Recently, the material processing engineering major of the Northeastern University is studying the new low-pressure vacuum carburizing heat treatment process initiated by the entrepreneurial team led by the doctor Wang Yijie, which realizes the precise control of the steel layer of the aerospace engine bearings. This process enables higher-end aerospace bearing steels to achieve higher strength, better surface hardness, fatigue strength, wear strength, longevity and better overall performance. This process is leading domestically.
According to the information, aviation engine bearings are key components of the aircraft. The main accessories of the engine's starting system, fuel system, oil system, hydraulic system are driven by the engine rotor through the gear transmission. The bearing material is the basis for ensuring the safety and reliability of the aero-engine. The machining process of the bearing, especially the heat treatment process, directly affects the overall performance of the aeroengine. The carburizing heat treatment process is one of the key technologies to greatly improve the surface hardness, fatigue strength and wear strength of mechanical parts. It is widely used in the surface hardening treatment of key components such as gears, drive shafts and bearings, and upgrades high-end machinery and Quality improvement plays an important role.
