《BS-EN-1677-6-2001.pdf》由会员分享,可在线阅读,更多相关《BS-EN-1677-6-2001.pdf(20页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS EN 1677-6:2001 Components for slings Safety Part 6: Links Grade 4 The European Standard EN 1677-6:2001 has the status of a British Standard ICS 53.020.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17
2、08:41:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 1677-6:2001 This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 June 2001 BSI 06-2001 ISBN 0 580 37436 X
3、 National foreword This British Standard is the official English language version of EN 1677-6:2001. The UK participation in its preparation was entrusted to Technical Committee MHE/1, Chains and fittings, which has the responsibility to: A list of organizations represented on this committee can be
4、obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Fin
5、d” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal
6、 obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages
7、This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 16, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Cop
8、y: sheffieldun sheffieldun, na, Fri Nov 17 08:41:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1677-6 April 2001 ICS 53.020.30 English version Components for slings - Safety - Part 6: Links - Grade 4 Accessoires pour lingues - Scurit - Partie 6: M
9、ailles - Classe 4 Einzelteile fr Anschlagmittel - Sicherheit - Teil 6: Einzelglieder - Gteklasse 4 This European Standard was approved by CEN on 18 February 2001. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standar
10、d 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 Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, Germ
11、an). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finl
12、and, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels
13、 2001 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1677-6:2001 E Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 1677-6:2001 Contents Page Foreword3 Introductio
14、n4 1Scope4 2Normative references4 3Terms and definitions5 4Hazards6 5Safety requirements7 6Verification of safety requirements10 7Marking14 8Manufacturers certificate14 9Instructions for use14 Annex ZA (informative) Relationship of this document with EC Directives15 Bibliography16 Licensed Copy: she
15、ffieldun sheffieldun, na, Fri Nov 17 08:41:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 1677-6:2001 Foreword This European Standard has been prepared by Technical Committee CEN/TC 168 “Chains, ropes, webbing, slings and accessories - Safety”, the Secretariat of which is held by BSI. This
16、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 October 2001, and conflicting national standards shall be withdrawn at the latest by October 2001. This European Standard has been prepared under a manda
17、te given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EC Directive(s). For relationship with EC Directive(s), see informative Annex ZA, which is an integral part of this standard. The other Parts of EN 1677 for components for sling
18、s are: Part 1: Forged steel components - Grade 8 Part 2: Forged steel lifting hooks with latch - Grade 8 Part 3: Forged steel self-locking hooks - Grade 8 Part 4: Links - Grade 8 Part 5: Forged steel lifting hooks with latch - Grade 4 According to the CEN/CENELEC Internal Regulations, the national s
19、tandards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. License
20、d Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 1677-6:2001 Introduction This European Standard has been prepared to be a harmonized standard providing one means of complying with the essential safety requirements of the Machinery Directi
21、ve and associated EFTA regulations. The links covered by this Part of EN 1677 are normally supplied to be part of a sling, but they may also be used for other applications. In such instances it is important that the link design is checked to ensure its fitness for the intended use. The extent to whi
22、ch hazards are covered is indicated in the scope . In addition, lifting equipment shall conform as appropriate to EN 292 for hazards that are not covered by this standard. 1 Scope This part of EN 1677 specifies requirements for welded steel master links, intermediate master links, master link assemb
23、lies and lower terminal links of grade 4 up to 67 t WLL, mainly for use in: chain slings according to EN 818-5 steel wire rope slings according to prEN 13414-1:1998 textile slings according to EN 1492-1, EN 1492-2 . intended for lifting objects, materials or goods. The hazards covered by this Part o
24、f EN 1677 are identified in clause 4. 2 Normative references 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 and the publications are listed hereafter. For dated referen
25、ces, 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 (including amendments). EN 292-1Safety of machinery - Basi
26、c concepts - General principles for design Part 1: Basic terminology, methodology EN 292-2:1991Safety of machinery - Basic concepts - General principles for design /A1:1995Part 2: Technical principles and specifications (Amendment 1: 1995) EN 818-5:1999Short link chain for lifting purposes Safety -
27、Part 5: Chain slings - Grade 4 EN 818-6Short link chain for lifting purposes - Safety Part 6: Chain slings - Specification for information for use and maintenance to be provided by the manufacturer EN 1050:1996Safety of machinery - Principles for risk assessment EN 1492-1Textile slings Safety - Part
28、 1: Flat woven webbing slings made of man-made fibres. EN 1492-2Textile slings Safety - Part 2: Round slings made of man-made fibres EN 10002-2:1991Metallic materials - Tensile test - Part 2: Verification of the force measuring system of the tensile testing machine EN 10025:1990Hot rolled products o
29、f non-alloy structural steels Technical delivery conditions +A1:1993 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 1677-6:2001 prEN 13414-1:1998Steel wire ropes for slings Safety - Part 1: Wire rope slings EN 45012General require
