On January 5, 2012, the Ministry of Industry and Information Technology issued a notice requesting that dangerous goods vehicles with a total mass of more than 12 tons should be equipped with retarders or other auxiliary braking devices. As soon as the notice came out, there was a lot of discussion about the “truck installation retarder†in the public opinion. Experts and industry insiders asked whether trucks should install retarders and retarders for truck users. A different point of view. Retarder is an auxiliary system for car braking. When the car is decelerating or down a long slope, the retarder is enabled to decelerate smoothly, avoiding wear and heat caused by the use of brakes. There are mainly two types of retarders, eddy current retarder and hydraulic retarder. The retarder plays a good auxiliary role in the braking of the truck, especially in areas with high mountain or slope. Some experts stated that the retarder is currently the best auxiliary brake device. The role of other auxiliary brake devices is relatively limited with respect to the retarder, and it is limited to work in certain specific situations. For example, the exhaust brake has a poor braking effect. Its operating principle is to block the engine exhaust port, increase the pressure, and cause the engine speed to drop to brake. However, the gas tightness of the engine is not very good, the air pressure is limited, and the braking torque that can be generated is relatively small. Therefore, if a truck has a retarder, there is no need to install an exhaust brake. Of course, exhaust brakes have a very low cost, that is, installing a disc valve at the exhaust port, and installing one will not increase the cost. If the user wants to obtain double insurance, it is safe. Taylor Micro Retarder FN83.00 Currently in China, retarders are mainly used in large passenger vehicles and are not widely used in trucks. From analysis, there are mainly the following reasons that the retarder is difficult to promote on trucks: The first is that national laws and regulations have clear requirements for the safety of passenger cars, while trucks do not have equipment that requires safety devices such as retarders. The second is that the price of trucks is lower than that of buses, but the need for retarders is higher than that of buses. Therefore, the price of the retarder accounts for the proportion of the entire vehicle price above the passenger car. From a cost perspective, some truck users are deterred from retarders. The third is that the retarder and overloaded truck are difficult to match. In China, heavy trucks are generally overloaded, and the retarder is designed based on the rated load. Once the truck is overloaded, the retarder's role is compromised. Fourth, the lightweighting of trucks is a trend in the development of trucks. The weight of retarders is very heavy, which has increased truck weight by about one ton. However, more and more expressways nowadays, the speed of heavy-duty trucks is getting faster and faster, and the number of users in mountainous areas is also obviously increased. The installation of retarders can better guarantee the safety of vehicles, and can further improve the quality of JAC heavy trucks. Currently, China's heavy truck companies do not have many retarders installed, but as the 2012 version of the GB7258 standard is formally implemented on September 1, more and more trucks with retarders will be installed. Internationally, trucks are installed. The retarder is bound to be the general trend, and Tellema eddy current retarder, as the world's first retarder brand, also hopes to serve as a pioneer in guiding China's truck installation retarder, and make due contribution to China’s truck safety. contribution. For more information on Tellabs Retarder, please click: http:// Cheep Welding Accessories,Hot Sale Welder,Welding Accessories,Welder Xingyu Welding Equipment Co.,Ltd. , http://www.rqwelding.com
Truck mounting retarder is the trend