1、December 2010 Translation by DIN-Sprachendienst.English price group 9No 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).IC
2、S 19.100!$llm“1737374www.din.deDDIN EN ISO 7963Non-destructive testing Ultrasonic testing Specification for calibration block No. 2 (ISO 7963:2006)English translation of DIN EN ISO 7963:2010-12Zerstrungsfreie Prfung Ultraschallprfung Beschreibung des Kalibrierkrpers Nr 2 (ISO 7963:2006)Englische ber
3、setzung von DIN EN ISO 7963:2010-12Essais non destructifs Contrle par ultrasons Spcifications relatives au bloc dtalonnage n 2 (ISO 7963:2006)Traduction anglaise de DIN EN ISO 7963:2010-12SupersedesDIN EN 27963:1992-06www.beuth.deDocument comprises pagesIn case of doubt, the German-language original
4、 shall be considered authoritative.1512.10 DIN EN ISO 7963:2010-12 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 138 “Non-destructive testing” (Secretariat: AFNOR, France) in collaboration with Technical Committee ISO/TC 135 “N
5、on-destructive testing”. The responsible German body involved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee), Working Committee NA 062-08-23 AA Ultraschallprfung. The reference to ISO/TC 44/SC 5 in the Introduction is not correct, the responsible se
6、cretariat is ISO/TC 135/SC 3 “Ultrasonic testing”. The DIN Standard corresponding to the International Standard referred to in this document is as follows: ISO 4287 DIN EN ISO 4287 Amendments This standard differs from DIN EN 27963:1992-06 as follows: a) Clause 3 “Terms and definitions has been adde
7、d”, b) Clause 7 “Marking” has been included; c) Clause 9 “Certificate” has been included; d) the standard has been restructured. Previous editions DIN 54122: 1973-03, 1973-12 DIN EN 27963: 1992-06 National Annex NA (informative) Bibliography DIN EN ISO 4287, Geometrical Product Specifications (GPS)
8、Surface texture: Profile method Terms, definitions and surface texture parameters 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 7963 September 2010 ICS 25.160.40 Supersedes EN 27963:1992English Version Non-destructive testing Ultrasonic testing Specification for calibration block No. 2
9、(ISO 7963:2006) Essais non destructifs Contrle par ultrasons Spcifications relatives au bloc dtalonnage n 2 (ISO 7963:2006) Zerstrungsfreie Prfung Ultraschallprfung Beschreibung des Kalibrierkrpers Nr 2 (ISO 7963:2006) This European Standard was approved by CEN on 26 August 2010. CEN members are bou
10、nd to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CE
11、N 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 translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same stat
12、us as theofficial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,Portugal,
13、Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reser
14、ved worldwide for CEN national Members. Ref. No. EN ISO 7963:2010: EEN ISO 7963:2010 (E) Contents Page Foreword 3Introduction 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions. 5 4 Dimensions 5 5 Material 5 6 Preparation 7 7 Marking 7 8 Method of use 7 8.1 Setting of the time base . 7
15、 8.2 Sensitivity setting and probe checking 9 9 Certificate 11 Annex A (normative) Calibration block characteristics and use 12 Bibliography . 13 2DIN EN ISO 7963:2010-12 EN ISO 7963:2010 (E) Foreword The text of ISO 7963:2006 has been prepared by Technical Committee ISO/TC 135 “Non-destructive test
16、ing” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 7963:2010 by Technical Committee CEN/TC 138 “Non-destructive testing” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publi
17、cation of an identical text or by endorsement, at the latest by March 2011, and conflicting national standards shall be withdrawn at the latest by March 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shal
18、l not be held responsible for identifying any or all such patent rights. This document supersedes EN 27963:1992. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgari
19、a, Croatia, 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. Endorsement notice Th
20、e text of ISO 7963:2006 has been approved by CEN as a EN ISO 7963:2010 without any modification. 3DIN EN ISO 7963:2010-12 Introduction Calibration block No. 2 differs in size and shape from that described in ISO 2400. Calibration block No. 2 is very much smaller and lighter, and its geometry is much
21、 simpler. Calibration block No. 2 does not offer as much scope as the larger block; in particular it is not meant to check an ultrasonic flaw detector completely. However, calibration block No. 2 makes it possible, during practical testing, to check simply, from time to time, the setting of the time
