr powder is widely used in many fields. First, at the front end of aircraft engines, the coating can effectively protect engine components and extend their service life. Secondly, on the inner wall of the boiler in a thermal power plant, the coating can resist high temperature and corrosion to ensure the safe operation of the equipment. In addition, key components such as turbine blades and high-pressure valves are often coated with this coating to improve their wear resistance and corrosion resistance.
Spraying process parameters
In the spraying process, it is very important to choose the right spray gun and process parameters. Taking the Lijia kerosene supersonic spray gun as an example, its powder particle size range is 15-45 microns, the barrel size is 8 inches, the kerosene consumption is 25L/h, the oxygen flow rate is 900L/min, the carrier gas flow rate is 7.5L/min, the powder feeding speed is 50-60g/min, and the spraying distance is 320-360mm. These parameters are for reference only. In actual operation, they need to be adjusted accordingly according to different equipment to achieve the best spraying effect.
In Conclusion
Frequently Asked Questions (FAQ)
What is the chemical composition of DG.Cr3C2-25NiCr powder?
The chemical composition mainly includes 10% carbon (C), 20.5% nickel (Ni), and the balance of chromium (Cr), manufactured through an agglomeration and sintering process to form nearly spherical particles.
What are the recommended spraying processes for this powder?
DG.Cr3C2-25NiCr powder is suitable for various thermal spraying processes, including HVAF (high velocity air flame spraying), HVOF (high temperature and high pressure flame spraying), and APS (air plasma spraying).
What are the maximum operating temperature and hardness of the coating?
The coating can withstand a maximum operating temperature of up to 800℃ and exhibits a hardness range between HV900 and HV1150.
In which industries and components is this coating applied?
It is widely used at the front end of aircraft engines, on the inner walls of thermal power plant boilers, and on key components like turbine blades and high-pressure valves to improve wear and corrosion resistance.
What are the typical spraying parameters for a kerosene supersonic spray gun?
Using a Lijia supersonic spray gun as a reference, typical parameters include a powder size of 15-45 microns, an 8-inch barrel, kerosene consumption of 25L/h, oxygen flow of 900L/min, carrier gas flow of 7.5L/min, powder feed speed of 50-60g/min, and a spraying distance of 320-360mm.
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