DIN EN 13507-2010 Thermal spraying - Pre-treatment of surfaces of metallic parts and components for thermal spraying German version EN 13507 2010《热喷涂 热喷涂金属部件和元件表面预处理 德文版本EN 13507-2.pdf

1、June 2010 Translation by DIN-Sprachendienst.English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 25

2、.220.10!$i,)“1700906www.din.deDDIN EN 13507Thermal spraying Pre-treatment of surfaces of metallic parts and components for thermalsprayingEnglish translation of DIN EN 13507:2010-06Thermisches Spritzen Vorbehandlung von Oberflchen metallischer Werkstcke und Bauteile fr das thermischeSpritzenEnglisch

3、e bersetzung von DIN EN 13507:2010-06Projection thermique Traitement pralable de surface de pices et composants mtalliques pour projectionthermiquesTraduction anglaise de DIN EN 13507:2010-06SupersedesDIN EN 13507:2001-07www.beuth.deDocument comprises pagesIn case of doubt, the German-language origi

4、nal shall be considered authoritative.1206.10 DIN EN 13507:2010-06 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 240 “Thermal spraying and thermally sprayed coatings” (Secretariat: DIN, Germany). The responsible German body inv

5、olved in its preparation was the Normenausschuss Schweitechnik (Welding Standards Committee), Joint Working Committee NA 092-00-14 AA Thermisches Spritzen und thermisch gespritzte Schichten (DVS AG V 7). The European Standards referred to in clause 2 and in the bibliography of the EN have been publi

6、shed as the corresponding DIN EN or DIN EN ISO Standards. Amendments This standard differs from DIN EN 13507:2001-07 as follows: a) Normative references in clause 2 have been updated. b) Clauses 3 “Principles”, and subclauses 4.1 “Degreasing” (now 4.2) and 4.2.1 “Cleanliness” (now 4.3.1) have been r

7、evised and shortened. c) Subclauses 4.2.3.3 “Copper refinery slag and coal furnace slag”, 4.2.3.4 “Quartz sand” and 4.4 “Roughening by electric spark” have been deleted. d) In 4.2.5 “Examination of grit blasted surfaces” (now 4.3.5) references to EN ISO 8503-2 and EN ISO 8503-4 have been added. e) 4

8、.7 has been revised under the aspects of precautions for health, safety and environmental protection. Previous editions DIN 8567: 1965-04, 1969-04, 1976-04, 1984-08, 1994-09 DIN EN 13507: 2001-07 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13507 February 2010 ICS 25.220.10 Supersedes EN 1

9、3507:2001English Version Thermal spraying - Pre-treatment of surfaces of metallic parts and components for thermal spraying Projection thermique - Traitement pralable de surface de pices et composants mtalliques pour projection thermiques Thermisches Spritzen - Vorbehandlung von Oberflchen metallisc

10、her Werkstcke und Bauteile fr das thermische Spritzen This European Standard was approved by CEN on 9 January 2010. 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

11、 alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on 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 b

12、y translation under the responsibility of a CEN member into its own language and notified to the CEN 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

13、, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMI

14、TEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13507:2010: EEN 13507:2010 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Principles 44 Meth

15、ods of surface preparation .54.1 General 54.2 Degreasing .54.3 Grit blasting 54.4 Threading/grooving .74.5 Cleaning by reversed transferred arc 74.6 Bond coatings 74.7 Precautions for health, safety and environmental protection 75 Preheating 76 Masking of areas not to be coated .87 Effect of pre-tre

16、atment on the fatigue strength 8Bibliography 9DIN EN 13507:2010-06 EN 13507:2010 (E) 3 Foreword This document (EN 13507:2010) 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 b

17、e given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2010, and conflicting national standards shall be withdrawn at the latest by August 2010. Attention is drawn to the possibility that some of the elements of this document

18、may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13507:2001. This standard differs from EN 13507:2001 as follows: a) normative references have been reviewed; b) Clause 3 (Principles) has b

