Automotive industry in China has experienced unprecedented rapid development, and automotive products are precisely the largest user of castings, China's huge market for automobiles, will make the demand for automotive castings increased significantly. Castings are one of the important components of automotive parts, an average of about 10-20% of the weight of each car parts for the casting products, such as casting car parts, casting components in automobile, casting rubber wheels, etc. are an important part of the car, the same about 20% of the castings are for the automotive industry every year. About 20% of the castings are produced for the automotive industry, that is, at present China's annual flow of about 5-6 million tonnes of castings to the automotive manufacturing and service industry.
Auto parts in many key parts are also manufactured by castings, some structurally complex auto parts such as engine block, cylinder head, etc., casting excellent moulding process is difficult to achieve other manufacturing methods, while casting material performance can meet the performance requirements of these parts, and low price, which is casting in the application of automotive parts and a fairly long time to continue to be The important reason. But castings in the application of automobiles are also facing various aspects of the test. Automotive lightweight, energy saving and environmental protection requirements, not only the use of aluminium-magnesium alloy to replace cast iron materials, some plastic parts, ceramic parts and other lightweight automotive castings are eating into the casting product position: Similarly, with the improvement of automotive performance and safety requirements, some products such as crankshafts and other forgings are also more and more manufacturing. Again, casting is an important industry of energy consumption and pollution, due to energy conservation and environmental protection requirements, as in developed countries, the social exclusion of the casting industry will be increasingly strong, the casting industry is facing enormous pressure. And cleaner casting production methods are not overnight can be achieved, and will bring increased costs, which is more we need to pay attention to.