1、BRITISH STANDARDBS EN 546-4:2006Aluminium and aluminium alloys Foil Part 4: Special property requirementsThe European Standard EN 546-4:2006 has the status of a British StandardICS 77.150.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g
2、51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 546-4:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2007 BSI 2007ISBN 978 0 580 50133 3National forewordThis British Standard wa
3、s published by BSI. It is the UK implementation of EN 546-4:2006. It supersedes BS EN 546-4:1997 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee NFE/35, Light metals and their alloys.A list of organizations represented on NFE/35 can be obtained on requ
4、est to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publicationAmd. No. Date CommentsE
5、UROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 546-4December 2006ICS 77.150.10 Supersedes EN 546-4:1997 English VersionAluminium and aluminium alloys - Foil - Part 4: Special propertyrequirementsAluminium et alliages daluminium - Feuille mince - Partie 4: Exigences de proprits particuliresAluminiu
6、m und Aluminiumlegierungen - Folien - Teil 4:Besondere EigenschaftsanforderungenThis European Standard was approved by CEN on 25 November 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a nat
7、ional standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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
8、 other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland,
9、France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR
10、NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 546-4:2006: EEN 546-4:2006 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4
11、 4 Application of special property testing .4 5 Porosity.5 5.1 Test principle5 5.2 Test method5 5.3 Acceptance values.6 5.4 Sampling and frequency of testing6 6 Wettability.6 6.1 Test principle6 6.2 General test conditions.6 6.3 Test procedures.7 6.4 Frequency of testing .10 7 Stickiness .10 7.1 Tes
12、t principle10 7.2 Test method10 7.3 Acceptance criteria11 7.4 Frequency of testing .11 8 Burst strength 11 9 Erichsen cupping test .12 9.1 Test principle12 9.2 Test method12 9.3 Acceptance criteria12 9.4 Frequency of testing .12 Bibliography 13 Table Table 1 Applicability of special property tests t
13、o product group .5 EN 546-4:2006 (E) 3 Foreword This document (EN 546-4:2006) has been prepared by Technical Committee CEN/TC 132 “Aluminium and aluminium alloys”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publicatio
14、n of an identical text or by endorsement, at the latest by June 2007, and conflicting national standards shall be withdrawn at the latest by June 2007. This document supersedes EN 546-4:1997. Within its programme of work, Technical Committee CEN/TC 132 entrusted CEN/TC 132/WG 6 “Foil and finstock“ t
15、o revise EN 546-4:1997. The following modifications have been made: Clause 3: reference to EN 12258-1:1998 has been added, the definition of perforation has been deleted; Clause 4: Table 1: limitation of pinholes (6 m to 20 m) detection range for light gauge converter double roller (6 m to 70 m) has
16、 been deleted; Clause 6: addition of test by use of Cotton Wool Pad (6.3.4); Figure 3 second Figure has been added. EN 546 comprises the following parts under the general title “Aluminium and aluminium alloys - Foil“: Part 1: Technical conditions for inspection and delivery Part 2: Mechanical proper
17、ties Part 3: Tolerances on dimensions Part 4: Special property requirements Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. CEN/TC 132 affirms it is
18、its policy that in the case when a patentee refuses to grant licenses on standardised standard products under reasonable and not discriminatory conditions, then this product shall be removed from the corresponding standard. According to the CEN/CENELEC Internal Regulations, the national standards or
19、ganizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
20、Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 546-4:2006 (E) 4 1 Scope This document specifies the requirements for special properties of wrought aluminium and wrought aluminium alloy foil and their tests. It applies to flat rolled products. It does not apply to lacquered, pa
21、inted, embossed or laminated products. The technical conditions for inspection and delivery of foil are specified in EN 546-1. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For u
