Vacuum extraction system of extraction performance affects behavior of degassing , decarburization, denitriding and so on in RH_KTB refining process.

真空抽气系统抽气性能的好坏直接影响RH-KTB精炼的脱气、脱碳、脱氮的效果，极限真空度高低决定了钢水最终的气体含量。

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The effects on RH decarburization of several parameters including lift gas flow rate, vacuum pressure reduction curves, KTB starting time and initial carbon and oxygen content are investigated.

考察了提升气体流量、真空度压降模式、KTB吹氧时机以及初始碳氧含量对RH脱碳的影响。

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The thesis briefly expounds the equipments and the refining technology of Vacuum Oxygen Decarburization Converter (VODC).

简述了真空吹氧脱碳转炉(V O D C)的设备和精炼技术。

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