ELECTRIC DISCHARGE TREATMENT METHOD FOR INSIDE SURFACE OF OBJECT TO BE TREATED AND ELECTRIC DISCHARGE TREATMENT APPARATUS

PROBLEM TO BE SOLVED: To provide an electric discharge treatment method whereby all the inside wall surface of an object to be treated can be uniformly subjected to a plasma treatment without the necessity for a plasma atmosphere formation gas even when the object is large-sized; and an electric dis...

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Bibliographische Detailangaben
Hauptverfasser:	AKUTSU KENSUKE, IWATA AKINORI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL PROCESSES OF COMPOUNDING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PLASMA TECHNIQUE PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an electric discharge treatment method whereby all the inside wall surface of an object to be treated can be uniformly subjected to a plasma treatment without the necessity for a plasma atmosphere formation gas even when the object is large-sized; and an electric discharge treatment apparatus therefor. SOLUTION: A sheet-like counter electrode 2 is wound around the outer surface of a cylindrical dielectric 4. In the inside space of the cylindrical dielectric 4, a plastic-made cylindrical object 3 to be treated is placed; and in the hollow part of the object 3, a rod-like discharge electrode 1 is placed. Between the discharge electrode 1 and the counter electrode 2, a pulse high-voltage is applied by a pulse high-voltage formation circuit comprising a negatively polar high-voltage electric source circuit and a wave-form formation circuit, thus causing corona discharge and forming a plasma atmosphere without using a plasma atmosphere formation gas. By the plasma atmosphere, all the inside wall surface of the object 3 is subjected to a uniform plasma treatment even when the object is large-sized.