Service

Continuing our series on the application of Laser Cladding technology for internal bore restoration, Phuong Dong presents more actual images from projects we have carried out. Due to the variety of component geometries, bore diameters, and hard-to-reach areas, internal bore cladding requires specialized cladding heads, suitable workpiece positioning, and precise ...

Project Overview Component: Hydropower turbine runner D1740 Diameter: 1.74 m Weight: 4.4 tons Technologies: Laser Cladding & PTA Location: Muong Kim 3 Hydropower Plant, Lai Chau, Vietnam Laser Cladding & PTA Restoration After years of operation in water, the turbine runner suffered from wear and cavitation erosion. Phuong Dong worked ...

During operation, the turbine cover seal ring may suffer from wear, scratches, or dimensional changes due to prolonged working conditions. Proper restoration of the worn area helps maintain sealing performance, stable operation, and extend the service life of the component. Restoration Solution Using Laser Cladding Phuong Dong uses Laser Cladding ...

Guide vanes are critical components of a hydropower turbine, controlling and directing water flow into the runner. After long-term operation, their surfaces can suffer from wear, erosion, and cavitation, resulting in changes to the original dimensions and profile. Instead of replacing the entire component, Laser Cladding can be used to ...

During operation, the working surfaces inside a valve body can experience wear, resulting in dimensional changes that may affect sealing performance, assembly accuracy, and overall valve operation. For this project, the area requiring restoration was a Ø110 mm bore located deep inside the valve body, making access and surface repair ...

Phuong Dong has completed the restoration of a Francis turbine runner D840 using PTA (Plasma Transferred Arc) and Laser Cladding technologies, with 410NiMo and Stellite 6 welding powders. After prolonged operation, the turbine runner developed areas affected by wear, corrosion, and cavitation erosion. Phuong Dong carried out inspection and surface ...

Phuong Dong has carried out numerous equipment restoration projects for hydropower plants, including the turbine runner of Alin B2 Hydropower Plant. After a period of operation, the turbine runner developed various types of damage, including wear, chipping, blade deformation, and corrosion. Phuong Dong carried out inspection, machining, and restoration using ...

The turbine runner is a critical component of a hydropower unit, directly exposed to the force of water during operation. After years of service, turbine runner blades can suffer from wear, cavitation, corrosion, and long, deep cracks, affecting the equipment’s durability and operating performance. In this project, Phuong Dong restored ...

In the automotive industry, stamping dies play a critical role in determining product quality and production efficiency. Because they operate continuously under high mechanical loads, areas such as cutting edges, radii, and forming surfaces are subject to significant wear. These working areas therefore require surface hardening to ensure die durability ...

After years of operation in a hydropower environment, the blades of a Francis turbine runner are often affected by cavitation erosion and corrosion, leading to material loss, reduced turbine efficiency, and a shorter service life. In this project, PHUONG DONG successfully restored a Francis turbine runner with a diameter of ...