CAST IRON FOR GRINDING BODIES Russian patent published in 1999 - IPC

FIELD: grinding equipment. SUBSTANCE: invention relates to composition of cast iron for manufacturing grinding bodies and wearing parts such as ball mill armor plates, ram heads, jaw breaker jaws, etc. Cast iron is composed of, wt %: carbon 3.5-4.2, silicon 0.1-0.6, manganese 0.1-0.6, chromium 0.4-1.0, vanadium 0.05-0.55, titanium 0.06-0.25, copper 0.6-1.5, magnesium 0.03-0.06, iron - the balance. Use of such cast iron results in increasing wear-resistance by 1.6-1.8 times and shock resistance by 1.7-2.3 times. EFFECT: increased wear and shock resistance. 2 tbl