Nevertherless, basic oxygen furnace process with heated ladle refining and vacuum degassing may also be considered as acceptable.
不过，带加热钢水包精炼及真空除气的氧气顶吹转炉工艺也可接受。？
The pressure of the steam used in the vacuum pump of VD refining furnace is stable, but its flow is periodic.
VD精炼炉的真空抽气泵工作时蒸汽压力稳定而流量具有周期性，间断使用。
Steam is key medium for vacuum pumping of RH refining furnace. Direct use of converter steam in production is a difficult problem that has been solving in metallurgic enterprises.
蒸汽是RH 精炼炉真空泵抽真空所需的关键介质，直接将转炉蒸汽用于生产是国内冶金企业一直在解决的难题。
The utility model relates to a vacuum melting-refining furnace for producing neodymium, iron, boron and rare earth permanent magnetic alloy material and rare earth hydrogen-storage alloy material.
本实用新型涉及一种生产钕铁硼稀土永磁合金材料及稀土储氢合金材料的真空熔炼炉。
The utility model relates to a vacuum melting-refining furnace for producing neodymium, iron, boron and rare earth permanent magnetic alloy material and rare earth hydrogen-storage alloy material.
本实用新型涉及一种生产钕铁硼稀土永磁合金材料及稀土储氢合金材料的真空熔炼炉。
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