1、BRITISH STANDARD BS EN ISO 17836:2004 Thermal spraying Determination of the deposition efficiency for thermal spraying The European Standard EN ISO 17836:2004 has the status of a British Standard ICS 25.220.20 BS EN ISO 17836:2004 This British Standard was published under the authority of the Standa
2、rds Policy and Strategy Committee on 8 December 2004 BSI 8 December 2004 ISBN 0 580 45005 8 National foreword This British Standard is the official English language version of EN ISO 17836:2004. It is identical with ISO 17836:2004. The UK participation in its preparation was entrusted to Technical C
3、ommittee STI/40, Thermally sprayed inorganic finishes, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this
4、 document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a cont
5、ract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals f
6、or change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, pages 2 to 12, an inside back cover and a back cover. The BSI co
7、pyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO17836 November2004 ICS25.220.20 Englishversion ThermalsprayingDeterminationofthedepositionefficiencyfor
8、 thermalspraying(ISO17836:2004) ProjectionthermiqueDterminationdurendementde dptenprojectionthermique(ISO17836:2004) ThermischesSpritzenBestimmungderAuftragsratebeim thermischenSpritzen(ISO17836:2004) ThisEuropeanStandardwasapprovedbyCENon1July2004. CENmembersareboundtocomplywiththeCEN/CENELECIntern
9、alRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeoffici
10、alversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,
11、Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre
12、:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO17836:2004:EEN ISO 17836:2004 (E) 2 Contents page Foreword3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Test pieces, equipment,
13、 working and auxiliary materials .5 5 Test implementation6 6 Determination of deposition efficiency .7 7 Test report 7 8 Designation 8 Annex A (normative) Test piece Pipe (A) .9 Annex B (normative) Test piece Plate (B) 10 Annex C (informative) Record for the determination of the deposition efficienc
14、y rate Example 11 Annex ZA (normative) Normative references to international publications with their relevant European publications 12 EN ISO 17836:2004 (E) 3 Foreword This document (EN ISO 17836:2004) has been prepared by Technical Committee CEN/TC 240 “Thermal spraying and thermally sprayed coatin
15、gs”, the secretariat of which is held by DIN, in collaboration with Technical Committee ISO/TC 107 “Metallic and other inorganic coatings”. 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 May 2005
16、, and conflicting national standards shall be withdrawn at the latest by May 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard : Austria, Belgium, Cyprus, Czech Republic, Denmark, Est
17、onia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN ISO 17836:2004 (E) 4 Introduction This document includes the definitions for de
18、termining the deposition efficiency for thermal spraying. The document describes the test implementation procedure to determine the deposition efficiency for an individual spray process and a spray material when using a defined test piece. The deposition efficiency calculated on a test piece accordi
19、ng to this document needs not to correspond to the deposition efficiency on a component. EN ISO 17836:2004 (E) 5 1 Scope It is essential to apply this document if data concerning the deposition efficiency of a spray process in connection with a defined spray material are required. This document defi
20、nes the procedure for determining the deposition efficiency for a thermal spray process in connection with a spray material and related equipment and auxiliary materials. It is applicable for all thermal spray processes (see EN 657) and all wire, rod, cord and powder spray materials. 2 Normative ref
21、erences 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) applies. EN 657, Thermal spraying Terminology, cla
22、ssification. EN 1274, Thermal spraying Powders Composition Technical supply conditions. EN 13507, Thermal spraying Pre-treatment of surfaces of metallic parts and components for thermal spraying. EN ISO 14919, Thermal spraying Wires, rods and cords for flame and arc spraying Classification Technical
23、 supply conditions (ISO 14919:2001). 3 Terms and definitions For the purposes of this document, the following term and definition applies. 3.1 deposition efficiency (DE) ratio of the mass of the spray material deposited on the test piece under standard conditions to the mass of the spray material re
24、quired and fed through for this purpose in % 4 Test pieces, equipment, working and auxiliary materials a) Test pieces can be selected from: 1) a test pipe, dimensions according to Annex A; 2) a test plate, dimensions according to Annex B. b) Equipment/working materials: 1) spray equipment; 2) handli
25、ng system (if spray process is mechanised); 3) metering device (feeder for wire, rod, cord or powder); 4) fuel gases/fuel/electric energy; 5) plasma gases; 6) spray cabin; EN ISO 17836:2004 (E) 6 7) filter/exhaust system. c) Auxiliary materials: 1) clamping device for test piece; 2) scales (minimum
