Cold drawn, Peeled or Turned Ground and Polished Steel Bar
Peeled or turned steel bar is produced by peeling or turning from Hot Rolled Steel Bar. Our advantages and more services of Cold Drawn Steel Round Bar includes:
1) Wide range of diameters from 20mm to 150mm
2) Customized Length from 100mm to 12000mm
3) Good surface roughness: 0.4um to 1.6um
4) Good straightness: 0.5mm/m to 2mm/m
5) Good roundness: 80% of diameter tolerance
6) Diameter tolerance: -0.02mm to -0.1mm / h9, h10, h11
7) Matched further processing: Grinding, polishing, straightening
8) Anti-rusty package
9) Full sets of testing equipment: Surface, Dimenstion. Mechanical properties testing
10) Fast delivery time
Turned and polished Steel Bar,Turned Ground and Polished Steel Round Bar,Centerless Ground Shaft,Ground and Polished Round Steel Bar, Peeled Ground and Polished Round Steel Bar SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.sdthreadedrods.com
For the future development of the automotive urea market, Wu Jiangtao, general manager of Sichuan Meifengjialan Environmental Protection Co., Ltd. believes that with the deep implementation of the National IV emission regulations, the main demand for vehicle urea may be concentrated in the field of heavy trucks and long-distance passenger cars in the future. .
“According to our understanding, the price of bidding for urea for buses used by public transport groups is basically above 4,000 yuan/ton. Assuming that a bus consumes 1.5 tons per year, 1000 vehicles need 1,500 tons, and the total cost will be 600 yuan. This is a significant amount of expenditure for them, and the country does not currently have subsidies specifically for the use of urea for vehicles. In the absence of special financial support, vehicle urea is hard for the bus passenger transport group. The cost has increased, so they are still plagued by this issue. On the one hand, the National IV vehicle will need to add urea, and on the other hand it will also increase the cost burden," Wu Jiangtao said.
What's more, the use of public transport vehicles is not very good, despite the increase in hard costs. "The main problem with buses is that the average speed of vehicles is too low," Wu Jiangtao said. The operating conditions of urban public transport in China are not ideal, and the average speed is 30 to 40 km/h, which results in the temperature of the discharged exhaust gas not reaching the temperature required for the decomposition of urea for vehicles. "If urea can't be decomposed, then the urea solution that is being sprayed out is particularly vulnerable to blockages in the post-treatment system," Wu Jiangtao explained. He believes that with the increase in the use of State IV vehicles, more and more bus customers will encounter this problem.
Therefore, Wu Jiangtao believes that the use of urea for state IV-emitting buses is very unsatisfactory. In addition, the national energy conservation and environmental protection situation and the need for urban air pollution control will force buses to increasingly turn to natural gas buses and buses. New energy bus. Judging from the country's overall market, the most important vehicle urea market in China will eventually be concentrated in the field of heavy trucks and long-distance passenger cars.
Qin Jian, general manager of Jiangsu Kelansu Automotive Environmental Protection Technology Co., Ltd., is optimistic about the needs of the public transport sector: “From the current point of view, the bus market is still a relatively stable market. At low temperatures, vehicle urea consumption is actually small. For example, the use of vehicles in the north will be smaller in the winter, but from the perspective of customer feedback, the current state IV diesel bus is still running.†On the other hand, Qin Jian believes that although the use of urea for public transport Businesses mean an increase in costs, but urea costs account for a small proportion of vehicle operating costs when compared to fuel costs. Of course, from the perspective of the economy of fuel vehicles and natural gas vehicles, there is a trend for public transport companies to develop natural gas vehicles. However, natural gas vehicles are not suitable for all regions. Gas vehicles are a relatively popular trend at present, but with the price of gas Rising and emission regulations continue to tighten, and how the future trend remains to be seen. “In phase IV, it may be that gas vehicles have advantages, but in the future, around the more stringent national V, national VI standards, it may not have obvious advantages. And around the more stringent emission regulations, SCR technology route is still needed, then the urea The demand still exists." He analyzed.
Qin Jian further stated that at present, some short-distance passenger transport in China uses gas buses, long-distance passenger transport is still dominated by traditional diesel vehicles, and gas heavy trucks also account for a certain percentage in trucks. “Although in light, medium and heavy trucks, buses, passenger vehicles and even construction machinery and other fields, natural gas vehicles account for a certain percentage, and at the same time, the proportion of new energy buses in the bus sector is also increasing, and these will be for the National IV diesel vehicles. The use of urea demand has a certain impact, but the use of gas vehicles is limited, and the operational stability and cost of new energy vehicles have yet to be improved, and they are currently mainly promoted by the government. For example, the promotion technology of the national “Ten Thousand Cities†is not very satisfactory. Currently, it is in a state of stagnation. Therefore, the traditional diesel engine is still the main force of the current market, and will be the main force of the market in a certain period of time. "So I believe that the vehicle urea market still has great potential and demand. â€