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1. WO2000015878 - ZINC COATED STEEL PLATES COATED WITH A PRE-LUBRICATING HYDROXYSULPHATE LAYER AND METHODS FOR OBTAINING SAME

Publication Number WO/2000/015878
Publication Date 23.03.2000
International Application No. PCT/FR1999/002141
International Filing Date 09.09.1999
Chapter 2 Demand Filed 08.03.2000
IPC
C23C 22/68 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
22Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
05using aqueous solutions
68using aqueous solutions with pH between 6 and 8
C25D 5/48 2006.01
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
5Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
48After-treatment of electroplated surfaces
C25D 11/34 2006.01
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
11Electrolytic coating by surface reaction, i.e. forming conversion layers
02Anodisation
34of metals or alloys not provided for in groups C25D11/04-C25D11/3299
CPC
C23C 22/68
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
22Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
05using aqueous solutions
68using aqueous solutions with pH between 6 and 8
C25D 11/34
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
11Electrolytic coating by surface reaction, i.e. forming conversion layers
02Anodisation
34of metals or alloys not provided for in groups C25D11/04 - C25D11/32
C25D 5/48
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
48After-treatment of electroplated surfaces
Y10T 428/12583
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
12All metal or with adjacent metals
12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
12535with additional, spatially distinct nonmetal component
12583Component contains compound of adjacent metal
Y10T 428/12799
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
428Stock material or miscellaneous articles
12All metal or with adjacent metals
12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
12771Transition metal-base component
12785Group IIB metal-base component
12792Zn-base component
12799Next to Fe-base component [e.g., galvanized]
Applicants
  • SOLLAC [FR]/[FR] (AllExceptUS)
  • BELLO, Alain [FR]/[FR] (UsOnly)
  • WAJDA, Sylviane [FR]/[FR] (UsOnly)
  • PETITJEAN, Jacques [FR]/[FR] (UsOnly)
  • ROSSI, Armand [FR]/[FR] (UsOnly)
Inventors
  • BELLO, Alain
  • WAJDA, Sylviane
  • PETITJEAN, Jacques
  • ROSSI, Armand
Agents
  • VENTAVOLI, Roger
Priority Data
98/1144115.09.1998FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) ZINC COATED STEEL PLATES COATED WITH A PRE-LUBRICATING HYDROXYSULPHATE LAYER AND METHODS FOR OBTAINING SAME
(FR) TOLES D'ACIER ZINGUE REVETUES D'UNE COUCHE PRELUBRIFIANTE D'HYDROXYSULFATE ET PROCEDES D'OBTENTION DE CETTE TOLE
Abstract
(EN)
The invention concerns a steel plate coated with a metal layer based on zinc and a zinc hydroxysulphate layer, whereof the surface density of sulphur is more than 0.5 mg/m2. The invention also concerns a method for obtaining said plate by treating a zinc coated sheet metal: either in a highly alkaline sulphate solution under polarisation: or in a sulphate solution containing Zn2+ ions without polarisation. The hydroxysulphate deposit brings about a pre-lubricating effect applicable to operations for forming sheet metal.
(FR)
Tôle d'acier revêtue d'une couche métallique à base de zinc et d'une couche à base d'hydroxysulfate de zinc, pour laquelle la densité surfacique de soufre est supérieure à 0,5 mg/m2. Procédé d'obtention de cette tôle par traitement d'une tôle zinguée: soit dans une solution de sulfate très alcaline sous polarisation, soit dans une solution de sulfate contenant des ions Zn2+ sans polarisation. Le dépôt d'hydroxysulfate apporte un effet prélubrifiant applicable aux opérations de mises en forme de tôle.
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