introduction
OIN (Organisation internationale de normalisation) est une fédération mondiale d'organismes de normalisation nationaux (Comités membres de l'ISO). L'élaboration de normes internationales est généralement réalisée par l'intermédiaire de comités techniques ISO.. Chaque groupe membre intéressé par un sujet pour lequel un comité technique a été créé a le droit d'être représenté au sein du comité.. Organisations internationales, les gouvernements et les organisations non gouvernementales en contact avec l'ISO sont également impliqués dans ces travaux. L'ISO travaille en étroite collaboration avec la Commission électrotechnique internationale (CEI) sur toutes les questions de normalisation électrique.

Partie 1 de la Directive ISO/CEI décrit les procédures utilisées pour élaborer ce document et pour sa maintenance ultérieure.. En particulier, il convient de prêter attention aux différents critères d'approbation requis pour les différents types de documents ISO. Ce document a été rédigé conformément aux règles éditoriales de la Directive ISO/IEC Partie 2 (voir iso.org/directives).

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OIN 22553-1- Peintures et vernis revêtements électrodéposés – Partie 1: Vocabulaire

Interprétation volontaire, related standards and conformity assessment related ISO specific terminology and express the meaning of and the ISO in the technical barriers to trade (OTC) adhérer au principe de l'organisation mondiale du commerce (OMC) information, please see the iso.org/iso/foreword.html.

This document was prepared by Technical Committee ISO/TC 35, Peintures et vernis, Sous-comité SC 9, Méthodes d'essai courantes pour les peintures et vernis.

Une liste de toutes les pièces dans l'ISO 22553 la série peut être consultée sur le site Web de l'ISO.

Any feedback or questions on this document should be referred to the user’s national standards body. A complete list of these institutions can be found at iso.org/members.html.

introduire
In the electrodeposition coating process, the non-volatile substances in the water-dilutive electrodeposition coating are deposited on the workpiece by the electrophoretic process. Durant ce processus, the internal and external areas of the workpiece, including all cavities, are touched. Cathode deposition or anode deposition is distinguished according to whether the workpiece is used as cathode or anode. The cathodic electrodeposition coating process is commonly used (voir la figure 1).

Chiffre 1 – Example of the deposition process during cathodic electrodeposition coating

OIN 22553-1- Peintures et vernis revêtements électrodéposés – Partie 1: Vocabulaire

Key

Through the combination of adhesives, pigments and deposition processes, hardening creates a very corrosion-resistant coating on the workpiece, which contributes significantly to corrosion protection in both internal and external areas.

The electrical properties of the material are also important for the electrical energy consumption (bulk charge density) of the process.

Since the electrophoretic paint is jointly responsible for the overall appearance of the coating system, it is often emphasized that the coating works well and has no visible defects.

Donc, for extensive corrosion protection and sealing of the workpiece, additional joint sealing materials, adhesives or foams are recommended.

Inside the electrophoresis tank, bacterial contamination may be present due to the material being dragged in and the physical conditions (chaleur, water-based media, carbon sources, etc.).

This document specifies the terms and definitions of electrodeposited coatings. The subsequent part of the ISO 22553 series specifies methods of characterization and testing of electrodeposited coatings. An overview of the test methods is given in Annex A.

OIN 22553-1- Peintures et vernis revêtements électrodéposés – Partie 1: Vocabulaire

1 Champ d'application
This document defines the terms for electrodeposited coatings.

Il convient aux revêtements par électrodéposition dans l'industrie automobile et à d'autres applications industrielles générales., comme un refroidisseur, biens de consommation, radiateurs, aérospatial, agriculture.

2 Documents normatifs de référence
There are no normative references in this document.

3 Termes et définitions

3.1 Volume charge density ρ

Quotient of charge Q and volume V, as shown in the formula:

Peintures et vernis – revêtements électrodéposés – Partie 1: Glossary Diagram 2

Note 1: The volume charge density is expressed in coulombs per cubic meter (C/m 3).

Article Note 2:1 C/m 3 = 1 A⋅s/m 3.

3.2 Deposition voltage u

The voltage is adjusted on the corresponding device to deposit an electrodeposited coating material (3.9) by an anode or cathode method, having a film thickness specified for the coating material

Note 1: The deposition voltage is measured in volts (V).

