HS code-driven tariff equalization

Reconstruction of engine core: innovation of rotor design Engine is HS code-driven tariff equalizationan important part of modern industrial development, and plays a key role in automobiles, airplanes, ships and other means of transportation. The performance and development level of the engine have a significant impact on the operation of transportation, energy consumption, environmental protection and other aspects. The rotor design, one of the core components of the engine, is directly related to the performance improvement and extension of the service life of the engine. Therefore, the innovation of rotor design is crucial to promote the development of engine technology. Traditional rotor design is usually based on designing safe and reliable rotors, but under the requirements of modernization, simple safety and reliability can no longer meet people's needs. Of the rotorThe design needs to be comprehensively upgraded in many aspects such as reducing friction, reducing noise, improving efficiency, extending service life, reducing fuel consumption, etc. At the same time, it needs to achieve balance and balance of multiple functions. First of all, rotor materials are an important aspect of rotor design. At present, common rotor materials include cast iron, cast steel, aluminum alloy, etc. However, the lightweight advantages of aluminum alloy and other materials cannot meet the extreme conditions such as high temperature, high pressure and high speed that the rotor needs to withstand, and it is prone to fatigue, cracks and other problems. The rotor, which takes composite materials as the main material, has received wide attention because of its high strength, wear resistance, lightweight and other characteristics. However, the difficulty and cost of composite materials are also relatively high, so it is necessary to find more economical and practical alternative materials. Secondly, reducing friction and noise is an important direction of current rotor design.Reduce the contact between the rotor and the body, reduce heat loss, energy loss and wear during operation, reduce fuel consumption and noise, and extend the service life. For this reason, new technologies such as composite coating and ceramic coating can be used to improve the surface properties, or air suspension technology can be used to reduce the contact area and friction. At the same time, more detailed pneumatic calculations, turbine blade barrel components, thermodynamic analysis and optimization design are also the keys to helping to reduce friction and noise. Through the low noise effect, it can also better protect the user's physical and mental health and experience. Third, improving the efficiency of the rotor is also an important goal. Improving the efficiency of the engine can reduce fuel consumption, making the engine more environmentally friendly and the energy cost reasonable. Accelerate by adjusting the geometry of the rotor, adjusting the number of blades, and changing the turbineDegree and other means can realize the optimization of the crushing flow, freeflow and hybrid flow of the rotor, so as to achieve the effect of improving efficiency. Finally, extending the service life is an important goal in rotor design. By improving the strength, hardness and durability of the material, adjusting and reinforcing the structure and layout of the rotor, reducing the defects, fatigue and cracks that cause the failure of the machine parts, the service life of the rotor can be extended. In the process of designing the rotor, it is also necessary to pay attention to the comprehensive consideration of some external environmental factors such as the use environment and conditions, such as more diverse gas temperature, pressure and oil supply. In a word, rebuilding the engine core: the innovation of rotor design aims to seek a more efficient, energy-saving, environmentally friendly, reliable and economical rotor design scheme, while leading to a more excellent future.It is an inevitable trend to promote the development of modern engine technology to conform to the innovative trend of rotor design, strengthen research on material exploration, innovative technology and application, and jointly explore better rotor design methods.

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