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1、BRITISH STANDARD BS ISO 15509:2001 Adhesives Determination of the bond strength of engineering-plastic joints ICS 83.180 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:38:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI B
2、S ISO 15509:2001 This British Standard, having been prepared under the direction of the Sector Policy and Strategy Committee for Materials and Chemicals, was published under the authority of the Standards Policy and Strategy Committee on 8 November 2001 BSI 8 November 2001 ISBN 0 580 38659 7 Nationa
3、l foreword This British Standard reproduces verbatim ISO 15509:2001 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee PRI/52, Adhesives, which has the responsibility to: A list of organizations represented on this committee ca
4、n be 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
5、 “Find” 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
6、legal obligations. aid enquirers to understand the text; present to the responsible international/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
7、. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a blank page, pages 1 to 8, 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 sinc
8、e publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:38:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTERNATIONAL STANDARD ISO 15509 First edition 2001-08-15 Reference number ISO 15509:2001(E) Adhesives Determination of the bond strength of engineering-plas
9、tic joints Adhsifs Dtermination de la rsistance de joints colls des plastiques industriels Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:38:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 15509:2001(E) ii Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:38:55 GMT+00:00 2006, U
10、ncontrolled Copy, (c) BSI ISO 15509:2001(E) iii ContentsPage 1Scope .1 2Normative references .1 3Principle 1 4Specimen 1 5Apparatus .5 6Procedure .5 7Expression of results 8 8Precision .8 9Test report 8 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:38:55 GMT+00:00 2006, Uncontrolled Copy
11、, (c) BSI ISO 15509:2001(E) iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body intere
12、sted in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical
13、Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication
14、 as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such
15、patent rights. International Standard ISO 15509 was prepared by Technical Committee ISO/TC 61,Plastics, Subcommittee SC 11, Products. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:38:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 15509:2001(E) v Introduction Methods of determining the
16、 strength of adhesive joints are well known. Several International Standards describe various methods including the lap-shear test or the butt torsion test. However, these methods are either not suitable for the determination of values which can be used for design purposes, or are restricted to meta
17、llic substrates. Because the existing International Standards for the measurement of the strength of bonded plastic materials are derived from test methods for metals and are less suitable for plastic materials due to the bending of substrates and varying modulus of elasticity, a new test method and
18、 a new test geometry have been developed and are described in this International Standard. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:38:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:38:55 GMT+00:00 2006, Uncontrolled Copy, (c)
19、 BSI INTERNATIONAL STANDARDISO 15509:2001(E) 1 Adhesives Determination of the bond strength of engineering- plastic joints 1Scope This International Standard describes a test method for measuring the shear and/or tensile strength of an adhesively bonded plastic/plastic specimen of a specific design.
20、 This method allows the determination of a combined shear and tensile behaviour of the bond. These shear and tensile values are useful for design purposes. 2Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this
21、International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative doc
22、uments indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 291:1997,Plastics Standard atmospheres for conditioning and testing ISO 10365:1992,Adhesives Des
23、ignation of main failure patterns ISO 13895:1996,Adhesives Guidelines for the surface preparation of plastics 3Principle A hollow cylindrical test specimen of specific design is used for the determination of the shear and tensile strengths of adhesively bonded plastic/plastic joints. These values ca
24、n be used in calculation programmes. The rotationally symmetrical specimen allows testing under tensile, torsional or combined tensile/torsional loads if a suitable test machine is used. NOTE 1The shear stress is not uniformly distributed as the stress varies by approximatelyfrom the inner radius to
25、 the outer radius. Therefore the calculated shear strength represents an “average” value. NOTE 2The origin of the stress distribution curve is the deformation of the bond line, as the deformation increases with increasing diameter. The superimposition of shear and tensile stresses is negligible in t
26、he bondline of rotationally symmetrical specimen compared to lap-shear specimen as described in ISO 4587,Adhesives Determination of tensile lap-shear strength of rigid-to-rigid bonded assemblies. There are practically no significant peaks in the stress distribution curve compared with the peaks obse
27、rved in a lap-shear specimen, since the bond is continuous in the direction of the displacement. 4Specimen 4.1Preparation 4.1.1General Prepare the adherends by injection moulding as described in 4.1.2 to 4.1.5. 15 % Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:38:55 GMT+00:00 2006, Unco
28、ntrolled Copy, (c) BSI ISO 15509:2001(E) 2 4.1.2Mould The mould used shall be of the ejector-pin type with a limitation of one moulding per shot. The mould cavity shall be filled through a cone gate. NOTEThe use of this type of mould avoids weld lines which could lead to symmetry problems with the m
29、oulding after cooling, or to a weakening of the mechanical properties in this area. A schematic drawing of an injection-moulded adherend is shown in Figure 1. The mould shall be manufactured in accordance with conventional mould-making processes. It shall be of an adequate size so as to allow the pr
