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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 ...

Inner bore laser cladding is a technically demanding process that requires specialized equipment and extensive experience, as it involves handling various bore diameters, different depths, and complex component geometries. With conventional welding methods, controlling the quality of the cladding layer inside bores is often limited and difficult to achieve consistently. ...

During long-term operation, the intake–exhaust valve ports on the compressor cylinder body are subjected to high pressure, elevated temperature, and continuous vibration. Over time, these ports become worn, scratched, and lose sealing capability, reducing compression efficiency.With a D70 port at a depth of 120 mm, the workspace is extremely narrow ...

In modern manufacturing plants, grinding and surface finishing tasks often require significant time and rely heavily on manual labor, leading to low productivity and inconsistent quality. Robotic grinding technology offers an effective solution by automating the process, enhancing accuracy, and ensuring consistent results across all workpieces. 1. What is a ...

Thread Wear in Industrial Components Threaded sections in industrial machinery often operate under high load, vibration, friction, and exposure to harsh environments. Over long-term operation, threads are prone to wear, deformation, and dimensional loss, leading to loose fittings, reduced tightening ability, and potential operational failures. Traditional repair or replacement methods ...

Harsh Operating Conditions Faced by Pump Pressure Plates The pressure plate inside a pump housing is a critical component that directly withstands high pressure, heavy friction, and exposure to acidic or chemically corrosive fluids.After long periods of operation, this surface often becomes severely worn or deeply pitted, leading to leakage, ...