中国是世界上研究、生产和应用蠕墨铸铁较早的国家之一。早在60年代初期，被称作“高强度发铸铁”或“厚片状石墨铸铁”，在大功率柴油机活塞、机床、试验机和液压件等铸件上得到应用[1]。自70年代中期起，在蠕墨形成机理、蠕铁性能、各类蠕化剂及其生产处理工艺及铸造工艺等方 China is one of the earliest countries in the world to study, manufacture and apply vermicular graphite iron. As early as the early 1960s, it was called “high strength cast iron” or “thick flake graphite cast iron” and was applied to castings such as high-power diesel pistons, machine tools, testing machines and hydraulic parts [1]. Since the mid 70s, in the formation of vermicular graphite mechanism, vermicular iron performance, all kinds of vermiculite and its production and processing technology and casting process and so on