On the morning of the 24th, the 3rd World Metropolitan Transportation Development Forum was held at the Beijing National Convention Center. According to Rong Jun, spokesman of the Beijing Municipal Transportation Commission, in the future, the city will insist on using laws, science and technology, economic means, and appropriate administrative measures to alleviate traffic congestion.
　 Regulation: the number of passenger car indicators will drop again
According to the "Beijing Clean Air Action Plan (2013-2017) Key Task Decomposition Measures", Beijing will guide the reduction of vehicle use intensity. It is planned that the city's motor vehicle ownership will be controlled within 6 million vehicles by the end of 2017, thus reducing vehicle pollution emissions. . This also means that in the three years from 2018 to 2020, Beijing's motor vehicles will grow at a rate of 100,000 vehicles per year, totaling 300,000.
At present, the annual quota of small passenger car indicators and allocation ratio of small passenger cars in Beijing is 150,000, including 90,000 ordinary indicators and 60,000 new energy indicators. This means that since 2018, the Beijing passenger car index will be compressed again.
Tomorrow, the Beijing Small Bus Indicator Management System will announce the results of the application review of the small passenger car index. The reporter learned that in August this year, this year's new energy vehicle indicators have been robbed, and the rate of individual ordinary passenger car indicators has reached a new low.
　　 Construction: 4 fast roads start in the year
According to the traffic department news, the Beijing city rapid route consists of 4 loop lines and 17 radiation lines. The total length of the road network is about 399 kilometers, and 91.7% has been built. At present, except for the second phase of Guangqu Road, which was opened to traffic at the end of September, Xiwai Street, Yaojiayuan Road, Jingmi Road and Lize Road are still under construction and are expected to start construction within the year.
Among them, Xiwai Street West Extension is the expressway that leads from Xizhimen. Xiwai Street will arrive at the West Fifth Ring Road. According to the plan announced by the Municipal Public Company, the west extension project of Xiwai Street will start construction within the year, and the construction period is expected to be needed. Two or three years.
Lize Road from the second ring of Caihuqiao Bridge to the Sanhuan Lize Bridge, will start in December this year to set up the city expressway, to achieve a fast arrival without traffic lights.
Yaojiayuan Road Pingfang Bridge section to Changhong Bridge Section has also been changed to expressway, Airport 2 Expressway can directly lead to the Third Ring Road, the construction plan is fine-tuned, and the exit of the city meets the elevated frame to avoid the traffic lights, and the city will be fast from the fourth ring to the third ring. The road was “downgraded†and still set traffic lights.
Jingmi Road will be upgraded to a fast road by means of a viaduct, and the airport will add another expressway to Beijing.
　　 Data: Green travel will reach 75%
The development of public transportation and the promotion of green travel have become a major direction for the city's future transportation development. However, according to the data released by the transportation department, the black road section with a full load rate of more than 120% of the city's rail transit accounted for 7.38% of the total mileage during the morning peak period on Monday, September 21, 2015. Among them, the yellow line—the Chaoyangmen and the Batong line of the sixth line Communication University - Sihui East, Line 10 Shuangjing - Guomao, Changping Line Zhu Xinzhuang - Xi Erqi, etc. belong to the black section. The full load rate exceeds 100% and the red road segment accounts for 8.5% of the total mileage.
In addition, the traffic index published by the transportation department shows that the city's traffic index has dropped from 6.1 in 2010 to 5.5 in 2014. Since 2015, the index has increased due to various factors such as network car and oil price reduction. In order to alleviate traffic congestion, the transportation department said that in 2020, the proportion of green travel modes (public transportation + bicycle + walking) in the city center will reach 75%. By 2017, the total fuel consumption of vehicles will be reduced by 5% compared with the overall level in 2012. Total pollutant emissions were reduced by 25% compared to 2012.
There are two principal neodymium magnet manufacturing methods:
ï‚·Classical powder metallurgy or sintered magnet process
ï‚·Rapid solidification or bonded magnet process
Bonded NdFeB Magnet is made by evenly mixing neodymium iron boron powder with resin, plastics and low melting point metal and so oncaking agents, then made the boron permanent magnet of compound neodymium iron by methods such as compressing, pushing or injecting shaping. The products take shape once, do not need processing again and can be made into various complicated forms derectly. All directions of the bonded NdFeB magnet are magnetic, and can be processed into compression moulds and injetion moulds.
Bonded NdFeB Magnets are prepared by melt spinning a thin ribbon of the NdFeB alloy. The ribbon contains randomly oriented Nd2Fe14B nano-scale grains. This ribbon is then pulverized into particles, mixed with a polymer, and either compression- or injection-molded into bonded magnets. Bonded magnets offer less flux intensity than sintered magnets, but can be net-shape formed into intricately shaped parts, as is typical with Halbach arrays or arcs, trapezoids and other shapes and assemblies (e.g. Pot Magnets, Separator Grids, etc.). There are approximately 5,500 tons of Neo bonded magnets produced each year. In addition, it is possible to hot-press the melt spun nanocrystalline particles into fully dense isotropic magnets, and then upset-forge or back-extrude these into high-energy anisotropic magnets.
Bonded magnets can be made from either hard ferrite materials or rare earth magnetic powder. They are manufactured using both injection molding and compression bonding techniques which are fully automated and are particularly suitable for high volume production.
Bonded neo powder is incorporated into numerous end market applications that utilize bonded neo magnets. These products are primarily motors and sensors used in a range of products, including computer and office equipment (e.g., hard disk drives and optical disk drive motors and fax, copier and printer stepper motors), consumer electronics (e.g., personal video recorders and mp3 music players), automotive and industrial applications (e.g., instrument panel motors, seat motors andair bag sensors) and home ventilation systems (e.g., ceiling fans).
Application of Bonded Neodymium magnets:
•Magnetic separators
•Microphone assemblies
•Servo motors
•DC motors (automotive starters) and other motors
•Meters
•Odometer
•Sensors
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