Where misalignment between the inner and outer rings exceeds 1 minute of arc, the action of the load on the flange changes considerably.

The forces applied on the molten pool at the cathode surface under the action of an external magnetic field during vacuum arc coating are analyzed.

Under the arc action, the impurity can easily react with the decomposed product of SF_6, and then produce poison which can corrupt electric equipment, degrade its insulation performance.