In the past 50 years, China’s total casting output has exceeded 24 million tons. According to the statistics of 10% grIn the past 50 years, China’s total casting output has exceeded 24 million tons. According to the statistics of 10% growth ratio in 2006, the casting output is estimated to have exceeded 26 million tons. In recent years, China’s cast steel industry has developed rapidly. The output of cast steel has been hovering around 1.5 million tons from 1995 to 2002, jumping to 2.5 million tons in 13 years, 2.7 million tons in 2004, more than 30 million tons in 15 years, more than 35 million tons in 16 years, and more than 40 million tons. In about 20 years, the output of cast steel will increase by about 20000 tons. (due to the renewal and speed-up of the whole locomotive and rolling stock, the output of steel castings has exceeded 300000 tons in 13 years and is estimated to reach nearly 500000 tons in 15 and 06 years)
Due to the small number of domestic manufacturers of large steel castings and high prices, qualified enterprises are using large steel casting production equipment. According to preliminary statistics, there are dozens of enterprises in China that have expanded production and are being transformed. The problem is that there is only one market, blind investment is bound to lead to excess equipment, and the production task of large castings is seriously insufficient, The competition between industries must be more and more fierce, which is not conducive to the development and improvement of China’s large steel castings.