Mild steel 1. Carbon Steel Sheet,Carbon Steel Sheet Metal,High Carbon Steel Plate,Carbon Sheet Metal Shandong Panhua Metal Material Co. LTD , https://www.panhuametal.com
Low carbon steel has a carbon content of 0.04-0.3% and is the most common grade of carbon steel. Mild steel is also considered low carbon steel because it is defined as having a low carbon content of 0.05 to 0.25%. Mild steel is malleable and highly malleable and can be used in automotive body parts, panels and wire products. At the high end of the low carbon range, with up to 1.5% manganese, mechanical properties are suitable for stampings, forgings, seamless tubes and boiler plates.
2. The medium carbon steel
The carbon content of medium carbon steel ranges from 0.31 to 0.6%, and the manganese content ranges from 0.6 to 1.65%. The steel can be heat treated and quenched to further adjust the microstructure and mechanical properties. Popular applications include shafts, axles, gears, rails, and railway wheels.
3, high carbon steel
High carbon steel has a carbon content of 0.6-1% and a manganese content of 0.3-0.9%. The characteristics of high carbon steel make it suitable for use as spring and high strength wire. These products shall not be welded unless a detailed heat treatment procedure is included in the welding procedure. High carbon steel is used for cutting tools, high strength wires and springs.
4, ultra-high carbon steel
Ultra-high carbon steels have a carbon content of 1.25-2% and are known as experimental alloys. Tempering can produce very hard steel, which is useful for applications such as cutting tools, axles or punches.
[China Instrument Network Instrumentation New Concept] When we mention NB-IoT technology, everyone may be “confusingâ€, but when it comes to the Internet of Things, it is certainly no stranger. NB-IoT narrow-band Internet of Things technology is a member of the mobile Internet of Things family. Its low power consumption and widely connected application scenario is one of the three major application scenarios of future 5G technologies and represents the future development trend.
It is understood that Yingtan has built three narrow-band Internet of Things covering the entire city, and is conducting a large-scale field test based on cities. Moving the Internet of Things makes this small southern city light the flame of dreams.
The Internet of Things Brings New Life Experience: The Narrowband Travel Case
Just download an app on your phone and the suitcase will automatically follow you. Once the distance from you exceeds the set value, the alarm system can also be triggered to perform remote switch bag operation...
In the open laboratory of the Yingtan Mobile Internet of Things Industrial Park in China, a narrow-band Internet of Things smart bag developed by Minnato Corporation is undergoing product upgrades. Chen Dongyun, the person in charge of the company, said that in addition to supporting traditional data transmission modes such as 4G and Bluetooth, the products under development have added support for NB-IoT technology. The NB-IoT technology is superior in signal transmission stability, chip battery power consumption, and the like.
Yingtan City Party Committee chief in charge said that in the Internet of Things era interconnected, items through the sensor openings "speak", while the traditional broadband network can not support a large number of sensors for data transmission, which requires a lower rate, wider coverage, more Low-power network, NB-IoT narrow band Internet of Things came into being.
Currently, the three major mobile, China Unicom, and telecom operators have invested 170 million yuan to build three NB-IoT networks in Yingtan and 962 NB-IoT base stations to achieve full coverage in urban areas, counties, and townships.
“Before we mass-produced 200 products and obtained a number of user experiences. We are improving the functions of narrow-band smart bags and are expected to officially enter the market by the end of the year.†Chen Dongyun said that Yingtan is currently the only NB-IoT fully-covered city in China. A good network environment has provided fertile ground for upstream and downstream enterprises in the industrial chain. Enterprises are now competing against each other to prepare for the future battle for NB-IoT blue ocean market.
Mobile Internet of Things Unleashes New Urban Management Efficiencies: Clearing Garbage Smarter
The mobile Internet of Things has changed not only in home life but also in urban management.
The integrated treatment of urban and rural rubbish has always faced difficult transportation problems, but it is no longer a difficult task in Yingtan. At the mouth of Tongjia Town, Yuehu District, Yingtan City, the reporter saw a “big guy†that looks like a beetle. It is an intelligent deep-buried trash can based on NB-IoT technology.
