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1、J IS JAPANESE I NDUSTRIAL STANDARD Translated and Published by Japanese Standards Association (JTMIA/ JSA) Tungsten wires for lighting and electronic equipments ICs 29.140.99; 31.220.99; 77.120.99 Reference number : JIS H 4461 : 2002 (E) PROTECTED BY COPYRIGHT 5s Copyright Japanese Standards Associa
2、tion Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:21:55 MDTNo reproduction or networking permitted without license from IHS -,-,- H 4461 : 2002 Foreword This translation has been made based on the original Japanese Industria
3、l Standard revised by the Minister of Economy, Trade and Industry through deliberations at the Japanese Industrial Standards Committee, as the result of proposal for revision of Japanese Industrial Standard submitted by the Japan Tungsten & Molybdenum Industries Association (JTMIA)/ the Japanese Sta
4、ndards Association (JSA) with the draft being attached, based on the provision of Article 12 Clause 1 of the Industrial Standard- ization Law applicable to the case of revision by the provision of Article 14. Consequently JIS H 4461 : 1989 is replaced with this Standard. In this revision, review in
5、all its aspects, addition of calculation method for purity of tungsten and the item of “terms and definitions”, description of diversified usage, and securing of conformity with the revision of JIS Ei 4460 were conducted. Date of Establishment: 1964-07-01 Date of Revision: 2002-03-20 Date of Public
6、Notice in Official Gazette: 2002-03-20 Investigated by: Japanese Industrial Standards Committee Standards Board Technical Committee on Non-Ferrous Metals JIS H 4461 : 2002, First English edition published in 2002-11 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-
7、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 JSA2002 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 mechanical,
8、including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:21:55 MDTN
9、o reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS H 4461 : 2002 Tungsten wires for lighting and electronic equipments 1 Scope This Japanese Industrial Standard specifies the tungsten wires (hereaf- ter referred to as wires”), used for filament, he
10、ater, grid, spring, anchor, support, discharge cut wire, heater for vacuum evaporation and the like of lighting and elec- tronic equipments. However, this Standard applies to wires and rods having a cir- cular cross-section only. 2 Normative references The following standards contain provisions whic
11、h, through reference in this Standard, constitute provisions of this Standard. The most recent editions (including amendments) of the standards indicated below shall be applied. JIS H 1403 Methods for chemical analysis of tungsten materials JIS H 4460 General rules for test of tungsten and molybdenu
12、m materials for light- ing and electronic equipments 3 Definitions follows. Definitions for principal terms used in this Standard shall be as classification between wires and rods Wires and rods are not classified by diameter. Those wound on a reel and the like and those bundled in a hoop state are
13、generally called wires. Those not wound are called rods. thickness The thickness of wires is represented by diameter (mm). However, the thickness of wires may be represented by MGP) as occasion demands. Note (1) MG is a numerical value representing in milligrams the mass of a wire of 200 mm in lengt
14、h. MG = 3 016 x 02 where, D : diameter of wire (mm) average value of thickness two or more positions to be represented by its arithmetic mean. tolerance on thickness The range of the average value of thickness allow- able for the same kind. Thickness of both ends of a wire is measured at difference
15、of thickness The difference between thicknesses at both ends of a wire, represented by the following formula. A - B x100 A+B T = 2 where, T : difference A : maximum or MG) B : minimum or MG) of thickness (%) thickness measured at both ends (mm thickness measured at both ends (mm PROTECTED BY COPYRIG