22、 base and the sensitivity of the ultrasonic equipment. Moreover, it is suited to checking the beam angle and the probe index of miniature angle-beam probes. NOTE Calibration block No. 1 is currently specified in EN 12223. Requests for official interpretations of any aspect of this International Stan
23、dard should be directed to the Secretariat of ISO/TC 44/SC 5 via your national standards body, a complete listing which can be found at www.iso.org. 4EN ISO 7963:2010 (E) DIN EN ISO 7963:2010-12 1 Scope This International Standard specifies the dimensions, material, manufacture and methods of use fo
24、r calibration block No. 2 for calibrating and checking ultrasonic testing equipment. 2 Normative 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 t
25、he referenced document (including any amendments) applies. ISO 4287, Geometrical Product Specifications (GPS) Surface texture: Profile method Terms, definitions and surface texture parameters ISO 5577, Non-destructive testing Ultrasonic inspection Vocabulary EN 10025-1, Hot rolled products of struct
26、ural steels Part 1: General technical delivery conditions 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 5577 apply. 4 Dimensions The dimensions of the block are given in Figure 1. The tolerances are 0,1 mm, except on the length of the engraved scal
27、e where it is 0,5 mm. Average surface roughness values, Ra, are defined in accordance with ISO 4287. The thickness of the block can be greater than 12,5 mm (see A.1). 5 Material The calibration block shall be made of steel of grade S355JO in accordance with EN 10025-1 or equivalent. 5EN ISO 7963:201
28、0 (E) DIN EN ISO 7963:2010-12 Dimensions in millimetres, surface roughness in micrometres Key 1 reflection surface Figure 1 Calibration block No. 2 for ultrasonic testing Dimensions of block and scales 6EN ISO 7963:2010 (E) DIN EN ISO 7963:2010-12 6 Preparation The calibration block shall be homogen
29、eous and free from defects revealed by ultrasonic testing (see A.2). In order to obtain a fine grain structure and good homogeneity, before final machining the block shall be heat treated as follows: a) maintain at 920 C for 30 min with water-quenching; b) reheating to 650 C for at least 2 h with co
30、oling in still air. After heat treatment, and prior to machining, the block shall undergo further ultrasonic testing from two different directions at right angles to each other and in the direction of rolling. At least 2 mm shall be removed from all surfaces after heat treatment. All dimensions and
31、surface finishes shall be in accordance with Figure 1. In order to prevent parasitic effects, the depth of the marks of the engraved scale shall be 0,1 mm 0,05 mm. The length of the marks shall be 6 mm and the tolerance on the positioning of the marks shall be 0,2 mm. On completion of machining, a f
32、inal ultrasonic testing shall be carried out. The velocity of longitudinal waves shall be verified as being 5 920 m/s 30 m/s and the velocity of transverse waves shall be verified as being 3 255 m/s 15 m/s. 7 Marking Reference marks on block No. 2 shall be permanently marked as shown in Figure 1. Ad
33、ditionally the block shall be permanently marked with the manufacturers trade mark, the number of this International Standard, and a unique serial number. 8 Method of use 8.1 Setting of the time base To set the time base, the leading edge (left side) of successive echoes shall be adjusted to coincid
34、e with the appropriate scale markings on the screen of the measuring equipment. The pulse-travel time depends on the velocity of ultrasonic waves in the material examined. 8.1.1 Calibration of the time base up to 250 mm with a straight beam probe The position of the probe on the reflective side of t
35、he calibration block shall be as indicated in Figure 2a). Figure 2b) is a schematic representation of the screen (A-scan) of the instrument for calibration of a range of 50 mm. NOTE Depending on the probe and the frequency used, difficulties can arise when calibrating distances greater than 10 times
36、 the thickness of the block. 7EN ISO 7963:2010 (E) DIN EN ISO 7963:2010-12 Dimensions in millimetres a) Position of probe on the calibration block b) Schematic representation of the A-scan for calibration of a range of 50 mm Figure 2 Calibration of time base up to 250mm with a straight-beam probe 8.
