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1、BRITISH STANDARD BS EN 13411-4:2002 Terminations for steel wire ropes Safety Part 4: Metal and resin socketing The European Standard EN 13411-4:2002 has the status of a British Standard ICS 53.020.30; 77.140.65 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 13411-4:2002
2、 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 26 March 2002 BSI 26 March 2002 ISBN 0 580 39317 8 National foreword This British Standard is
3、the official English language version of EN 13411-4:2002. It supersedes BS 7035:1989 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee MHE/2, Wire ropes, which has the responsibility to: A list of organizations represented on this committee can be obtai
4、ned 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 “Find” fa
5、cility 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 obli
6、gations. 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 This
7、document comprises a front cover, an inside front cover, the EN title page, pages 2 to 18, 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 EUROPEAN STANDARD
8、 NORME EUROPENNE EUROPISCHE NORM EN 13411-4 February 2002 ICS 53.020.30; 77.140.99 English version Terminations for steel wire ropes - Safety - Part 4: Metal and resin socketing Terminaisons des cbles en fils dacier - Scurit - Partie 4: Manchonnage laide de mtal ou rsine Endverbindungen fr Drahtseil
9、e aus Stahldraht - Sicherheit - Teil 4: Vergieen mit Metall oder Kunstharz This European Standard was approved by CEN on 11 November 2001. 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 nation
10、al 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, German). A version in any ot
11、her 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, Finland, France, Germany, Gr
12、eece, Iceland, Ireland, Italy, Luxembourg, Malta, 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 2002 CENAll righ
13、ts of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13411-4:2002 E EN 13411-4:2002 (E) 2 Contents page Foreword3 Introduction.4 1Scope 5 2Normative references 5 3Terms and definitions5 4List of hazards7 5Safety requirements and/or measures 7 6Veri
14、fication of the safety requirements and/or measures .10 7Marking .11 Annex A (normative) Molten metal socketing media12 Annex B (normative) Resin socketing media13 Annex C (normative) Type testing for assessment of molten metal or resin socketed termination.14 Annex D (informative) Procedure for pre
15、-treatment of bright rope for improved adhesion when socketing with lead-based alloys.15 Annex E (informative) Operating temperature limits16 Annex ZA (informative) Relationship of this document with EC Directives.17 Bibliography18 EN 13411-4:2002 (E) 3 Foreword This document EN 13411-4:2002 has bee
16、n prepared by Technical Committee CEN /TC 168 “Chains, ropes, webbing, slings and accessories - Safety“, the secretariat of which is held by BSI. 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 Au
17、gust 2002, and conflicting national standards shall be withdrawn at the latest by August 2002. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EC Directive(s). For relationship wit
18、h EC Directive(s), see informative annex ZA, which is an integral part of this document. The other Parts of this European Standard are: Part 1: General purpose steel thimbles Part 2: Spliced eyes Part 3: Ferrule secured eyes Part 5: U-bolt wire rope gripped terminations Part 6: Asymmetric wedge sock
19、et clevis Part 7: Symmetric wedge socket clevis This is the first edition of this European Standard. The annexes A, B, and C are normative. The annexes D, E and ZA are informative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are
20、bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. EN 13411-4:2002 (E) 4 Introduction This European Stand
21、ard has been prepared to provide a means of conforming with the essential safety requirements of the Machinery Directive and associated EFTA regulations. The methods of socketing described in this standard are based on historical experience and following them is considered to result in a rope termin
22、ation having an efficiency of 100 % based on the minimum breaking force of the rope. It is assumed that the included angle of the socket basket is not less than 9,5? nor greater than 18?. It is also assumed that the socket is - suitable for heating without changing the characteristics of the socket
23、material when the socketing medium is molten metal; - strong enough for the rope; and - suitable for the purpose for which it is intended. As the intended use of the rope should be known, resistance to fatigue loading is not covered. While producing this standard it was assumed that negotiation occu
24、rs between the manufacturer and the user to decide which socketing medium is required. EN 13411-4:2002 (E) 5 1 Scope This European Standard specifies the minimum requirements for the molten metal and resin socketing of steel wire ropes conforming to EN 12385 parts 4 to 10. The standard covers only t
25、hose requirements that ensure that the socketing is strong enough to withstand a force of at least 100 % of the minimum breaking force of the rope. NOTERope terminations made by socketing in accordance with this European Standard can be used for determining the breaking force of wire ropes in accord
26、ance with annex A of EN 12385-1:2002. Socketing by the methods and materials described in this standard are for use within the temperature limits given in informative annex E. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications
27、. These normative references are cited at the appropriate places in the text, and 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
28、 undated references the latest edition of the publication referred to applies (including amendments). EN 59, Glass reinforced plastics - Measurement of hardness by means of a Barcol impressor. EN 12385-1:2002, Steel wire ropes Safety Part 1: General requirements. prEN 12385-2, Steel wire ropes Safet
29、y Part 2: Definitions, designation and classification. ISO 75-2, Plastics - Determination of temperature of deflection under load - Part 2: Plastics and ebonite. 3 Terms and definitions For the purpose of this European Standard, the terms and definitions given in prEN 12385-2 together with the follo
