Laser Cladding Phương Đông
Operating conditions of boiler panels
In waste-to-energy and biomass power plants, boiler panels operate under extremely harsh environments:
- Continuous high temperature of 600–800°C.
- Flue gas containing chlorine and sulfur, causing severe corrosion.
- Fly ash and solid particles continuously eroding the surface.
As a result, panels quickly become thinned, cracked, or perforated, leading to leakage, forced shutdowns, and frequent replacement.
With carbon steel or low-alloy steel, the average service life is only 1–2 years, or even shorter under harsh conditions.
Laser Cladding – Inconel 625 Coating
Laser Cladding is an advanced surface coating technology that uses a high-power laser beam to simultaneously melt Inconel 625 alloy powder (a nickel-based superalloy) and a thin surface layer of the boiler panel.
This process creates a strong metallurgical bond, completely different from conventional thermal spray coatings.
Outstanding advantages
- Low dilution, dense coating (nearly 100% density) → excellent adhesion, minimal defects.
- Exceptional resistance to chlorine, sulfur, and high-temperature oxidation.
- Superior wear resistance against fly ash and solid particle erosion.
- Extends boiler panel lifespan to 3–5 years, 2–3 times longer than base steel.
- Reduces maintenance costs and downtime, ensuring continuous and stable plant operation.
Global application trends
Laser Cladding with Inconel 625 is being widely adopted in many countries with advanced energy industries:
- USA and Europe: Pioneering facilities have applied Laser Cladding to boiler panels in waste-to-energy plants, achieving up to 5 years of stable operation.
- Asia: In China, Japan, and South Korea, Laser Cladding with Inconel 625 is used in biomass power plants, effectively reducing corrosion rates and extending panel lifespan by 2–3 times compared to base materials.
- Global trend: Laser Cladding is becoming a standard solution for protecting boiler panels under harsh operating conditions, minimizing maintenance costs, and improving long-term economic efficiency.
Conclusion
With its ability to create a nickel-based alloy coating that resists corrosion, oxidation, and wear, Laser Cladding with Inconel 625 has proven to be highly effective in protecting furnace walls, tubes, and boiler panels in waste-to-energy and biomass power plants worldwide.
This is not only an advanced engineering solution, but also a sustainable direction that optimizes cost and extends equipment lifespan in the modern green energy industry.
PHUONG DONG INDUSTRIAL AND TRADING CO., LTD
Address: Alley 70, Dan Di, Uy No, Dong Anh, Hanoi
Phone/Zalo/Whatsapp: +84 987 822 360
