With underlying microstructure of troostite, gray cast iron parts or components of machinery, and a method for manufacturing them

摘要

consists of cast iron graphite is embedded in the basic microstructure, of machinery, in a component or components of large machinery, normalizing step at 850~900 ℃, cooling and quick up to about 400 ℃ and the subsequent, in particular, The controlled cooling for cooling the rest of the more slowly and subsequently, according to the relationship given temperature and time, are inserted in the form of a layered graphite, troostite fine layered as a base material By forming, good processability, and good tribological characteristics can be obtained and high load capacity.