3.3 Deposition time

The time required to obtain the desired film thickness

3.4 Anode electrodeposition coating process

Anodic electrophoresis process

A variant of an electrodeposited coating in which the coated components are connected as an anode and the reverse electrode is connected as a cathode

3.5 Pigment content, determined by ashing

Mass fraction of residue after ashing of the product under specified conditions

Note 1: It includes inorganic pigments, charges, and other solid components of the product that do not evaporate under test conditions, but their state may change.

3.6 Baking Process

The final drying and chemical crosslinking process of the applied paint film is initiated by heating

OIN 22553-1- Peintures et vernis revêtements électrodéposés – Partie 1: Vocabulaire

3.7 Perte de cuisson

Volatiles released under standard baking conditions

Note 1: Baking loss includes reaction loss.

3.8 Entry Tags

Visible defects that occur during the immersion of the panel under voltage, usually in the form of streaks parallel to the bath surface on the object to be painted

Exemple:

Hash marks (voir la figure 5), pinholes (voir la figure 4), mappings (voir la figure 3).

3.9 Revêtements électrodéposés

Electronic coating

Waterborne coatings for electrophoretic coating

3.10 Deposition time

The time that voltage is applied between anode and cathode during the coating process

3.11 Flores

Flower-shaped craters, formed by a combination of single craters

Note d'entrée 1: Voir la figure 2 for an example.

Chiffre 2 – Flores’ example

OIN 22553-1- Peintures et vernis revêtements électrodéposés – Partie 1: Vocabulaire

3.12 Protection de bord

The ability to protect edges from corrosion

Article Note 1: Edges may be produced by drilling, perforation, and cutting.

3.13 Edge corrosion

Corrosion due to inadequate edge protection (3.12)

Article Note 1: Edges may be produced by drilling, perforation, and cutting.

3.14 Cathode electrodeposition coating process

Cathodic electrophoresis

A variant of an electrodeposited coating in which the coated parts are connected as a cathode and the reverse electrode is connected as an anode

OIN 22553-1- Peintures et vernis revêtements électrodéposés – Partie 1: Vocabulaire

3.15 Bacteria count

Colony count

The number of colony forming units (CFU) to form a macroscopically countable colony

3.16 Mapping

Local differences in film thickness in electrodeposited films

Note d'entrée 1: Voir la figure 3 for an example.

Chiffre 3 – Mapping example

OIN 22553-1- Peintures et vernis revêtements électrodéposés – Partie 1: Vocabulaire

3.17 Pinholes

The holes in the coating extend all the way to the substrate

Article Note 1: Pinholes are often mixed with craters.

Note d'entrée 2: Voir la figure 4 for an example.

Chiffre 4 – pinhole example

3.18 Hash tag

Hydrogen attached during the process causes characteristic depressions in the electrodeposited coating

Item Note 1: One characteristic of the pound sign is the direction of the horizontal line. En particulier, hash marks appear when the specimen is heavily impregnated.

Note d'entrée 2: Voir la figure 5 for an example. A distinct hash mark can be detected on the right side that has been moistened with softening water. On the left side of the department, there are significantly fewer hash marks.

OIN 22553-1- Peintures et vernis revêtements électrodéposés – Partie 1: Vocabulaire

3.19 La stabilité

Electrodeposited coatings are often exposed to the aging process, especially during extended downtime (holidays, downtime, etc.), tel que:

– evaporation of water, solvents and neutralizers;

– Chemical changes in adhesives caused by air;

— bring in bacteria;

– Other reactions of the adhesive

3.20 Effort

The ability of the electrodeposited coating to penetrate the box section

3.21 Workpieces

Objects coated with material

OIN 22553-1- Peintures et vernis revêtements électrodéposés – Partie 1: Vocabulaire

Exemple:

Tuyaux, radiateurs, vehicles, steel test plates, magnesium and aluminum alloys, pre-treated plastics.

3.22 Rupture voltage

Electrodeposition coatings deposit a potential that is no longer controllable, Par exemple, a significant change in film thickness, gas formation, or heat generation

Note 1: The rupture voltage can only be determined experimentally by the voltage series.

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