2023-12-01
Ways To Reduce Damage To Hydraulic Cylinders
Unreasonable design: If the structural size of the hydraulic cylinder is poorly designed, it can lead to excessive stress concentrations and damage. For example, if the flange height is too small or the flange outer diameter is too large, the overall response of the cylinder can be too high, leading to failure or damage.
Cylinder wall cracks: Cracks in the hydraulic cylinder wall typically start on the inner wall and propagate outward. These cracks often develop longitudinally or at an angle of approximately 40 degrees to the generatrix of the cylinder wall.
Flange damage: The flange part of the hydraulic cylinder can experience issues such as row lines appearing on the outer surface of the transition arc. These row lines may gradually expand in the circumferential direction and towards the inner wall. In some cases, the cracks can extend to the nail hole, causing partial flange detachment. In severe cases, the flange can develop circular cracks and completely detach along the transition arc.
Cylinder bottom damage: The bottom of the hydraulic cylinder can be susceptible to damage, characterized by the appearance of a circumferential crack on the inner surface of the transition arc. This crack can gradually propagate to the outer wall or even result in complete cracking.
Cavitation damage: Cavitation refers to the formation and collapse of vapor bubbles in a liquid due to rapid changes in pressure. Hydraulic cylinders can experience cavitation, leading to honeycomb pitting and damage, particularly on the inner wall of the inlet hole.
It is essential to consider these potential failure modes and design hydraulic cylinders with appropriate structural dimensions, materials, and operating conditions to minimize the risk of damage and ensure reliable performance.