19、een modified; c) in Clause 4 (Methods of surface preparation), paragraphs regarding “Degreasing“ and “Cleanliness“ have been reviewed and shortened; d) 4.2.3.3 (Copper refinery slag and coal furnace slag), 4.2.3.4 (Quartz sand) and 4.4 (Roughening by electric spark) have been deleted; e) in 4.2.5 (E

20、xamination of grit blasted surfaces) reference to EN ISO 8503-2 and EN ISO 8503-4 have been added. New number of this subclause is 4.3.5; f) 4.7 has been reviewed under the aspects of precautions for health, safety and environmental protection. According to the CEN/CENELEC Internal Regulations, the

21、national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherla

22、nds, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 13507:2010-06 EN 13507:2010 (E) 4 1 Scope This European Standard specifies the processing of surface preparation for thermal spraying. Important principles indicated in this European

23、 Standard should be taken into consideration when surfaces of metallic parts are to be prepared for thermal spraying. This European Standard applies for production of new parts as well as for the repair of worn parts. This European Standard does not apply for thermal spraying in the case of protecti

24、on against atmospheric corrosion by coatings of zinc and/or aluminium and their alloys, for which EN ISO 2063 applies. 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 r

25、eferences, the latest edition of the referenced document (including any amendments) applies. EN ISO 8501-1, Preparation of steel substrates before application of paints and related products Visual assessment of surface cleanliness Part 1: Rust grades and preparation grades of uncoated steel substrat

26、es and of steel substrates after overall removal of previous coatings (ISO 8501-1:2007) EN ISO 11124-1, Preparation of steel substrates before application of paints and related products Specifications for metallic blast-cleaning abrasives Part 1: General introduction and classification (ISO 11124-1:

27、1993) EN ISO 11124-2, Preparation of steel substrates before application of paints and related products Specifications for metallic blast-cleaning abrasives Part 2: Chilled-iron grit (ISO 11124-2:1993) EN ISO 11126-1, Preparation of steel substrates before application of paints and related products

28、Specifications for non-metallic blast-cleaning abrasives Part 1: General introduction and classification (ISO 11126-1:1993, including Technical Corrigenda 1:1997 and 2:1997) 3 Principles The surface preparation of a work piece has a substantial effect on the quality of the sprayed coating especially

29、 with regard to its adhesion to the substrate. To achieve a sufficient adhesive strength the metallic surface shall be processed until a technically clean interface is generated. The surface to be prepared shall be accessible for grit blasting. EN 15520 gives information regarding suitable component

30、 design. Welding splashes and residues of welding slag shall be removed, and weld seams and brazed or soldered joints shall be prepared with particular accuracy. Oxides, oil, grease and other contamination shall be removed. The roughness of the surface shall enable a good interlocking of the sprayed

31、 coating to the substrate. Grit blasting is a suitable method for obtaining appropriate roughened metallic surfaces, thereby also enlarging the effective area. DIN EN 13507:2010-06 EN 13507:2010 (E) 5 The surface to be sprayed shall be kept dry during the preparation and spraying process. For outdoo

32、r spraying this requirement shall be met by taking suitable precautions. The prepared surface shall be coated subsequently after carrying out the grit blasting without any undue loss of time1). 4 Methods of surface preparation 4.1 General Depending upon the function of the sprayed coating and the in

33、itial condition of the surface, different preparation procedures are used. In any case scale, rust, dust and other contaminants shall be removed by mechanical cleaning. 4.2 Degreasing Oil and grease contaminants shall be removed thoroughly prior to processing the surface. In particular attention sha

34、ll be given to bores, slots and channels. Design of components shall be such that fluids can drain out. Degreasing can be done by heating, dipping and spraying processes with or without additional mechanical support by ultrasonic cleaning, brushing or steam jet blower. Aqueous wash solutions or orga

35、nic solvents are suitable. For the application of wash solutions a mild alkaline cleaner with a high content of surfactants may be preferred. Whenever possible cleaner free of phosphate should be used. The application of chlorinated or fluorinated hydrocarbons should be avoided due to their detrimen

