HS code-based negotiation with customs

Engine coating: The HS code-based negotiation with customsinevitable choice to improve fuel efficiency. With the rapid development and popularization of the automobile industry, more and more vehicles are running on the road, which has a significant impact on the environment, and the improvement of fuel efficiency has become a necessary condition for energy conservation and emission reduction. The engine is the core component of the automobile, and the improvement of fuel efficiency is inseparable from the optimization of the engine. As an emerging technology, engine coating is gradually being recognized by the automobile manufacturing industry and consumers, and has become an inevitable choice to improve fuel efficiency. I. The role of engine surface coating. The engine is the driving force of the car and the heart of the car. Its performance has a great impact on the performance and energy consumption of the car. There are two main factors for the energy consumption of the engine: first, thermal energy loss, and second, friction loss. And adding coating can improve the performance of the engine, thus reducing the occurrence of the above two losses.The main function of the engine surface coating is to enhance the friction coefficient and the anti-corrosion performance of the machine parts. At the same time, it can improve the thermal conductivity of the machine parts, increase the efficiency of the radiator, and improve the movement performance of the oil. By strengthening the heat conduction capacity and providing a smoother surface, the engine coating can reduce thermal energy loss and reduce the heat and wear caused by friction of the machine parts, thus saving fuel and improving fuel efficiency. II. Types and production methods of coating 1. Coating types At present, the main engine coatings include metal coating, ceramic coating, polymer coating, silicon carbide coating, etc. Different coatings have different performance advantages and can be applied to different parts and working conditions. Two. Production method Coating technology includes physical vapor deposition (PVD) and chemical vapor deposition (CVD). PVD is in vacuum.The metal is evaporated to form a coating layer by arc or evaporation, and different thicknesses can be obtained by external control in the process. CVD, on the other hand, decomposes gas into substances at high temperatures to form a solid reaction, thus forming a coating on the surface. III. Advantages of engine coating 1. Reduce thermal energy loss. By strengthening thermal conduction capacity and providing a smoother surface, coating coating can reduce thermal energy loss and reduce heat and wear caused by friction of machine parts, thus reducing fuel consumption and improving fuel efficiency. Two. The coating that reduces friction loss can enhance the hardness and durability of the metal surface, thus reducing the friction and wear of the machine parts. Reducing the friction between the machine parts can also improve the efficiency of oil pumps and turbines, and further increase the efficiency of fuel utilization. 3. Increase the anti-corrosion ability of parts, many engine partsDuring operation, corrosion and other phenomena will occur due to the influence of environmental factors such as high temperature and high pressure. Coating can effectively improve the corrosion resistance of these parts and make them stronger and more durable. Four. Extend the service life of the engine. In the process of automobile use, the engine is often affected by factors such as high temperature, high pressure and friction of air during circulation, which affects its service life. The coating can effectively enhance the hardness, wear resistance and durability of the engine material and extend the service life of the engine. IV. Application Prospects As a new technology, engine coating has a very broad application prospect. In the future, coating technology will become more mature, and the types and properties of coatings will become more diverse. For a long time, the automobile industry has continuously demanded energy and environmental protection requirements., will promote the development of engine coating technology, improve fuel efficiency, reduce energy consumption and emissions, and make greater contributions to the sustainable development of the whole society and human environment. In a word, engine coating technology is one of the hot spots of many researches at present. Its superiority has been recognized by many professionals, and it can be expected to be more widely applied and explored in the future. In the future, we will also usher in a more environmentally friendly automobile world, supported by reliable, durable and efficient engine coating technology, and truly achieve many goals such as "intelligence, comfort and environmental protection".

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