At present, China's casting industry production scale, casting production varieties, have been in the forefront of the world.Strong industrial base for many industries to provide a large number of castings (blank and parts).
In recent years, China's casting industry has entered the ranks of the world's major casting countries with many factories, large output and complete categories. Meanwhile, China's casting export has been growing rapidly. From January to march this year, China's casting steel and cast iron output reached 2,469,140 tons, 1,040,613 tons respectively, with a year-on-year growth of 13.32% and 12.54%.Export products have also progressed from simple pieces to demanding castings of complex shapes.But with the United States, Japan, Germany, France and other casting power, there is a considerable gap.
With the development of the world economy, China has become a strong foundry country.The basic method is: casting from low - added value products to the middle and high - grade casting development.This requires that the technical level of the whole casting must be improved, but the casting technical level is a system engineering, subject to the reality, it is difficult to get a substantial improvement in the short term.The most urgent task is to reduce the reject rate of castings, so the repair efficiency of castings has been more and more valued by enterprises. Even well-known foreign enterprises and large state-owned enterprises with strong technical strength have adopted casting repair method to make up for the deficiency of existing casting technology.Different enterprises often take different methods to save defective castings according to their own situations.