EN 62739-3:2017
(Main)Test method for erosion of wave soldering equipment using molten lead-free solder alloy - Part 3: Selection guidance of erosion test methods
Test method for erosion of wave soldering equipment using molten lead-free solder alloy - Part 3: Selection guidance of erosion test methods
IEC 62739-3:2017(E) describes the selection methodology of an appropriate evaluating test method for the erosion of the metal materials without or with surface processing intended to be used for lead-free wave soldering equipment as a solder bath and other components which are in contact with the molten solder.
Verfahren zur Erosionsprüfung für Wellenlötausrüstungen bei Verwendung von geschmolzener, bleifreier Lotlegierung - Teil 3: Leitfaden für die Auswahl von Verfahren zur Erosionsprüfung
Méthode d'essai de l'érosion de l'équipement de brasage à la vague utilisant un alliage à braser sans plomb fondu - Partie 3: Document d'orientation pour le choix des méthodes d'essai d'érosion
L’IEC 62739-3:2017 décrit la méthodologie de sélection d’une méthode d'essai appropriée pour évaluer l'érosion des matériaux métalliques sans ou avec traitement de surface, destinés à être utilisés comme bain de brasure pour les équipements de brasage à la vague sans plomb, ainsi que l'érosion d'autres composants qui entrent en contact avec la brasure fondue.
Preskusna metoda za opremo za valovno spajkanje, ki uporablja staljeno spajkalno zlitino brez svinca - 3. del: Napotki za izbiro metod z erozijskim preskušanjem
Ta del standarda IEC 62739 opisuje metodologijo za izbiro ustrezne preskusne metode za erozijo kovinskih materialov z ali brez površinske obdelave, ki so namenjeni uporabi z opremo za valovno spajkanje, ki uporablja staljeno spajkalno zlitino brez svinca, in drugimi komponentami, ki so v stiku s staljeno spajkalno zlitino.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2018
Preskusna metoda za opremo za valovno spajkanje, ki uporablja staljeno
spajkalno zlitino brez svinca - 3. del: Napotki za izbiro metod z erozijskim
preskušanjem
Test method for erosion of wave soldering equipment using molten lead-free solder alloy
- Part 3: Selection guidance of erosion test method
Ta slovenski standard je istoveten z: EN 62739-3:2017
ICS:
25.160.50 Trdo in mehko lotanje Brazing and soldering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 62739-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2017
ICS 31.190; 31.240
English Version
Test method for erosion of wave soldering equipment using
molten lead-free solder alloy - Part 3: Selection guidance of
erosion test methods
(IEC 62739-3:2017)
Méthode d'essai de l'érosion de l'équipement de brasage à Verfahren zur Erosionsprüfung für Wellenlötausrüstungen
la vague utilisant un alliage à braser sans plomb fondu - bei Verwendung von geschmolzener, bleifreier Lotlegierung
Partie 3: Document d'orientation pour le choix des - Teil 3: Leitfaden für die Auswahl von Verfahren zur
méthodes d'essai d'érosion Erosionsprüfung
(IEC 62739-3:2017) (IEC 62739-3:2017)
This European Standard was approved by CENELEC on 2017-02-10. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 62739-3:2017 E
European foreword
The text of document 91/1368/CDV, future edition 1 of IEC 62739-3, prepared by IEC/TC 91
"Electronics assembly technology" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 62739-3:2017.
