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结合大庆３０万ｔ／ａ乙烯装置扩建为３５万ｔ／ａ工程中裂解气离心式压缩机的扩容改造，介绍了叶轮抗硫化物应力腐蚀的一些措施。
In this paper, some measures of stress corrosion cracking resistance of the impeller are introduced according to the expansion of the centrifugal compressor of cracking gas in 350,000 t / a expansion of Daqing 300,000 t / a ethylene plant.