The Development Situation of Cast Steel Industry in The Future
China's annual output, 17 million tons of castings ranked first in the world and becomes global casting giant. Casting is one of the main method of obtaining mechanical products’ workblanks, as an important basis for the machinery manufacturing industry, which occupies a very important position in national economy. In numerous machineries, casting weight accounted for a high proportion in the whole weight.
For internal combustion engine, it takes 80%, 65% -80% for tractor, 50% -60% for hydraulic parts and pump machinery. Automobile industry, as the pillar industry of our country with vigorous developing rate, its heart part, namely vital parts of engine, such as cylinder block, cylinder head, crankshaft, cylinder, piston, intake pipe, exhaust pipe, etc, totally about eight parts are made by the steel casting manufacturers. Metallurgy, mine, power station and other key equipment need high-quality large-scale castings. Additionally, infrastructure and people's lives of national economy also needs lots of castings, for example, water (gas) pipes need a variety of high toughness ductile iron tube with various sizes.
However, the development of China cast steel industry mainly relies on cheap labor and domestic resources with a large number of energy or even excessive investment. With the rapid development and expanding scales of Chinese economy, its growth is increasingly constrained by domestic energy, resources and ecological environment. Meanwhile, the development of casting industry also confronts a series of crucial challenges. If continuing to run with extensive, high growth at the expense of resources and the environment in the past, it is certainly impracticable.
China has ranked first for six consecutive years as the world's largest castings production position. However, increased energy constraints affects Chinese casting industry, so as the increased environmental safety pressures, increased competition in the international foundry industry and strengthened protection of intellectual property situation. If from big country to strong one for Chinese casting industry, we have to reduce energy consumption by 20% and the pollutant emissions by 10%, within 5 years. Only by the development of circular economy that includes innovation and improving quality of people who occupied with casting and establishing a harmonious manufacturing concept, to transforming strong casting country is hopeful.
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