In the hydraulic and motion systems of heavy construction machinery such as excavators, loaders, cranes, and tunnel boring machines, countless high-load, high-frequency reciprocating or rotating movements rely on precisely matched mechanical structures.

The continuous vibration caused by imbalance can lead to loosening of shaft components and even catastrophic failures such as gear breakage.

The surface treatment technology of large flange of engineering machinery accessories needs to comprehensively consider material properties, environmental adaptability and cost-effectiveness.

As the core moving component of construction machinery, such as internal combustion engines, hydraulic systems, and compressors, pistons' performance directly determines the efficiency, reliability, and service life of these equipment.

Surface treatment technology is the key to optimizing the friction performance of construction machinery parts piston.

To ensure the positioning accuracy of bolt holes in large flanges of construction machinery accessories, it is necessary to first lay the foundation in the pretreatment of the blank.