Nantong Senhai International Shipping Agency Co., Ltd.

What are the ship maintenance methods?

Time:

2021-11-12 10:57:54.299

New Maintenance Methods In order to improve work efficiency, advanced ship maintenance techniques and methods have been widely adopted in recent years, mainly including: ① high-pressure water with a pressure of up to 500 kgf/cm or high-pressure water sandblasting to clean the hull and remove rust, with a rust removal speed of 2000 meters/hour; ② The hull is painted by a high-pressure airless painting method with a pressure of 200 kgf/cm, and dried by hot air if the climate is humid, spraying speed up to 4000 m/hour; ③ The hull plate is changed by segmental and piecewise prefabrication method, and the daily plate change amount of a single ship reaches 30~40 tons; ④ The diver controls hydraulic rotary brush or pneumatic rotary brush to clean or overhaul the hull underwater, so as to solve the difficulty of repairing large ships without large dock, and can be carried out simultaneously with loading and unloading of goods, so as to reduce the loss of suspension caused by docking; ⑤ Use alkaline solution to remove grease on mechanical and electrical equipment, use acidic solution to remove scale, and use neutral solution to clean electrical appliances, thus greatly improving the cleaning efficiency; ⑥ Take the method of repairing large parts such as crankshafts, shafting and rudder stock on board or in the dock without dismantling them to the workshop. ⑦ Specialized repair shall be carried out for precision parts such as automation devices, governors, turbochargers, etc; ⑧ The small and medium-sized parts shall be replaced in groups, and the replaced old parts shall be repaired according to the new standard before reuse.