16、HT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:21:55 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 3 4461 : 2002 Division of finish As wire drawn Chemic
17、al treatment Electrolytic polishing Heat treatment f) circularity The difference between the long and the short diameters in a cross- sectional area of a wire, represented by the following formula. Symbol Application example VWWlD VWWlC VWWlE VWWlH Filament, heater, grid, discharge cut wire, heater
18、for vacuum evaporation and the like Di-Dz x100 Di + D, C = As wire drawn Chemical treatment Electrolytic polishing Heat treatment 2 VWW2D VWW2C VWWSE VWW2H Spring, anchor, support and the like where, C : circularity (%) DI : the maximum diameter measured in cross section mm) DZ : the minimum diamete
19、r measured in cross section (mm) 4 Classification and symbols of wires shall be as given in Table 1. The classification, division of finish and symbols Table 1 Classification, division of finish and symbols Classification Class 1 Class 2 Remarks 1 Wires requiring heat treatment shall be marked with
20、H at the end of its symbol. 2 Wires requiring straightness shall be marked with S at the end of its symbol. 3 When two or more finishes are carried out, letters at the end of the symbol may be suitably combined. Example : A wire of class 1 heat-treated after electrolytic polishing: VWWlEH 5 Quality
21、5.1 Appearance An appearance test shall be carried out in accordance with 7 . 1 and the results shall be free from defects such as a fissure, a crack, fine splits, kink, discoloration which are detrimental to use. 5.2 cordance with 7.2, and the chemical composition shall be as given in Table 2. Chem
22、ical composition A chemical analysis test shall be carried out in ac- PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:21:55 MDTNo reproduction or networking permit
23、ted without license from IHS -,-,- 3 H 4461 : 2002 Classification Class 1 Class 2 Table 2 Chemical composition Unit : % w (9 2 99.95 L 99.90 Class 1 and class 2 Note (2) For obtaining purity (W) of tungsten, sub- tract contents (percentage) of iron, molybde- num, calcium, silicon, aluminium and magn
24、esium from 100 and round down the third place of decimals. Otherwise, subtract a calculated value of each content (percent- age) of iron, molybdenum and nonvolatile content from 100 and round down the third place of decimals. 5.3 and a deformed amount shall be 5 12.0 mm for 0.39 mm in diameter. 5.4
25、sults shall be given in Table 3. Table 3 Tensile strength of wires Heating deformation Class 1 of wires shall be tested in accordance with 7.3, Tensile strength Wires shall be tested in accordance with 7.4, and the re- Diameter MG Tensile strength Tensile strength mm N/mm2 N/mm2 0.025 1.9 (3.00 to 4
26、.50) x los (1.70 to 3.60) X lo3 L 0.025 and 0.050 5 1.9 and 7.5 (2.40 to 4.00) x lo3 (1.50 to 3.40) X lo3 Classification I Thickness I D, C, E ofVWW1.2 I H ofVWW1.2 80 and 0.260 2 97.7 and 204 (1.90 to 3.40) x lo3 - I 2 0.050 and 0.070 1 B 7.5 and 14.8 I (2.30 to 3.80) x lo3 1 (1.10 to 3.00) x lo3 I
27、 z 0.070 and 0.130 I 2 14.8 and 51.0 I (2.10 to 3.60) x lo3 (1.10 to 3.00) x lo3 20.130 and 0.180 I z 51.0 and 97.7 I (1.90 to 3.40) x lo3 (1.10 to 3.00) X lo3 Remarks : Tensile strength of wires of thickness outside the specified ranges shall be as agreed upon between the purchaser and the supplier
28、. 5.5 defects such as the breaking of wires, a fissure, a crack, a fine split and the like. Winding strength Wires shall be tested in accordance with 7.5 and free from 5.6 Class 1 of wires shall be tested in accordance with 7.6, and shall be free from defects such as the breaking of wires, a fissure
29、, a crack, fine splits. Heating brittleness 5.7 7.7 and conform to the following specifications. Straightness Wires requiring straightness shall be tested in accordance with PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1
30、111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:21:55 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 H 4461 : 2002 a) For wires of 0.100 mm (MG30.16) in diameter, the natural hanging length of wires of 500 mm in length shall be 2450 mm. For wires of 2 0.100 mm
