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1、 STDmJIS H 0522-ENGL 1977 m 4733606 05b5024 Ob2 m J IS JAPANESE I N DU STR I AL STANDARD Translated and Published by Japanese Standards Association Methods for radiographic test and classification by radiographs of aluminium castings ICs 77.040.20; 77.150.10 Descriptors : radiographic testing, non-d
2、estructive testing, radiography, aluminium, Reference number : JIS H 0522 : 1999 (E) non-ferrous metals, casting, defects, defect counting, classification systems 8s H 0522 : 1999 Foreword This translation has been made based on the original Japanese Industrial Standard revised by the Minister of In
3、ternational Trade and Industry through deliberations at the Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law. Consequently JIS H 0522 : 1969 is replaced with JIS H 0522 : 1999. In this revision, this Standard has been conformed to the corresponding Intern
4、ational Standard IS0 9915 : 1992, Aluminium alloy castings- Radiography testing and the relating International Standard IS0 5579 : 1985, Non-destructive testing-Radiographic examination of metallic materials by X- and gamma rays-Basic rules. Date of Establishment: 1969-02-01 Date of Revision: 1999-0
5、8-20 Date of Public Notice in Official Gazette: 1999-08-20 Investigated by: Japanese Industrial Standards Committee Divisional Council on Non-Ferrous Metals JIS H 0522 : 1999, First English edition published in 2000-08 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Mina
6、to-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority. O JSA 2000 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanic
7、al, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan -,-,- STD-JIS H 0522-ENGL 3999 W 4933608 0565026 935 JAPANESE INDUSTRIAL STANDARD JIS H 0522 : 1999 Methods for radiographic test and classification by radiographs of aluminium castings , Int
8、roduction This Japanese Industrial Standard has been prepared based on IS0 9915, Aluminium alloy castings-Radiography testing published in 1992, as the first edition, without changing the technical contents as to the corresponding parts. 1 Scope This Standard specifies the testing methods by the X-r
9、ay or y-ray radio- graphs and the method of grade classification of radiographs of aluminium castings. Remarks : The International Standard corresponding to this Standard is given as follows: IS0 9915 : 1992 Aluminium alloy castings-Radiography testing 2 Normative references The following standards
10、contain provisions which, through reference in this Standard, constitute provisions of this Standard. The most recent editions of the standards indicated below shall be applied. JIS Z 2306 ASTM E 155 Standard reference radiographs for inspection of aluminium and magnesium castings Radiographic image
11、 quality indicators for non-destructive testing 3 General items The general items shall be in accordance with the following. a) The radiographic test is to classify the grades, by irradiating the aluminium castings with X-ray or y-ray to detect the defects on the photographed radio- graphs. The radi
12、ographic test shall usually be carried out by the direct radiographic photography. The technicians who perform the radiographic tests shall have knowledge re- lating to aluminium castings, and shall have sufficient techniques and experi- ences in respect to the radiographic testing method including
13、radiation equipment, shielding of radiation and photographic treatment and the method of grade clas- sification of radiographs. b) c) d) As to the photographic range of the aluminium castings to be tested and the allowance of defects and the like should preferably be determined separately, examinati
14、ng the uses, designs and specifications thereof, upon the agreement . between the parties concerned with acceptance in advance. 4 4 Photographing method of radiographs 4.1 Performance of testing instruments The radiation equipment, sensitive ma- terials, photographing instrument and observing instru
15、ment shall be capable of pho- tographing the radiographs presenting the defects on the inspected parts of the aluminium castings (hereafter referred to as “inspection parts”) clearly, and shall be capable of observing those. * -,-,- 2 H 0522 : 1999 4.2 Irradiating arrangement of radiation 4.2.1 Phot
16、ographing arrangement of test body The irradiating directions of the X-ray and pray to the test body shall be decided depending on the size, shape and the conditions of test body relating to the photographing arrangement of the test body and be photographed under whichever arrangement given in Figs.
17、 1 to 7. However, the double-wall photographing method given in Fig. 6 and Fig. 7 shall be applied only in the case where the single wall photographing is technically unable to carry out. 4.2.2 Central axis of radiation The radiation source shall be so arranged that the central axis of radiation inc
18、ises vertically to the central part of the test face in the photographing region. Further, in the case where it is evident that the defect is detected far more clearly at a particular irradiation angle, the above specification shall not apply. However, if photographs are taken in such an arrangement
19、 where the irradiation angle is not at right to the test face, it shall be noted in the test report. 4.3 Surface conditions of test body The unevenness of the test body surface impedimental to the evaluation of the radiographs should preferably be removed before photographing. 4.4 Wall thickness of
20、test body In the case where the wall thickness of the test body changes abruptly in a narrow range, it is preferable to take photographs by the method different from the usual photographing, so that the widest possible range of the inspected part is within the range of effective film density. 4.5 Ra
21、diation source As for the radiation energy, as a rule, the lowest energy conforming to the radiation time shall be used. 4.6 Films and intensifying screens 4.6.1 Films The films to be used shall be the noncombustible films which can achieve high contrast with the fine particles or ultra fine particl
22、es. 4.6.2 Intensifying screens In order to intensify the sensitivity and discernible degree, the metallic intensifying screen or filter of lead or lead oxide and the like may be used. The thickness of the intensifying screens to be used shall be within the range of 0.02 mm to 0.25 mm. The intensi. S
23、hrinkage grade 2 Gas porosity grade 2 c) Case of four or more of defects (defects of the same type or defects of different types) are present In the case where the defects of four types or more or four or more defects are present in the unit area, the radiographic test shall be judged unacceptable.
24、8 Test report The judgement results and radiographs of the radiographic test shall be recorded and stored as the inspection record. In addition, it shall be sub- mitted as required by the orderer. 8.1 Inspection records The inspection records shall be in accordance with the following contents. Name
25、of manufacturer Name of product Types, qualities or symbols thereof of alloys Products, films and symbols combined with inspection results Photographing equipment Names of films Developing conditions 1) Name of developing machine 2) Developing temperature 3) Developing time Photographing conditions
26、1) Photographing wall thickness 2) Tube voltage -,-,- STD-JIS H USZZ-ENGL 1999 M 4933608 0565037 710 = 12. H 0522 : 1999 3) Electric current 4) Time of exposure 5) 6) Use of sensitizing papers 7) Name of photographer Name of judge Results of judgement Records of grade classification Remarks Distance
27、 between X-ray focus and film Related standard: IS0 5579 : 1985 Non-destructive testing-Radiographic examination of metallic materials by X-and gamma rays-Basic rules -,-,- STD-JIS H 0522-ENGL 1999 4933b08 05b5038 b57 Errata for JS (English edition) are printed in Srundurdizution Journal, published
28、monthly by the Japanese Standards Association, and also provided to subscribers of JIS (English edition) in Monthly Information. Errata will be provided upon request, please contact: Standardization Promotion Department, Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN TEL. 03-3583-8002 FAX. 03-3583-0462 -,-,-