1、October 2012 Translation by DIN-Sprachendienst.English price group 6No 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).ICS
2、 77.160!$“1919729www.din.deDDIN EN ISO 2739Sintered metal bushings Determination of radial crushing strength (ISO 2739:2012);English version EN ISO 2739:2012,English translation of DIN EN ISO 2739:2012-10Buchsen aus Sintermetall Bestimmung der radialen Bruchfestigkeit (ISO 2739:2012);Englische Fassu
3、ng EN ISO 2739:2012,Englische bersetzung von DIN EN ISO 2739:2012-10Bagues en mtal fritt Dtermination de la rsistance lcrasement radial (ISO 2739:2012);Version anglaise EN ISO 2739:2012,Traduction anglaise de DIN EN ISO 2739:2012-10SupersedesDIN EN ISO 2739:2010-08www.beuth.deIn case of doubt, the G
4、erman-language original shall be considered authoritative.Document comprises 9 pages09.12 DIN EN ISO 2739:2012-10 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 119 “Powder metallurgy” (Secretariat: SIS, Sweden) in collaborati
5、on with Technical Committee CEN/SS M11 “Powder metallurgy” (Secretariat: CCMC). The responsible German body involved in its preparation was the Normenausschuss Werkstofftechnologie (Technology of Materials Standards Committee), Working Committee NA 145-01-03 AA Probenahme und Prfverfahren fr Sinterm
6、etalle (ausgenommen Hartmetalle). Amendments This standard differs from DIN EN ISO 2739:2010-08 as follows: a) Clause 3 “Apparatus” has been revised; b) Clause 5 “Procedure” has been revised; c) in Table 1 “Precision data”, new materials C-T10G-K160 and F-08C2-340 have been included; d) Clause 8 “Te
7、st report” has been revised; e) the standard has been editorially revised. Previous editions DIN V 30911-2: 1986-06 DIN 30911-2: 1990-10 DIN ISO 2739: 1996-09 DIN EN ISO 2739: 2010-08 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2739 July 2012 ICS 77.160; 77.040.10 Supersedes EN ISO 2739
8、:2010English Version Sintered metal bushings - Determination of radial crushing strength (ISO 2739:2012) Bagues en mtal fritt - Dtermination de la rsistance lcrasement radial (ISO 2739:2012) Buchsen aus Sintermetall - Bestimmung der radialen Bruchfestigkeit (ISO 2739:2012) This European Standard was
9、 approved by CEN on 16 June 2012. 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 references concerning such natio
10、nal standards may be obtained on application to the CEN-CENELEC 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 langua
11、ge and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
