BEATER FOR HAMMER MILLS Russian patent published in 1999 - IPC

FIELD: manufacture of beaters for hammer mills; applicable at electric power stations or in manufacture of building materials for crushing of various materials. SUBSTANCE: beater is distinguished by the fact that it is made of magnesium high-strength cast iron with spheroidal graphite, with the following amounts of components, wt.%: carbon 3.08-3.45; silicon 2.58-2.85; manganese 0.54-1.04; sulfur within 0.03; phosphorus 0.15- 0.31; magnesium 0.058-0.08; the balance, iron. Cast iron has perlitic structure with ferrite content up to 10 vol.%. Beater is made by casting into metal mold. EFFECT: prolonged service life, reduced cost and higher resistance to wear with high maintainability.