After the issuance of the Highway Safety Protection Ordinance, industry insiders believe that if implemented strictly, it may be possible to curb intensified overloading and thus change the market demand for trucks. In the past, popular trucks that could be used for overloading had the potential to become illegal products and even exit the market. In response, heavy-duty truck manufacturers are actively preparing to come up with product transformation programs to cope with the market's possible changes in the demand for trucks.
Heavy truck companies to speed up the transformation of products so that it can pull down more goods without overloading becomes a critical issue. The application of lightweight technology can significantly reduce the weight of trucks without reducing the volume of cargo. Lightweight technology is a systematic project, and the correct use of lightweight technology can reduce the weight without affecting the performance of the vehicle. Nowadays, all heavy truck companies are advancing lightweighting. For example, China National Heavy Duty Truck adopts aluminum alloy transmissions, Shaanxi Automobile adopts a lightweight frame, and SAIC Iveco Hongyan adopts a thin spring with variable cross-section, which is a typical application of lightweight technology. The "Regulations" are strictly enforced and will accelerate the application of lightweight technologies.
Although light weight technology plays an important role in reducing the weight of heavy trucks, trucks need to adapt to the “Regulations†and do not need to spend too much effort on lightweighting. Because even if the Steyr heavy truck was introduced more than 20 years ago, the manufacturing technology of that year and the automotive steel used that year also met the requirements of the Regulations.
Reducing axle and frame steel is the most realistic way to reduce weight. Many trucks are now overloaded and each axle is made of thick steel. If it is not overloaded, each axle can save half of the steel. A few axles can reduce a lot of weight. The more axles, the more weight reduction, which greatly reduces the weight of the vehicle. The frame can be reduced by 20% without overloading, and the commonly used double-layer frame can also be changed to a single-layer frame.
The transformation of axles and frames is the most realistic way to adapt trucks to the requirements of the Regulations. If you want to change the cab and chassis, you must change the entire vehicle and take a long time. It is better to directly remodel the axle and frame. save time and energy. The basic approach for the transformation of axles is to reduce the amount of steel used and develop lightweight axles based on actual needs. In addition to reducing steel, the frame can also be lightweight steel.
Although the transmission shaft has limited impact on the dead weight of the heavy truck, it is also an influencing factor. If it is not overloaded, a 150 mm diameter drive shaft for trucks is a waste. In general, no advanced technology is applied. As long as the vehicle is not overloaded, a diameter of 130 mm for the drive shaft is sufficient. The transmission shaft is not a key component of the weight reduction reconstruction, because companies will generally have a variety of transmission shaft specifications, in the future production, according to the actual needs of smaller diameter can be used.
Overloaded vehicles generally use reinforced tires and need to add a layer of steel rims. Otherwise, the tires cannot be overloaded when overloaded. Vehicles that do not overload do not need to reinforce tires. Using vacuum tires and ultra-wide tires to reduce their own weight, compared with the traditional tires, vacuum tires are not only no inner tube, but also the wheel structure changes, the weight decreases. The heavy-duty driving wheels generally use double tires. If they are changed to ultra-wide single tires, the number of tires can be reduced. The ground area of ​​the ultra-wide single tire is not smaller than that of the double tires, and in addition to reducing the self-weight, the running stability can be improved, and the tire-tipping phenomenon of the dual tires can be avoided.
Component optimization is also an effective way to reduce the dead weight of heavy trucks. The use of parts in the punched and welded structure is limited by materials and manufacturing processes. The dimensions of all parts can only be the same thickness. In order to ensure the overall strength and stiffness, the punched and welded parts are often heavy. The optimized components can be analyzed by finite element analysis of the computer to design complex unequal thickness and variable cross-section structures according to the force conditions of each part. Under the premise of ensuring sufficient strength, the local unnecessary thickness can be reduced to the maximum extent, thereby reducing zero. Component weight. In addition, by integrating the functions of parts and reducing the number of parts, multiple parts can be integrated to realize the multifunctionality of parts and components, and the structure can be compact. This can also reduce the self-weight of trucks to some extent.
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The main characteristic of Ceramic Plate and blcok will as following:
product name
ceramic plate and block
material
zirconia ,alumina,silicon nitride
color
white(ivory),yellow,black,blue and customized colar
size range
max 350 mm(L)*350 mm(W)*40 mm(T)
surface roughness
max RA 0.05 um
tolerance
+/-0.001 mm
max using temperature
alumina 2000℃,zirconia 1500℃
electric insulation
good insulator
corrosion resistance
excellent resistance to acid and alkali even in high temperature condition
hardness
HRA 85-91
The main raw material of the ceramic plate and block is alumina and zirconium oxide. The quality and purity of the raw powder directly influence the performance of the wear-resistant ceramic plate.
The color of 97% alumina ceramic plate is white, and 99% alumina ceramic plate is light yellow, and the surface of good quality ceramic plate will appear the texture of jade.
Ceramic Plate And Block
Ceramic Plate,High Temperature Ceramic Block,Porous Ceramic Block,Machining Ceramic Block
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