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本文叙述了双抽12万千瓦汽轮机高压喷嘴室的结为特点及其铸造要求,通过试铸,铸出了仅为30mm的汽道及～20mm的盛汽室,出砂方便。
This paper describes the knotty characteristics and casting requirements of the high pressure nozzle chamber of a double pumping 120 MW steam turbine. Through the trial casting, a steam channel of only 30 mm and a steam chamber of ~ 20 mm are cast, and are convenient for sand production.