Patent ID: 8317942
Filing Date: 2012-11-27
Classification: C21D,C22C,F02F

Abstract:
1. A wear-resistant and corrosion-resistant axial face seal having a diameter of greater than 600 mm and high thermal conductivity for sealing a gear running at peripheral speeds greater than 5 m/s, comprising a material of ledeburitic cast iron containing graphite, wherein the graphite is evenly distributed and in a free formation, the ledeburitic cast iron has a carbide content of at least 15.0 wt. %, and the ledeburitic cast iron contains: 4.1-4.2 wt. % carbon (C), 1.7 wt. % silicone (Si), 0.6 wt. % manganese (Mn), 0.4 wt. % phosphorus (P), 0.08 wt. % sulphur (S), 1.7-3.0 wt. % chromium (Cr), 0-0.9 wt. % molybdenum (Mo), 2.0-3.0 wt. % nickel (Ni), 0.3-0.35 wt. % vanadium (V), as well as iron and manufacturing-related impurities as the remainder.