| 摘要 |
FIELD: metallurgy.SUBSTANCE: cast iron contains in wt %: carbon 3.0-3.5; silicon 1.7-2.5; manganese 0.4-0.8; chromium 0.15-0.25; chrome 0.4-0.6; titanium 0.15-0.3; copper 0.1-0.3; calcium 0.005-0.015; boron 0.005-0.015; niobium 0.4-0.8; iron - the rest.EFFECT: reduced volume of shrinkage cavities in cast iron.1 tbl |
