中频电炉常用的升温方法广泛为电加热圈加温，根据触碰传输方法把发热量传入料筒上，仅有紧靠在料筒外表內侧的发热量才可以传入料筒上，那样两侧的发热量绝大多数散失到空气中，存有着导热损害，河北中频电炉并造成温度升高。
In
addition, the medium frequency electric furnace in Hebei has a defect
that the power is low, and it can not be integrated in some heating
places where the temperature must be high.
此外河北中频电炉还有一个缺陷便是功率低，在一些必须溫度较高的加温场所就没法融入了。
The
medium frequency electric furnace is based on the magnetic effect of
the current to make the metal material cylinder itself hot, and can be
wrapped with a certain wall thickness of thermal insulation raw
materials according to the actual situation in the outside of the
cylinder, which greatly reduces the loss of calories and improves the
thermal efficiency, and the actual effect of the medium frequency
electric furnace is very significant, up to 20% to 40%.
河北中频电炉是根据电流的磁效应使金属材料料筒本身发烫，而且可以按照实际情况在料筒外界包囊一定壁厚的保温隔热原材料，那样就大大减少了卡路里的流失，提升了热效，河北中频电炉因而省电实际效果十分显着，可达20%～40%。