30、wing apply. Further nomenclature is given in Figure 1. 3.1 socket type of wire rope termination incorporating a socket basket 3.2 socket basket area of a socket in which a brushed rope end is secured using a socketing medium 3.3 serving wrapping, usually of wire or strand, for the purpose of securin
31、g a rope end to prevent its unlaying 3.4 primary serving serving applied prior to socketing and remaining in place at least until the socketing operation has been completed 3.5 secondary serving serving applied and subsequently removed at various stages of the socketing operation 3.6 gelling change
32、in condition of resin from liquid to a semi-solid, jelly-like composition EN 13411-4:2002 (E) 6 3.7 hooking procedure whereby the end of a wire forming part of a brush is bent backwards to form a hook 3.8 socketer person carrying out the socketing 3.9 competent person designated person, suitably tra
33、ined, qualified by knowledge and experience and with the necessary instructions to ensure that the required operations are correctly carried out Key 1 Length of tapered basket plus any parallel portion(s) including any radius at rope entry 2 Small end of tapered basket 3 Large end of tapered basket
34、4 Included angle of tapered basket 5 Bore (internal diameter at rope entry) 6 Pin hole centre line 7 Length of tapered basket 8 Length of parallel portion including any radius at rope entry 9 Protruding wires 10 Length of brush 11 Root of brush NOTE Some sockets can have baskets with an extended par
35、allel portion at the large end of the tapered basket. Figure 1 Nomenclature of typical parts of socket and brush 3.10 resin socketing system system comprising instructions and materials for the socketing of wire ropes using resin as the media 3.11 socketing system designer person or organization tha
36、t designs the socketing system and assumes responsibility for type testing EN 13411-4:2002 (E) 7 4 List of hazards Accidental release of a load due to failure of the socketed portion of a socketed rope termination puts at risk, either directly or indirectly, the safety or health of those persons wit
37、hin the danger zone. In order to provide the necessary strength of the socketed portion of a socketed termination this European Standard gives requirements for the method of socketing to ensure specified levels of performance are met. 5 Safety requirements and/or measures 5.1 General Socketing shall
38、 be carried out by a person trained in socketing. 5.2 Preparation of rope and socket 5.2.1 General The position of the wires and strands of the non-socketed portion of rope shall remain undisturbed during the socketing operation. Oxyacetylene or similar cutting shall not be applied owing to risk of
39、heat damage to the wires. 5.2.2 Marking The rope shall be marked with the required length taking into account the length of the socket basket, the length of the brush to be formed, any additional brush length for the hooking of wires and, if used, the depth of any centralizing clamp. 5.2.3 Serving T
40、he rope shall be served with a permanent serving as shown in Figure 1. Unless specified otherwise by the socket manufacturer, the serving shall allow for penetration of the socketing medium between the served rope and the bore of the socket. The serving material shall be tinned or galvanized soft st
41、eel wire or strand. 5.2.4 Cleanliness of socket The inside face of the socket basket shall not be contaminated. NOTEThis does not preclude the use of a releasing agent when socketing with resin. 5.2.5 Opening the brush The rope (including any steel core where appropriate) shall be unlaid into its co
42、nstituent wires to form an open brush (see Figure 1). NOTEDuring this operation, care should be taken to avoid excessive bending of the wires, particularly at the root of the brush. Any fibre core shall be removed from the whole length of the brush. When socketing ropes with fibre cores with molten
43、metal, the exposed end of the fibre core shall be protected from the effects of heat. EN 13411-4:2002 (E) 8 5.2.6 Pre-treatment of the brush The brush shall be degreased to remove all traces of lubricant. Degreasing shall be by either liquid or vapour methods. Care shall be taken to ensure that degr
44、easing is confined to the brush. The wire brush shall be completely dry before the socketing medium is poured into the socket. NOTEWhen socketing with lead-based alloys the wires of a bright rope may be pre-treated for improved adhesion. An optional procedure is given in annex D. 5.2.7 Hooking Where
45、 type testing shows that hooking is necessary, the dimensions of the hooked portion shall not be such that it impedes the flow of the molten metal or resin during socketing, nor reduces the embedded length of the brush in the socketing medium. 5.2.8 Positioning and alignment of brush, rope and socke
46、t The socket shall be drawn over the brush until the root of the brush protrudes into the tapered portion at the small end by no more than 0,5 d. The wires shall be evenly distributed within the socket basket. The distance between the end of the brush and the large end of the socket basket shall be
47、no greater than 5 % of the length of the socket basket. If the ends of the wires at the top of the brush do not protrude beyond the large end of the socket basket, the actual position of the wire ends in relation to the large end of the basket shall be measured and documented. The rope axis shall be
48、 coincident with the socket axis for a sufficient length, typically three lay lengths, but may be reduced by the use of suitable clamps. NOTEThe concentricity of the rope in relation to the socket bore is part of the negotiation. 5.2.9 Sealing After positioning and alignment of the brush, the small
49、end of the socket shall be sealed. After positioning and aligning the brush, the area where the rope enters the socket shall be sealed. NOTECare should be taken to ensure that penetration of the socketing medium where the rope enters the socket is not impeded. 5.3 Socketing 5.3.1 General The medium used for socketing shall be either: -molten metal conforming to annex A; or - resin conforming to annex B. Previously used socketing medium shall not be re-used. EN 13411-4:2002 (E) 9 5.3.2 Molten metal socketing 5.3.2.1 Pre-heating the socket T
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