22、ndated references, the latest edition of the referenced document (including any amendments) applies. EN 12258-1:1998, Aluminium and aluminium alloys Terms and definitions Part 1: General terms EN ISO 20482, Metallic materials Sheet and strip Erichsen cupping test (ISO 20482:2003) 3 Terms and definit
23、ions For the purposes of this document, the terms and definitions given in EN 12258-1:1998 and the following apply. 3.1 pinholes (foil) randomly distributed voids in foil of gauge 6 m to 20 m of normally round or oval shape with a maximum diameter 0,2 mm which occur at regular intervals throughout t
24、he rolled coil length 4 Application of special property testing The applicability of tests for special properties of foil products is given in Table 1. The tests shall only be carried out when agreed between supplier and purchaser and stated on the order. EN 546-4:2006 (E) 5 Table 1 Applicability of
25、 special property tests to product group Product group and gauge range Porosity Wettability Stickiness Burst strengthErichsencupping test Pinholes Roll holes Light gauge NA NA converter double rolled (6 m to 70 m) (6 m to 50 m only) Heavy gauge converter single rolled NA NA NA (35 m to 200 m) (35 m
26、to 50 m only) Consumer foil (10 m to 24 m) NA NA NA Container foil single rolled NA NA NA NA NA (35 m to 200 m) x= test applicable NA = not applicable 5 Porosity 5.1 Test principle As rolled foil is examined by using a light box in an area of low illumination, porosity is seen as light points agains
27、t the dark foil surface. The light box, consists of translucent glass, lit from below by a luminous source giving an even illumination of 1 000 lux to 1 500 lux. The size of the light box is determined by the dimension of the largest foil sample to be examined. 5.2 Test method Dim the light in the r
28、oom in which the test is carried out to 20 lux to 50 lux. Place the foil test sample on the light box with its matt surface facing the observer. Mask the area of the light box not covered by the test sample. Observe the test sample from a distance of approximately 0,5 m. The test area shall be selec
29、ted by one of the following methods: a) worst area selection: a sample of 1 dm2is selected from the area exhibiting the highest porosity (worst field); b) random selection: a sample of 1 m2is selected at random. Count the number of pinholes or roll holes in the sample. Ignore pinholes less than 0,02
30、0 mm in diameter. EN 546-4:2006 (E) 6 For the worst area selection sample, count the number of voids in 1 dm2.For the random selection sample, count the number of voids in 1 m2. Report separately the number of pinholes and roll holes per unit area. 5.3 Acceptance values The maximum acceptable number
31、 of pinholes and roll holes shall be agreed between supplier and purchaser. 5.4 Sampling and frequency of testing One full width test sample at correct nominal gauge measuring approximately 1 m in length along the rolling direction shall be taken and tested from every three rolled coils. 6 Wettabili
32、ty 6.1 Test principle The test shall apply to aluminium foil in the gauge range 6 m to 200 m. The surface of the fully annealed foil is assessed according to its ability to be wetted by liquids applied under clearly defined conditions. 6.2 General test conditions 6.2.1 General Carry out the tests at
33、 ambient temperature. Remove the outside wraps to reduce the coil build-up by a minimum of 3 mm in order to obtain a representative sample before performing the test. Usually the test is carried out on the matt side of the foil. Precautions shall be taken to prevent the liquids from accidentally com
34、ing into contact with edge of reel. Do not repeat tests on the same area of sample. 6.2.2 Equipment used Four techniques are recommended: 1) the droplet bottle, to be used for depositing drops of liquid on the surface to be tested (see 6.3.1); 2) a spray bottle, to apply a fine spray mist across the
35、 width of the metal surface to be tested (see 6.3.2); 3) a spray bottle, to enable a continuous stream of liquid to be applied to the surface (see 6.3.3); 4) cotton wool soaked in the appropriate liquid to be used for smearing the surface under test (see 6.3.4). The cotton wool shall be clean. This
