EN 1395-5:2018

SLOVENSKI STANDARD
01-december-2018
1DGRPHãþD
SIST EN 1395-5:2007
9URþHEUL]JDQMH3UHY]HPQLSUHVNXVLRSUHPH]DYURþHEUL]JDQMHGHO
3OD]HPVNREUL]JDQMHYNRPRUDK
Thermal spraying - Acceptance inspection of thermal spraying equipment - Part 5:
Plasma spraying in chambers
Thermisches Spritzen - Abnahmeprüfungen für Anlagen zum thermischen Spritzen - Teil
5: Plasmaspritzen in Kammern
Projection thermique - Contrôle d'acceptation du matériel de projection thermique -
Partie 5 : Projection plasma sous enceinte
Ta slovenski standard je istoveten z: EN 1395-5:2018
ICS:
25.220.20 Površinska obdelava Surface treatment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 1395-5
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2018
EUROPÄISCHE NORM
ICS 25.220.20 Supersedes EN 1395-5:2007
English Version
Thermal spraying - Acceptance inspection of thermal
spraying equipment - Part 5: Plasma spraying in chambers
Projection thermique - Contrôle d'acceptation du Thermisches Spritzen - Abnahmeprüfungen für
matériel de projection thermique - Partie 5 : Projection Anlagen zum thermischen Spritzen - Teil 5:
au plasma en chambre Plasmaspritzen in Kammern
This European Standard was approved by CEN on 9 April 2018.

CEN 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 CEN
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 CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1395-5:2018 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Principles of acceptance inspection . 5
4.1 General . 5
4.2 Typical components . 5
5 Procedure for acceptance inspection of vacuum components . 5
5.1 General . 5
5.2 Low pressure performance of the pump station . 6
5.3 Low pressure performance of the chamber . 6
5.3.1 Preparation . 6
5.3.2 Determination of the leakage rate (Q ) . 6
L
5.3.3 Assessment of leakage rate . 7
5.4 Function test . 7
6 Designation . 8
7 Inspection report . 8
Annex A (informative) Inspection report for chamber and pump systems for plasma spraying in
controlled atmosphere (initial test/retest) . 9
Annex B (informative) Diagram for the chronological sequence of the pressure change in chamber
and an example for the calculation of the leakage rate. 11
B.1 Diagram . 11
B.2 Example for the calculation . 12
Bibliography . 13
European foreword
This document (EN 1395-5:2018) has been prepared by Technical Committee CEN/TC 240 “Thermal
spraying and thermally sprayed coatings”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2019, and conflicting national standards
shall be withdrawn at the latest by February 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1395-5:2007.
In comparison to the previous edition EN 1395-5:2007, the following technical changes have been
made:
a) normative references were updated;
b) added a clause regarding the determination and the assessment of leakage rate;
c) added in Annex B an example for calculation of leakage rate
EN 1395 series consists of the following Parts, under the general title Thermal spraying — Acceptance
inspection of thermal spraying equipment:
— Part 1: General requirements;
— Part 2: Flame spraying including HVOF;
— Part 3: Arc spraying;
— Part 4: Plasma spraying;
— Part 5: Plasma spraying in chambers;
— Part 6: Manipulator systems;
— Part 7: Powder feed systems.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
1 Scope
This European Standard specifies requirements for the acceptance inspection of thermal spraying
equipment, in this case the pressurized part only for low pressure and controlled atmosphere plasma
spraying, used in spray jobs to produce thermally sprayed coatings of reproducible quality.
This part is intended to be used in conjunction with EN 1395-1, which includes general requirements
and explanations of procedures.