31、 in diameter, when the wires are cut to 200 mm, the height of arc to the chord length of 100 mm shall be 5 10 mm. b) 6 Dimensions and tolerances 6.1 in Table 4. Tolerance on thickness The tolerance on thickness of wires shall be as given Table 4 Tolerance on thickness Classifi- cation Class 1 i Clas
32、s 2 Thickness I Tolerance I % Diameter MG in mm in MG mm 0.013 0.51 i 2 i 4 2 0.013 and 0.018 L 0.51 and 0.98 t 1.5 i3 L 0.018 1 20.98 i.1 I 2 2 0.018 20.98 I +. 2.5 1 I 5 I 6.2 Difference of thickness The difference of thickness shall be as given in Table 5. Table 5 Difference of thickness Classifi
33、- cation Class 1 Class 2 Thickness Difference of thickness % Diameter MG mm in mm in MG 0.018 1 0.98 1 I1.5 s3 20.018 I 20.98 Sl s 2 when specially required s 1.5 when specially required 5 3 6.3 be 5 3 3 . Circularity The circularity of wires of 2 0.150 mm (MG67.86) in diameter shall 6.4 Length The
34、length of wires shall be as given in Table 6. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:21:55 MDTNo reproduction or networking permitted without license from
35、 IHS -,-,- 5 H 4461 : 2002 Thickness Diameter MG mm Length m 0.030 I 0.030 and 0.080 t 0.080 and 0.130 I 20.130 and 0.220 1 251.0 and 146 1 2 100 I 2.7 t 500 2 2.7 and 19.3 t 700 L 19.3 and 51.0 I 300 I 2 0.220 and 0.550 1 z 146 and 754 Length corresponding to t 75 g 1 Remarks 1 The length of wires
36、outside the specified range shall be as agreed upon between the purchaser and the supplier. 2 To those of which the lengths are specified by purchasers this table shall not apply. 7 Tests 7.1 4 (appearance test) of JIS H 4460. Appearance test An appearance test shall be carried out in accordance wit
37、h 7.2 cordance with JIS H 1403. Chemical analysis test A chemical analysis test shall be carried out in ac- 7.3 in accordance with 6 (heating deformation test) of JIS H 4460. Heating deformation test A heating deformation test shall be carried out 7.4 test) of JIS H 4460. Tensile test A tensile test
38、 shall be carried out in accordance with 8 (tensile 7.5 Winding test A winding test of wires of 0.150 mm (MG67.86) in diameter shall be carried out in accordance with any one of the method for winding at ordi- nary temperature, the edge drawing method and the edge winding method which are specified
39、in 12 (winding test) of JIS H 4460. 7.6 accordance with 13 (heating brittleness test) of JIS H 4460. Heating brittleness test A heating brittleness test shall be carried out in 7.7 Straightness test A straightness test shall be as follows. a) Wires of 0.100 mm (MG30.16) in diameter shall be tested i
40、n accordance with the suspension method specified in 15 (straightness test) of JIS H 4460. Wires of 20.100 mm (MG30.16) in diameter shall be tested in accordance with the circulation code method specified in 15 of JIS H 4460. b) 8 Packaging Wires shall be packaged by a suitable method so as not to r
41、eceive damage and humidity. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:21:55 MDTNo reproduction or networking permitted without license from IHS -,-,- 6. H 44
42、61 : 2002 9 Marking Wires shall be marked with the following particulars for each bundle, winding or packaging. a) b) Thickness Article name, classification and finishing division or their symbols c) Length or mass d) Lot number e) Manufacturing date f) Manufacturers name or abbreviation PROTECTED B
43、Y COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:21:55 MDTNo reproduction or networking permitted without license from IHS -,-,- Errata for J i S (English edition) are printed
44、 in Stadrdization Jouml, published monthly by the Japanese Standards Association, and also provided to subscribers of lis (English edition) in Monthly Information. Errata will be provided upon request, please contact: Standardization Promotion Department, Japanese Standards Association 4-1-24, Aicas
45、aka, Minato-ku, Tokyo, 107-8440 JUAN TEL. 03-3583-8002 FAX. 03-3583-0462 100% Recycled paper PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/11/2007 07:21:55 MDTNo reproduction or networking permitted without license from IHS -,-,-