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1、BRITISH STANDARD BS EN 582:1994 Thermal spraying Determination of tensile adhesive strength The European Standard EN 582:1993 has the status of a British Standard UDC 621.793.7:620.172.25 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:02:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN
2、 582:1994 This British Standard, having been prepared under the direction of the Surface Treatments and Coatings Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 January 1994 BSI 09-1999 The following BSI references relate to the work o
3、n this standard: Committee reference STC/40 Draft for comment 91/56987 DC ISBN 0 580 22327 2 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards organizations of the following countr
4、ies: AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standardiseringsraad FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organization for Standardization Icela
5、ndTechnological Institute of Iceland IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalInstituto Portugus da Qualidade Spai
6、nAsociacin Espaola de Normalizacin y Certificacin SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07
7、:02:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 582:1994 BSI 09-1999i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 Text of EN 5823 National annex NA (informative) Committees responsibleInside back cover Licensed Copy: sheffieldun sheffieldun, na, Mo
8、n Nov 06 07:02:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 582:1994 ii BSI 09-1999 National foreword This British Standard has been prepared under the direction of the Surface Treatments and Coatings Standards Policy Committee and is the English language version of EN 582:1993 Thermal sprayi
9、ng Determination of tensile adhesive strength, published by the European Committee for Standardization (CEN). 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
10、 Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have
11、 had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:02:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 582 October 1993 UDC 621.793.7:620.17
12、2.25 Descriptors: Metal coatings, metal spraying, tension tests, determination, mechanical strength, adhesion English version Thermal spraying Determination of tensile adhesive strength Projection thermique Mesure de ladhrence par essais de traction Thermisches Spritzen Ermittlung der Haftzugfestigk
13、eit This European Standard was approved by CEN on 1993-10-01. 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 national standard without any alteration. Up-to-date lists and bibliographical refe
14、rences concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member i
15、nto its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,
16、Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1993 Copyright reserved to CEN members Ref. No. EN 582:1993 E Licensed Copy: sheffieldun sheffieldun, na,
17、Mon Nov 06 07:02:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 582:1993 BSI 09-1999 2 Foreword This European Standard has been prepared by Technical Committee CEN/TC 240, Thermal spraying and thermally sprayed coatings, of which the secretariat is held by DIN. This draft European Standard was sub
18、mitted to the formal vote and accepted by CEN as a European Standard. The 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 April 1994, and conflicting national standards shall be withdrawn at the latest
19、 by April 1994. In accordance with the CEN/CENELEC Internal Regulations the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United
20、 Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Definition3 4Equipment3 5Specimens4 5.1Shape4 5.2Preparation5 5.3Number of specimens to be tested5 6Procedure5 7Evaluation5 8Test report5 9Possible faults in the preparation of specimens and in testing5 Figure 1 Example of a test arra
21、ngement with specimen A3 Figure 2 Specimen A for tensile test4 Figure 3 Specimen B for tensile test4 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:02:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 582:1993 BSI 09-19993 1 Scope In the test to determine the tensile adhesive strength of t
22、hermally sprayed deposits, the specimen is loaded in tension. The test is conducted to determine the strength of the coating and/or the strength of the bond between the spray deposit and the parent metal. The test is used to evaluate the effects of parent metal and spray deposit material, preparatio
23、n of the surface of the workpiece, and the spraying conditions on the bond and adhesive strength of thermally sprayed coatings, or for routine supervision of the spray works. Comparative statements are to be based in the test report. NOTEThe tensile adhesive strength test method is not recommended f
24、or very thin and porous deposits. In this case, a bend test has proved to be more appropriate. 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
25、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 undated references the latest edition of the publication referred to applies. EN
26、10002-2, Metallic materials Tensile testing Part 2: Verification of the force measuring system of the tensile testing machines. 3 Definition For the purpose of this standard the following definition applies. tensile adhesive strength the tensile adhesive strength RH is the strength obtained in the t
27、ension test, calculated from the quotient of the maximum load Fm and the cross-section of the specimen at the fractured face 4 Equipment A tensile testing machine in accordance with EN 10002-2, class 1 and a clamping system are to be used, to ensure concentric clamping and loading of the specimens (
28、see Figure 1). Figure 1 Example of a test arrangement with specimen A Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:02:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 582:1993 4 BSI 09-1999 5 Specimens 5.1 Shape For the determination of the tensile adhesive strength in the tensile test,