37、1.2 Calibration of the time base for 100 mm or 125 mm with a miniature angle-beam probe The position of the miniature shear-wave probe on the calibration block shall be as shown in Figure 3a) for a distance of 125 mm and in Figure 3b) for a distance of 100 mm. The screen of the instrument for the ca
38、libration of these two ranges is shown schematically in Figures 3a) and 3b). Dimensions in millimetres a) For a range of 125 mm b) For a range of 100 mm Figure 3 Position of miniature shear-wave probe on the calibration block 8EN ISO 7963:2010 (E) DIN EN ISO 7963:2010-12 8.2 Sensitivity setting and
39、probe checking 8.2.1 General A large number of factors can influence the sensitivity setting (see A.3). 8.2.2 Longitudinal-wave probes Sensitivity setting The probe shall be placed in position “a” as indicated in Figure 4. The A-scan representing the successive echoes shall be used as a reference fo
40、r setting sensitivity. The reflection from the 5 mm diameter hole, position “b” in Figure 4 may also be used, the probe being placed so that the corresponding echo amplitude is at its maximum. Figure 4 Straight-beam probes Sensitivity setting 8.2.3 Miniature shear-wave probes 8.2.3.1 Sensitivity set
41、ting The maximum echo from the 5 mm diameter hole shall be used as a reference for setting sensitivity (see Figure 5, position “a”). Figure 5 Miniature angle-beam probes Sensitivity setting Alternatively, it is possible to make use of the reflections from the cylindrical surfaces of radii 50 mm and
42、25 mm, respectively. In this case, there are two possibilities: a) by using a calibrated gain control, the amplitude of the echo from the cylindrical surface is initially set to 80 % of screen height and subsequently adjusted to the level desired (see Figure 5, position “b”); b) without the use of a
43、 calibrated gain control, the successive echoes from the cylindrical surfaces can be used for the adjustment of sensitivity (see Figure 6). 9EN ISO 7963:2010 (E) DIN EN ISO 7963:2010-12 When checking probes, the acoustic coupling is an important factor, and when comparing probes, the same coupling m
44、edium shall be used. Figure 6 Miniature angle-beam probes Sensitivity setting without calibrated gain control 8.2.3.2 Determination of the position of the probe index The miniature angle-beam probe shall be positioned as shown in Figures 3a) or 3b) and moved parallel to the main faces of the calibra
45、tion block until the amplitude of the echo from the cylindrical surface has reached its maximum. The probe index coincides with the centre mark of the millimetre scale of the block. 8.2.3.3 Determination of beam angle The echo obtained from the 5 mm diameter hole is used to determine the beam angle.
46、 The miniature shear-wave probe shall be moved parallel along the main faces of the calibration block until the amplitude of the echo from the 5 mm diameter hole has reached its maximum. The beam angle is obtained either by direct reading of the scale engraved on the calibration block, coinciding wi
47、th the index mark of the probe, or by interpolation if the position found does not coincide with one of the scale lines. The positions shown in Figure 7 make it possible to check beam angles of 45, 60 and 70 probes. Figure 7 Miniature angle-beam probes Determination of beam angle 10EN ISO 7963:2010
48、(E) DIN EN ISO 7963:2010-12 9 Certificate For each block, a certificate shall be issued by the manufacturer stating: a) that the block complies with this International Standard (ISO 7963); b) the mean value of the measured longitudinal wave velocities, vi; c) the mean value of the measured transverse wave velocities, vt.11EN ISO 7963:2010 (E) DIN EN ISO 7963:2010-12 Annex A (normative) Calibration block characteristics and use A.1 Thickness of the block for c
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