With the accelerating pace of economic development, national income continues to increase, people’s demand for materials has become increasingly strong, and the objective conditions of China’s vast territory and resources have prompted the rapid development of the logistics industry. At the same time, in recent years, the state’s investment in infrastructure construction has remained at a relatively high level. The construction of highways and county and village highways has also been effective, and the coverage of high-level road networks nationwide has gradually expanded. It also provides a boost to the development of the logistics industry.
However, we should note that the current level of development of China's logistics industry is still in its infancy. Among these, the development of trucks, the mainstay of logistics, is relatively good. However, in the development of efficient logistics, the whole industry still has a long way to go.
When it comes to the development of efficient logistics in trucks, we cannot but mention lightweighting. The concept of lightweighting originated first in motor sports. As the weight of the vehicle body is reduced, the power output from the engine can produce higher acceleration, the vehicle will have better maneuverability, and the acceleration performance at the start will be better, and the brake will be braked. The distance will be shortened accordingly.
At present, lightweighting is a hot topic in the commercial vehicle sector. According to research figures, if the vehicle's vehicle weight is reduced by 10%, the fuel efficiency can be increased by 6%-8%. The automobile body accounts for about 30% of the total mass of the car. Under no-load conditions, about 70% of the fuel consumption is spent on the body mass. Therefore, the lighter car body is significant for the vehicle's fuel economy, vehicle control stability, and collision safety. However, how to apply light weight to vehicles?
Lightweight promising application point <br> <br> and a lot lighter on the truck's point of application is very extensive. From the body, frame, cab, powertrain, transmission system and other aspects of lightweight upgrades and exploration. From the current point of view, it is precisely these directions that truck manufacturers have concentrated their efforts. All aluminum fuel tanks, wheels, plastic parts instead of metal cab parts, etc., some of the high-end is less leaf springs, but only light trucks can do this?
It is true that at present, all domestic commercial vehicle manufacturers will basically put lightweight implementation into the above aspects. This is due to two major reasons. First, China's current level of vehicle repair is still at a relatively backward stage. The lack of experience and technical strength in vehicle materials, structural design, etc. is not enough to get involved in more updated aspects. Second, it is due to the current suspension of logistics. Transport has not been promoted to a certain scale.
Maybe someone will ask what is the relationship between dumping and transport and lightweighting? What I want to say is that there are indeed.
As mentioned above, China's current emphasis on light weight is placed on the vehicle, and the degree of attention on the trailer is not very high. From the perspective of efficient logistics, the suspension of logistics is the development trend in the future, which is characterized by high efficiency and convenience. At the same time, the main upgrade points for lightweighting are also on the trailer.
At present, vehicle manufacturers have limited space for lifting lighter trucks in terms of opportunity technology and materials, and there is still room for improvement in the area of ​​trailers. In terms of current technology, technologies that can be adopted include lightweight body (such as aluminum alloy body), aluminum alloy wheels, large single tires, side curtain trailers, etc. The adoption of these technologies can highlight lightweight and efficient logistics. which performed.
The new materials are emerging composite materials still time <br> <br> It is understood that for some steel companies, automobile steel product sales currently account for about one third. In order to guarantee its market for automotive steels and respond to the impact of new materials, many steel companies are actively working with auto companies to develop a new generation of lightweight high-strength steels that are expected to compete with aluminum alloys, plastics, and carbon fiber composites.
In terms of the application of composite materials, the domestic composite materials industry is still relatively backward. In particular, high-end materials are completely monopolized and controlled by some foreign chemical manufacturers. They have mastered material design techniques, analytical techniques, and design techniques for parts and components. As high-end materials such as high-strength carbon fiber materials have long been monopolized by foreign technology, resulting in high product costs, some companies can only give up the use of high-end materials in automobiles.
The automotive industry tests the overall industrial level of a country. Metallurgical, chemical and other industries, mechanics, materials science and other disciplines are all affecting the development level of China's auto industry. In light of the specific development, I believe that car companies should take a long-term perspective, comprehensively analyze the characteristics of their products, and target them in order to actively and steadily develop R&D and production of lightweight products.
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