Method of production of large-size bushings in copper chills with horizontal axis of rotation

摘要

the invention solves the issue of large-scale high performance cores physico mechanical (hardness, resistance to abrasion and corrosion). the raw material mainly copper and copper alloys is drowning in electric induction furnace steel (5) to liquid form.after reaching the temperature alloy by liquid metal to trigger thermal (approximately 250 - previously 300u00b0c) gas torches vats (2). vat of liquid metal is transported by crane with a horizontal axis for centrifuges spinning shells form based on copper.during the flooding kokila's check in chilled water (8), to obtain the cast structure fine particle size (obtain adequate mechanical properties, by controlling the transition phase, occurring in the structure of metal) and the balanced distribution of metal in kokili. then ready sleeve, with the aid of the piston is wypychana with kokili.