Improve Operational Efficiency and Look at the Development of Trailers from Wuhan Auto Show
The die casting process involves the use of a furnace, metal, die casting machine, and die.
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Metal housings for a variety of appliances and equipment are often die cast.
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At the just-concluded Wuhan Auto Show, besides the trucks of the National IV, the trailer grabbed a lot of limelight to a certain extent. It can be said to be very conspicuous. The following Xiaobian will take everyone to look at the Wuhan Commercial Vehicle Show. What are the characteristics of the trailers on display? 
Lightweight: Aluminum alloy / large single tire / air suspension can not be less
Under the premise of today’s weight-based toll, light weight is a topic that can't be ignored whether it is the main vehicle or the trailer. At Wuhan Commercial Vehicle Show, light weight is also everywhere. The main vehicle is mainly aluminum alloy fuel tank, aluminum alloy. Gas tanks, aluminum alloy wheels, and airbag suspension applications. 
As regards the trailers, lighter weight is more obvious, and the light-weight design of high-strength steel trailers need not be mentioned. Look at the three main trailer exhibitors in Hall B, CIMC Booth, Changshu Shenyi, and Junlin Fulu Haofu. Basically, there are three common steel light weight trailers in CIMC. Other models have adopted lightweight materials such as aluminum alloys and composite panels more or less. 
An efficient logistics vehicle was also exhibited at the CIMC booth. The car adopts a carbon fiber box. The 9.6-meter carriage weighs only 1.6 tons. The chassis uses a through-beam design. With a thin carbon fiber cabin, the box volume reaches 64.6 cubic meters. It is more efficient to load and unload vehicles with hydraulic hoardings.
Chassis lightweight design is also everywhere, airbag suspension, aluminum alloy wheels, large single tires and other models on the overall image of the small car shopping tour show, there are nearly half of the models using these lightweight configurations, are participating models, Not worthy of these is not very cheap? How can there be "face"? Of course, when a user purchases a car model, it is still a large sum of money to weigh the lightweight of the "silver" in the pocket.
Specialization: Increased handling efficiency with side curtain/flying semitrailers
In developed countries such as Europe and the United States, the proportion of special-purpose vehicles accounts for more than 80% of commercial vehicles, while China’s current proportion is about 40%. The development prospect of China’s special-purpose vehicles is huge. Of course, the trailer is no exception. At present, China’s trailers are still in warehouses. Bars and other common trailers are the mainstays. Homogeneity is very serious and competition is becoming more and more intense. 
The powder material transportation vehicle and the tanker do not have much to say, their specialization is very high, the transportation medium is quite single, and the efficiency of loading and unloading is very high. However, users with very high one-time investment and ordinary users who do not have fixed sources of supply are generally hard to start and continue to make profits. At the Wuhan Auto Show on the CIMC booth, the four-axis aluminum alloy tanker used for export, as well as the refrigerated semi-trailer on the stand, all cost more than 500,000 yuan. 
In addition, the side curtain type, flying wing semi-trailer is a very good choice for some express logistics companies. At the Wuhan Auto Show, the three major trailer manufacturers exhibited by CIMC, Changshu Shenyi and Junlin Fulu were all flying-wing models. Flying-wing models did not say much about improving the efficiency of cargo handling. 
At the Scania booth, Scania teamed up with Changshu Shenyi's side curtain trailers to demonstrate the logistics concept of “Efficient Logistics Operations†and the fast operational flow in the dynamic demonstration area of ​​the auto show. The driver can easily open the side curtains of the trailer and handle it with a forklift. The cargo loaded on the 13-meter-side curtain-trailer took only 20 minutes to complete the unloading. It takes 2 hours of loading and unloading time compared to the traditional trailer, and it can be called a speed.
Reduced wind resistance: Trailer skirting products for trailers
In foreign countries, in addition to the main vehicle with diversion hood and side skirts, on the trailer, we can also see the chassis side skirts and tail covers of the trailers that reduce the drag coefficient. However, at home, the front top diversion hoods are still available. Just got attention, trailers with deflectors, shrouds are rare. 
At the Wuhan Commercial Vehicle Show in the exhibition booth, we also saw side skirt shroud products on a van semi-trailer. Modern fast-moving semi-trailers, such as driving at speeds of over 85 kilometers per hour, have nearly half of their driving resistance coming from air resistance. The use of deflectors and shrouds can effectively reduce the air resistance during high-speed driving and, to some extent, the economy of the entire vehicle.
Editor's Note: Increasing operational efficiency is the ultimate goal
From this Wuhan Commercial Vehicle Show, we can easily see that the use of aluminum alloy material has become quite common, CIMC has even tested the carbon fiber material, aluminum alloy wheels, large single tires, airbag suspension, etc. almost become the standard, lightweight trend Has become increasingly fierce; side curtain type, flying wing semi-trailer is conducive to greatly improve the handling efficiency; side skirt shroud products can also reduce fuel consumption to a certain extent.
However, in retrospect, the ultimate goal of lightweighting, specialization, and reduction of wind resistance is to increase operational efficiency and bring more economic benefits to users, no matter how the trailer is later developed, but it must be around bringing more users. The ultimate goal of this economic development is to develop.