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Three methods of ship stern tube concentricity measurement

Three methods of ship stern tube concentricity measurement

The traditional cable method is relatively close to the measurement principle of coaxiality. Its side is intuitive and easy to understand. The cost of measuring tooling is low, the measurement accuracy is controllable, and it is suitable for stern tubes of various sizes. However, this measurement method requires high operation level for measuring this, and it is easy to generate measurement errors due to considered factors.

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2023

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Function description of each component inside the air compressor

Function description of each component inside the air compressor

The air filter is a dry paper filter with a fine pore size of about 5μm. Its main function is to filter out dust in the air to avoid premature wear of the screw rotor, premature blockage of the oil filter and the oil separator. Usually every 500 hours of work, should be removed to clear the surface of the dust. The method of removal is to use low-pressure air to blow the dust from the inside out.

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2023

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Nautical Science Popularization -- Rudder Blades of Ancient Chinese Ships

Nautical Science Popularization -- Rudder Blades of Ancient Chinese Ships

Ancient Chinese ancestors had long known to use the rudder to change the course of a ship. The rudder is a stern steering tool used to control the course. It evolved from wood pulp and went through the stages of technological evolution such as pulp support, towing rudder and shaft rudder.

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2023

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Fault Analysis and Solution of Frequent Load and Unload of Compressor

Fault Analysis and Solution of Frequent Load and Unload of Compressor

With the development of science and technology, air compressor as an important power equipment, is widely used in machinery, metallurgy, building materials, electronic power, chemical industry, food, textile and many other industrial fields.

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2024

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04

Understand the working principle of various motors

Understand the working principle of various motors

Motor (commonly known as "motor") refers to an electromagnetic device that converts or transmits electric energy according to the law of electromagnetic induction. It is indicated by the letter M in the circuit. Its main function is to generate driving torque, as a power source for electrical appliances or various machinery. The generator is represented in the circuit by the letter G. Its main function is to convert electrical energy into mechanical energy. The motor consists essentially of an electromagnet winding or distributed stator winding for producing a magnetic field and a rotating armature or rotor and other accessories. Under the action of the rotating magnetic field of the stator winding, it has a current in the armature squirrel cage aluminum frame and is rotated by the action of the magnetic field.

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