1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58equipment Part 4: Plasma sprayingThe European Standard EN 1395-4:2007 has the status of a British S
2、tandardICS 25.220.20Thermal spraying Acceptance inspection of thermal spraying BRITISH STANDARDBS EN 1395-4:2007BS EN 1395-4:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2007 BSI 2007ISBN 978 0 580 50278 1Amendments issued
3、since publicationAmd. No. Date Commentssecretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British S
4、tandard was published by BSI. It is the UK implementation of EN 1395-4:2007. This standard together with BS EN 1395-1, BS EN 1395-2, BS EN 1395-3, BS EN 1395-5, BS EN 1395-6 and BS EN 1395-7 supersedes BS EN 1395:1996.The UK participation in its preparation was entrusted to Technical Committee STI/4
5、0, Thermally sprayed inorganic finishes.A list of organizations represented on STI/40 can be obtained on request to its EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1395-4January 2007ICS 25.220.20 Supersedes EN 1395:1996 English VersionThermal spraying - Acceptance inspection of thermal sprayin
6、gequipment - Part 4: Plasma sprayingProjection thermique - Contrle dacceptation du matrielde projection thermique - Partie 4: Projection plasmaThermisches Spritzen - Abnahmeprfungen fr Anlagenzum thermischen Spritzen - Teil 4: PlasmaspritzenThis European Standard was approved by CEN on 23 December 2
7、006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on
8、 application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Cent
9、re has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
10、Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any mean
11、s reservedworldwide for CEN national Members.Ref. No. EN 1395-4:2007: EEN 1395-4:2007 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Principles of acceptance inspection4 5 Procedure of acceptance inspection.5 6 Designation 6 7 Inspection report6 Annex A
12、 (informative) Inspection report for plasma spraying equipment (initial test/retest).7 Bibliography 9 EN 1395-4:2007 (E) 3 Foreword This document (EN 1395-4:2007) has been prepared by Technical Committee CEN/TC 240 “Thermal spraying and thermally sprayed coatings”, the secretariat of which is held b
13、y 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 July 2007, and conflicting national standards shall be withdrawn at the latest by July 2007. This document together with EN 1395-1, 1395-2, 1
14、395-3, 1395-5, 1395-6 and 1395-7 supersedes EN 1395:1996. EN 1395 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 s
15、praying; 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 organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus
16、, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 1395-4:2007 (E) 4 1 Scope This European
17、Standard specifies requirements for the acceptance inspection of thermal spraying equipment, in this case plasma spraying, used in spray jobs to produce thermally sprayed coatings of reproducible quality. This part should be used in conjunction with EN 1395-1, which includes general requirements and
18、 explanations of procedures. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applie
19、s. EN 657:2005, Thermal spraying Terminology, classification EN 1274:2004, Thermal spraying Powders Composition, technical supply conditions EN 1395-7, Thermal spraying Acceptance inspection of thermal spraying equipment Part 7: Powder feed systems 3 Terms and definitions For the purposes of this do
20、cument, the terms and definitions given in EN 657:2005 and the following apply. 3.1 high voltage ignition device unit that generates a high voltage (kV) and low current (mA) between the electrodes of the plasma spraying torch in order to ignite the arc 4 Principles of acceptance inspection 4.1 Gener
21、al The following clauses reveal state of the art technology in thermal spray equipment and the minimum requirements concerning a stable parameter setting and maintenance according to the classes given in Annex A. 4.2 High-voltage ignition device Other components and functions of the spraying equipme
22、nt and other machines and/or equipment operated near by to the spraying equipment shall not be affected by operation of the high-voltage ignition device. 4.3 Plasma gases The plasma spraying equipment shall be designed and installed in such a manner, that safe operation with plasma gases specified b
23、y the user will be achieved. 4.4 Plasma spray nozzle Processing of the spraying powder shall be possible without producing any disturbing deposits on and/or in the nozzle. Nozzles with different shapes and powder ports (internal or external) may be used for special applications. EN 1395-4:2007 (E) 5
24、 4.5 Spraying powder feed unit The powder feed unit shall be suitable for operation with the spraying equipment to be taken. The unit shall permit uniform processing of the powder required. It shall be possible to adjust the powder feed rate. The set points shall be constant and reproducible, which
25、is a precondition for this being adequate and constant carrier gas pressure and flow. 5 Procedure of acceptance inspection 5.1 General Spraying equipment shall be deemed properly supplied for all suitable spraying applications and for use with all suitable spraying materials required for the sprayin
26、g process if it complies with the following requirements: 5.2 Electrical power Proof of the power rating required shall be given by 20 min of spraying with the parameters for aluminium oxide according to EN 1274:2004, 12.1 as recommended by the equipment manufacturer. During the test, the following
27、items will be examined: electrical control; gas control; cooling water temperature. Limits of deviation: see Annex A; Class A and Class B. After stabilisation of arc and plasma, the deviation of the voltage (variable parameter) from the set point shall not exceed 3 % (Class A) and 12 % (Class B). 5.
