Hydropower Industry

Repairing small bores such as Ø70 is one of the most technically demanding challenges in precision mechanical restoration. With a narrow diameter and limited space, the process requires extremely high accuracy, along with precise control of the heat input and cladding thickness to ensure strong bonding and coating quality. Challenges ...

Turbine shaft restoration is a critical part of maintenance for hydropower generating units. At Ba Thuoc 1 Hydropower Plant (Thanh Hoa Province, Vietnam, with an installed capacity of ~60MW), the turbine shaft journal experienced severe wear after prolonged operation, posing risks to system performance and stability. To address the issue, ...

Laser Cladding is an advanced surface restoration and strengthening technology. It utilizes a high-energy, focused laser beam to melt metallic powder and fuse it with the base material surface. This process creates a dense, wear-resistant coating with excellent bonding and mechanical properties. Laser cladding is especially suitable for components subject ...

Why is rotor repair necessary? The rotor is the central rotating component of a hydro generator, operating under heavy load and in harsh conditions. Over time, it often experiences: Surface wear at bearing or journal areas Cracks, pitting, or scratches due to friction and temperature Dimensional deviations affecting dynamic balance ...

Piston heads made from aluminum alloy are widely used in automotive engines, compressors, and industrial equipment due to their lightweight, high thermal conductivity, and excellent heat resistance. However, during operation, piston heads are prone to wear, cracks, and deformation, which can negatively impact engine performance. PHUONGDONG INDUSTRY offers a high-precision ...

Laser cladding for inner bore repair of gear shafts (Ø30mm) is an optimal solution to restore worn, cracked, or deformed surfaces caused by industrial operation. At PHUONGDONG INDUSTRY, we apply advanced laser cladding technology to precisely restore the inner bore of gear shafts. The process creates a high-hardness alloy layer ...

Laser Cladding is increasingly used in the repair and surface enhancement of industrial components. For hollow parts such as cylinder bores, internal surface restoration presents a number of technical challenges due to space limitations and a high risk of thermal distortion, cracking, and coating delamination. Challenges in Internal Surface Cladding ...

1. Technology Overview Laser cladding with tin-based Babbitt alloy powder is an advanced surface coating technique that restores worn mechanical components such as journal bearings, bushings, and shaft supports. A high-power laser beam melts the Babbitt powder and fuses it metallurgically with the base material, forming a durable and uniform ...

We specialize in providing welding, restoration, and hard coating services for mechanical parts that are resistant to abrasion, corrosion, high temperature… Contact us for advice and support: PHUONG DONG CO., LTD Address: Lane 70, Dan Di, Uy No, Dong Anh, Hanoi, Vietnam Whatsapp/Mobile: +84987.822.360   +84.979.395.735

Piston rod, hydraulic cylinder after a period of working will be pitted, worn, scratched, reducing the working pressure of the hydraulic system. Traditional solutions such as chromium plating will have many disadvantages such as: the plating layer is not more than 1mm, easy to peel off, the adhesion is not ...