36、tal effect on health and the environment. Subsequent rinsing and drying is necessary. For health, safety and environment aspects see 4.7. 4.3 Grit blasting 4.3.1 Cleanliness For thermal spraying the surface shall be sufficiently cleaned and roughened by applying a suitable grit. The grit blasting pr

37、ocess shall be continued until the area to be coated shows a metallic surface with a uniform structure according to EN ISO 8501-1 Sa 3. Unwanted loss of material, which can occur by excessive blasting, shall be considered. Generally, the preparation grade Sa 3 is necessary but often not sufficient f

38、or the purpose. If necessary, the required condition of cleanliness and roughness shall be agreed between the contracting parties. The preparation by grit blasting will vary depending on the type and size of the abrasive, blasting parameters, e.g. blasting time, distance, angle, particle velocity an

39、d machine type. Furthermore, the wear rate of the abrasives substantially effects the properties of a grit blasted surface. Therefore, the operating parameters for grit blasting shall be adequate to meet the required roughness criteria and, if necessary, have to be optimised by grit blasting of test

40、 pieces of similar material. For health, safety and environment aspects see 4.7. 1) Time permissible for a break depends upon material to be coated and the influences exerted on the prepared surface, e.g. dust, vapour and moisture (temperature below dew point, rain, etc.). DIN EN 13507:2010-06 EN 13

41、507:2010 (E) 6 4.3.2 Roughness Since roughness is not the only requirement of the surface preparation for thermal spraying, details of the roughness (peak-to-valley height) have been disregarded as well as their control. Specific roughness patterns shall be agreed and these will serve as reference f

42、or the profile required. In EN ISO 8503-1 to EN ISO 8503-4, specifications and definitions for ISO surface profile comparators for the assessment of abrasive blasted, cleaned surfaces and methods for the manufacturing of test pieces are outlined. When assessing the roughness, care shall be taken to

43、avoid contamination of the prepared surface. Adequate precautions shall be taken to ensure removal of oil and moisture from the air supply as these contaminants have a harmful effect on the quality of the surface preparation and thus on the bond strength of the sprayed coating. EN ISO 12944-4 gives

44、information regarding suitable grit blasting equipment. 4.3.3 Abrasives 4.3.3.1 General The blasting medium can be selected according to the standards of EN ISO 11126-3, EN ISO 11126-4, EN ISO 11126-7 and EN ISO 11124-2. It shall be clean and dry. Circulating blasting media shall not have been used

45、before for other purposes where impurities may have been introduced, e.g. during grit blasting of plastics, removal of coatings, blasting of oily or contaminated surfaces. Only sharp edged blasting media will generate a suitable roughness, therefore, visual checking of the grits particle size and sh

46、ape is recommended. Fine dust and rounded particles shall be removed. 4.3.3.2 Fused alumina and silicon carbide Fused alumina (EN ISO 11126-7) and silicon carbide exert an intense effect due to their high hardness and sharp edges and are suited therefore for blasting of very hard surfaces. Due to th

47、e limited lifetime of alumina and silicon carbide (SiC) grit the degree of deterioration shall be assessed by regular inspection. Particular care shall be taken when blasting with SiC. Optimising the blasting parameter (e.g. pressure, angle, grit size, distance) is necessary to minimise the number o

48、f particles that are embedded. 4.3.3.3 Chilled iron grit Chilled iron grit has proved to be well suited for the preparation of surfaces for thermal spraying. The particle shape shall retain a sharp cutting edge according to EN ISO 11124-2. It is distinguished by its long edge life. However, when bla

49、sting non-ferrous substrate metals or stainless steel there is an enhanced corrosion probability. 4.3.3.4 Particle size range The mean particle size of the abrasive shall be adapted to the respective application (see also EN ISO 12944-4). The appropriate particle size range shall be selected according to the standards EN ISO 11126-1 and EN ISO 11124-1. 4.3.4 Post cleaning after grit blasting A thorough cleaning of the blasted surface by removing grit residues and dust is of great importan