mingming
Motor vehicles are the pillar industries of modern industrial society, as technology development and increasing environmental pressures, Hyundai Motor development is undergoing profound changes. A car-based transportation emissions of carbon dioxide accounts for about one quarter of global emissions, greenhouse Zaiquanshijie Gaoduozhongshi mankind today is energy-saving environmental protection requirements on the car Biande harsh, iron and steel industry to harness and adapt to the Xuqiu high-quality steel. Because modern cars on the additional safety and comfort requirements are high, the average weight of passenger cars increased weight. If the car manufacturers want to meet the Governments in the development of mandatory emission standards, this trend can not continue. Total vehicle weight of steel, as about 70% of the primary materials, have to lightweight, high strength, easy processing, high-precision direction. In the energy-saving, environmental protection, automotive manufacturing and the special safety requirements. Current national production of lightweight vehicles on the attempt, mainly in the use of light metals, high strength steel and composite materials instead of traditional steel parts. Back in 2001, representing 18 countries around the world in 35 steel companies launched a consortium of international plans, objectives, in the absence of additional costs, without compromising vehicle performance, reduce the number automobile steel weight. Shows, auto steel industry agreed to become the pursuit of innovation. Faced with this new trend, steel, automotive industry alliance as soon as possible, both to strengthen ties jointly developed automotive steel. While the automobile industry in the vehicle structure and function of the design should be a major breakthrough, with a brand new car design, and continuously meet the energy saving. Varieties include steel, high-quality steel, section steel, strip steel, steel, metal products. Automobile industry, on a higher steel demand. Automobile steel sheet in (including hot-rolled steel, cold rolled and coated steel plate) is the most important raw material production cars, the developed countries more than 50% of panel production is supplied to the automobile factory. Currently, the global automotive industry in the global steel consumption has exceeded 100 million tons, with production of automotive steel parts are consumed, the global consumption of steel per year only on the more than 150 million tons. Abbreviation used in the manufacture of steel plates for automobile automotive, manufacturing a car is about the use of thin steel plate 600 ~ 800kg. According to the use of vehicle plate is exposed position, it can be divided into motor vehicle plates and panels. Among them, the motor vehicle board panel is the most difficult products in the production, usually in the German standard called “O5″ board, which requires no surface defects, but also to the general good required automobile plate stamping formability, weldability and corrosion resistance. To solve the corrosion problem, the new coating steel came into being. At present, the automotive industry provides corrosion resistance coating on external surface of the car is 5 years, body perforation corrosion for 10 years. To ensure the safety of persons traveling, to test the safety car as the main means of damaging the real vehicle frontal crash test is a common international practice, which tests the performance of the car plate, car plate on the quality of the more stringent requirements. Although the new car will replace part of the steel, but steel for a long period of time is still the most important raw materials, vehicles, and long-term stability in the proportion of 60 to 70%. Steel is automotive safety, the key to longevity and low cost. The current global automotive industry is actively seeking ways to reduce vehicle weight and means. Automobile industry to reduce vehicle weight of advanced high strength steel shell and the main structural parts for automotive, and competition, and light metal. Meanwhile, the sandwich plate is to reduce vehicle weight to improve the stiffness of an alternative material selection.
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