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1、 STD.JIS H Bb20-ENGL 1996 4933b 05b7398 b59 JIS JAPANESE INDUSTRIAL STANDARD Translated and Published by Japanese Standards Association Electroplated coatings of gold and gold alloy for engineering purposes ICs 25.220.40 Descriptors : gold, gold alloys, metal coatings, electroplating, industrial Ref
2、erence number : JIS H 8620 : 1998 (E) 10 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 04:29:30 MDTNo reproduction or networking permitted without license from IHS -,-,- H 8620 : 1998 F
3、oreword This trwslation has been made based on the original Japanese Industrial Standard revised by the Minister of International Trade and Industry through deliberations at the Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law. Consequently JI$ H 8620 : 1
4、993 is replaced with JIS H 8620 : 1998. Attention is drawn to the possibility that some parts of this Standard may conflict with a patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the public whic
5、h have technical properties. The relevant Minister and the Japanese Industrial Standards Committee are not responsible for identifying the patent right, application for a patent after opening to the public, utility model right or application for registration of utility model after opening to the pub
6、lic which have the said technical properties. Date of Establishment: 1985-03-01 Date of Revision: 1998-11-20 Date of Public Notice in Official Gazette: 1998-11-20 Investigated by: Japanese Industrial Standards Committee Divisional Council on Non-Ferrous Metals JIS H 8620: 1998, First English edition
7、 published in 2000-11 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-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 JSA2000 All rights reserved. Unless otherwise specified, no pa
8、rt of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan Copyright Japanese Standards Association Provided by IHS under license with JSALicensee
9、=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 04:29:30 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS H 8620-ENGL 1978 U 4933b08 05b7400 O37 W JAPANESE INDUSTRIAL STANDARD JIS H 8620 : 1998 Electroplated coatings of gold and gold alloy for
10、 engineering purposes Introduction This Japanese Industrial Standard has been prepared based on the first edition of IS0 4523 Metallic coatings-Electrodeposited gold and gold alloy coatings for engineering purposes issued in 1985, but items regarding the preparation of a test piece and marking which
11、 have not been specified in the corresponding International Standard are additionally specified in this Japanese Industrial Standard. Further, the real atmospheric condition at subclause 10.6 Corrosion resistance test is changed to the atmospheric condition in Japan (high temperature and high humidi
12、ty). 1 Scope This Japanese Industrial Standard specifies the electroplated coatings of gold and gold alloy of 0.2 pm or over in thickness of the significant surface (here- after referred to as “electroplated coatings”) conducted on metallic and nonmetallic basis materials for engineering purposes (1
13、). Note (1) The engineering purposes herein mean the functional applications in elec- trical, electronic, mechanical and other fields, each of which requires a particular performance of the product. Remarks 1 This Standard shall apply only to formed parts. 2 The International Standard corresponding
14、to this Standard is as fol- lows: IS0 4523 : 1985 Metallic coatings-Electrodeposited gold and gold alloy coatings for engineering purposes 2 Normative references The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. The most rec
15、ent editions of the standards indicated below shall be applied. JIS C 0050 JIS H 0400 JIS H 0404 JIS H 8501 JIS H 8502 JIS H 8503 JIS H 8504 JIS Z 2244 JIS Z 2251 JIS Z 3282 Basic environmental testing procedures Part 2 : Tests, Test T : Sol- dering Glossary of terms used in electroplating Graphical
16、 symbol for electroplated coating Methods of thickness test for metallic coatings Methods of corrosion resistance test for metallic coatings Methods of wear resistance test for metallic coatings Methods of adhesion test for metallic coatings Vickers hardness test-Test method Knoop hardness test-Test
17、 method Soft solders IS0 4524 : 1985 Metallic coatings-Test methods for electrodeposited gold and gold alloy coatings Part 1 : Determination of coating thickness Part 2 : Environmental tests Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111