30、ments for bodies operating assessment and certification/registration of quality systems (ISO/IEC Guide 62:1996) EN ISO 9002:1994Quality systems - Model for quality assurance in production, installation and servicing ISO 643:1983Steels - Micrographic determination of the ferritic or austenitic grain
31、size 3 Terms and definitions For the purposes of this Part of EN 1677, the following terms and definitions apply. 3.1 working load limit (WLL) maximum mass that a link is authorized to sustain in general lifting service NOTE This term has the same meaning as the term maximum working load used in the
32、 amendment to EN 292-2:1991/A1: 1995. 3.2 manufacturing proof force (MPF) force applied to the link during the manufacturing proof test 3.3 breaking force (BF) maximum force reached during the static tensile test of the link at which the link fails to retain the load 3.4 sling assembly consisting of
33、 chain, wire rope or textile joined to upper and lower terminals suitable for attaching loads to the hook of a crane or other lifting machine 3.5 master link link forming the upper terminal of a sling by means of which the sling is attached to the hook of a crane or other lifting machine 3.6 interme
34、diate master link link used to connect one or two legs of a sling to a master link 3.7 master link assembly assembly consisting of a master link together with two intermediate master links 3.8 lower terminal link, hook or other device fitted at the end of a leg of a sling, remote from the master lin
35、k or upper terminal 3.9 traceability code series of letters and/or numbers marked on a link that enable its manufacturing history, including the identity of the cast of steel used, to be traced Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
36、 Page 6 EN 1677-6:2001 3.10 lot specified number of links from which samples are selected for testing purposes, and that have been manufactured from the same cast of steel and subjected to the same heat treatment process 3.11 total ultimate elongation total extension at the point of fracture of the
37、link expressed as a percentage of the internal length of the test sample 3.12 competent person designated person, suitably trained, qualified by knowledge and practical experience, and with the necessary instruction to enable the required test and examination to be carried out NOTE 4.18 of EN ISO 90
38、02:1994 gives guidance on training 4 Hazards Accidental release of a load, or release of a load due to failure of a link puts at risk, either directly or indirectly, the safety or health of those persons within the danger zone. In order to provide the necessary strength and durability of links, this
39、 Part of EN 1677 gives requirements for the design, manufacture and testing to ensure that specified levels of performance are met. Fatigue failure has not been identified as a hazard when grade 4 links having the specified levels of performance given in this standard are used for general lifting pu
40、rposes. Since failure can be caused by the incorrect choice of grade and specification of link, this standard also gives requirements for marking and the manufacturers certificate. Errors in fitting can also lead to failure and this Part of EN 1677 contains dimensional requirements to allow correct
41、fit. Risk of injury due to sharp edges, sharp angles or rough surfaces when handling is also covered by this standard. Those aspects of safe use associated with good practice are given in EN 818-6. Table 1 contains those hazards, that require action to reduce risk identified by risk assessment as be
42、ing specific and significant for links of grade 4. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 17 08:41:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 7 EN 1677-6:2001 Table 1 - Hazards and associated requirements Hazards identified in annex A of EN 1050: 1996 Relevant clause of annex A
43、of EN 292-2: 1991/A1: 1995 Relevant clause/subclause of this Part of EN1677 1eMechanical hazard1.3.25 due to inadequacy4.1.2.35 of strength4.1.2.55 4.2.45 1.7.37 1.7.49 1.3Cutting hazard1.3.45.4 1.8Friction or abrasion hazard 1.3.45.4 15Errors of fitting hazard1.5.45.2 9 5 Safety requirements 5.1 De
44、sign Links shall be parallel-sided links produced by welding. 5.2 Dimensions The internal dimensions of links covered by this Part of EN 1677 shall be such as to ensure effective articulation so that the load is transmitted axially. The cross-section of links shall be so as to conform to 5.5. NOTE T
45、his requirement permits a varying shape and area of cross-section. The internal length of master links shall be 58 WLL minimum (in millimetres) and the internal width 315 ,WLL minimum (in millimetres) where the WLL is given in tonnes. 5.3 Materials and heat treatment 5.3.1 Quality of material 5.3.1.
46、1 General Within the limitations given in 5.3.1.2 to 5.3.1.4, the manufacturer shall select the type of steel to be used so that the finished links, when suitably heat-treated conforms to the mechanical properties specified in this Part of EN 1677. 5.3.1.2 Type of steel The steel shall be produced b
47、y an electric process or by an oxygen blown process. 5.3.1.3 Deoxidation The steel shall be fully killed as defined in EN 10025:1990+A1:1993 stabilized against strain age embrittlement, and have an austenitic grain size of 5 or finer when tested in accordance with ISO 643 : 1983 Licensed Copy: sheff
48、ieldun sheffieldun, na, Fri Nov 17 08:41:09 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 8 EN 1677-6:2001 5.3.1.4 Chemical composition To ensure that links are stabilized against strain age embrittlement during service, the steel shall contain at least 0,025 % aluminium. The steel shall contain n
49、o more sulfur and phosphorus than the limits given in Table 2. Table 2 - Sulfur and phosphorus content Element Maximum mass content as determined by Cast analysisCheck analysis % Sulfur0,0250,030 Phosphorous0,0250,030 The silicon content of the steel shall be as specified in Table 3. NOTE The purpose of this requirement is to limit the detrimental effect on the hook as part of a chain sling when used for lifting in galvanizing baths. Table 3 - Silicon content Element Mass content as determined by Cast analysisCheck analysis % Silicon0,12 to 0,300,15
链接地址:https://www.31doc.com/p-3741051.html