《JIS-R-3453-2001-ENG.pdf》由会员分享，可在线阅读，更多相关《JIS-R-3453-2001-ENG.pdf（16页珍藏版）》请在三一文库上搜索。
1、Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:30:49 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Japanese Standards Association Provided by IHS u
2、nder license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:30:49 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, Us
3、er=Wing, Bernie Not for Resale, 03/14/2007 20:30:49 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:30:49 MDTNo
4、reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD Translated and Published by Japanese Standards Association Compressed fi ber jointing ICs 73.080 Descriptors : sheet materials, joints, gaskets, pipework systems Reference number : JIS R 3453 : 2001 (E)
5、PROTECTED BY COPYRIGHT 7s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:30:49 MDTNo reproduction or networking permitted without license from IHS -,-,- R 3453 : 2001 Foreword This tran
6、slation has been made based on the original Japanese Industrial Standard established by the Minister of Economy, Trade and Industry through deliberations at the Japanese Industrial Standards Committee. Consequently, JIS R 3453:1995 is replaced with this Standard. In this revision, the contents of st
7、andard is revised to the specifications which centre around performance. 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
8、 after opening to public which 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 m
9、odel after opening to the public which have the said technical properties. Date of Establishment: 1954-07-20 Date of Revision: 2001-01-20 Date of Public Notice in Official Gazette: 2001-01-22 Investigated by: Japanese Industrial Standards Committee Divisional Council on Ceramics JIS R 3453 :2001, Fi
10、rst English edition published in 2005-04 Translated and published by: Japanese Standards Association 4-1-24, Akacaka, 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. 0 JSA 2005 All rights reserved. No part of this
11、 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 NH /HE PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under lice
12、nse with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:30:49 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS R 3453 : 2001 Type Compressed fiber jointing Service tem- Working pressure (l) MPa perature
13、“C Case of air Case of steam Case of water and oil 1 Scope This Japanese Industrial Standard specifies compressed fiber jointing. The compressed fiber jointing is used as the gasket for pipes or machineries to convey water, oil, air, steam and the like. It is made in the form of a sheet by mixing fi
14、ber, rubber, vulcanizing agent and various fillers and by heat-compressing densely and uniformly. 2 Normative references The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. The most recent editions (including the amendments) o
15、f the standards indicated below shall be applied. JIS B 0601 Surface roughness - Definitions and designation JIS B 7502 Micrometer callipers JIS B 7503 Dial gauges JIS K 6251 Tensile testing methods for vulcanized rubber JIS K 6258 Testing methods of the effect of liquids for vulcanized rubber 3 by
16、service temperature and working pressure as shown in table 1. Classification The compressed fiber jointing shall be classified into two types Table 1 Classification I l Type A l 120 max. 1 Type B 220 max. 0.50 max. 1.00 max. 0.20 max. 1.60 max. 1.00 max. 1.60 max. Note ( Working pressure indicates g
17、auge pressure. Remarks : The values in the table are the rough standard when the tightening condition of gasket specified by manufactures is met, and they are not to assure every case. 4 Quality The compressed fiber jointing shall be free from crack, fissure, unevenness, etc. detrimental to use, and
18、 shall comply with the specifications in table 2 when tested according to clause 6. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:30:49 MDTNo reproduction or net
19、working permitted without license from IHS -,-,- 2 R 3453 : 2001 Tensile strength MPa Compressibility ratio % Table 2 Quality TYP A Type B 9.8 min. 15.7 min. 5 to 19 7 to 17 Characteristics Oil resistance I Classification Thickness increase ratio % 30 max. 30 max. Tensile strength decrease ratio % 4
20、0 max. 40 max. Steaming test I Recovery ratio % I 35 min. I 45 min. I Tensile strength decrease ratio % 50 max. - (vapour pressure 1.57 MPa) Tensile strength decrease ratio % - 50 max. (vapour pressure 4.90 MPa) Stress relaxation ratio % Ignition loss % I Flexibility 50 max. 40 max. - 28 max. I Not
21、broken I Not broken I 5 thickness, width and length (3). Dimensions The dimensions of compressed fiber jointing shall be expressed by Notes (z) The width means the length of right-angled direction to fiber. (3) The length means the length of parallel direction to fiber. 6 Test 6.1 General condition
22、of test 6.1.1 Sample The sample shall be cut off to have a width of 150 mm from the end of compressed fiber jointing with 1.5 mm k 0.1 mm thickness. 6.1.2 Standard condition of sample The sample in standard condition shall be made by putting in Geer type aging tester maintained at 100 “C k 2 “C or a
23、 thermostat equivalent to this, holding for 60 min, then taking out and cooling in a desiccator to room temperature as it is. All the test shall be carried out on the samples in standard condition. temperature and the test humidity shall be recorded for reference. Moreover, the standard condition of
24、 test place shall be 25 “C f 5C in test 6.1.3 Rounding method of test results values according to test results shall be in accordance with table 3. The rounding method of numerical PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Empl
25、oyees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:30:49 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 R 3453 : 2001 Tensile strength MPa Table 3 Rounding method of numerical values It shall be obtained to two decimal places. one decimal place. It shall b
26、e rounded off to I Characteristics I Calculated value I Mean value to be obtained Compressibility ratio Recovery ratio It shall be obtained to one decimal place. I oil resistance 4 I Steaming test % I I Stress relaxation ratio % I I Ignition loss 4 It shall be rounded off to an integer. 6.2 Test met
27、hod 6.2.1 Thickness For the measurement of thickness for the tests of tensile strength and oil resistance, an external micrometer specified in JIS B 7502 or a thickness gauge shall be used. The thickness gauge shall have a dial gauge of 0.01 mm in scale interval specified in JIS B 7503, and the surf
