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In order to achieve the clean quality steel, the hazard inclusions in liquid steel, such as [N] [H] [O] [S] must be removed thoroughly For these targets the VD plant is the most powerful and advanced technological facility for steelmakers 

As the same in order to achieve ultra-low-carbon stainless steel and seeking for the high results of de-carbon and hold chrome, the VOD furnace is almost the only choice, and the VOD has also the VD function 

Technical features of VD and VOD  
 Water steam injector pump with powerful evacuating capacity is applied ; 
 The process design for equipment is based on the practical experience for many years 
and advanced technology abroad ;
 Multi-points dust collection design is considered to make vacuum pump for longer 
Service life; 
 Advanced vacuum charging system with advanced sealing structure guarantee the 
operation In more reliability ;
 On the oxygen lance, the gas cell sealing set counter-weight device, slag skimmer set, 
Different driving units and clear lance position display are installed;
  On the automatic control system of vacuum furnace, the electric, instruments and computer are to be considered as an entirety Control reliable display clear, data transfer and rated foreign advanced technology guarantee to obtain optimum economic results