JIS-H-2116-2002-R2007-ENG.pdf
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1、J IS JAPANESE I N D U STR I AL STANDARD Translated and Published by Japanese Standards Association Tungsten powder and tungsten carbide powder ICs 77.120.99 Reference number : JIS H 2116 : 2002 (E) PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSA
2、Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:19:17 MDTNo reproduction or networking permitted without license from IHS -,-,- H 2116 : 2002 Foreword This translation has been made baseL on the origina Japanese Industrial Standard revised by the Minister of Econom
3、y, 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 type 1 and type 2 according to the chemical composition. 4 Quality 4.1 in quality and free from discolour
4、ation or intermixing of foreign matters. Appearance Tungsten powder and tungsten carbide powder shall be uniform 4.2 Chemical composition The chemical composition of tungsten powder and tung- sten carbide power shall be in accordance with 4.2.1 and 4.2.2. Furthermore, the marking method shall be met
5、hod A for indication of elements and method B for indication of non-volatile matter. 4.2.1 Chemical composition of tungsten powder The chemical composition of tungsten powder shall be in accordance with either table 1 or table 2. a) MethodA Table 1 Chemical composition of tungsten powder Notes (1) T
6、he purity (W) of tungsten shall be the remainder after subtracting the total contents in percentages of iron, molybdenum, calcium, silicon, alu- minum and magnesium from 100 % and two decimal places and lower shall be rounded down. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Prov
7、ided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:19:17 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 H 2116 : 2002 WC(4) % 99.8 min. 98.5 min. (2) The total contents of calcium, silicon, aluminium and m
8、agnesium shall be not more than 40 ppm for type 1 and not more than 400 ppm for type 2. Total carbon Free Combined Fe Mo Ca(5) Si(5) Al(5) Mg(5) carbon carbon % % % PPm PPm PPm PPm PPm PPm 6.13 (6) k 0.05 0.10 6.05 300 200 30 30 20 10 max.(6) min. max. max. max. max. max. max. 6.13 (6)+ 0.15 0.20 5.
9、95 3000 5000 750 750 500 250 max. min. max. max. max. max. max. max. b) Method B Table 2 Chemical composition of tungsten powder Note (3) The purity (W) of tungsten shall be the value after subtracting each calculated value of content in per- centages of iron, molybdenum and non-volatile mat- ter fr
10、om 100 % and two decimal places and lower shall be rounded down. 4.2.2 Chemical composition of tungsten carbide powder The chemical com- position of tungsten carbide powder shall be in accordance with either table 3 or table 4, a) Method A Table 3 Chemical composition of tungsten carbide power I I C
11、lassif- cation Type 2 Chemical composition Notes (4) The purity (WC) of tungsten carbide powder shall be the remainder after subtracting the contents in percentages of free carbon, iron, molybdenum, calcium, silicon, aluminium and magnesium from 100 % and two decimal places and lower shall be rounde
12、d down. ( 5 ) The total contents of calcium, silicon, aluminium and magnesium shall be not more than 80 ppm for type 1 and not more than 2 O00 ppm for type 2. (6) The medium of total carbon for type 1 may be vaned within the range 6.13 % or over up to and including 6.35 % upon the agreement between
13、the par- ties concerned with delivery. In such cases, the free carbon shall meet the following requiremen t. Free carbon (%) s (varied median) - 6.13 + 0.10 In the case mentioned above, the purity of tungsten carbide powder shall be not less than 99.5 %. PROTECTED BY COPMZIGHT Copyright Japanese Sta
14、ndards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:19:17 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 H 2116 : 2002 1.0 or over to and excl. 1.5 1.5 ox over to and excl. 2.0 b) Met
15、hodB 0.40 max. 0.30 max. Table 4 Chemical composition of tungsten carbide powder Note (7) The purity (WC) of tungsten carbide powder shall be the value after sub- tracting each calculated value of content in percentages of free carbon, iron, molybdenum and non-volatile matter from 100 % and two deci
16、mal places and lower shall be rounded down. Type 2 4.3 and the particle size of tungsten carbide powder shall be 0.5 pm to 12.0 ym. Particle size The particle size of tungsten powder shall be 0.5 pm to 16.0 ym, 0.5 or over to and excl. 1.0 1.0 or over up to and incl. 16.0 1.00 max. 0.50 max. 4.4 Oxy
17、gen content The oxygen content of tungsten powder shall conform to table 5 according to the type and particle size. Table 5 Oxygen content Classification Particle size Type 1 I 0.5 or over to and excl. 1.0 1 0.50 max. I I 2.0 or over up to and incl. 16.0 I 0.10 max. I 5 Sampling method The sampling
18、method and handling method shall be in ac- cordance with JIS H 1402. 6 Test method 6.1 Method for rounding-off of numeral values The method for rounding-off of numeral values shall be in accordance with JIS Z 8401. 6.2 Appearance test The appearance test shall be carried out visually. 6.3 with JIS H
19、 1402. Chemical analysis test The chemical analysis test shall be in accordance PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 08:19:17 MDTNo reproduction or network
20、ing permitted without license from IHS -,-,- 4 H 2116 : 2002 6.4 JIS H 1402. Oxygen content test The oxygen content test shall be in accordance with 6.5 shall be used and the details shall be in accordance with Annex (normative). a) Fischer method b) Blaine method Particle size test For the particle
21、 size test, either method of the following 7 Packaging Tungsten powder and tungsten carbide powder shall be hermetically packed in a container so that the quality should not be changed. 8 Marking Tungsten powder and tungsten carbide powder shall be marked on a container with the following items by a
22、 suitable means such as labels. a) Name or type of product Example : Tungsten powder Type 1 b) Particle size c) Mass d) Lot number e) Manufacturers name or abbreviation PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/111111
23、1001, User=Wing, Bernie Not for Resale, 03/14/2007 08:19:17 MDTNo reproduction or networking permitted without license from IHS -,-,- 5 H 2116 : 2002 Annex (normative) Particle size test 1 Scope This Annex specifies the details of particle size test. 2 Particle size test 2.1 accordance with either o
24、f the following. a) Fischer method b) Blaine method Classification of test method The test method for particle size shall be in 2.2 Fischer method 2.2.1 Summary The sample is filled in a sample tube, a fixed pressure of air is passed there through, the numeral value on calculator chart at water leve
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