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BS EN 4868:2023

BS EN 4868:2023

$142.49

Aerospace series. Anodic electrodeposition of hexavalent chromium free primer

Published By Publication Date Number of Pages
BSI 2023 24
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This document defines the requirements for hexavalent chromium free anodic electrodeposition of organic coatings on aluminium and aluminium alloys for corrosion protection of parts. The purpose of this document is to give design, quality and manufacturing requirements. It does not give complete in-house process instructions; these are given in the processors detailed process instructions.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
8 3 Terms and definitions
3.1 General terms
9 3.2 Technical terms
4 Purpose of process
4.1 General
4.2 Applicability
10 4.3 Limitations
5 Protection system classification
6 Process requirements
6.1 Information for the processor
6.2 Condition of parts prior to the treatment
11 6.3 Process conditions
6.3.1 Tooling
6.3.2 Masking
6.3.3 Surface pre-treatment
6.3.4 Anodic electrodeposition
12 6.3.5 Anodic electrodeposition post-treatments
6.4 Water quality
6.5 Rework
7 Required characteristics
7.1 General
7.2 Visual appearance
7.3 Film thickness
7.4 Physical properties of the film
7.5 Corrosion performance of coated parts
7.5.1 Filiform corrosion
13 7.5.2 Corrosion resistance
7.6 Fatigue requirements and test methods
7.7 Fluid resistance
8 Quality requirements
8.1 Process approval
8.2 General points
8.3 Periodic tests
14 8.4 Periodic chemical analysis
8.5 Parts acceptance inspections
8.5.1 Inspections before treatment
8.5.2 Inspections during treatment
8.5.3 Inspections after anodic electrodeposition
15 Annex A (normative)Engineering requirements
18 Annex B (normative)Test methods
B.1 Tape adhesion test
B.1.1 Tape specification
B.1.2 Method
B.2 Curing inspection
B.2.1 General
B.2.2 Criteria
19 Annex C (normative)Parts acceptance inspections
20 Annex D (normative)Periodic tests requirements
21 Annex E (informative)Standard evolution form

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BS EN 4868:2023
$142.49