1、August 2009DEUTSCHE NORM English price group 8No part of this standard 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!$Y98“1542221www.d
2、in.deDDIN EN 15865Adhesives Determination of torque strength of anaerobic adhesives on threadedfasteners (ISO 10964:1993 modified)English version of DIN EN 15865:2009-08Klebstoffe Bestimmung der Drehfestigkeit von anaeroben Klebstoffen auf geklebten Gewinden(ISO 10964:1993 modifiziert)Englische Fass
3、ung DIN EN 15865:2009-08SupersedesDIN EN ISO 10964:1997-10www.beuth.deDocument comprises 14 pagesDIN EN 15865:2009-08 National foreword This standard has been prepared by Technical Committee CEN/TC 193 “Adhesives” (Secretariat: AENOR, Spain). The responsible German body involved in its preparation w
4、as the Normenausschuss Materialprfung (Materials Testing Standards Committee), Technical Committee NA 062-04-55 AA Prfung von Konstruktions-klebstoffen, -klebverbindungen und Kernverbunden. This document supersedes DIN EN ISO 10964:1997-10. The incorporated changes as compared with this standard are
5、 marked by vertical lines in the left margin. Amendments This standard differs from DIN EN ISO 10964:1997-10 as follows: a) The title of the standard has been changed. b) Normative references have been updated. c) The definition of the input torque has been modified. d) The application of adhesive h
6、as been modified. e) Safety and environmental statements have been included in the foreword. Previous editions DIN 54454: 1984-06 DIN EN ISO 10964: 1997-10 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15865 April 2009 ICS 83.180 Supersedes EN ISO 10964:1997English Version Adhesives Determi
7、nation of torque strength of anaerobic adhesives on threaded fasteners (ISO 10964:1993 modified) Adhsifs Dtermination des couples fonctionnels sur des fixations filetes colles avec des adhsifs anarobies (ISO 10964:1993 modifie) Klebstoffe Bestimmung der Drehfestigkeit von anaeroben Klebstoffen auf g
8、eklebten Gewinden (ISO 10964:1993 modifiziert) This European Standard was approved by CEN on 26 March 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alterati
9、on. Up-to-date lists and 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 transla
10、tionunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Gr
11、eece, Hungary, 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 Managem
12、ent Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15865:2009: EEN 15865:2009 (E) 2 Contents PageForeword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Principle 6
13、 5 Apparatus .6 6 Test specimens 8 7 Application of adhesive 8 8 Assembly 9 9 Test procedure 10 10 Precision 10 11 Test report . 11 Bibliography . 12 DIN EN 15865:2009-08 EN 15865:2009 (E) 3 Foreword This document (EN 10964:2009) has been prepared by Technical Committee CEN/TC 193 “Adhesives”, the s
14、ecretariat of which is held by AENOR. 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 October 2009, and conflicting national standards shall be withdrawn at the latest by October 2009. Attention i
15、s 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. This document supersedes EN ISO 10964:1997. Safety statement Persons using this document should b
16、e familiar with the normal laboratory practice, if applicable. This document cannot address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any regulatory conditions.
17、Environmental statement It is understood that some of the material permitted in this standard may have negative environmental impact. As technological advantages lead to better alternatives for these materials, they will be eliminated from this standard to the extent possible. At the end of the test
18、, the user of the standard shall take care to carry out an appropriate disposal of the wastes, according to local regulation. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Bel
19、gium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 15865:2009
20、-08 EN 15865:2009 (E) 4 1 Scope The test method described in this European Standard is used to make comparative assessments of the securing or locking effect of anaerobic adhesives used in threaded assemblies. This method may be used for other types of adhesives, if considered suitable. 2 Normative
21、references The following referenced documents are indispensable for the application 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 20898-2, Mechanical properties of f
22、asteners - Part 2: Nuts with specified proof load values Coarse thread (ISO 898-2:1992) EN ISO 291, Plastics - Standard atmospheres for conditioning and testing (ISO 291:2008) EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel - Part 1: Bolts, screws and studs with
23、 specified property classes - Coarse thread and fine pitch thread (ISO 898-1:2009) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 on torque, ON maximum torque required to screw the nut onto a bolt precoated with adhesive 3.2 input torque, IN
24、torque applied to introduce or increase the axial load in the assembly It is used to overcome friction in the thread and under the bolt head 3.3 breakaway torque, BAinitial torque required to break the bond measured at the first movement between the nut and bolt, when unscrewing an unseated assembly
25、 (without spacer sleeve, see Figure 1) DIN EN 15865:2009-08 EN 15865:2009 (E) 5 Dimensions in millimetres General tolerances 0,2 mm Roughness value in micrometres Key 1 Sliding friction NOTE 47 HRC to 50 HRC hardness carbon steel. Surface condition: corrosion and grease-free. Figure 1 Spacer sleeve
26、3.4 breakloose torque, BLinitial torque required to decrease or eliminate the axial load in a preloaded assembly 3.5 prevailing torque, Ptorque measured after the initial breakage of the bond at a specified angle of rotation of the nut. For testing against a specification, the angle shall be 180 DIN
27、 EN 15865:2009-08 EN 15865:2009 (E) 6 NOTE 1 A round-robin test program showed there is no significant difference between prevailing torque measured at 180 and prevailing torque determined as the mean of the four torque readings determined at 90, 180, 270 and 360. NOTE 2 For quality control or purpo
28、ses other than testing the adhesive against a specification, other angles may be agreed between the manufacturer and the purchaser of the adhesive. If prevailing torque is measured at an angle other than 180, the angle shall be denoted by a subscript; i.e. 360. Otherwise, prevailing torque measured
29、at 180 shall be designated by PNOTE 3 The prevailing torque can be defined as maxwhen not testing to a specification, maxbeing the maximum torque measured within the first 360 rotation of the nut after the initial breakage of the bond. 4 Principle The test method consists of determining the torque r
30、equired to unscrew a bonded nut and bolt assembly, including the initial torque required to break the bond, and the torque measured after turning the nut 180. The torque strengths are determined for unseated assemblies and for seated assemblies preloaded with a specified input torque. 5 Apparatus 5.
