摘要:
To dry a hand (25) with fingertips (26) and a wrist (27), the palmar aspect and the dorsal aspect of the hand (25) are blown dry, starting from the fingertips (27), by a pair of planar gas jets (28), wherein the gas jets (28) of the pair run towards each other in the direction from the wrist (27) to the fingertips (26) at a angle of less than 180°. By applying high-voltage AC pulses with respect to ground to dielectrically shielded electrodes (17) arranged next to both planar gas jets (28), direct discharges (29) are obtained across the hand (25) on the palmar aspect thereof and on the dorsal aspect thereof.
摘要:
An electrode arrangement (18) for surface-treating a body (11) with a physical plasma has a high-voltage connection (19) for connection to an output (6) of an alternating high-voltage source which generates an alternating high voltage, a plurality of linear electrode bodies (2) and a treatment area (9) which adjoins the electrode bodies (2). The electrode bodies (2) are connected jointly to the high-voltage connection (19) in such a way that the same alternating high voltage is applied to all of the electrode bodies (2). The electrode bodies (2) each comprise an arcuate region (10) in which the respective linear electrode body (2) changes its direction by at least 90°; and the electrode bodies (2) are sheathed by a dielectric (4) and/or are individually coupled to the high-voltage connection (19) in a capacitive manner. The treatment area (9) into which the body (11) for surface-treatment with the physical plasma is to be introduced is located at least partially between the arcuate regions (10) of the electrode bodies (2).
摘要:
For the plasma treatment of a surface (2) of an object (3), an electrode (6) having a convex surface (9) facing the object (3) is moved towards the surface (2) of the object (3) in such a way that, adjacent to a contact region (10) between the surfaces (2, 9), at least one plasma region (11) is formed, in which a dielectrically impeded gas discharge is generated between the surfaces (2, 9) when a high AC voltage is applied to the electrode (6).
摘要:
The invention relates to a coplanar dielectric barrier discharge source (10) for a surface treatment under atmospheric pressure which comprises two elongated electrodes (1) having a common shield (12) from a dielectric (2) and extending in parallel to each other and in parallel to a free surface (13) of the shield (12). The free surface (13) of said shield (12) comprises grooves (5) that extend transversely to the electrodes (1).
摘要:
A device for the plasma treatment of an object, in particular in strip form, has an electrode (7) and a counterelectrode (8) of electrically conductive material and an alternating high-voltage generator (17), which is designed and connected so as to cause a gas discharge between the electrode (7) and the counterelectrode (8) by means of an alternating high voltage. In this case, the electrode (7) and the counterelectrode (8) are arranged next to one another in a contact casing (5), which has a roller (1), which is mounted rotatably about a roller axis (2) and is intended for contacting the object to be treated. The contact casing (5) has an outer layer (9, 10) of dielectric material (6), which covers the electrode (7) and the counterelectrode (8) and, between the electrode (7) and the counterelectrode (8), is connected in series with the gas discharge in order to hinder the gas discharge dielectrically, and arranged above the electrode (7) and/or above the counterelectrode (8) there is a linear ignition electrode (21, 22) of electrically conductive material, which is separated from the electrode (7) and the counterelectrode (8) by the outer layer (9, 10) and at the outer circumference of the contact casing (5) is exposed.
摘要:
To remove material (2) from a shaped body (1) made of a SiO 2 -based material (2) using intensive light, the absorption of intensive light by the material (2), before the intensive light is directed onto a surface (3) of the shaped body (1), is increased on the surface (3) by the introduction of atomic hydrogen into the surface.