1、1 a!ii INTERNATIONAL STANDARD 2377 :-I-: R 4!i!i INTERNATIONAL ORGANlZATlON FOA STANDARDlZATlON .MEJWHAPOHAR OPrAHM3AUMR no CTAHLIAPTM3AUMbl .ORGANISATION INTERNATIONALE DE NORMALISATION Magnesium alloy sand castings - Reference test bar First edition - 1972-03-15 UDC 669.721.5-141 : 620.113 Ref. No
2、. IS0 2377-1972 (E) Descriptors : castings, magnesium alloys, sand casting, test specimen. Price based on 1 page / Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FOREWOR
3、D IS0 (the International Organization for Standardization) is a worldwide federation of national standards institutes (IS0 Member Bodies). The work of developing International Standards is carried out through IS0 Technical Committees. Every Member Body interested in a subject for which a Technical C
4、ommittee has been set up has the right to be represented on that Committee. International organizations, governrnental and non-governmental, in liaison with ISO, also take part in the work. Draft International Standards adopted by the Technical Committees are circulated to the Member Bodies for appr
5、oval before their acceptance as International Standards by the IS0 Council. International Standard IS0 2377 was drawn up by Technical Committee ISOITC 79, Light metals and their alloys. It was approved in August 1971 by the Member Bodies of the following countries: Austria Norway Belgium Poland Cana
6、da Portugal Egypt, Arab Rep. of Romania India South Africa, Rep. of Israel Sweden Italy Switzerland Thailand Turkey United Kingdom U.S.A. U.S.S.R. The Member Bodies of the following countries expressed disapproval of the document on technical grounds: France Germany Japan 0 International Organizatio
7、n for Standardization, 1972 l Printed in Switzerland Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-INTERNATIONAL STANDARD IS0 2377-1972 (E) Magnesium alloy sand casting
8、s - Reference test bar 1 SCOPE AND FIELD OF APPLICATION This International Standard specifies the dimensions and method of production of reference test bars for magnesium alloy sand castings. 2 DIMENSIONS AND METHOD OF PRODUCTION 2.1 The Figure below shows the dimensions of a mould pattern which all
9、ows the casting of a set of four reference test bars. These test bars are intended, after separation of the risers and the gates, to be tested without being machined. 2.2 Alternatively, test barsof not less than 13 mm diameter which may be machined to not less than 11.3 mm diameter may be used for r
10、eference purposes. 2.3 Both of the types of test bar mentioned above shall be cast in groups of four entirely in sand moulds, without any form of additional chilling, Dimensions in millimetres (Inch values in parentheses) Skim gate : perforated screen, 82 X 82 (3; X 3$); holes, C$ 2; distance between centres, 3 (No. 6 perforations) FIGURE - Mould pattern for set of four reference test bars 1 Copyright International Organization for Standardization Provided by IHS under license with ISONot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