36、test should be used as a referee method. Other tests can be used after agreement between supplier and customer. EN 546-4:2006 (E) 7 6.2.3 Liquid used The following liquids shall be used for all tests: distilled water; or distilled water mixed with industrial ethyl-alcohol to a concentration of 10 %
37、or 20 % by volume. 6.3 Test procedures 6.3.1 Test by droplet 6.3.1.1 Test method Use a droplet bottle to drop 40 mg to 80 mg drops of liquid onto the horizontal metal surface at a rate of one drop every 5 cm to 10 cm across the width of the web. Tilt the surface between 40and 60(see Figure 1). Deter
38、mine the wettability index from the tail left by the movement of the droplets across the surface. Figure 1 Test by droplet EN 546-4:2006 (E) 8 6.3.1.2 Test results If the test is performed with distilled water, the wettability index is shown by the shape of the trace given on the surface taken from
39、the worst area of the foil. The wettability indices are defined from A to G in Figure 2. Wettability indices included between A to C are acceptable. distilled water A B C D E distilled water mixed with industrial ethyl-alcohol to a concentration of + 10 % volume B C D E F distilled water mixed with
40、industrial ethyl-alcohol to a concentration of + 20 % volume C D E F G Figure 2 Wettability indices 6.3.1.3 Acceptance criteria The required wettability shall be agreed between supplier and purchaser. 6.3.2 Test by fine spray 6.3.2.1 Test method Position the metal surface at an angle, approaching th
41、e vertical. Use a spray bottle to apply a fine spray mist across the width of the metal surface. 6.3.2.2 Test results The whole surface under the liquid spray shall remain uniformly wetted by the applied liquid: distilled water : wettability A; distilled water mixed with industrial ethyl alcohol to
42、a concentration of 10 % by volume : wettability B; distilled water mixed with industrial ethyl alcohol to a concentration of 20 % by volume : wettability C. 6.3.2.3 Acceptance criteria Minimum values shall be agreed between supplier and purchaser. 6.3.3 Test by liquid stream 6.3.3.1 Test method Posi
43、tion the metal surface at an angle of between 40 and 60. Using a spray bottle, apply a continuous stream of test liquid across the width (see Figure 3). EN 546-4:2006 (E) 9 Figure 3 Test by liquid stream 6.3.3.2 Test results The whole surface under the stream of liquid and its subsequent spread down
44、wards shall remain uniformly wetted: distilled water : wettability A; distilled water mixed with industrial ethyl alcohol to a concentration of 10 % by volume : wettability B; distilled water mixed with industrial ethyl alcohol to a concentration of 20 % by volume : wettability C. 6.3.3.3 Acceptance
45、 criteria Minimum values shall be agreed between supplier and purchaser. 6.3.4 Test by use of Cotton Wool Pad 6.3.4.1 Test method A clean and dry piece of cotton wool is carefully dipped in the required liquid. It is brought into contact with the metal surface on one edge and moved towards the other
46、 edge. The surface is usually horizontal (see Figure 4). 6.3.4.2 Test results The whole surface moistened by the cotton wool shall remain uniformly wetted: distilled water : wettability A; distilled water mixed with industrial ethyl alcohol to a concentration of 10 % by volume : wettability B; disti
47、lled water mixed with industrial ethyl alcohol to a concentration of 20 % by volume : wettability C. EN 546-4:2006 (E) 10 6.3.4.3 Acceptance criteria The whole surface moistened by the cotton wool shall remain wet: Minimum values shall be agreed between supplier and purchaser. Figure 4 Cotton Wool P
48、ad Test 6.4 Frequency of testing Random testing of sufficient frequency to verify control capability, to the satisfaction of the purchaser shall be carried out. 7 Stickiness 7.1 Test principle The test applies to fully annealed aluminium foil in the gauge range 6 m to 50 m. The ease of unwind is eva
49、luated by assessing the stickiness between laps. 7.2 Test method Carry out the test at room temperature. Remove a minimum of 3 mm from the build up on the coil to obtain a representative sample. Place the reel onto a horizontal axis, enabling it to be easily moved by hand. Wind the foil back on itself with the web falling freely under gravity (see Figure 5). EN 546-4:2006 (E) 11 Key 1 Line of unwind 2 Length of foil Figure 5 Stickiness test The line of unwind (
