Marine crankshaft forging is an important part of Marine power system, its surface strengthening technology is of great significance to improve the wear resistance, corrosion resistance and fatigue resistance of products. This paper will discuss the surface strengthening technology of Marine crankshaft forgings and its application, in order to provide useful reference for enterprises.
Surface strengthening technique
Carburizing treatment: By placing the crankshaft forgings in the carburizing medium, the carbon concentration of the surface layer is increased, thereby improving the hardness and wear resistance of the surface. Carburizing is usually used to improve the fatigue resistance of crankshaft forgings.
Nitriding treatment: By placing the crankshaft forgings in the nitriding medium, the nitrogen concentration of the surface layer is increased, thereby improving the hardness and wear resistance of the surface. Nitriding treatment is usually used to improve the corrosion resistance of crankshaft forgings.
Shot peening: By spraying steel pellets or ceramic particles at high speed, the surface of the crankshaft forgings is strengthened by impact to improve the surface hardness and wear resistance. Shot peening is suitable for improving the fatigue resistance and corrosion resistance of crankshaft forgings.
Laser beam surface treatment: The use of laser beam on the surface of the crankshaft forgings for rapid heating and cooling, so that the surface phase change hardening, thereby improving the surface hardness and wear resistance. Laser beam surface treatment is suitable for improving the fatigue resistance and corrosion resistance of crankshaft forgings.
Applied research
Improvement of wear resistance: Through surface strengthening technology, the wear resistance of Marine crankshaft forgings can be improved, the wear and friction loss can be reduced, and the service life can be extended.
Corrosion resistance enhancement: Through nitriding treatment, shot peening and other surface strengthening technology, can improve the corrosion resistance of Marine crankshaft forgings, reduce corrosion damage, improve product reliability.
Anti-fatigue performance improvement: Through carburizing, shot peening and other surface strengthening technology, can improve the anti-fatigue performance of Marine crankshaft forgings, reduce the generation and expansion of fatigue cracks, improve the reliability of products.
Reduce maintenance costs: Through surface strengthening technology, you can extend the service life of Marine crankshaft forgings, reduce the frequency of maintenance and replacement, and reduce maintenance costs.
The surface strengthening technology of Marine crankshaft forgings is of great significance to improve the wear resistance, corrosion resistance and fatigue resistance of the products. By choosing the appropriate surface strengthening technology, the performance and service life of the product can be improved, the maintenance cost can be reduced, and the competitiveness of the enterprise can be enhanced. Therefore, enterprises should pay attention to the application and research of surface strengthening technology, and constantly improve and optimize the relevant technology and management measures to adapt to the changing market environment and enterprise development needs.