31、1 Test machine with graphic recording, consisting of a clamping device to secure the bolt head, a device for turning the nut at a constant speed, a torque-measuring device (see Figure 2) and a recorder with a response time of 1 ms or less. If a recorder is not used, a data storage system shall be em
32、ployed so that the torque data as a function of the angle of turning can be recalled and plotted at a later time. DIN EN 15865:2009-08 EN 15865:2009 (E) 7 Key 1 Torquemeter 2 Mandrel 3 Nut clamping or securing device 4 Test specimen 5 Bolt clamping or securing device 6 Mandrel 7 Turning device Figur
33、e 2 Example of test apparatus with graphic recording DIN EN 15865:2009-08 EN 15865:2009 (E) 8 5.2 Test machine with direct reading, consisting of a clamping device to secure the head of the bolt, and a torque wrench accurate to 5 % (see Figure 3). Key 1 Torque wrench 2 Nut clamping or securing devic
34、e 3 Test specimen 4 Bolt clamping or securing device Figure 3 Example of test apparatus with direct reading 6 Test specimens 6.1 For testing against a specification, the test specimen shall be an M10 x 38, property class 8.8, zinc-phosphated steel bolt and a similar M10 nut, specified in EN ISO 898-
35、1 and EN 20898-2. NOTE Any size and surface finish of fastener combination may be used by agreement between the interested parties. All fasteners used in unseated assemblies shall have a radial gap of 0,1 mm to 0,2 mm on the minor diameter. The cutting oil used in their manufacture shall be lanolin-
36、free. 6.2 Degrease all nuts and bolts in a permitted cleaning medium, store in a desiccator at (23 2) C, and keep them clean. Use degreased specimens within four days or discard. 6.3 The specimens shall be conditioned and tested in one of the standard laboratory atmospheres specified in EN ISO 291,
37、which shall be stated in the test report. 7 Application of adhesive 7.1 Nuts and bolts shall be preassembled prior to application of the adhesive. Any pairs showing sticking due to burrs or damaged threads shall be discarded. Disassemble the parts. DIN EN 15865:2009-08 EN 15865:2009 (E) 9 7.2 Apply
38、sufficient adhesive to the bolt to completely cover an area equal to the height of the nut plus two threads. Also apply adhesive to the threads of the nut. 8 Assembly 8.1 Assemble not less than five specimens for each test according to 8.2 or 8.3. 8.2 For unseated assemblies, screw the nut onto the
39、bolt by hand allowing two threads to protrude. For preapplied adhesive, screw the nut onto the coated bolt using the apparatus in 5.1 or 5.2 and record the on torque. Allow two coated threads to protrude (see Figure 4). Key 1 Allow two threads to show 2 Coated part Figure 4 Unseated assembly 8.3 For
40、 seated assemblies, screw the nut onto the bolt by hand until the nut strikes the spacer sleeve. Using the apparatus described in 5.1 or 5.2, apply the input torque to load the assembly (see Figure 5). NOTE The preferred input torque is 40 Nm. DIN EN 15865:2009-08 EN 15865:2009 (E) 10 Key 1 Coated p
41、art Figure 5 Seated assembly 8.4 Cure the adhesive in accordance with the adhesive manufactures instruction, with the test specimens standing vertically on the bolt heads. 9 Test procedure 9.1 Secure the bolt head in the clamping device and unscrew the nut at a constant speed. The speed of testing s
42、hall be given in the test report. NOTE The preferred speeds are 2 r/min or 5 r/min or 10 r/min. While it is recognized that a truly constant test speed using a torque wrench as specified in 5.2 cannot be achieved, experience has show that a specified testing speed can be closely approximated if care
43、 is taken to do so. 9.2 Record the breakaway torque or breakloose torque and the prevailing torque in Nm, as measured on the graphic recording equipment or from a direct reading if a torque wrench is used. If graphic recording equipment is used, breakaway and breakloose torques shall be measured at
44、the point on the curve of initial deviation from linearity. 10 Precision The precision of this test method is not known because interlaboratory data are not available. When interlaboratory data are obtained, a precision statement will be added at the time of revision. DIN EN 15865:2009-08 EN 15865:2
45、009 (E) 11 11 Test report The test report shall contain, at least, the following information: a) reference to this European Standard (EN 15865); b) all information necessary for complete identification of the adhesive tested, including type, source, date of manufacture, manufactures code number, bat
46、ch or lot number, and form; c) specimen size used; d) method of cleaning and surface preparation prior to bonding; e) application and bonding conditions used in preparating the specimens; f) conditioning procedure used for specimens prior to testing, and test atmosphere; g) number of specimens teste
47、d; h) testing speed; i) input torque; j) test equipment and recording mode; k) average values and standard deviations determined for breakaway torque, breakloose torque and prevailing torque. DIN EN 15865:2009-08 EN 15865:2009 (E) 12 Bibliography 1 EN ISO 898-6, Mechanical properties of fasteners Part 6: Nuts with specifed proof load values Fine pitch thread (ISO 898-6:1994) DIN EN 15865:2009-08
