Method of cleaning the surface of a material coated with an...

Details Method of cleaning the surface of a material coated with an... Method of cleaning the surface of a material coated with an...

2003-02-19

2010-02-16

Kornakov, Michael (Department: 1792)

Cleaning and liquid contact with solids

Processes

Including application of electrical radiant or wave energy...

C134S032000, C134S034000, C134S037000

Reexamination Certificate

active

07662237

ABSTRACT:
A method for the continuous cleaning of the surface of a material (2) which is coated with an organic substance. Steps of the method are: introducing the material (2) into a treatment area which is supplied with a gas stream containing oxygen; earthing the material (2); and generating a plasma by imposing an electric field between the surface of the material (2) and at least one dielectric-covered electrode (3), the electric field being pulsed and providing a succession of positive and negative voltage pulses in relation to the material (2). Moreover, the maximum voltage of the positive pulses U+ is greater than the arc-striking voltage Ua, and the maximum absolute value of the voltage of the negative pulses U− is less than the striking voltage Ua. Also, a generator and a device which are used to carry out this method.

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Korzec D et al: “Cleaning of Metal Parts in Oxygen Radio Frequency Plasma: Process Study”, Journal of Vacuum Science and Technology, Part A, American Institute of Physics, New York, USA, vol. 12, No. 2, Mar. 1, 1994, pp. 369-378, XP 000442717 ISSN: 0734-2101, p. 370.

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