26、accuracy 1 g). 5 Test implementation The test pieces shall be prepared according to specifications, e.g. degreased and grit-blasted (see also EN 13507). This procedure shall be documented. The mass of the prepared test piece shall be determined and documented. The feed rate of the spray material sha
27、ll be determined in g/min in at least two run-throughs in order to calculate the mean value. The test pieces shall be coated applying the spray parameters selected. If risk of overheating exists, suitable cooling steps shall be taken. All parameters shall be documented in a record. The coating shall
28、 be carried out on a minimum of two test pieces of the same type with a coating time for each test piece of 30 s. Here the torch shall be swung in and swung out at high speed using the shortest possible way. The swing-in shall not take place until the spray jet is fully formed and stabilised (see Fi
29、gure 1). After each spray test the change in mass of the test pieces shall be determined and documented (see Annex C). The mass of the spray material required is calculated using the spray time and feed rate. The mass shall be documented (see Annex C). EN ISO 17836:2004 (E) 7 Key Y Feed rate t Time
30、a Torch position 1 Stabilisation 2 Swing in 3 on test piece 4 Swing out Figure 1 Test procedure 6 Determination of deposition efficiency The calculation of the deposition efficiency shall be carried out for each individual test piece and the mean value calculated. % 100 sm tp D = m m where Ddepositi
31、on efficiency, in %; m tpmass difference of test piece, in g; m smmass of spray material fed through, in g; (It is the product of feed rate, in g/min, and spray time, in s, divided by 60). 7 Test report The test results shall be entered in the record (see Annex C). The mean value shall be calculated
32、 from the test results. The test report for determining the deposition efficiency shall include the following minimum of information: a) type of spray equipment and gun; b) feed mechanism of spray material; c) type of spray process; EN ISO 17836:2004 (E) 8 d) relevant spray parameters depending on t
33、he spray process (see spray record number); e) type of test piece; f) preparation of test pieces; g) spray material depending on type of alloy in accordance with EN 1274 for powders or EN ISO 14919 for wires, rods and cords, as applicable; h) mean value of feed rate; i) mean value of deposition effi
34、ciency. 8 Designation The designation of the deposition efficiency for the pipe (A) or the plate (B) shall consist of the following parts: 1) Document number; 2) Test piece (A or B according to Annex A or B) with mean value of deposition efficiency in %. EXAMPLE: EN ISO 17836 A 50 EN ISO 17836:2004
35、(E) 9 Annex A (normative) Test piece Pipe (A) The test piece shall be traversed by the spray jet, whereby the surface to be coated is reduced by at least one spray jet width from the edges. Dimensions in millimetres Key w Spray jet width Figure A.1 Pipe, 150 mm 200 mm 3 mm EN ISO 17836:2004 (E) 10 A
36、nnex B (normative) Test piece Plate (B) The test piece shall be traversed by the spray jet, whereby the surface to be coated is reduced by at least one spray jet width from the edges. Dimensions in millimetres Key w Spray jet width Figure B.1 Plate, 300 mm 300 mm 1 mm EN ISO 17836:2004 (E) 11 Annex
37、C (informative) Record for the determination of the deposition efficiency rate Example Installation:.Gun: Feed mechanism: Nozzle: Spray process according to EN 657: Spray parameters: Test piece: Pipe according to EN ISO 17836, Annex A Plate according to EN ISO 17836, Annex B Preparation of the test
38、piece: Spray material according to EN ISO 14919 / EN 1274: Lot no.:. Powder feed rate/Wire feed rate:. Determination of feed rate mean value: Value Unit Test 1 Test 2 Feed rate (g/min) Mean value (g/min) Determination of deposition efficiency mean value: Value Symbol Unit Test 1 Test 2 Pre-test mass
39、 of test piece m tp1g Post-test mass of test piece m tp2g Mass difference of the test piece m tpg Feed rate mean value (g/min) Spray time t Ss Mass of the spray material fed through m smg Deposition efficiency Di% Mean value of the deposition efficiency D% Date: . Name:Signature:. EN ISO 17836:2004
40、(E) 12 Annex ZA (normative) Normative references to international publications with their relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text a
41、nd the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies.
42、Publication Year Title EN Year ISO 14917 1999 Thermal spraying Terminology, classification EN 657 1994 ISO 14232 2000 Thermal spraying Powders Composition and technical supply conditions EN 1274 1996 ISO 14919 2001 Thermal spraying Wires, rods and cords for flame and arc spraying Classification Tech
43、nical supply conditions EN ISO 14919 2001 blankBS EN ISO 17836:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international lev
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