Processing

Please wait...

Settings

Settings

Goto Application

1. WO1999058743 - POWER SOURCE UNIT FOR DISCHARGE SURFACE TREATMENT

Publication Number WO/1999/058743
Publication Date 18.11.1999
International Application No. PCT/JP1998/002042
International Filing Date 08.05.1998
Chapter 2 Demand Filed 09.06.1999
IPC
C23C 26/00 2006.01
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
26Coating not provided for in groups C23C2/-C23C24/87
CPC
B05D 1/62
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
1Processes for applying liquids or other fluent materials
62Plasma-deposition of organic layers
B05D 3/141
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
3Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
14by electrical means
141Plasma treatment
C23C 26/00
CCHEMISTRY; METALLURGY
23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
26Coating not provided for in groups C23C2/00 - C23C24/00
C25D 17/00
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
17Constructional parts, or assemblies thereof, of cells for electrolytic coating
C25D 21/12
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
21Processes for servicing or operating cells for electrolytic coating
12Process control or regulation
C25D 5/18
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
5Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
18Electroplating using modulated, pulsed or reversing current
Applicants
  • MITSUBISHI DENKI KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • INOUE, Tooru [JP]/[JP] (UsOnly)
  • GOTO, Akihiro [JP]/[JP] (UsOnly)
Inventors
  • INOUE, Tooru
  • GOTO, Akihiro
Agents
  • SAKAI, Hiroaki
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) POWER SOURCE UNIT FOR DISCHARGE SURFACE TREATMENT
(FR) UNITE SOURCE D'ALIMENTATION EN ENERGIE POUR TRAITEMENT DE SURFACE PAR DECHARGES
Abstract
(EN)
A power source unit for discharge surface treatment which uses a dust electrode as a discharge electrode to generate pulse-like discharge between the discharge electrode and a work to thereby form a film comprising an electrode material or a material obtained by the reaction of the electrode material caused by the discharge energy on the surface of the work, wherein pulse generation is prevented for long by: (1) forcibly breaking the output of an oscillator by current breaking means when a discharge voltage detected by voltage detection means is lowered below a discharge detection voltage so preset as to have a value slightly lower than a power-supply voltage; (2) connecting a capacitor in parallel with an oscillation circuit of the oscillator; (3) limiting a discharge time of one discharge operation by timer control.
(FR)
L'invention concerne une unité source d'alimentation en énergie pour traitement de surface par décharges, qui utilise une électrode agglomérée en tant qu'électrode de décharge pour générer des décharges analogues à des impulsions entre cette électrode et une pièce à traiter pour former ainsi un film comprenant un matériau d'électrode ou un matériau obtenu par la réaction du matériau d'électrode résultant de l'énergie de décharge, sur la surface de la pièce à traiter, la génération d'impulsions étant empêchée pendant une longue période par: (1) coupure de force du signal de sortie d'un oscillateur avec des moyens de coupure de courant lorsque la valeur d'une tension de décharge détectée par des moyens de détection de tension est abaissée à un niveau inférieur à la valeur d'une tension de détection de décharge préréglée de telle sorte que l'on obtienne une valeur légèrement inférieure à une tension d'alimentation en énergie; (2) connexion d'un condensateur en parallèle avec un circuit d'oscillation de l'oscillateur; (3) limitation du temps de décharge d'une opération de décharge au moyen d'une commande minutée.
Latest bibliographic data on file with the International Bureau