HS code-based re-exports in free zones

Car engine lubrication method,HS code-based re-exports in free zones make your car healthier Engine is the heart of the car, as the saying goes: "A good heart is a healthy car Body." And the lubrication method of the engine is an important indicator. The lubrication method of automobile engine is directly related to important factors such as engine durability, fuel consumption rate and emission pollution. Before understanding the lubrication method of automobile engines, it is necessary to understand the function of engine lubrication: lubricating oil forms a film inside the engine, separating the metal surface with rough friction to reduce the contact area between each other and greatly reduce friction loss. At the same time, it also plays the role of heat dissipation, cleaning, sealing, etc., so lubrication Oil is especially important in the car body.There are three basic lubrication methods for modern cars: 1. Dry oil lubrication Dry oil lubrication refers to the injection of special lubricating oil by plasma spraying on the surface of some special polymers or metals to dilute the oil film to a single molecular layer of 1-50 nanometers. This mode will not cause oil pollution and volatilization, and at the same time, it pursues the toughness and noise reduction effects brought by the single molecular layer, by With its characteristics of being able to adapt to a rotational speed range greater than 200℃ and more than 35,000 RPM, it is now widely used in high-speed electric vehicles, jewelry processing, hydrogen production and other industries. Two. Dry assembly lubrication Dry assembly lubrication is also known as oil-free lubrication. This method refers to the use of lubricating oil between the two contact surfaces and the use of some special coatings inside for lubrication. The advantages of this method are zero fuel consumption, long-term stability, and no pollution at the same time. The disadvantage is that it has restrictions on the choice of materials, such as melting point, strength, etc.This method is widely used in the aerospace field, such as mold processing, high-temperature heat treatment and other fields. 3. Wet lubrication Wet lubrication refers to the formation of an oil film on the friction surface for lubrication after the lubricating oil is in contact with the parts. This method can flexibly design various engine cross-sections and viscosity of oil, which can make the engine maintain good oil film performance under different loads, and can also effectively heat and dissipate heat. The disadvantage is that it needs to change oil regularly, which is widely used in automobiles, aircraft, engineering machinery and other fields. How to choose a good lubricant? First of all, it is necessary to choose the lubricating oil suitable for the car model and the engine. Different cars have different mechanical materials and model requirements, and different engine performance may require different textures of lubricating oil to maintain the best condition. Secondly, it is necessary to choose a lubricating oil with good purity, functional stability, oxidation resistance and low volatility.This can not only ensure the stability of the lubrication effect, but also effectively ensure the smooth operation of the engine, and maintain a lower fuel consumption rate and lower emissions. It also guarantees the environment and driving safety, affecting the health of the body during the whole vehicle use. Finally, it is necessary to choose a reliable brand and model. The quality of the lubricating oil is related to the health of the whole engine. It is safest to choose a big brand and a well-known model. It is summarized that the lubrication method of the automobile engine affects not only the service life and stability of the engine, but also the impact on environmental pollution. Only by understanding the basic methods of engine lubrication and choosing the right lubricating oil can the car have better comprehensive performance and make the vehicle healthier, more efficient and more environmentally friendly.

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