30、eparation of adherends of the dimensions shown in Figure 21). 4.1.3Injection-moulding parameters The parameters shall be agreed upon between the user and the plastic material supplier. NOTE 1The injection-moulding parameters will depend on the geometry of the mould and the nature of the plastic mate
31、rial. Key 1Base of adherend 2Sprue 3Bonding areas 4Degassing zone a Injection direction b Ejection direction Figure 1 Schematic drawing of one of the adherends after moulding 1)One possible supplier of such a mould is Rusko-Formen GmbH, Friedrich-List-Strae 10, D-73249 Wernau, Germany. Licensed Copy
32、: sheffieldun sheffieldun, na, Mon Nov 27 07:38:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 15509:2001(E) 3 The plastic material shall be pre-dried. The temperature and time shall be as agreed upon between the user and the plastic material supplier. NOTE 2Temperatures betweenand(depending on t
33、he type of plastic) over periods oftoin a vacuum oven are the preferred conditions. 4.1.4Removal of the sprue Remove the central part, or sprue, from each of the adherends. A simple method consists of using a chisel while rotating the adherend in a lathe. Avoid any contact with the bonding area duri
34、ng this operation. 4.1.5Geometry The specimen shall consist of two adherends bonded together. The dimensions of each adherend shall be as given in Figure 2. 4.2Surface preparation Prepare the bonding surfaces of the adherends in accordance with ISO 13895. NOTECorona discharge at ambient pressure is
35、the preferred method. Dimensions in millimetres Figure 2 Dimensions of adherend 100 C 150 C 4 h6 h Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:38:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 15509:2001(E) 4 4.3Assembly of the specimen in the mounting jig Assemble the specimen usin
36、g the mounting jig shown in Figure 3. NOTE 1The mounting jig allows a small amount of movement of the adherends. This compensates for deformations which are caused by the shrinkage or thermal expansion of the adhesive and the adherends during curing. Key 1Baseplate 2Guide pin 3Fixation holding the a
37、dherend on the baseplate (three fixation points round the circumference, using springs exceeding a force higher than the weight of the adherend) 4Metal sleeve 5Screw for fixing spacers on the metal sleeve 6Gap for adhesive bond 7Adherend 8Spacer used to define the bond gap thickness (three pairs of
38、spacers round the circumference, manufactured from the same material as the adherends) 9Adjustment screw (for adjusting bond gap) Figure 3 Schematic drawing of the specimen during the assembly process Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:38:55 GMT+00:00 2006, Uncontrolled Copy,
39、(c) BSI ISO 15509:2001(E) 5 The spacers shall be made of the same material as the adherends in order to eliminate differences in thermal expansion between the spacers and the adherends. The spacers shall be linked to the metal sleeves which shall be freely movable along the guide pins. The alignment
40、 of the adherends in the two halves of the mounting jig shall be ensured by a metal centering cone on each baseplate. Each cone shall be freely rotating and have a spring (strong enough to prevent the adherend sliding) which presses the adherend against the centering cone. When contact is establishe
41、d between the adherends and the centering cones, fix the adherends in place at the fixation points. Assemble both baseplates (with the adherends but without adhesive) by introducing the guide pins into the sleeves and verify the gap between them (for the adhesive bond). The gap can be adjusted ba me
42、ans of the adjustement screws. NOTE 2The adjustment is usually made in order to achieve a bond thickness of. 4.4Application of the adhesive Apply the adhesive using the application device as shown in Figure 4, as follows. Place a baseplate carrying one of the adherends under the dispenser. Adjust th
43、e dispenser so that the nozzle is located exactly above the application area. Apply the adhesive. NOTEAn automated rotating device coupled with the dispenser has been shown to give good results. Assemble the two halves of the mounting jig and cure the adhesive in accordance with the manufacturers in
44、structions. 4.5Conditioning and testing atmosphere The specimens shall be conditioned and tested in one of the standard laboratory atmospheres specified in ISO 291. 5Apparatus 5.1Test machine, equipped with a temperature-controlled enclosure for tests carried out at temperatures other than ambient.
45、5.2Clamping jig (see Figure 5), consisting of an adapter, and two jaws with hinge, screw and locknut. NOTEThis special clamping jig allows easy and quick fixing of the specimen in the test machine. 6Procedure Place the adapter and the specimen in the jaws. Secure them with the screws. Draw in the lo
46、cknut to hold the specimen by its flange Insert the clamping jigs in the test machine, ensuring that no load is applied to the bonded joint. Apply a tensile force at a crosshead speed ofand/or a torsional force at a speed ofuntil the joint fails. Record the ultimate force reached during the test. Ex
47、amine the surface of the bonded parts after failure, and record the failure pattern in accordance with ISO 10365. 0,1 mm 1 mm/min5/min Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:38:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 15509:2001(E) 6 Key 1Dispenser 2Dispenser nozzle 3Adhe
48、rend 4Fixation holding the adherend on the baseplate 5Centering cone 6Baseplate 7Rotating support Figure 4 Application of the adhesive Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:38:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 15509:2001(E) 7 Key 1Adapter 2Jaws (hinge, screw and l
49、ocknut not shown) 3Spring 4Metal centering cone 5Test specimen Figure 5 Schematic drawing of clamping jig Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 27 07:38:55 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO 15509:2001(E) 8 7Expression of results The bonded area corresponds to where is the outer diameter of the bonded area, expressed in millimetres (mm); is the inner diameter of the bonded area, expressed in millimetres (mm). Sinceand, the area is. The tensile strength, in pascals is given by the force at failure in newtons, divided by the bonde
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