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• Time of issue:2023-01-04 15:02
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(Summary description)The field of stainless steel precision casting is different from the traditional casting industry. Although it is a major foundry country in China, precision casting is still in the development stage and there are still significant differences from developed countries in Europe and America. In recent years, China has vigorously promoted modernization and continuously improved the level of high-tech. There are already some relatively complete methods and methods in precision casting. In addition, the requirements for precision casting products in China are also continuously increasing. Therefore, precision casting, especially stainless steel precision casting, will have extensive indoor space for development in China. Stainless steel precision casting, also known as sand mold casting precision casting. This machining process tries to avoid or avoid drilling throughout the entire casting process. It is a casting machining process with little or no drilling, and is an excellent production process in the casting industry. It has a particularly wide range of applications, not only suitable for casting various types and metals, but also produces castings with higher specifications, precision, and surface quality than other casting methods. At the same time, for heat-resistant and difficult to produce castings, sand mold casting precision casting method can be used. This type of casting method is more suitable for casting components in high-tech industrial chains such as aerospace, national defense, and security, as it is not subjected to high temperature and high pressure throughout the casting process. The earliest stainless steel precision casting can be traced back to the 1930s and 1940s. The United States first used stainless steel precision casting to cast turbine blades in its high-tech leading aviation engines at that time, and the finished products received five-star praise in various fields, thus obtaining marketing promotion for this method. The research and application of stainless steel precision casting products in China was established after the founding of the People's Republic of China. With the development of national defense technology in China, stainless steel precision casting research laboratories or foundries have been established in Liaoning, Guizhou, Beijing, Shaanxi, Hunan, and other places. However, objectively speaking, the development of stainless steel precision casting in China is still in its infancy and cannot meet the development requirements in fields such as aerospace and national defense technology. Due to the high added value of stainless steel precision casting, the field of stainless steel precision casting is different from the traditional casting industry. According to relevant statistical analysis (2013 data information), in the aerospace machinery and excellent automotive engines of European and American countries, the added value of precision casting raw materials accounts for nearly 70% of the total added value, but the domestic market share is less than 35%. Although China is already the country with the largest casting volume, its casting value is still at the upstream level and cannot reach the top-level level. Therefore, the essence and practical significance of developing stainless steel precision casting are the basic requirements for national defense security and technology, and the inevitable choice for economic development.