1、March 2016DEUTSCHE NORM English price group 13No 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 83.180!%Qr“2469679www
2、.din.deDIN 2304-1Adhesive bonding technology Quality requirements for adhesive bonding processes Part 1: Adhesive bonding process chain,English translation of DIN 2304-1:2016-03Klebtechnik Qualittsanforderungen an Klebprozesse Teil 1: Prozesskette Kleben,Englische bersetzung von DIN 2304-1:2016-03Te
3、chnologie de collage Exigences de qualit relatives aux processus de collage Partie 1: Chane de processus collage,Traduction anglaise de DIN 2304-1:2016-03www.beuth.deDocument comprises 29 pagesDDIN-Normenausschuss Schweien und verwandte Verfahren (NAS)DIN-Sprachendienst07.16 DIN 2304-1:2016-03 2 A c
4、omma is used as the decimal marker. Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 5 4 Selecting the bonding requirements 6 5 Requirements to be met by the process chain for safety classes S1, S2 and S3 8 5.1 Infrastructure . 8 5.2 Staff . 8 5.3 Checking the co
5、ntractual provisions 9 5.4 Development and design . 10 5.5 Subcontracting 13 5.6 Process design . 15 5.7 Storage and logistics for adherends, adhesives and auxiliary materials. 18 5.8 Manufacturing . 19 5.9 Maintenance . 20 5.10 Monitoring of measuring and test equipment and of production aids and t
6、ools . 22 5.11 Occupational health and safety and environmental protection . 23 5.12 Quality management . 23 Annex A (informative) Manufacturing documents . 26 Bibliography . 29 DIN 2304-1:2016-03 3 Foreword This standard has been prepared by Working Group NA 092-00-28-01 AK Prozesskette Klebtechnik
7、 of Working Committee NA 092-00-28 AA Klebtechnik (DVS AG V 8) of DIN-Normenausschuss Schweien und verwandte Verfahren (NAS) (DIN Standards Committee welding and related processes). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights w
8、ithout these having been identified here. DIN shall not be held responsible for identifying any or all such patent rights. DIN 2304-1:2016-03 4 1 Scope This standard specifies requirements for the high-quality design and workmanship of structural, i.e. loadbearing, adhesive bonds, covering all steps
9、 of the adhesive bonding process chain, from design to manufacturing and maintenance. It also specifies safety classes into which the bonds covered in this standard are to be classified. A structural bond within the meaning of this standard is a material compound produced using adhesive(s) and desig
10、ned mainly to transmit mechanical loads, its loadbearing function ensuring its reliability and fitness for use throughout the life cycle of the product. As part of a technical unit the bond in this assembly contributes to the strength and stability of the unit as a whole, or of part of the unit, or
11、of a component. It is intended, in accordance with its requirement profile, to resist all stresses involved irrespective of whether these are static, dynamic or a combination of both, and whether or not environmental effects are to be considered. The main function of transmitting mechanical loads is
12、 to be ensured for any adhesive used and regardless of: the strength and deformation characteristics of the adhesive used (i.e. it covers all types of adhesive, from low modulus, highly resilient to high modulus, very stiff adhesives); the curing/hardening mechanism of the adhesive used (e.g. chemic
13、ally curing, physically hardening, combined curing mechanisms, or material covered with an adhesive, such as adhesive tape) and the sector or purpose in or for which the bonded assembly is intended to be used. This standard does not deal with bonds the manufacturing of which is otherwise covered in
14、recognized or proven technical rules, existing approvals or other standards. DIN 2304-1 establishes definitions and sets out organizational, contractual and technical principles to be followed when manufacturing adhesive bonds. 2 Normative references The following documents, in whole or in part, are
15、 normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DVS-EWF 3301, European Adhesive Specialist Professional
16、education, examination and training1) DVS-EWF 3305, European Adhesive Bonder1)DVS-EWF 3309, DVS-EWF training course European Adhesive Engineer (EAE)1)DVS 3311, Bonding supervision Tasks und responsibilities1)1) Obtainable from Beuth Verlag GmbH at http:/www.beuth.de. DIN 2304-1:2016-03 5 3 Terms and
17、 definitions For the purposes of this standard, the following terms and definitions apply. 3.1 (adhesive) bonding joining adherends by means of adhesion (surface bonding) and cohesion (internal strength) using a non-metallic substance SOURCE: E DIN 6701-1:2004-11, 3.1, editorially modified 3.2 speci
18、al bonding process process the result of which cannot be fully established non-destructively in any subsequent quality or product tests and for which any manufacturing defects, for example, will be apparent only when the product is being used SOURCE: E DIN 6701-1:2004-11, 3.1.1, editorially modified