28、3 High-voltage ignition device The high-voltage ignition device shall be deemed to meet the requirements given in 4.2 if it does not interfere with any appliances and functions of the spraying equipment during the test as specified in 5.2. There should be no excessive erosion wear visible on the noz
29、zle (spark). 5.4 Plasma gases The system shall be deemed to comply with the specified requirements if the following requirements are satisfied by the acceptance inspection. The values of gas pressure and gas flow shall not deviate by more than 1,5 % (Class A) and 5 % (Class B) from the set points ov
30、er a 20 min period of spraying. If the secondary gas is the variable parameter, the deviations from the set point shall not exceed 3 % (Class A) and 12 % (Class B) after stabilisation. Setting the primary gas pressure and/or flow rate shall not affect the corresponding values of the secondary gas an
31、d carrier gas and vice versa. 5.5 Plasma spray nozzle The nozzle shall be deemed to comply with the requirements specified in 4.4 if there are no disturbing deposits of spraying material on or in the nozzle when testing as specified in 5.2. EN 1395-4:2007 (E) 6 5.6 Powder feed unit The suitability o
32、f the system to process powders as specified in 4.5 shall be tested according to EN 1395-7. 6 Designation Acceptance inspection of the thermal spraying equipment for plasma spraying shall be designated as follows: Acceptance inspection according to EN 1395-4. 7 Inspection report An example for the i
33、nspection report is given in Annex A. EN 1395-4:2007 (E) 7 Annex A (informative) Inspection report for plasma spraying equipment (initial test/retest) The initial test/retest fulfils the requirements of the acceptance inspection according to EN 1395-4. User: . Manufacturer: Year of manufacture: Type
34、 of equipment:. Type of spraying gun: . Powder used for testing:. Type of powder feed unit: . Size range: CE-documentation complete: yes / no Change after 20 minute continuous testing Limit Evaluation actual value in % Item tested, where applicable Full scale Set point min. max. maximum deviation in
35、 % Class A Class Bpassed failed current A 1,5 5 Electrical power voltage V 1,5 5 pressure bar 1,5 5 Primary gas flow Nl/min1) 1,5 5 pressure bar 1,5 5 Secondary gas flow Nl/min1) 1,5 5 pressure bar 1,5 5 Carrier gas flow Nl/min1) 1,5 5 flow l/min 5 10 Cooling water inlet temperature to spray gun C 5
36、 C 10 C 1)Referred to temperature 0 C and normal pressure (1 013,25 hPa). EN 1395-4:2007 (E) 8 High-voltage ignition device (interferes with other devices or functions): yes / no Deposits: yes / no Nozzle disturbance: yes / no Time needed for stabilisation: . Automatic energy shutdown: Lack of gas:
37、yes / no Lack of cooling water: yes / no Limits of error of measuring instruments: % of set point (max. 5 %) Class 2,5 2): yes / no Comments:. . . . . . The thermal spraying equipment has been accepted: yes / no Date: Inspectors signature: . Date: Customers signature: Date: Suppliers signature:. 2)M
38、aximum permissible error expressed by percentage of measuring span. EN 1395-4:2007 (E) 9 Bibliography 1 EN 1395-1, Thermal spraying Acceptance inspection of thermal spraying equipment Part 1: General requirements BS EN BSI389 Chiswick High RoadLondonW4 4AL1395-4:2007BSI British Standards Institution
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