The plasma spraying system itself is intended to be acceptance inspected according to EN 1395-4.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN ISO 14917, Thermal spraying - Terminology, classification (ISO 14917)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 14917 and the following
apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
final pressure
asymptotically approached value that the pressure reaches in a closed flanged vacuum pump system at
usual operating conditions and without further gas inlet
3.2
degassing
gaseous de-sorption which can be accelerated by physical processes, e.g. by evacuation, heating
3.3
vapour de-sorption
spontaneous evaporation as the decreasing pressure depresses the boiling point to the ambient
temperature
3.4
gas ballast of a vacuum pump
controlled admission of an amount of gas, in general into the compression room of a
vacuum pump to avoid or minimise the condensate formation within the vacuum unit
3.5
gas load
total mass flow rate that is applied into the vacuum system
−1
Note 1 to entry: Formula: p × V/t. The unit is mbar l s .
3.6
leak
leakiness within the system caused by material or processing faults or wrong handling of seals
Note 1 to entry: A leak can occur in the chamber or at joint elements.
3.7
leakage rate
Q
L
gas flow rate of a leak
Note 1 to entry: Formula: p × V/t. Q depends on the pressure difference and the temperature. The unit is
L
3 −1 −1
1 Pa m s = 1 × 10 mbar l s .
3.8
suction rate
flow rate of the gas pumped out of the system
3 −1 −1
Note 1 to entry: Formula: p × V/t. The unit is 1 Pa m s = 1 × 10 mbar l s .
3.9
controlled atmosphere
atmosphere inside the chamber used for thermal spraying where the pressure is maintained within
small tolerances
4 Principles of acceptance inspection
4.1 General
5.1 to 5.4 reveal state of the art technology in thermal spraying equipment. The minimum requirements
to achieve a stable parameter setting and maintenance are given in Annex A.
4.2 Typical components
A low pressure plasma spraying system contains the following components:
— vacuum pumping unit;
— vacuum chamber;
— manipulator systems;
— plasma spraying equipment.
5 Procedure for acceptance inspection of vacuum components
5.1 General
All values mentioned in 5.2 are valid for a new and clean system only.
The acceptance inspection of the low pressure system is divided into the acceptance test of the vacuum
pumping unit and of the vacuum chamber.
5.2 Low pressure performance of the pump station
For the acceptance test of the vacuum pumps the pump system is to be separated from the chamber
mechanically or locked by means of a vacuum slide valve.
The evacuation time from atmospheric pressure to 1 mbar is regarded as an acceptance criteria. This
time period for the separated pumping unit shall not exceed 5 min. Subsequently the final vacuum of
−3
the pumping system is checked. With this, a value lower than 5 × 10 mbar (0,005 mbar) shall be
reached, depending on the type of pump unit, within a period of 30 min if nothing else is specified
among the contracting parties.
5.3 Low pressure performance of the chamber
5.3.1 Preparation
The chamber volume should be determined according to its internal geometric dimensions.
The complete system is consequently tested without the internal set-up inside the chamber (e.g.
manipulator). In order to carry out the vacuum tests it is necessary to maintain the chamber in a
condition that is free of dust and any contamination. Therefore, the system should be evacuated for a
longer time period to minimize pollutions (e.g. removal of de-sorptions of steam and air molecules
adsorpted on the chamber walls). Ventilation is recommended to flood the chamber with argon gas
while pumping.
During the evacuation tests the chamber should be opened for a time period (5 min maximum) to
simulate charging of parts to be sprayed. Then, the chamber door sealing is to be cleaned and the
system is to be evacuated. The time period for evacuating from atmospheric pressure to 1 mbar should
not exceed 15 min. This value is only valid for a chamber in the new condition. Any pollutants by spray
material deposits can influence this value significantly. Subsequently the leakage rate of the complete
system has to be determined.
5.3.2 Determination of the leakage rate (Q )
L
−2
a) The chamber should be evacuated to less than 5 × 10 mbar (0,05 mbar). This should not take
longer than 30 min.
b) The valve – if applicable – between the vacuum chamber and the vacuum pumping system shall be
closed.
c) For determination of the leakage rate, the vacuum pump system shall be switched off and the
pressure rise in the chamber, as well as in the pump system shall be measured.
d) For the determination of the leakage rate for a comparable value without the influence of gas
pollutions and de-sorption, it is recommended to start t
...