JIS-B-6901-1998-R2004-ENG.pdf
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1、J IS JAPANESE I NDUSTRIAL STANDARD Translated and Published by Japanese Standards Association Heat treatment furnaces of metals - Test methods of effective working zone and effective treating zone ICs 25.200 Descriptors : heating equipment, heat treatment, metalworking, thermal efficiency, testing R
2、eference number : JIS B 6901 : 1998 (E) PROTECTED BY COPYRIGHT I l s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/16/2007 00:11:49 MDTNo reproduction or networking permitted without license from
3、 IHS -,-,- R 6901 : 1998 Foreword 1 This translation has been made based on the original Japanese Industrial Standard revised by the Minister of International Trade and Industry through deliberations at Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law. Co
4、nsequently JIS B 6901:1987 is replaced with JIS B 6901:1998. In this revision, test method for effective working zone, holding temperature tolerances of heating equipment, etc. have been amended; and test method for effective treating zone of plasma heat treatment equipment, and holding temperature
5、tolerances and judging methods for effective working zone and effective treating zone of heating equipment are added. 2 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 o
6、r application for registration of utility model after opening to the 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
7、 right or application for registration of utility model after opening to the public which have the said technical properties. Date of Establishment: 1987-10-01 Date of Revision: 1998-03-20 Date of Public Notice in Official Gazette: 1998-03-20 Investigated by: Japanese Industrial Standards Committee
8、Divisional Council on Machine Elements JIS B 6901 :1998, First English edition published in 1998-08 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
9、 authority. O JSA 1998 All rights reserved. Unless otherwise specified, no part o f this publication may be reproduced or utilized in any orm or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan PROTECTED
10、BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/16/2007 00:11:49 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS B 6901 : 199
11、8 Heat treatment furnaces of metals-Test methods of effective working zone and effective treating zone 1 This Japanese Industrial Standard specifies the test methods for the effective working zone of the heat treatment furnaces of metals (hereafter referred to as “heat treatment furnaces”). As to th
12、e test methods for the effective treating zone of plasma heat treatment heating equipment, refer to the Annex 1. As to the holding temperature tolerances of heating equipment, refer to the Annex 2, and as to the judging methods on the effective working zone and effective treating zone, refer to the
13、Annex. 3. Scope 2 Normative references The following standards 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 B 6905 JIS C 1602 Thermocouples JIS C 1605 JIS C 1610 J
14、IS Z 8704 Heat treatment for metal products-Vocabulary Mineral insulated thermocouples Extension and compensating cables for thermocouples Temperature measurement-Electrical methods 3 the following definitions apply. Definitions For the purposes of this Standard, the definitions given in JIS B 6905
15、and materials to be processed The parts or materials to be subjected to processing. The parts mean the metallic products of mechanical parts, jigs, tools, moulds, etc. made of iron and steel and nonferrous metal. The materials mean the metallic material and semi- products by rolling, casting and for
16、ging. target temperature That temperature to be determined according to the types of heat treatment and material to be processed, as the heating target of the material to be processed. holding temperature When the material to be processed is to be heated, the temperature of the material to be proces
17、sed or either of heating atmosphere or hot bath, during a necessary duration is being maintained, often the target temperature has been attained. effective working zone of heating equipment That charging region in a heating equipment capable of holding the materials to be processed within a permissi
18、ble range of temperature. effective treating zone of plasma equipment In a heating equipment of plasma heat treatment, that charging region which has been established by the temperature measurement of similar shaped article in advance, in order to be capable of holding within a permissible range of
19、temperature required for the heating temperature,according to the purposes of the heat treatment, allowing the material to be processed to generate uniform discharge. PROTECTED BY COPYRIGHT Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/11111110
20、01, User=Wing, Bernie Not for Resale, 03/16/2007 00:11:49 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 B 6901:1998 f) g) no load test That test to carry out the temperature measurement of the effective working zone, without charging the material to be processed into th
21、e heating equipment. load test That test to carry out the temperature measurements of the effective working zone and effective treating zone, by charging the materials to be tested or those in lieu of these into the heating equipment. h) heating equipment In a heat treatment furnace of metals, that
22、equipment to heat the material to be processed, in order to carry out the heat treatment. 4 Grades of temperature measuring systems The grades of the temperature measuring systems shall be in accordance with Table 1, according to the classes of holding temperature tolerances specified in Annex 2. Ta
23、ble 1 Grades of temperature measuring systems Grade of temperature measuring system Class of holding temperature tolerances 1 I As agreed between the parties concerned I Grade A or grade B Grade A, grade B or grade C Remarks : The grades of temperature measuring systems using thermocouples shall be
24、Grade A : * 1 O C , Grade B : L 0.5 % of measuring range and Grade C : k 1 % to 1.5 % of measuring range in accordance with JIS Z 8704. 5 Temperature measuring equipments 5.1 Constitution The temperature measuring equipment shall be constituted of a thermocouple or a detector composed of this and co
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