EN 13507-2018 Thermal spraying - Pre-treatment of surfaces of metallic parts and components for thermal spraying.pdf

1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Thermal spraying - Pre-treatment of surfaces of metallic parts and components for thermal sprayingBS EN 13507:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13507 August 2018 ICS 25.220.10; 25.220.20 Supersede

2、s EN 13507:2010English 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 met

3、allischer Werkstcke und Bauteile fr das thermische Spritzen 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

4、 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 lan

5、guage 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, Denma

6、rk, 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 CO

7、MMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR 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 worldwide for CEN national Members. Ref. No. EN 13507:2018 ENationa

8、l forewordThis British Standard is the UK implementation of EN 13507:2018. It supersedes BS EN 13507:2010, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee STI/40, Thermal spraying and thermally sprayed coatings.A list of organizations represented on th

9、is committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 93713 2ICS

10、 25.220.10Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 1

11、3507:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13507 August 2018 ICS 25.220.10; 25.220.20 Supersedes EN 13507:2010English Version Thermal spraying - Pre-treatment of surfaces of metallic parts and components for thermal spraying Projection thermique - Traitement pralable de surface de

12、 pices et composants mtalliques pour projection thermiques Thermisches Spritzen - Vorbehandlung von Oberflchen metallischer Werkstcke und Bauteile fr das thermische Spritzen This European Standard was approved by CEN on 9 April 2018. CEN members are bound to comply with the CEN/CENELEC Internal Regu

13、lations 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 memb

14、er. 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. C

15、EN 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,

16、 Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of expl

17、oitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13507:2018 EBS EN 13507:2018EN 13507:2018 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 4 4 Principles . 4 5 Methods of surface preparation 5 5.1 Ge

18、neral 5 5.2 Degreasing . 5 5.3 Grit blasting . 5 5.3.1 Cleanliness . 5 5.3.2 Roughness 6 5.3.3 Abrasives 6 5.3.4 Post cleaning after grit blasting . 6 5.3.5 Examination of grit blasted surfaces 7 5.4 Threading/grooving . 7 5.5 Cleaning by reversed transferred arc 7 5.6 Bond coatings . 7 5.7 Precauti

19、ons for health, safety and environmental protection . 7 6 Preheating . 7 7 Masking of areas not to be coated . 8 8 Effect of pre-treatment on the fatigue strength . 8 Bibliography 9 BS EN 13507:2018EN 13507:2018 (E) 3 European foreword This document (EN 13507:2018) has been prepared by Technical Com

20、mittee 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 nationa

21、l 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 13507:2010

22、. This third edition of EN 13507 cancels and replaces EN 13507:2010, which has been technically revised and, in addition to the change in number, contains the following changes: update of normative references; Revision of subclause 5.6 (Bond coatings). According to the CEN-CENELEC Internal Regulatio

23、ns, 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,

24、 Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 13507:2018EN 13507:2018 (E) 4 1 Scope This document specifies the processing of surface preparation for thermal spraying

25、. Important principles indicated in this European Standard are intended to be taken into consideration when surfaces of metallic parts are to be prepared for thermal spraying. This document applies for production of new parts as well as for the repair of worn parts. This document does not apply for

26、thermal spraying in the case of protection against atmospheric corrosion by coatings of zinc and/or aluminium and their alloys, for which EN ISO 2063-1:2017 and EN ISO 2063-2:2017 apply. 2 Normative references The following documents are referred to in the text in such a way that some or all of thei

27、r 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 8501-1, Preparation of steel substrates before application of paints and related

28、 products - Visual assessment of surface cleanliness - Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings (ISO 8501-1) EN ISO 11124-1, Preparation of steel substrates before application of paints and related prod

29、ucts - Specifications for metallic blast-cleaning abrasives - Part 1: General introduction and classification (ISO 11124-1) 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

30、grit (ISO 11124-2) EN ISO 11126-1, Preparation of steel substrates before application of paints and related products - Specifications for non-metallic blast-cleaning abrasives - Part 1: General introduction and classification (ISO 11126-1) 3 Terms and definitions No terms and definitions are listed

31、in this document. 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 4 Principles The surface preparation of a work piece has

32、a substantial effect on the quality of the sprayed coating especially 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 g

33、rit blasting. EN 15520 gives information regarding suitable component 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. BS EN 1

34、3507:2018EN 13507:2018 (E) 5 The roughness of the surface shall enable a good interlocking of the sprayed coating to the substrate. Grit blasting is a suitable method for obtaining appropriate roughened metallic surfaces, thereby also enlarging the effective area. The surface to be sprayed shall be

35、kept dry during the preparation and spraying process. For outdoor 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). 5 Methods of surface preparation 5.1 Gener

36、al Depending upon the function of the sprayed coating and the initial condition of the surface, different preparation procedures are used. In any case scale, rust, dust and other contaminants shall be removed by mechanical cleaning. 5.2 Degreasing Oil and grease contaminants shall be removed thoroug

37、hly prior to processing the surface. In particular attention shall 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 cleani

38、ng, brushing or steam jet blower. Aqueous wash solutions or organic 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

39、fluorinated hydrocarbons should be avoided due to their detrimental effect on health and the environment. Subsequent rinsing and drying is necessary. For health, safety and environment aspects see 5.7. 5.3 Grit blasting 5.3.1 Cleanliness For thermal spraying the surface shall be sufficiently cleaned

40、 and roughened by applying a suitable grit. The grit blasting process 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, th

41、e preparation grade Sa 3 is necessary but often not sufficient for 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 param

42、eters, e.g. blasting time, distance, angle, particle velocity and 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

43、and, if necessary, have to be optimized by grit blasting of test pieces of similar material. For health, safety and environment aspects see 5.7. 1Time permissible for a break depends upon material to be coated and the influences exerted on the prepared surface, e.g. dust, vapour and moisture (temper

44、ature below dew point, rain, etc.). BS EN 13507:2018EN 13507:2018 (E) 6 5.3.2 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 pat

45、terns shall be agreed between all contracting parties and these will serve as reference for 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 manufac

46、turing of test pieces are outlined. When assessing the roughness, care shall be taken to 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 surfac

47、e preparation and thus on the bond strength of the sprayed coating. EN ISO 12944-4 gives information regarding suitable grit blasting equipment. 5.3.3 Abrasives 5.3.3.1 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

48、 11124-2. It shall be clean and dry. Circulating blasting media shall not have been used 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 ge

49、nerate a suitable roughness, therefore, visual checking of the grits particle size and shape is recommended. Fine dust and rounded particles shall be removed on a controlled basis, e.g. by routine replacement of used grit or by sieving processes. 5.3.3.2 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 the limited lifetime of alumina and silicon carbide (SiC) grit the degree of deteri