28、ace of pressor foot at the tip of spindle of dial gauge shall be flat and circular with 6.40 mm rt 0.25 mm in diameter. In addition, the pressure load shall be 2.50 N rt 0.03 N, the size of anvil be circular with 6.40 mm or over and the surfaces of anvil and pressor foot shall be parallel. However,
29、the thickness for tensile strength shall be measured to 0.01 mm at three places under the condition so as not to place on the edge excluding the grip portion of test piece, and the lowest value shall be taken. The thickness for increase rate of thickness shall be measured to 0.01 mm at one place in
30、nearly central part of test piece. 6.2.2 Tensile strength test The tensile strength test shall be carried out according to JIS K 6251. Three samples shall be taken in right-angled direction to fiber and punched in the shape of dumbbell type No. 1. The tensile speed shall be 300 mdmin f 25 mdmin. Ten
31、sile strength shall be expressed by the mean value of three test pieces. 6.2.3 Compressibility ratio and recovery ratio The compressibility ratio and recovery ratio shall be obtained according to the following. a) b) The test piece shall be circular or square with 25 mm or over in diameter or one si
32、de. The apparatus used for the measurement of compressibility ratio and recovery ratio shall be provided with the capability as shown in the following. 1) Anvil It shall be 32 mm or over in diameter and the surface shall be 2) Penetrator It shall be a round bar of which the edge is quenched and quen
33、ched and polished. polished, and 6.400 mm f 0.025 mm in diameter. 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 20:30:49 MDTNo reproduction or networking permitted
34、without license from IHS -,-,- 4 R 3453 : 2001 3) Thickness measuring device It shall indicate the thickness of test piece when measured, and a dial gauge of 0.01 mm scale interval specified in JIS B 7503 shall be used. It shall be 0.686 MPa I 1 % including the own weight of the penetrator. Total pr
35、essure It shall be 34.3 MPa I 1 % including preload. In such a case, for pressurizing method, an optional method may be used. 4) Preload 5) c) For measurement, place the test piece between the anvil and the penetrator so as to fit the centre, apply preload for 15 s and read the thickness to 0.01 mm.
36、 Then, add in uniform speed to reach the total pressure within 10 s. Hold it for 60 s as it is, then read the thickness to 0.01 mm. Next, immediately put back to the preload, read the thickness to I 0.01 mm after 60 s, calculate the compressibility ratio and recovery ratio by the following formulae
37、and express by the mean value of three test pieces. x 100 ti - t z ti E = x 100 t 3 - t z tl - t z F = where, E : compressibility ratio (%) F : recovery ratio (%) ti : thickness after adding preload for 15 s (mm) ta : thickness after adding total pressure for 60 s (mm) t 3 : thickness after 60 s fro
38、m coming back to preload Imm) 6.2.4 Oil resistance test The oil resistance test shall be carried out as follows. a) Increase rate of thickness Take three test pieces of 25 mm x 50 mm from compressed fiber jointing and measure the thickness at the central part of each test piece. Add lubricating oil
39、No. 3 specified in JIS K 6258 in the test container containing test pieces until the test pieces sink completely and hold it in a bath adjusted at 150 “C I 2 “C for 5 h. After holding for 5 h, take out the test pieces and cool them in lubricating oil No. 3 at ordinary temperature for 30 min to 60 mi
40、n. After cooling, wipe off excess oil, immerse them in ethyl alcohol, acetone or petroleum benzine, take them out quickly, wipe it off lightly with filter paper, and then measure the thickness at the same places as before immersion. Calculate the increase rate of thickness according to the following
41、 formula and express by the mean value of three test pieces. x 100 t 5 - t 4 t 4 G = where, G : increase rate of thickness (%) t4 : thickness before immersion (mm) t 5 : thickness after immersion (mm) PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with
42、JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/14/2007 20:30:49 MDTNo reproduction or networking permitted without license from IHS -,-,- 5 R 3453 : 2001 b) Decrease rate of tensile strength Take three test pieces by the same method as that in 6.2.2, immerse them in oil b
43、y the method as that in a) and perform the test according to 6.2.2. When the tensile strength is calculated, the cross- sectional area of the test piece shall be the value before immersion and the value of tensile strength used herein shall be obtained to two decimal places. Calculate the decrease r
44、ate of tensile strength according to the following formula and express by the mean value of three test pieces. x 100 01 - 0 2 u 1 H = where, H : decrease rate of tensile strength (%) ol : tensile strength before immersion obtained according 0 2 : tensile strength after immersion (MPa) to 6.2.2 (MPa)
45、 6.2.5 Flexibility test Take three test pieces of 25 mm x 150 mm from compressed fiber jointing in parallel direction to fiber. Bend respective test pieces at 180“ in angle in longitudinal direction of test piece along the iron rod of diameter 12 times the thickness of the test piece (18 mm) and con
46、firm the existence of fissure (4). Note (*) Fissures which reach inside so as to be clearly visible to the naked eye. The surface cracks appearing slightly on the surface shall not be included. 6.2.6 Steaming test Take three test pieces according to the same method as that in 6.2.2, put them in an a
47、utoclave so as not to be immersed in water and heat them (see figure 1). After venting air, generate the saturated steam of 1.57 MPa in pressure for Type A or 4.90 MPa for Type B inside. For the venting of air in the autoclave, open the valve for air-venting under the condition at 0.05 MPa in gauge
48、pressure and when the generation of air bubble stops, close the valve. Raise the pressure in the autoclave to 1.57 MPa in saturated steam pressure for Type A or 4.90 MPa for Type B within 90 min f 10 min, hold it under this condition for 60 min, and then cool it gradually. When the gauge pressure comes back to zero, take out the test pieces, dry them in a desiccator containing silica gel and the like for 15 h or longer, and then measure the tensile str