19、, note deleted 3.3 adhesive non-metallic substance capable of joining adherends by surface bonding (adhesion) and the bond possessing adequate internal strength (cohesion) SOURCE: E DIN 6701-1:2004-11, 3.2 3.4 adhesive bonding staff persons who use adhesive bonding technology at the design, producti
20、on, manufacture and maintenance stages SOURCE: E DIN 6701-1:2004-11, 3.8, editorially modified 3.5 bonding supervisor KAP person responsible for the adhesive bonding technology used and the operations involved in bonding, who is capable of demonstrating that his or her qualification and knowledge ar
21、e based on practical experience and/or have been acquired by means of professional education or training Note 1 to entry: The term is used to designate persons to whom one or more coordination tasks have been assigned. SOURCE: E DIN 6701-1:2004-11, 3.8.1, editorially modified 3.6 quality requirement
22、s requirements regarding the workmanship of adhesive bonds SOURCE: E DIN 6701-1:2004-11, 3.29 DIN 2304-1:2016-03 6 3.7 surface treatment surface preparation pretreatment physical and/or chemical treatment applied to the surface of a substrate (adherend, fibre) to render it suitable or more suitable
23、for bonding SOURCE: DIN EN 923:2015, 2.5.8 3.8 maintenance combination of all technical, administrative and managerial actions during the lifecycle of an item intended to retain it in, or restore it to, a state in which it can perform the required function SOURCE: DIN EN 13306:2010, 2.1, editorially
24、 modified, note deleted 3.9 contractor person or organization responsible for the bonding process 3.10 bonding system mutually compatible and proven components and techniques the use of which enable a bond to be made that meets the relevant requirements Note 1 to entry: Components include cleaners,
25、activators, primers, adhesives. 3.11 place of use the place where a processing step is performed 4 Selecting the bonding requirements Requirements for the high-quality workmanship of structural, i.e. loadbearing adhesive bonds shall be established by classifying them into safety classes. Within the
26、meaning of this standard, these classes relate solely to the effects of any possible failure of the bond in transmitting forces, that is, the expected consequences of mechanical failure of the bond, i.e. the main function of the bond being the transmission of mechanical loads referred to in Clause 1
27、. The safety classification of bonds in this standard does not allow for any aspects such as their suitability for use with food, their fire resistance, compliance with pollution control regulations or any stipulations regarding occupational safety or environmental protection, since these are covere
28、d in other standards, codes of practice or technical rules. The designer or the person dealing with the component concerned shall classify the bond into one of the following safety classes, taking into consideration the potential effects of bond failure: S1: high-level safety requirements; S2: mediu
29、m-level safety requirements; S3: low-level safety requirements; S4: no safety requirements. DIN 2304-1:2016-03 7 The safety class of the relevant safety requirements to be met by a bond shall be specified prior to its execution at the latest, or specified and documented by the fabricator in consulta
30、tion with the supervisor. The requirements given in Clause 5 only relate to safety classes S1, S2 and S3. A bond can be assigned a higher safety class for economic, ecological and/or functional reasons, for example. In particular applications, safety classes may already be specified in other existin
31、g standards, approvals or elsewhere. In cases of doubt, the highest possible class shall be assumed. A component may include different types of bond which can be assigned to different safety classes, depending on the requirements specified. Where a bond is not to meet at least a low-level safety req
32、uirement, this bond can be assigned to class S4. Table 1 illustrates the classification of bonds as a function of the relevant level of safety requirements. Table 1 Classification of bonds as a function of the level of safety requirements Safety class Level of safety requirement S1 High level Failur
33、e of the bond will directly or indirectly lead to an inevitable hazard to life or limb; will result in a failure of the function, the effect of which will most likely lead to an inevitable hazard to life or limb. S2 Medium level Failure of the bond can lead to a hazard to life or limb; will result i
34、n a failure of the function, the effect of which will probably involve personal injury or result in major environmental damage; will result in a failure of the function, the effect of which will most likely involve major damage to property. S3 Low level Failure of the bond will result in a failure o