“In the past, sometimes garbage was not transported in time, and sometimes it was not carried away. The effectiveness of clearing and transport is not high. When the current trash can reaches 80% capacity, it will automatically send cell phone reminders to the town’s clearingmen to facilitate their arrangement. "The route of cleaning," said Kong Xianming, a cleaner in the village, said that in the past, the garbage was also susceptible to secondary pollution of the surrounding environment during the transit process. Today, the interior of the deep-buried trash can can be lifted to avoid pollution problems.
According to Jinlong Jin, an expert at the Beijing Research Institute of China Telecom, which is responsible for the development of intelligent garbage station modules, the narrow-band Internet of Things chip modules are compact and can facilitate the intelligent transformation of existing trash cans. In the future, Yingtan City will break the administrative restrictions and install 420 intelligent deep-buried garbage cans throughout the city.
Mobile Internet of Things applications are beginning to be used in urban management in all areas of Yingtan. For example, 171 NB-IoT intelligent parking spaces completed in the transformation of Longhushan Scenic Area, 576-inch NB-IoT intelligent street lights installed in Xinjiang New District, and Sanchuan Wisdom Technology Co., Ltd. installed 400 blocks without manual meter reading in three communities. NB-IoT water meter ... By the end of June, NB-IoT Open Labs had successfully hatched more than 30 kinds of application products, 15 of which were actually used, and the number of stable terminal connections was nearly 2,000.
It is reported that Yingtan has established a mobile Internet of Things (IoT) industry alliance with more than 140 domestic IoT leading enterprises and scientific research institutes to build a public service platform for enterprises.
“Yingtan is the first city in China to promote the application of narrow-band Internet of Things as a city development target.†Zhou Hongren, executive deputy director of the National Informatization Experts Advisory Committee and chairman of the Mobile Internet of Things Industry Alliance, said that there will be more quality resources. Gathered here, more narrow-band Internet of Things applications put into use.
The development of the Internet of Things allows the industry to be “fresherâ€: the layman can also scientifically grow vegetables
In the vegetable greenhouse of the Dengjiajing Rice Farm in Jiangxi Province, technician Peng Peiliang checked the operating status of several sensors. He said: “Two sensors inserted in the soil are used to record soil salinity and moisture in real time. Sensing equipment for monitoring air temperature, humidity, carbon dioxide content, light, and other information is also installed in the shed.†Using Narrowband Internet of Things The technological transformation of the Agricultural Internet of Things project was just launched on the Dengjiajing Rice Planting Farm, which became the country’s first NB-IoT agricultural demonstration application unit.
“In the future, even those who have not had planting experience, can choose the most suitable air, temperature, and time period for pesticide spraying, in order to achieve the best control effect.†Said Deng Gang’s party secretary of the Rice Kindergarten Wan Zicheng. The sensors convert the information in the planting area into more intuitive digital signals, allowing agricultural production to shift from "relying on experience" to "depending on science."
Copper processing and manufacturing is one of the main industries in Yingtan, and the desire for transformation and upgrading is strong. As a manufacturer of copper processing smart devices, Bao Jian, chairman of Jiangxi Kaishun Technology Co., Ltd., hopes to promote the industry's upgrade by building a smart device leasing platform. Under the leasing model, the copper processing company of the leasing production line does not have to bear the daily operation and maintenance costs of the production line, spare parts and warehousing, etc. It can also analyze the operation of the production line according to the data returned by the smart device and make timely adjustments to the problematic production line. Increase productivity.
"The original 3G network data transmission is not stable, and the traffic is expensive." Bao Jian said that the low power consumption and wide coverage of the NB-IoT technology have solved the problem. Processing equipment based on new technology research and development has been put into use at the end of April. The company smoothly transitioned from equipment manufacturers to platform service providers and will launch 10 narrow-band IOT copper processing lines in Yingtan during the year.
Wang Zhiliang, director of Beijing Institute of Internet of Things and professor at Beijing University of Science and Technology, is optimistic about the “cloud economy†behind NB-IoT technology. He believes that only the combination of big data, cloud platform, and the Internet of Things can truly bring benefits to enterprises. If you open up the data link of the production, warehousing, logistics, sales and other aspects of the company, you can save a lot of money for the company.
Wang Zhiliang believes that Yingtan is exploring the future of the narrow-band Internet of Things economy. Companies use Yingtan as a test and production base for narrowband applications, but the product market is global.
(Original title: A Mobile Internet of Things Application in a Small South City)