BS EN 1371-2-1998 铸造 液体渗透检验 第2部分:熔模铸造法.pdf
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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1371-2:1998 The Eur
2、opean Standard EN 1371-2:1998 has the status of a British Standard ICS 77.040.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Founding Liquid penetrant inspection Part 2: Investment castings This British Standard, having been prepared under the direction of the Engineering
3、Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 November 1998 BSI 1998 ISBN 0 580 29983 X BS EN 1371-2:1998 Amendments issued since publication Amd. No.DateText affected National foreword This British Standard is the English language version
4、 of EN 1371-2:1998. The UK participation in its preparation was entrusted to Technical Committee ISE/NFE/9, Foundry technology, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for c
5、hange, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or
6、 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 Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the nec
7、essary 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 legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, p
8、ages 2 to 9 and a back cover. CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national
9、Members. Ref. No. EN 1371-2:1998 E EUROPEAN STANDARDEN 1371-2 NORME EUROPE ENNE EUROPA ISCHE NORM May 1998 ICS 77.140.80; 77.150.99 Descriptors: foundry engineering, castings, precision equipment, inspection, non destructive tests, liquid penetrant tests, surface properties, defects tolerances, acce
10、ptability English version Founding Liquid penetrant inspection Part2: Investment castings Fonderie Contro le par ressuage Partie 2: Pie ces en moulage de pre cision (cire perdue) Gieereiwesen Eindringpru fung Teil 2: Feingutu cke This European Standard was approved by CEN on 9 April 1998. CEN member
11、s 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 national standards may be obtained on application
12、 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 into its own language and notified to the Central Secretariat has the sam
13、e status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Page 2 EN 1371-2:1998 BS
14、I 1998 Foreword This European Standard has been prepared by Technical Committee CEN/TC 190, Foundry technology, the Secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the lates
15、t by November 1998, and conflicting national standards shall be withdrawn at the latest by November 1998. Within its programme of work, Technical Committee CEN/TC 190 requested CEN/TC 190/WG 4.20, Surface inspection, to prepare the following standard: EN 1371-2, Founding Liquid penetrant inspection
16、Part 2: Investment castings. This is one of two European Standards for liquid penetrant inspection of castings. The other standard is: EN 1371-1, Founding Liquid penetrant inspection Part 1: Sand, gravity die and low pressure die castings. According to the CEN/CENELEC Internal Regulations, the natio
17、nal standards organizations of the following countries are bound to implement this European standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Co
18、ntents Page Foreword2 Introduction3 1Scope3 2Normative references3 3Definitions3 3.1 investment casting3 3.2 reference area3 4Conditions for liquid penetrant inspection3 5Method of inspection4 5.1 Operating mode4 5.2 Qualification of the operators4 5.3 Suitability of the equipment4 5.4 Surface prepa
19、ration4 5.5 Penetrant testing sensitivity level4 5.6 Viewing conditions4 6Acceptance criteria4 6.1 Indications of discontinuities4 6.2 Definition of liquid penetrant inspection indication4 6.3 Severity levels5 7Interpretation of results5 8Ordering5 9Retesting5 10Post-examination cleaning procedures5
20、 11Test report5 Annex A (informative) Bibliography8 Annex B (informative) Type test report and test report8 ? Page 3 EN 1371-2:1998 BSI 1998 Introduction This European Standard complements EN 1371-1. It deals with the liquid penetrant inspection of investment castings. It has been written to take ac
21、count of the difference of dimension of the reference area, the difference in thickness of the casting and the difference of nature of discontinuities with regard to other casting processes. The structure of this standard is similar to EN 1371-1. 1 Scope This European Standard specifies the applicat
22、ion of liquid penetrant testing to all castings (except copper-tin and/or copper-tin-lead alloy castings, where copper is the major constituent) produced by investment casting for general purposes. This standard does not apply to aerospace investment castings (see prEN 2002-16). 2 Normative referenc
23、es 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 the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these
24、 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 473, Qualification and certification of NDT personnel General principles. EN 571-1, Non-destructive testing Penet
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