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.

• 摘要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。