35、f the function, the effect of which will probably not involve personal injury or result in major environmental damage; will result in a failure of the function, the effect of which will affect comfort or performance at the most; will result in a failure of the function, the effect of which will prob
36、ably not involve major damage to property. S4 No safety requirement Failure of the bond will result in a failure of the function, the effect of which will not, under foreseeable circumstances, involve personal injury or result in environmental damage; will result in a failure of the function, the ef
37、fect of which will only affect comfort or performance; will result in a failure of the function, the effect of which will not involve major damage to property. DIN 2304-1:2016-03 8 5 Requirements to be met by the process chain for safety classes S1, S2 and S3 5.1 Infrastructure 5.1.1 Manufacturing e
38、nvironment The manufacturing areas shall be designed to suit the bonding system used in terms of equipment, occupational safety and environmental protection. Areas shall be available where adherends, adhesives and auxiliary materials can be stored in a way consistent with the particular requirements
39、. For the storage of hazardous materials, storage areas shall be provided that comply with the relevant regulations. For safety class S1 and class S2 bonds, the following additional requirements apply: for any bonding tests to be carried out at the works, a suitable laboratory area shall be provided
40、; bonding areas shall be identified and marked accordingly. 5.1.2 Transport Supply, in-house transport and dispatch of adherends, adhesives and auxiliary materials, and bonded components shall be carried out in accordance with the relevant requirements, e.g. as set out in technical data sheets. 5.1.
41、3 Infrastructure, maintenance and adaptation Instructions shall be provided covering the servicing, maintenance and adaptation of the infrastructure to suit the current bonding requirements. Where safety class S1 and class S2 bonds are involved, the following requirement shall be complied with: any
42、servicing, maintenance and adaptation of the infrastructure shall be documented. 5.2 Staff 5.2.1 General The contractor shall have sufficient qualified staff for the design, workmanship and supervision of the bonding process as a whole in accordance with the specified requirements. 5.2.2 Bonding sup
43、ervisors At least one person shall be designated as bonding supervisor. DVS 3311 specifies the relevant requirements, necessary qualifications, tasks and responsibilities of a supervisor. The supervisor shall be qualified at least as a European Adhesive Bonder in accordance with DVS-EWF 3305, or hav
44、e a comparable qualification suitable for the task in question. Where a number of persons have been named supervisor, each person shall have the required qualifications. The qualifications required for bonding work shall be specified in consultation with the supervisor. The names of all persons invo
45、lved in bonding work, together with their professional qualifications and any certificates, shall be documented. DIN 2304-1:2016-03 9 For safety class S2 bonds, the following requirements shall additionally be complied with: the supervisor shall be qualified at least as a European Adhesive Specialis
46、t as in DVS-EWF 3301, or have a comparable qualification; the supervisor shall not also be charged with bonding work. In addition, for safety class S1 bonds, the following requirement shall be met: the person supervising the overall bonding process shall be qualified as a European Adhesive Engineer
47、as in DVS-EWF 3309, or have a comparable qualification. 5.2.3 Bonding personnel The persons carrying out bonding work shall be qualified at least as European Adhesive Bonders, in compliance with DVS-EWF 3305, or be otherwise suitably qualified for the task in question. In exceptional cases, the supe
48、rvisor may permit persons not having this qualification to make safety class S3 bonds. Such permission shall cover only individual bonds or operations. The staff members entrusted with the work shall be properly instructed by the supervisor. It shall be the supervisors responsibility to justify, in
49、a transparent way, the reasons on which this permission is based. 5.2.4 Further training Supervisors shall attend further training courses offered by a third party at least every two years. The bonding personnel shall also attend such courses at least every two years. The content and duration of such training shall be specified in consultation with the supervisor. Any further training shall be documented. 5.3 Checking the con
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