Hot discussion of aluminum steel trailers: questioning not terrible technology is the key
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Recent talks on aluminum trailers have continued. Although many netizens acknowledged the many advantages of aluminum semi-trailers, they also raised a variety of questions and thought that aluminum semi-trailers are not as good as they have imagined. Not long ago, the Truck House Forum had a special discussion on the topic: “The automobile fighter is aluminum steel. ? "Aluminum trailers, steel trailers, Century PK", a heated discussion among many netizens attracted by the quote. Now the author makes a review of the major questions that people have questioned and invites the relevant technical staff to answer them one by one.
Question 1: Do not fuel economy by car weight, but engine performance?
Response: True, engine performance is indeed an important indicator of vehicle fuel economy. However, to achieve the utmost maximization of fuel economy is not only to improve the performance of the engine, but also to reduce the weight of the entire body parts. Lightweight vehicle to achieve energy-saving emission reduction effect. If the vehicle's vehicle weight is reduced by 10%, the fuel efficiency can be increased by 6%-8%. The future can not ignore any energy-saving technologies, each part of the energy-saving technology can change the effect of energy conservation. For example, one person not only has a good heart, but if he is fat and overweight, he is very strenuous in walking.
Question 2: The strength of aluminum semi-trailers is that they have no steel cars with high strength and strong bearing capacity.
Response: First, aluminum profiles have been widely used in ships, aerospace and other areas with very high strength indicators. The traditional semi-trailer is composed of large I-beam and channel steel bearing chassis. The system has a low stiffness and a large amount of elastic deformation at full load operation. The Tongtong Automobile Company adopts high-speed rail and aviation-grade aluminum extrusion molding, which has strong anti-upgrade capability. Both wheelbase and wheelbase are within the optimal range of the design, which effectively improves the stability and maneuverability of the vehicle. The technical parameters fully comply with national standards.
Question 3: Is the price of aluminum semi-trailers high, can it really produce better economic benefits than steel cars?
Response: Generally, an aluminum semi-trailer costs 8 to 150,000 yuan more than steel cars. A semi-trailer can save more than 3 tons of weight compared with similar steel cars, and can carry an average of 2.4 tons of cargo on a single basis. Calculated at a transport cost of 0.5 yuan per ton-km and 200,000 kilometers per year, each vehicle can increase annual revenue by 240,000 yuan. Long service life, 5-10 years longer than the use of steel vehicles. Moreover, it has strong corrosion resistance, high recycling rate, and comprehensive calculation of profit is very substantial.
Question 4: Are aluminum semi-trailers promising?
Response: First, the steel resources are slowly depleting, and aluminum is currently the best alternative resource in the future. In the future, more industries will surely appear aluminum. Aluminum alloy has a series of excellent characteristics, such as small density, light weight, high strength, good elasticity, good impact resistance, corrosion resistance, easy surface coloration, good processing and molding, recycling and recycling, etc. It is necessary in the automotive industry and other industries. Will be widely used. In many developed countries abroad, aluminum vehicles have become very popular, and the proportion has even reached more than 90%. And the country has been advocating the sustainable development of green, energy saving, emission reduction, and environmental protection! Aluminum trailers will be the trend of future development.