| 摘要 |
FIELD: metallurgy and machine-building. SUBSTANCE: the invention is dealt with metallurgy and machine-building and may be used for manufacture of the cast components operating in conditions of an abrasive wear and corrosion. The invention presents the cast iron, that contains carbon, chromium, molybdenum, titanium, nitrogen, silicium, manganese, calcium and iron and that additionally contains barium and strontium at the following components ratio (in mass %): carbon -0 2.4-2.8; chromium - 23.00-28.00; molybdenum - 0.20-0.47; titanium - 0.18-0.25; nitrogen - 0.12- 0.25; silicium - 0.40-0.80; manganese - 0.40-0.80; calcium - 0.015-0.25; barium - 0.015-0.25; strontium - 0.08-0.15; iron and impurities - the rest. At that thus compounds(makes) the relation(ratio) of chromium to carbon 8,2-11,0, and the ratio of titanium to nitrogen makes 0.7-2.0. The invention allows to receive cast iron with high abrasive resistance and rust resistance, technological effectiveness and crack-resistance at casting, a good cutting property. EFFECT: the cast iron has high abrasive and rust resistance, technological effectiveness, crack-resistance at casting and a good cutting property. 1 ex, 2 tbl |