18、001, User=Wing, Bernie Not for Resale, 03/15/2007 04:29:30 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS H 8620-ENGL 1448 4733608 0567403 T73 W 2 H 8620 : 1998 Part 3 : Electrographic tests for porosity Part 4 : Determination of gold content Part 5 :Adhesion tests
19、 Part 6 : Determination of the presence of residual salts 3 Definitions For the main terms used in this Standard, the definitions in JIS H 0400 apply, and the rest of the terms shall be as follows. significant surface A surface of a product coated or to be coated and for which the coating is essenti
20、al for its main performance and appearance. gold coating Electroplated coatings of 99.9 % or over in gold content, which is generally soft electroplated coatings. gold alloy coating Electroplated coatings of 58.5 % or over to and excluding 99.9 % in gold content. The hardness of the electroplated co
21、atings is generally higher than that of electroplated coatings of gold. double-layer gold or gold alloy coating A gold or gold alloy coating con- sisting of two discrete layers of differing gold content. multi-layer gold or gold alloy coating A gold or gold alloy coating consist- ing of more than tw
22、o discrete layers of differing gold content. Informative reference: The content of JI$ H 0400 is equivalent to that of IS0 2080 : 1981 Electroplating and related processes-Vo- cabulary. 4 Symbol For the symbol of electroplated coatings, the symbol E indicating engi- neering purposes shall be prefixe
23、d to the chemical element symbol Au of electro- plated coatings of gold with a hyphen u - n between them, and others shall be in accordance with JIS H 0404. 5 Quality 5.1 Appearance of electroplated coatings The appearance of electroplated coat- ings shall be tested in accordance with 1 0 . 2 , and
24、the significant surface of electro- plated coatings shall be free from failures of gloss, brightness, hue, etc., defects of electroplated coatings such as rough surface, burnt deposits, cracks, pits, develop- ment of dendrite at an edge part, elrposure of basis material or electroplated under- coati
25、ngs, etc., symptoms of inferiority in adhesion such as blister, peeling, and from stains, flaws, etc. Remarks 1 When the degree of appearance is specified, the appearance shall be as agreed upon between the purchaser and the supplier. 2 When it is unavoidable to provide a current contact on the sign
26、ifi- cant surface, its position shall be subjected to the agreement be- tween the purchaser and the supplier. 3 In the case of partial electroplated coatings, the degree of bleed- ing generated on the boundary between the electroplated surface and the nonelectroplated surface shall be as agreed upon
27、 between the purchaser and the supplier. 1 t Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 04:29:30 MDTNo reproduction or networking permitted without license from IHS -,-,- STD.JIS H 862
28、0-ENGL 1998 D 4933b08 0567402 0T D , 3 H 8620 : 1998 5.2 Thickness of electroplated coatings The thickness of electroplated coat- ings shall be specified as agreed upon between the supplier and the purchaser. The thickness test shall be conducted in accordance with 10.3, and the result shall con- fo
29、rm to the specified thickness of electroplated coatings at any position on the Sig- nificant surface. The classification of the minimum thickness of elec- troplated coatings which is generally used shall be as given in Informative reference Table 1. Informative reference : Informative reference Tabl
30、e 1 Classification of the minimum thickness of electroplated coatings unit: j.lm I Minimum thickness of electroplated coatings I 1 0.2, 0.5, 1 . 0 , 2.0, 3.0, 5.0, 1 0 . 0 I 5.3 Gold content of electroplated coatings When the gold content of electro- plated coatings (that of each layer in the case o
31、f multi-layer coatings) is specified, the electroplated coatings shall be tested in accordance with 10.4, and the results shall conform to the specified value. 5.4 Degree of porosity of electroplated coatings When the degree of porosity of electroplated coatings is specified, the electroplated coati
32、ngs shall be tested in accordance with 10.5, and the results shall conform to the specified value. 5.5 Corrosion resistance of electroplated coatings When the corrosion resis- tance of electroplated coatings is specified, the electroplated coatings shall be tested in accordance with 10.6, and the co
33、rrosion resistance shall conform to the specified value. 5.6 Adhesion of electroplated coatings The electroplated coatings shall be tested in accordance with 10.7, and shall be free from inferiority in adhesion such as peel- ing or blister, etc. and its symptom. Further, when the electroplated coati
