As a key part of ship, the friction and wear characteristics of Marine rudder forging are of great significance to ensure the safety, stability and prolonging the service life of the ship. In this paper, the friction and wear characteristics and lubrication technology of Marine rudder forgings are studied in order to deeply understand the friction and wear mechanism, and provide technical support for improving the wear resistance and prolonging the service life of rudder forgings.
Friction and wear characteristics of forgings for Marine rudder systems
Friction coefficient: Friction coefficient is an important parameter to measure the frictional properties of materials. In the course of operation, the forgings of Marine rudder system contact with adjacent parts and produce relative motion, resulting in the generation of friction. The size of friction coefficient is affected by material hardness, surface roughness, lubrication conditions and other factors.
Wear forms: The wear forms of Marine rudder forgings mainly include abrasive wear, adhesive wear and fatigue wear. Abrasive wear is caused by hard particles embedded in the surface of the material, resulting in the phenomenon of material spalling. Adhesive wear is caused by the increase of the temperature of the contact surface, which leads to the local adhesion of the material, and the avulsion occurs in the relative motion. Fatigue wear is caused by the effect of alternating stress on the surface of the material to produce fatigue cracks and expand, and eventually lead to the phenomenon of material spalling.
Influencing factors: The friction and wear characteristics of Marine rudder forgings are affected by many factors, such as load, speed, temperature, humidity, lubrication conditions, etc. In the process of friction, the increase of temperature and humidity will lead to the oxidation and corrosion of the material surface, and aggravate the wear; Lubrication conditions have an important effect on the coefficient of friction and wear form, good lubrication can reduce the coefficient of friction, reduce wear.
Influence of lubrication technology on friction and wear characteristics of forgings of Marine rudder system
Lubricant selection: According to the working condition and use requirements of Marine rudder forging, choosing the right lubricant is the key to reduce friction and wear. Commonly used lubricants include lubricants, greases and solid lubricants. When selecting, the viscosity, oil, oxidation resistance, extreme pressure and other performance indicators should be considered to meet the working condition requirements and service life.
Lubrication method: The commonly used lubrication methods of Marine rudder forging include oil lubrication, grease lubrication and spray lubrication. Oil lubrication has good fluidity, can form a uniform oil film, reduce friction and wear; Grease lubrication has good adhesion and oxidation resistance, which is suitable for low-speed and heavy-duty working conditions. Spray lubrication is suitable for special working conditions. The lubricant is evenly coated on the friction surface by spraying to form a protective film and reduce the friction coefficient and wear.
Lubrication system maintenance: Good lubrication system maintenance is an important measure to ensure the normal operation of Marine rudder forging. Regularly check the working condition of the lubrication system to ensure that the lubricant is sufficient and clean, and the lubrication pipe is unimpeded; Replace or clean the lubricant regularly to keep its performance stable; Strengthen the maintenance and maintenance of the equipment, and timely repair or replace the severely worn parts to ensure the normal operation of the equipment.
The friction and wear characteristics and lubrication technology of Marine rudder forging are of great significance to ensure the safety, stability and prolonging the service life of the ship. Through in-depth understanding of the friction and wear mechanism, reasonable selection and use of lubricants and lubrication methods, and strengthening the maintenance of lubrication system, the friction coefficient and wear amount of Marine rudder forging can be effectively reduced, and the wear resistance and service life can be improved. In the future development, enterprises should strengthen technology research and development and innovation investment, constantly improve the manufacturing technology and surface treatment level of Marine rudder forgings, as well as optimize lubrication technology and system design to meet market demand and promote the sustainable development of the Marine industry.
