The output power of both the graphite paper gasket and the direct contact method is 24W, the power density is 100W/cm, and the operation lasts for 80h. The wear of the surface electrode is tested respectively, and the damage forms of the two methods on the contact electrode surface are compared. The following Furuite graphite braid introduces the direct contact mode of graphite paper gasket:
By using the graphite paper gasket, the wear particles on the electrode surface are fine, while the electrode surface in direct contact shows the traces of flake falling off. This is because in the direct contact mode, the electrode surface of the piezoelectric transformer directly contacts with the cooling copper sheet, and the solid solid contact is uneven, which is easy to damage the surface electrode; Graphite paper has a smooth surface and good toughness, which can ensure full contact with piezoelectric transformer and has less damage to it. The percentage of electrode wear on the surface of piezoelectric transformer in the total electrode area after continuous working for 80h with graphite paper gasket and direct contact. The wear amount of surface electrode increases rapidly with the working time, and after a certain time, the wear amount increases slowly. The rapid growth time of wear amount in direct contact mode is. – 3o h, the rapid growth time of wear amount with graphite paper gasket is 60h. After working for 80h, the wear amount of direct contact mode is 9.0400, and the wear amount of graphite paper gasket mode is 4.7500, which is 5300 of direct contact wear amount. The use of 22m graphite paper gasket can reduce the working wear of piezoelectric transformer and protect the contact electrode of piezoelectric transformer with heat dissipation device.
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Post time: Oct-17-2022