29、 specimens of shapes A and B and of 25 mm and 40 mm diameter are specified. Specimen A (see Figure 2) consists of a substrate block to which the deposit is applied at the front face, and the loading block which is adhesive bonded to the flat deposit surface. Specimen B (see Figure 3) consists of two
30、 loading blocks and a disc. Deposit is thermally sprayed to one side of the disc, and the disc then is adhesively bonded to the two loading blocks. When preparing the specimens care shall be taken to avoid any bending load. For a cylindrical bonding, the assembly shall be inserted in a suitable fixt
31、ure and the axis of the specimen shall be perpendicular to the deposited front face. In the event of low-strength parent metal being used for the test, thread lengths and diameters shall be varied accordingly, and provided with screw sockets if required. Figure 2 Specimen A for tensile test Figure 3
32、 Specimen B for tensile test Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:02:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 582:1993 BSI 09-19995 5.2 Preparation The flat end of the substrate block is made of the specified parent metal and the deposit applied to it in such a way that
33、no spray material can deposit on the cyclindrical specimen. The specimens shall be prepared in the same manner as the workpieces in practice. Spray conditions shall be equal to those of practical work. Then the spray deposit surface shall be prepared appropriate for subsequent adhesive bonding. Care
34、 shall be taken to ensure perpendicularity of deposit surface and specimen axis. The loading block is adhesively bonded to the spray deposit (specimen A), or to the disc deposited at one side (specimen B). For the adhesive bonding procedure and storage of the specimens for setting of the adhesive, t
35、he specifications of the adhesive manufacturer are to be followed. For the setting of the adhesive, the parts of the test assembly shall be in the vertical position in the clamping device, and loaded vertically. All details for preparation of the specimens are an integral part of the test report. 5.
36、3 Number of specimens to be tested At least three specimens, spray deposited in one cycle, shall be tested. 6 Procedure The specimen with the clamping device is inserted in the tensile testing machine and loaded in tension at a constant rate and without jerks until fracture occurs. The increase in t
37、ension per second should not exceed (1 000 100) N. Testing is to be performed at ambient temperature. For a series of tests, equal test conditions shall be maintained. 7 Evaluation The diameter of the substrate block shall be measured to an accuracy of 0,1 mm. From this, the specimen cross-section a
38、t the adhesion surface area of the spray deposit may be calculated. Only results from those specimens that exhibit a fracture in the bonding area of the spray deposit with the parent metal or in the spray deposit itself are used for the calculation. When a fracture is found in the zone of the adhesi
39、ve, this specimen shall not be included for the calculation of tensile adhesive strength mean values. For routine supervision of thermal spraying in fabrication, the fracture may also be located in the adhesive bond, provided that minimum bond strength requirements have been met. The statistical mea
40、n value for the tensile strength RH shall be calculated. 8 Test report The test report shall contain the following information about factors for every specimen tested in accordance with this standard: a) inspection body, inspector, date; b) parent metal; c) preheat; d) preparation of the surface of
41、the parent metal (blasting parameter, roughness); e) spray deposit material; f) application method and procedures; g) thickness of the deposit in mm with 0,01 mm accuracy h) postspray treatment of the deposit; i) characteristics of the bonding agent and application procedures; j) shape and diameter
42、of the specimens in mm with 0,1 mm accuracy; k) number, arrangement and position of specimens during spraying; l) tensile adhesive strength RH in N/mm2 for every individual specimen, and evaluation of the mean strength value; m) location of the fracture (in adhesion surface area, in the spray deposi
43、t, in the bonding material or across the entire joint); n) particularities. 9 Possible faults in the preparation of specimens and in testing a) Contaminated cyclinder wall through bonding agent and/or spray deposit. b) Angular and/or positional displacement of substrate block and loading block. c) T
44、esting machine, loading rate and fixed end moment of the specimen in the testing machine. d) Spray deposit not uniform in thickness. e) Deposit damaged through inadequate postspray treatment. f) Nonobservance of bonding agent instructions given by the manufacturer (wetting, storage, setting, and loa
45、ding for setting). Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:02:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 6 blank Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:02:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 582:1994 BSI 09-1999 National annex NA (informative)
46、Committees responsible The United Kingdom participation in the preparation of this European Standard was entrusted by the Surface Treatments and Coatings Standards Policy Committee (STC/-) to Technical Committee STC/40 upon which the following bodies were represented: Aluminium Federation Associatio
47、n of Metal Sprayers British Steel Industry Society of Motor Manufacturers and Traders Limited Welding Institute Zinc Development Association Coopted member Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 06 07:02:34 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 582:1994 BSI 389 Chiswick High
48、Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendm
49、ent or revision. Users of British Standards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: 020 8996 9000. Fax: 020 8996 7400. BSI offers members an individual updating service called PLUS which ens
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