Method and apparatus for centrifugal casting

摘要: Tubular metal articles are produced by centrifugal casting in a rotary mold lined centrifugally distributing quantity of dry finely particulate free flowing refractory material on the active surface with being excess that required for lining, densifying layer rotating at rate such is subjected to force adequate establish an equivalent specific gravity least 7.5, determined multiplying actual number gravities force, contouring densified and removing material, then introducing molten while continuing rotate rate. Articles so cast have relatively smooth outer surfaces which require only finish machining. The invention employs no additives thus eliminates need venting mold, provides thick lining predetermined insulating capability as control grain structure metal, usual end cores, allows be recycled. particularly useful articles, cylinder liner blanks, from grey iron, having enlargement, typically transverse flange. Cast according invention, Type A graphite throughout entire inner substantial portion thickness flange or other enlargement.