| 摘要 |
FIELD: metallurgy.SUBSTANCE: cast-iron contains the following, wt %: carbon 3.6-4.0; silica 2.2-2.6; manganese 0.3-0.5; copper 1.3-1.7; aluminium 0.12-0.16; calcium 0.0001-0.0002; zinc 0.002-0.004; lithium 0.0005-0.001; phosphorus 0.24-0.3; barium nitrides 0.02-0.03; iron is the rest.EFFECT: increasing cast-iron strength.1 tbl |