12、Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and
13、by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2739:2012: EEUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Contents Page Foreword . 3 1 Scope . 4 2 Principle 4 3 Apparatus 4 4 Test piece 4 5 Procedure 5 6 Expression of r
14、esults . 6 7 Precision statement (Statement of accuracy) . 6 8 Test report . 6 2DIN EN ISO 2739:2012-10 EN ISO 2739:2012 (E) Foreword This document (EN ISO 2739:2012) has been prepared by Technical Committee ISO/TC 119 Powder metallurgy . This European Standard shall be given the status of a nationa
15、l standard, either by publication of an identical text or by endorsement, at the latest by January 2013, and conflicting national standards shall be withdrawn at the latest by January 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
16、rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 2739:2010. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European S
17、tandard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
18、 Spain, Sweden, Switzerland, the United Kingdom and Turkey. Endorsement notice The text of ISO 2739:2012 has been approved by CEN as a EN ISO 2739:2012 without any modification. “”3DIN EN ISO 2739:2012-10 EN ISO 2739:2012 (E) 1 Scope7KLV,QWHUQDWLRQDO6WDQGDUGVSHFLHVDPHWKRGRIPHDVXULQJWKHUDGLDOFUXVKLQJ
19、VWUHQJWKRIVLQWHUHGPHWDOSDUWVLQWKHIRUPRIKROORZFOLQGHUVFRPPRQONQRZQDVEXVKLQJV7KLVPHWKRGLVDSSOLFDEOHWRVLQWHUHGEXVKLQJVFRPSRVHGRISXUHRUDOORHGPHWDOSRZGHUV2 Principle$KROORZFOLQGHULVVXEPLWWHGWRDFRQWLQXRXVOLQFUHDVLQJUDGLDOORDGXQWLOEUHDNDJHRFFXUVSURYLGHGWKDWWKHGHIRUPDWLRQGRHVQRWHFHHGRIWKHGLDPHWHU7KHPDLPXPOR
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21、VKRXOGEHXVHG3.3 Loading platesWZRDWJURXQGKDUGHQHGVWHHOSODWHVRIVXIFLHQWVLHWRHQFRPSDVVWKHWHVWVSHFLPHQWKDWFDQEHIDVWHQHGWRWKHSUHVVSODWHQVDQGWKDWZLOOUHPDLQSDUDOOHO4 Test piece7KHWHVWSLHFH VHH)LJXUH VKDOOEHLQWKHIRUPRIDVLQWHUHGKROORZFOLQGHU ZKLFKPDRUPDQRWEHRLOLPSUHJQDWHG ZLWKRXWDQJHVQRWFKHVJURRYHVSURQRXQFH
22、GFKDPIHUVGULOOHGKROHVRLOZDVRUNHZDV,IQHFHVVDUWKHFOLQGHUPDEHPDFKLQHGEXWLQWKLVFDVHWKHUHVXOWVREWDLQHGPDGLIIHUIURPWKRVHREWDLQHGZLWKDFOLQGHUWKDWKDVQRWEHHQPDFKLQHGKeyL OHQJWKRIWKHKROORZFOLQGHUD HWHUQDOGLDPHWHURIWKHKROORZFOLQGHUe WKLFNQHVVRIWKHFOLQGHUZDOOFigure 1 Test piece4DIN EN ISO 2739:2012-10 EN ISO 27
23、39:2012 (E) 5 Procedure5.1 &OHDQDQVXUIDFHRLOIURPWKHVSHFLPHQDQGPHDVXUHWKHRXWVLGHGLDPHWHUWKHLQVLGHGLDPHWHUDQGWKHOHQJWKZLWKLQWROHUDQFH)RUWHVWVSHFLPHQVZLWKDQRXWVLGHGLDPHWHUPPWKHRXWVLGHGLDPHWHUPDEHPHDVXUHGWRWKHQHDUHVWPP)RUWHVWVSHFLPHQVZLWKDQLQVLGHGLDPHWHUPPWKHLQVLGHGLDPHWHUPDDOVREHPHDVXUHGWRWKHQHDUHVWPP)
