EN 287-6-2010 en Qualification test of welders - Fusion welding - Part 6 Cast iron《焊接工人的资格试验 氧炔焊 第6部分 铸铁》.pdf

1、BS EN 287-6:2010ICS 25.160.01NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDQualification test ofwelders FusionweldingPart 6: Cast ironThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 January2010 BSI 2010I

2、SBN 978 0 580 58895 2Amendments/corrigenda issued since publicationDate CommentsBS EN 287-6:2010National forewordThis British Standard is the UK implementation of EN 287-6:2010.The UK participation in its preparation was entrusted to TechnicalCommittee ISE/NFE/9, Foundry technology.A list of organiz

3、ations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS

4、 EN 287-6:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 287-6 January 2010 ICS 25.160.01 English Version Qualification test of welders - Fusion welding - Part 6: Cast iron Epreuve de qualification des soudeurs - Soudage par fusion - Partie 6 : Fontes Prfung von Schweiern - Schmelzschweien

5、 - Teil 6: Gusseisen This European Standard was approved by CEN on 28 November 2009. 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 a

6、nd 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 by translation under the respons

7、ibility 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, France, Germany, Greece, Hung

8、ary, 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 KOMITEE FR NORMUNG Management Centr

9、e: 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 287-6:2010: EBS EN 287-6:2010EN 287-6:2010 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Terms and definiti

10、ons .64 Symbols and abbreviations 64.1 General 64.2 Reference numbers of welding processes .64.3 Abbreviations .65 Essential variables.85.1 General 85.2 Welding processes 85.3 Type of weld and joint preparation 85.4 Material groups 85.5 Weld metals 85.6 Welding positions 96 Range of qualification .9

11、6.1 General 96.2 Welding process 96.3 Welding position 96.4 Cast iron material groups .96.5 Test piece 106.6 Mode of operation . 107 Procedure of the qualification test and examination 107.1 Supervision . 107.2 Shapes and dimensions of test pieces 107.3 Welding conditions . 117.4 Range of testing 11

12、7.5 Test pieces and test specimen 118 Acceptance requirements for test pieces 149 Re-test 1410 Period of validity . 1510.1 Initial qualification 1510.2 Confirmation of the validity . 1510.3 Prolongation of qualification . 1511 Certificate 1512 Designation . 16Annex A (informative) Material groups of

13、 cast iron (according to CEN ISO/TR 15608:2005) 17Annex B (informative) Welders qualification test certificate 18Annex C (informative) Job knowledge . 19C.1 General . 19C.2 Requirements 19Bibliography . 23BS EN 287-6:2010EN 287-6:2010 (E) 3 Foreword This document (EN 287-6:2010) has been prepared by

14、 Technical Committee CEN/TC 190 “Foundry Technology”, 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 July 2010, and conflicting national standards shall b

15、e withdrawn at the latest by July 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. Within its programme of work, Technical Commit

16、tee CEN/TC 190 requested CEN/TC 190/WG 13 “Welding of cast iron“ to prepare the following standard: EN 287-6, Qualification test of welders Fusion welding Part 6: Cast iron. EN 287 consists of the following parts, under the general title Qualification test of welders Fusion welding: Part 1: Steels P

17、art 6: Cast iron 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,

18、 Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 287-6:2010EN 287-6:2010 (E) 4 Introduction The ability of a welder to follow verbal or written instructions and

19、 verification of a persons skills are important factors in ensuring the quality of the welded product. The testing of a welders skill in accordance with this standard depends on welding techniques and conditions used in which uniform rules are complied with, and standard test pieces are used. The pr

20、inciple of this European Standard is that a qualification test qualifies the welder not only for the conditions used in the test, but also for all joints which are considered easier to weld on the presumption that the welder has received a specific training and/or has industrial practice within the

21、range of qualification. The qualification test can be used to qualify a welding procedure and a welder provided that all the relevant requirements, e.g. test piece dimensions, are satisfied. BS EN 287-6:2010EN 287-6:2010 (E) 5 1 Scope This European Standard specifies main requirements, limits, inspe

