Graphite anode or Duriron anode(high silicon castiron anode) is more often used in deep well ground bed for cathodic protection,but they have some shortcomings.

• 阴极保护系统在采用深井作为阳极地床时,以往使用较多的是石墨阳极或高硅铸铁阳极,但其存在很多弊端。