Specifically for the iron and steel industry during the past 15 years , thermo electron has installed over 100 mass spectrometers for gas analysis applications involving the following plants : coke ovens , blast furnace ( bf ) , direct reduction iron ( dri ) , basic oxygen furnace ( bof ) , electric arc furnace ( eaf ) , argon oxygen decarburization ( aod ) furnace , vacuum oxygen decarburization vod furnace and ruhrstahl - hausen ( rh ) furnace 尤其在过去15年的钢铁行业中,超过100台过程质谱仪用于气体分析,包含:焦炉,高炉,直接还原炼铁炉,氧气顶吹转炉,电弧炉,氩氧脱碳转炉,真空氧气脱碳炉和循环法真空脱碳炉。
Argon oxygen decarburization (AOD) is a process primarily used in stainless steel making and other high grade alloys with oxidizable elements such as chromium and aluminum. After initial melting the metal is then transferred to an AOD vessel where it will be subjected to three steps of refining; decarburization, reduction, and desulphurization.