22、ction conditions and acceptance requirements as well as related inspection documents of welders for welded cast iron test pieces and workpieces. It provides a set of technical rules for a systematic qualification test of a welders skills, and enables such qualifications to be uniformly accepted inde

23、pendently of the type of product, location and examiner/examining body. This European Standard specifies the testing of a welders skill unless a higher level skill test is applicable. The acceptance of a welders skill according to this European Standard implies a practical experience and knowledge r

24、egarding the welding process, materials and safety requirements (see Annex C). This European Standard has to be used when requirements on part of a customer, testing or monitoring body or other organisation are postulated. This European Standard defines the qualification test of welders for the fusi

25、on welding of cast iron. The welding processes referred to in this standard include those fusion welding processes which are designated as manual or partly mechanized welding. It does not cover fully mechanized and automated welding processes (see EN 1418). Cast iron materials which are covered by t

26、his European Standard are mentioned in 5.4. The inspection document and certification is made out in the name of the testing bodys liability. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited

27、 applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 287-1:2004, Qualification test of welders Fusion welding Part 1: Steels EN 571-1, Non destructive testing Penetrant testing Part 1: General principles EN 970, Non-destructive examin

28、ation of fusion welds Visual examination EN 1011-8, Welding Recommendations for welding of metallic materials Part 8: Welding of cast irons EN 1290, Non-destructive testing of welds Magnetic particle testing of welds EN 1320, Destructive tests on welds in metallic materials Fracture test EN 1321, De

29、structive tests on welds in metallic materials Macroscopic and microscopic examination of welds EN ISO 1071, Welding consumables Covered electrodes, wires, rods and tubular cored electrodes for fusion welding of cast iron Classification (ISO 1071:2003) EN ISO 4063, Welding and allied processes Nomen

30、clature of processes and reference numbers (ISO 4063:2009) EN ISO 6520-1, Welding and allied processes Classification of geometric imperfections in metallic materials Part 1: Fusion welding (ISO 6520-1:2007) EN ISO 6947, Welds; working positions Definitions of angles of slope and rotation (ISO 6947:

31、1993) BS EN 287-6:2010EN 287-6:2010 (E) 6 CEN ISO/TR 15608, Welding Guidelines for a metallic materials grouping system (ISO/TR 15608:2005) EN ISO 15609-1, Specification and qualification of welding procedures for metallic materials Welding procedure specification Part 1: Arc welding (ISO 15609-1:20

32、04) EN ISO 15609-2, Specification and qualification of welding procedures for metallic materials Welding procedure specification Part 2: Gas welding (ISO 15609-2:2001) ISO 857-1, Welding and allied processes Vocabulary Part 1: Metal welding processes 3 Terms and definitions For the purposes of this

33、document, the terms and definitions given in EN 287-1:2004 apply. 4 Symbols and abbreviations 4.1 General Where the full wording is not used, the following abbreviations and reference numbers shall be used when completing the welders qualification test certificate (see Annex B). 4.2 Reference number

34、s of welding processes This European Standard covers the following manual or partly mechanized welding processes (reference numbers of welding processes for symbolic representation are listed in EN ISO 4063): 111 manual metal arc welding; 114 self-shielded tubular-cored arc welding; 131 MIG welding

35、with solid wire electrode; 135 MAG welding with solid wire electrode; 136 MAG welding with flux cored electrode; 141 TIG welding with solid filler material; 15 plasma arc welding; 311 oxyacetylene welding. 4.3 Abbreviations 4.3.1 Test pieces a designed fillet weld thickness; BW butt weld; FW fillet

36、weld; CPC simulated crack (cast iron plate crack); CPH tapped blind hole (cast iron plate hole); BS EN 287-6:2010EN 287-6:2010 (E) 7 t material thickness of test piece (plate or wall thickness); z leg length of fillet weld. 4.3.2 Consumables FeC-1 similar welding consumable; FeC-2 similar welding co