The following dates are fixed:
(dop) 2017-11-10
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2020-02-10
standards conflicting with the
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 62739-3:2017 was approved by CENELEC as a European
Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu
Publication Year Title EN/HD Year
IEC 60068-2-20 2008 Environmental testing - EN 60068-2-20 2008
Part 2-20: Tests - Test T: Test methods for
solderability and resistance to soldering
heat of devices with leads
IEC 61190-1-3 - Attachment materials for electronic EN 61190-1-3 -
assembly -
Part 1-3: Requirements for electronic grade
solder alloys and fluxed and non-fluxed
solid solders for electronic soldering
applications
IEC 62739-1 2013 Test method for erosion of wave soldering EN 62739-1 2013
equipment using molten lead-free solder
alloy -
Part 1: Erosion test method for metal
materials without surface processing
IEC 62739-2 - Test method for erosion of wave soldering EN 62739-2 -
equipment using molten lead-free solder
alloy -
Part 2: Erosion test method for metal
materials with surface processing
IEC 62739-3 ®
Edition 1.0 2017-01
INTERNATIONAL
STANDARD
Test method for erosion of wave soldering equipment using molten lead-free
solder alloy –
Part 3: Selection guidance of erosion test methods
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.190; 31.240 ISBN 978-2-8322-3769-4
– 2 – IEC 62739-3:2017 © IEC 2017
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 General remarks . 7
5 Selection of the appropriate erosion test method . 8
5.1 Correlation between test methods and stresses induced in the field . 8
5.2 Recommended test method by materials . 9
6 Common items for each test method . 10
6.1 Specimen preparation . 10
6.2 Solder alloy . 10
6.3 Accelerated stress conditions. 10
6.3.1 Test temperature . 10
6.3.2 Rotation speed . 10
6.3.3 Bending stress to the specimen . 11
6.4 Dross . 11
6.4.1 Dross generation and removal interval . 11
6.4.2 Dross removal method . 11
6.4.3 Molten solder volume after dross removal . 11
6.5 Erosion depth measurement method . 11
6.5.1 Post test treatment . 11
6.5.2 Local erosion depth . 12
6.5.3 General (uniform) erosion depth . 13
6.5.4 Evaluation . 14
7 Overview of the test methods . 14
7.1 Test methods . 14
7.2 Metal material without surface processing . 14
7.2.1 General . 14
7.2.2 Rotation test at 350 °C . 15
7.3 Metal material with surface processing. 16
7.3.1 Test method . 16
7.3.2 Rotation test at 450 °C . 16
7.3.3 Rotation test at 450 °C with 2 mm bending . 17
Annex A (informative) Selection of test temperature, test duration and bending stress . 18
A.1 Specimen without surface processing . 18
A.2 Specimen with surface processing . 20
Annex B (informative) Maximum depth and other measurements . 23
B.1 General . 23
B.2 Maximum depth measurement . 23
Annex C (informative) Erosion mechanism . 26
C.1 Specimen without surface processing . 26
C.2 Specimen with surface processing . 26
C.3 Further guidance . 27
Annex D (informative) Thermal acceleration for erosion . 28
D.1 Specimen without surface processing . 28
D.2 Specimen with surface processing . 28
IEC 62739-3:2017 © IEC 2017 – 3 –
D.3 Further guidance document . 30
Bibliography . 31
Figure 1 – Schematic example of wave soldering equipment . 8
Figure 2 – Example of dross removal tool . 11
Figure 3 – Schematic general definition of erosion depth . 12
Figure 4 – Schematic definition of erosion depth by focal depth method . 12
Figure 5 – Examples of local erosion . 13
Figure 6 – Example of evaluation region . 13
Figure 7 – Examples with non-erosion area . 14
Figure 8 – Examples without a non-erosion area and an example of a cross section . 14
Figure 9 – Configuration example of test equipment. 15
Figure 10 – Configuration example of test equipment for rotation test at 450 °C with 2
mm bending . 17
Figure A.1 – Specimen configuration for preliminary test . 18
Figure A.2 – Erosion depth against molten solder temperature . 19
Figure A.3 – Erosion depth against rotation speed . 19
Figure A.4 – Erosion depth against immersion time . 20
Figure C.1 – Erosion mechanism for material with nitriding . 27
Figure D.1 – Tin (Sn) diffusion layer growth in the plasma nitriding layer for various
stainless steel . 29
Table 1 – Location of erosion in the field and examples of problems . 8
Table 2 – Correlation between test methods and stresses induced in the field . 9
Table 3 – Applicable test method depending on the materials . 9
Table 4 – Test conditions for rotation test at 350 °C . 16
Table 5 – Test conditions for rotation test at 350 °C
...
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