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What are the methods of ship maintenance?
Release time:
2024-04-29
In order to improve work efficiency, advanced ship maintenance technologies and methods have been widely used in recent years.
In order to improve work efficiency, advanced ship maintenance technologies and methods have been widely used in recent years. The main methods are: ① high-pressure water or high-pressure water sandblasting with a pressure of up to 500 kgf/cm is used to clean and remove rust on the hull, and the rust removal speed can reach 2000 meters per hour; ② high-pressure airless spraying method is used for hull coating, and the pressure is 200 kgf/cm. If the climate is humid, dry with hot air and spray at a speed of 4000 meters per hour. The hull is replaced by prefabricated section by section, and the daily replacement capacity of a single ship reaches 30-40 tons. ④ Divers operate hydraulic or pneumatic rotary brushes and other tools to clean or inspect the hull under water to solve the repair difficulties of large ships without large docks, and can be carried out simultaneously with cargo loading and unloading to reduce the loss of navigation caused by docking. ⑤ Use alkaline solution to remove grease and acid solution to remove dirt on electromechanical equipment, cleaning electrical appliances with neutral solution greatly improves the cleaning efficiency; ⑥ For large mechanical parts such as crankshafts, shafts and caps, the method of not disassembling them to the workshop or repairing them on the ship or at the dock shall be adopted. ⑦ Carry out professional maintenance on precision mechanical parts such as automation devices, speed governors and superchargers; ⑧ The small and medium-sized mechanical parts are replaced and repaired in groups, and the old parts are reused after repair according to the new standards.
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