37、nsumable; FeC-GF similar welding consumable; FeC-GP similar welding consumable; Fe1 iron based consumable; Fe2 iron based consumable; Ni nickel based consumable; NiFe-1 nickel based consumable; NiFe-2 nickel based consumable; NiCu nickel based consumable; Z any concerted consumable. NOTE (see EN ISO

38、 1071) 4.3.3 Other weld details hw homogeneous weld metal; sw semi-homogeneous weld metal; nw non-homogeneous weld metal; bs welding from both sides; ss single-side welding; gg gouging or grinding of root run; ng without gouging or grinding; mb welding with backing; nb welding without backing. BS EN

39、 287-6:2010EN 287-6:2010 (E) 8 5 Essential variables 5.1 General The qualification of welders is based on essential variables. For each essential variable, a range of qualifica-tion is defined. All test pieces shall be welded using the essential variables independently. The test piece for the qualif

40、ication test is unattached from the type of component. 5.2 Welding processes The welding processes are defined in ISO 857-1 (see also 4.2). 5.3 Type of weld and joint preparation For those butt and fillet weld test pieces made of cast iron plates with tapped blind holes and for those test pieces mad

41、e of cast iron with simulated cracks the qualification test shall be made according to 7.2. 5.4 Material groups 5.4.1 General In order to reduce the number of qualification tests, materials with similar welding characteristics are grouped according to CEN ISO/TR 15608 (see also 5.4.2). 5.4.2 Cast ir

42、on groups According to the operational requirements the following cast iron materials are relevant. Cast iron groups according to CEN ISO/TR 15608: 71 grey (lamellar graphite) cast iron; 72 spheroidal graphite cast iron; 73 malleable cast iron; 74 austempered ductile cast iron; 75 austenitic cast ir

43、on; 76 other cast iron materials. 5.5 Weld metals It is differentiated between homogeneous weld metal (hw), semi-homogeneous weld metal (sw) and non-homogeneous weld metal (nw). For the qualification test, suitable consumables shall be selected in view of the parent metal and the welding process. Th

44、e welding process shall conform to the relevant pWPS or WPS (see EN ISO 15609-1 and EN ISO 15609-2). If a qualification test is made by using one kind of welding consumables, shielding gases or welding fluxes the test will also be accepted for comparable types of welding consumables, shielding gases

45、 or welding fluxes for the same cast iron material group. BS EN 287-6:2010EN 287-6:2010 (E) 9 5.6 Welding positions The welding position shall be chosen in accordance with Figure C.1. The welding positions and symbols refer to EN ISO 6947. The test pieces shall be welded in accordance with the nomin

46、al angles of the welding positions according to EN ISO 6947. 6 Range of qualification 6.1 General As a basic principle the qualification test of a welder not only covers the referring test piece and the skill for these special variables, it also covers joints and appropriate variables which are easi

47、er to create. 6.2 Welding process Each qualification test refers to one welding process. A change of the welding process requires a new qualification test. 6.3 Welding position The welding position PB includes the position PA. The welding position PC includes the positions PA and PB. The welding pos

48、ition PF includes the positions PB and PA. NOTE The positions of weld are illustrated in Figure C.1. 6.4 Cast iron material groups See CEN ISO/TR 15608 (see also Table A.1). The range of qualification is given in Table 1. Table 1 Range of qualification for test pieces Material groups of test pieces

49、Range of qualification for material group 71 72.1 72.2 72.3 72.4 73.1 73.2 73.3 74 71 X X X X X X X X 72.1 X X X X X 72.2 X X X X X 72.3 X X X X X X 72.4 X X X X X X X 73.1 X 73.2 X X X X X X 73.3 X X X X X X X 74 X BS EN 287-6:2010EN 287-6:2010 (E) 10 6.5 Test piece The qualification test at a test piece CPH authorizes the welder for w