34、ngs are free from peeling and the basis ma- terial is ruptured by crack in a bending test, it is not taken as inferiority in adhe- sion of electroplated coatings. 5.7 Solder wettings of electroplated coatings When the solder wetting of elec- troplated coatings is specified, the electroplated coating
35、s shall be tested in accor- dance with 1 0 . 8 , the dipped part shall be wetted uniformly, and the soldered surface shall be flat and free from any nodule. The quality of the electroplated coatings to be tested by other test methods shall be as agreed upon between the purchaser and the supplier. Re
36、marks : After the solder wetting test of electroplated coatings, the bending test of the adhesion test in 1 0 . 7 is carried out, and there shall be neither scaly scatterings nor peeling off of the soldered part. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee
37、=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 04:29:30 MDTNo reproduction or networking permitted without license from IHS -,-,- STD.JIS H 8620-ENGL 1998 - 4933608 0567403 646 - 4 H 8620 : 1998 5.8 Residual salts on the significant surface of electroplated coatings When sta
38、ins by electroplating solution component salt remaining on the significant sur- face of electroplated coatings come into question and it is specified that the amount of this residual salt is examined, the electroplated coatings shall be tested in accor- dance with 1 0 . 9 , and the amount of the res
39、idual salt shall conform to the specified value. 5 . 9 Electrical properties of electroplated coatings When the electrical prop- erties of electroplated coatings are specified, the electroplated coatings shall be tested in accordance with 1 0 . 1 0 , and the electrical properties shall conform to th
40、e specified values. 5 . 1 0 Hardness of electroplated coatings When the hardness of electroplated coatings is specified, the electroplated coatings shall be tested in accordance with 1 0 . 1 1 , and the hardness shall conform to the specified value. 5 . 1 1 Wear resistance of electroplated coatings
41、When the wear resistance of electroplated coating is specified, the electroplated coating shall be tested in accor- dance with 1 0 . 1 2 , and the wear resistance shall conform to the specified value. 5 . 1 2 Ductility of electroplated coatings When the ductility of electroplated coat- ings is speci
42、fied, the electroplated coatings shall be tested in accordance with 1 0 . 1 3 , and the ductility shall conform to the specified value. 6 Basis material Since the state of basis material before electroplating has a se- rious influence on the quality of electroplated coatings, especially when materia
43、ls for basis material are supplied from a purchaser, the purchaser shall state informa- tion concerning the materials on the specification sheet for processing or the like. 7 Electroplated undercoatings When electroplated undercoating is performed in order to improve the appearance, corrosion resist
44、ance, adhesion, etc. of electro- plated coatings, the kind and thickness of the electroplated coatings shall be as agreed upon between the purchaser and the supplier. Further, the kind and the minimum thickness of electroplated undercoats which have been stated as informative reference in the corres
45、ponding International Stan- dard are given in Annex 2 (informative). 8 Stress relief before electroplating of materials for iron and steel basis material When stress relief before electroplating of the materials for iron and steel basis material is specified, the stress relief is performed by heat t
46、reatment. Condi- tions for the heat treatment shall be as agreed upon between the purchaser and the supplier. Further, heat treatment conditions for stress relief before electroplating which have been stated as informative reference in the corresponding International Stan- dard are given in Annex 3
47、(informative). 9 Hydrogen embrittlement relief after electroplating of electroplated iron and steel basis material parts When execution of hydrogen embrittlement afker electroplating is specified for electroplated coatings on iron and steel basis material, hydrogen embrittlement relief shall be perf
48、ormed by heat treatment within 4 h after . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 04:29:30 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS H BbZO-
49、ENGL 1998 W 4933608 0567404 782 5 H 8620 : 1998 electroplating. Conditions for the heat treatment shall be as agreed upon between the purchaser and the supplier. Further, heat treatment conditions for hydrogen embrittlement relief after elec- troplating which have been stated as informative reference in the corresponding In- ternat