Operating Challenges and Wear Problems in Closed Impellers Closed impellers operate under high pressure and high flow velocity, frequently subjected to severe mechanical wear and cavitation—especially along the outer rim and discharge areas… Closed impellers operate under high pressure and high flow velocity, frequently subjected to severe mechanical wear and ...

Generator Shaft Journal and Wear Condition The shaft journal is a critical component in a generator, responsible for centering and transmitting the rotational motion between the rotor and its connected parts. During continuous operation, it is subjected to high loads, friction, vibration, and elevated temperatures, leading to surface wear, erosion, ...

In industrial stamping press systems, the crankshaft plays a central role — converting the motor’s rotational motion into the up-and-down linear motion of the punch. This enables the press to perform accurate and continuous stamping operations during production. Importance of the Crankshaft The crankshaft endures heavy impact loads, repeating millions ...

In power transmission systems, the coupling is a critical component that connects two shafts and transmits torque. After long periods of operation, the inner surface of the coupling bore often becomes worn, causing vibration and reduced efficiency. At PHUONG DONG, we apply Laser Cladding technology to restore the inner bore ...

Damage Condition During operation, pump casings are exposed to high pressure, friction, and corrosive environments. Critical areas such as bearing seats, flanges, and flow-contact surfaces often suffer from wear, pitting, cracks, or deformation. If not repaired promptly, these damages can cause leakage, reduced efficiency, or even complete pump failure. Laser ...

Restoring pump impellers with metal 3D printing technology (Laser Metal Deposition – LMD, also known as Laser Cladding) is a modern method that rebuilds worn, eroded, or locally corroded parts by adding precise layers of metal material. This technology enables accurate layer-by-layer deposition to restore the original geometry of the ...

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 ...

Why do gears need surface hardening?Gears are essential components in power transmission systems. They operate under heavy loads and constant friction and impact. Over time, gear teeth surfaces may wear, crack, or deform.Increasing surface hardness enhances wear resistance, maintains transmission accuracy, improves load capacity, and extends the service life of ...

In industries such as thermal power, oil & gas, cement, and steel production, valve cages operate under extreme conditions — high temperature, high pressure, and continuous wear and corrosion. Over time, the surface of these components deteriorates, leading to reduced efficiency, safety risks, and higher maintenance costs. Common Problems of ...

The Importance of the Piston in a Hydraulic Breaker A hydraulic breaker (or hydraulic hammer) is a specialized attachment typically mounted on excavators, used for breaking rocks, concrete, or hard structures. Among its components, the piston plays a crucial role — transmitting the hydraulic energy directly to the chisel tip. ...