Seamless steel pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow - liquids and gases (fluids), slurries, powders and masses of small solids.
Hot rolled seamless steel pipe deformation process can be summarized as three stages: extension, perforation and finishing. Hot rolled seamless steel pipes is relative to the cold-rolled, cold rolling is below the recrystallization temperature of the rolling and hot rolled is carried out at above the recrystallization temperature of the rolling. Hot rolled seamless steel pipe can damage the refinement of the crystal grains of the steel, cast microstructure of the steel ingot and eliminate the defects of the microstructure so that the the steel organization compacting, improves the mechanical properties. This improvement is reflected in the rolling direction so that the steel is no longer at a certain extent isotropic; pouring the formation of bubbles, cracks and osteoporosis, under high pressure and temperature can also be welded together.
Hot Rolled Steel Pipes (Seamless Tube) in different size, specifications, grades & thickness as per the client's requirements. The range offered by tubes is available as per the international & national standard and can be available from us at affordable prices. These pipes are used in various application industry like shipbuilding, power plants, oil and gas, automotive, sugar mills and distilleries, cement and construction industries etc.
Steel Pipe,Seamless Pipe,Welded Pipe,Square Pipe,Round Pipe Tianjin Youfa Steel Co., Ltd , https://www.youfametal.com
Recently, the Ministry of Science and Technology held a symposium on the commercialization of new energy vehicles and explored the business model for the promotion and application of new energy vehicles in industries such as logistics and automobile time-sharing leasing. Following certain progress in urban public transport, new energy vehicles are expected to flex their muscles in more areas such as logistics and leasing.
When it comes to new energy vehicles, it is generally acknowledged as a good thing, energy saving, environmental protection, and low cost of keeping cars... a long list of advantages. But over the years, it has fallen into a situation of “wonderful applauseâ€. On the whole, new energy vehicles such as pure electric vehicles and hybrid vehicles basically only have breakthroughs in the public transport and rental sectors, and there are more and more cities that test the water and early adopters; while in the heavier areas of private cars, the government has Subsidies, companies are working hard, experts are appealing, but the majority of vehicles have weighed again and again. The vast majority still choose traditional fuel vehicles.
Where is the problem? From the economics of the incentive theory, if the new energy vehicles as the challenger of traditional fuel vehicles, then to allow consumers to abandon the fuel vehicles to electric vehicles, there must be enough "incentive" Caixing. At present, the biggest selling point for new energy vehicles is that they only have advantages in terms of environmental protection and use cost. From the perspective of price, ease of use, etc., compared with traditional fuel vehicles, they have weaknesses and are not enough to impress consumers.
The first is the price factor. Due to low output, lack of scale advantages, and high battery composition, new energy vehicles cannot match fuel vehicles on price. Even if there are various central and local subsidies, they are still at a disadvantage; a pure electric bus The price of the car is almost several times that of the fuel vehicle, and the use cost advantage brought by new energy is instantly offset. In addition, even if the owner does not consider the performance factors in terms of speed and failure rate, the ease of use of new energy vehicles is too low—they are not fully equipped with charging facilities, charging time is too long, and the mileage is too short. Let private owners “veto one vote.â€
Under the current technological conditions, it is not realistic for new energy vehicles to achieve a big change in ease of use. The batteries of new materials, such as graphene, which are expected by the people with large storage capacity and high charging efficiency, are still basically in the “legendâ€. In terms of prices, the current major capital of new energy vehicles and fuel vehicles is a financial subsidy, but we know that an industry cannot be subsidized forever because subsidy is the appropriate support and assistance in the initial stage of emerging industries. The financial funds spent on subsidies are actually the labor creation of the majority of residents. If an industry can never leave the state subsidies, can not turn to endogenous growth and then independently in the market tide, then this product is not only difficult to have real competitiveness, but also lost the significance and value of existence. Therefore, comprehensively, the development of new energy vehicles is a long way to go.
New energy vehicles represent the concept of green and low carbon, and they are also vehicles that are more in line with the long-term interests of mankind. Of course, they should grow. To gradually expand the new energy automobile industry, we hope to make continuous breakthroughs in technology on the one hand, and let revolutionary technologies such as graphene batteries come into reality from dreams as soon as possible; on the other hand, when the progress in private cars is slow, develop other The application field is not a breakthrough point. As demonstrated by the forum of the Ministry of Science and Technology, besides the bus industry, the large number of vehicles used for logistics and leasing, the conditions for building charging facilities, and the availability of new energy vehicles, are not only in the interest of the enterprise, In society can also play a role model.