Looking at the world, smart cities have become hot words. In foreign countries, the global information wave has pushed information technology to change urban construction. More than 200 cities around the world are developing smart cities. Domestically, smart cities are gradually entering the fast lane of development. Shanghai, Beijing, Guangzhou, Ningbo, Wuxi, Nanjing, etc. have launched smart city strategies. As one of the best entrances to smart cities, the importance of smart streetlights in the construction of smart cities is self-evident. Wireless Wi-Fi coverage, charging piles, data monitoring, environmental monitoring, light pole screens, underground pipe network monitoring, urban flood warnings, regional noise monitoring, and citizen emergency alarms can all be realized by relying on LED street lights and intelligent control platforms. There is no doubt that a smart streetlight war is about to start. Huawei ZTE cuts into LED street lights into a smart city breakthrough. The hot spots in the recent smart cities are that Huawei and ZTE are both high-profile and cut into the field of smart street lights. In mid-March, Huawei unveiled the first multi-level intelligent control lighting Internet of Things solution at CeBIT 2016, the world's largest ICT technology exhibition. It took the urban street lighting industry as an entry point and entered the field of intelligent lighting. At the same time, ZTE also announced the BluePillar smart street lighting solution as an important place for its smart city strategy. In order to seize the cusp of smart cities, the two giants in the communication industry have almost no choice of hot smart homes as the entrance, but the first place in the smart street lighting of smart cities, which shows that smart street lights have become a big city of smart cities. Breakthrough. According to statistics, at present, China has 95% of sub-provincial cities and 76% of prefecture-level cities, and a total of more than 500 cities have proposed to build smart cities. As the smart city is still in its infancy, the system construction is too complicated, so the city intelligent street lamp project is undoubtedly the best place to go. As an important carrier of smart city construction, smart street lights will also play a greater role in the integration of urban street lights as the port of the Internet of Things, and make the construction of smart cities more realistic and better able to land. Indeed, the city has a large number of street lights. On the main road of the city, there is a street lamp every 30-50 meters, evenly distributed. As the most dense urban infrastructure, street lamps are no longer a simple lighting tool. For intelligent street lamps, Philips has also proposed the concept of intelligent interconnected lighting: street lights are no longer just light poles and lamp heads, they may become sculptures of cities; street lights no longer only solve lighting problems, they may become carriers of smart cities and smart traffic for transmission. Information and data to reduce the various types of monitors erected by urban and rural areas along the urban roads and enhance the overall image of the city. As the best carrier of intelligent lighting, the importance of LED lighting in the construction of smart cities is obvious. LED smart street lamps have become a major trend in urbanization construction. With the cost reduction and technology improvement in the future, LED smart street lamps will promote the rapid development of urban intelligent lighting in the construction of smart cities and become the focus of smart cities. Zhang Huajian, deputy general manager of Infineon Electronics, believes. Under the strong support of relevant government policies and the transformation of the LED industry, LED smart street lights will be further developed. It can be foreseen that LED street lights become the carrier of smart cities and intelligent transportation on the basis of intelligence.
Train Piston Pin, a cylindrical pin mounted on the skirt of the piston, passes through the small hole in the middle of the connecting rod and is used to connect the piston and the connecting rod, passing the gas force on the piston to the connecting rod. It is usually made of high quality alloy steel and made hollow.
Train Piston Pin materials are generally low carbon steel or low carbon alloy steel, such as 20, 20 mn, 15Cr, 20 cr or 20 MNV. The outer surface is hardened by carburizing and then refined and polished. This not only improves the surface hardness and abrasion resistance, but also ensures high strength and impact toughness.
Train Piston Pin
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