24、RUWHVWVSHFLPHQVZLWKDOHQJWKUDQJLQJIURPt 2 mm to PPWKHOHQJWKPDEHPHDVXUHGWRWKHQHDUHVWPP)RUWHVWVSHFLPHQVZLWKDOHQJWKPPWKHOHQJWKPDEHPHDVXUHGWRWKHQHDUHVWPP5.2 :LSHWKHORDGLQJSODWHVFOHDQDQGODWKHWHVWVSHFLPHQLQWKHFHQWUDOUHJLRQRIWKHORZHUSODWHWKHDLVRIWKHWHVWVSHFLPHQEHLQJSDUDOOHOWRWKHSODQHVRIWKHSODWHV VHH)LJXUH 5
25、.3 %ULQJWKHXSSHUSODWHDQGWKHWHVWVSHFLPHQLQWRFRQWDFWDQGVORZODSSOWKHGLDPHWULFORDGDWDUDWH SODWHQVSHHG WKDWGRHVQRWHFHHGPPPLQ5.4 5HFRUGWKHORDGDWZKLFKWKHWHVWVSHFLPHQIUDFWXUHVRUWKHUVWUHDGLQJDWZKLFKWKHDSSOLHGORDGGURSV7KHPHDVXULQJYDOXHRIWKHORDGVKRXOGEHNHSWDWRIWKHWRWDOORDGKey DSSOLHGORDGFigure 2 Test arrangeme
26、nt5DIN EN ISO 2739:2012-10 EN ISO 2739:2012 (E) 6 Expression of results7KHUDGLDOFUXVKLQJVWUHQJWKRIWKHEXVKLQJKLQQHZWRQVSHUVTXDUHPLOOLPHWUHLVJLYHQEWKHIROORZLQJH TXDWLRQKFD eLe=()2whereF LVWKHPDLPXPORDGLQQHZWRQV 1 LQFXUULQJIUDFWXUHL LVWKHOHQJWKLQPLOOLPHWUHV PP RIWKHKROORZFOLQGHUD LVWKHHWHUQDOGLDPHWHULQ
27、PLOOLPHWUHV PP RIWKHKROORZFOLQGHUe LVWKHWKLFNQHVVLQPLOOLPHWUHV PP RIWKHFOLQGHUZDOO7KLVHTXDWLRQLVYDOLGRQOLIWKHUDWLReDLVOHVVWKDQ1).7 Precision statement (Statement of accuracy)2QWKHEDVLVRIWHVWHUURUDORQHWKHGLIIHUHQFHLQWKHDEVROXWHYDOXHRIWZRWHVWUHVXOWVREWDLQHGLQWKHVDPHODERUDWRUZLOOEHHSHFWHGWRHFHHGUHSHDWD
28、ELOLW r RQORIWKHWLPH,IVXFKDGLIIHUHQFHLVIRXQGWREHODUJHUWKDQrWKHUHLVUHDVRQWRTXHVWLRQRQHRUERWKUHVXOWV6LPLODUOWKHGLIIHUHQFHEHWZHHQWZRWHVWUHVXOWVREWDLQHGLQGLIIHUHQWODERUDWRULHVZLOOEHHSHFWHGWRHFHHGUHSURGXFLELOLW R RQORIWKHWLPH,IWKHGLIIHUHQFHLVIRXQGWREHODUJHU WKDQRWKHUHLVUHDVRQWRTXHVWLRQRQHRUERWKPHDVXUHPHQ
29、WVTable 1 Precision data9DOXHVLQPHJDSDVFDOVMaterial KrR&7*. &7*. 214 23)&. 400 34 )& )& 03D 1PP2127( :LWKSHUPLVVLRQWKLVFODXVHZDVWDNHQIURP03,)2)6WDQGDUGDetermination of radial crush strength (K) of powder metallurgy test specimens.8 Test report7KHWHVWUHSRUWVKDOOLQFOXGHWKHIROORZLQJLQIRUPDWLRQD DUHIHUH
30、QFHWRWKLV,QWHUQDWLRQDO6WDQGDUGE DOOGHWDLOVQHFHVVDUIRULGHQWLFDWLRQRIWKHVSHFLPHQF ZKHWKHUWKHVSHFLPHQLVDVVLQWHUHGRUVLHGG ZKHWKHUWKHVSHFLPHQKDVEHHQPDFKLQHGRUQRWDQGLIVRDGUDZLQJVKRZLQJKRZWKHVSHFLPHQKDVEHHQWDNHQIURPWKHSDUW1) ,QWKLVFDVHWKHWHQVLOHVWUHQJWKLVDSSURLPDWHOHTXDOWRK.2) 0HWDO3RZGHU,QGXVWULHV)HGHUDWLRQ86$6DIN EN ISO 2739:2012-10 EN ISO 2739:2012 (E) H ZKHWKHUWKHVSHFLPHQKDVEHHQRLOLPSUHJQDWHGRUQRWI WKHUHVXOWREWDLQHGUHSRUWHGWRWKHQHDUHVW03DJ DOORSHUDWLRQVQRWVSHFLHGLQWKLV,QWHUQDWLRQDO6WDQGDUGRUUHJDUGHGDVRSWLRQDOK GHWDLOVRIDQRFFXUUHQFHWKDWPDKDYHDIIHFWHGWKHUHVXOW,IQHFHVV
