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Normas DIN – AENOR
DIN EN 13523-7:2020-11

DIN EN 13523-7:2020-11

Coil coated metals - Test methods - Part 7: Resistance to cracking on bending (T-bend test); German and English version prEN 13523-7:2020 / Note: Date of issue 2020-10-23*Intended as replacement for DIN EN 13523-7 (2014-08).

Tôles prélaquées - Méthodes d'essai - Partie 7: Résistance à la fissuration par pliage (essai de pliage en T); Version allemande et anglaise prEN 13523-7:2020 / Attention: Date de parution 2020-10-23*Prévu pour remplacer DIN EN 13523-7 (2014-08).

Bandbeschichtete Metalle - Prüfverfahren - Teil 7: Widerstandsfähigkeit gegen Rissbildung beim Biegen (T-Biegeprüfung); Deutsche und Englische Fassung prEN 13523-7:2020 / Achtung: Erscheinungsdatum 2020-10-23*Vorgesehen als Ersatz für DIN EN 13523-7 (2014-08).

Fecha:
2020-11 /Active
Equivalencias internacionales:

prEN 13523-7 (2020)

Resumen:
This document specifies the procedure for determining the resistance to cracking of an organic coating on a metallic substrate when bent through 135° to 180°. The degree of adhesion may also be evaluated. Both folding and mandrel methods are considered. The folding method is more often used for practical purposes but where more precise determinations are required, the mandrel method is recommended. The cylindrical bend method may also be used for a pass/fail decision by using an agreed mandrel. The choice of the appropriate test method is limited by the thickness and/or the hardness of the substrate. The feasibility of the test depends on the type and thickness of the substrate. During the procedure, the mandrel should not deform.
Keywords:
Bend testing, Bending stress, Bending tests, Coating materials, Coatings, Coil coatings, Cracking, Definitions, Mandrel bending test, Metal coating, Metals, Organic, Paints, Resistance, Specification (approval), Testing
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