Device and method for impregnating a porous material with powder

摘要

This impregnation device comprises at least a first dielectric insulating screen and first and second opposite-facing electrodes which are separated by a passage for the porous material to be impregnated provided with powder and are capable of producing an alternating electric field in this passage after having been connected to an alternating voltage generator. At least first electrode comprises at least two conducting strips, each of which has an internal face covered by the first dielectric screen and, overall, is turned towards the second electrode and also a longitudinal edge running along a separating slot, which strips are separated from each other by this separating slot and are electrically connected to one another.

主权项

1. A device for impregnating a porous material with powder, comprising at least a first dielectric screen and first and second opposite-facing electrodes which are separated by a passage for the porous material provided with powder and are capable of producing an alternating electric field in this passage after having been connected to an alternating voltage generator, with the first dielectric screen electrically insulating the first and second electrodes from each other at a level of said passage wherein at least said first electrode comprises at least two conducting strips, each of which has an internal face covered by the first dielectric screen and, overall, turned towards the second electrode, and also a longitudinal edge running along a separating slot, which said strips are separated from each other by this separating slot and are electrically connected to one another.