JIS-C-9303-1993-R2003-ENG.pdf
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1、J IS JAPANESE I NDUSTRIAL STANDARD Translated and Published by Japanese Standards Association Stationary type single phase AC spot welding machines 1 ICs 25.160.30 Descriptors : spot welding, alternating current, single-phase current, stationary, Reference number : JIS C 9303 : 1993 (E) welding equi
2、pment, welding 7s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:45:31 MDTNo reproduction or networking permitted without license from IHS -,-,- C 9303 : 1993 Foreword This translation
3、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: I “ I Date of Establishment: 1956-12-01 Date of Revisio
4、n: 1993-03-01 Date of Public Notice in Official Gazette: 1993-03-23 Investigated by: Japanese Industrial Standards Committee Divisional Council on Electricity JIS C 9303 : 1993, First English edition published in 2000-02 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Mi
5、nato-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. b L 1 O JSA 2000 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
6、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=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:45:31 MDTNo reproduct
7、ion or networking permitted without license from IHS -,-,- 4 JAPANESE INDUSTRIAL STANDARD JIS C 9303 : 1993 (Reaffirmed: 1998) Stationary type single phase AC spot welding machines 1 Scope This Japanese Industrial Standard specifies stationary type spot welding machine, hereafter referred to as “wel
8、der” , composed mainly of a single phase trans- former of a frequency of 50 Hz or 60 Hz, electronic switch and a pneumatic electrode pressing device, and principally used for welding thin steel plates. Remarks : The normative references to this Standard are as follows. JIS C 9305 JIS C 9313 General
9、rule for resistance welding machines Control equipments of resistance welding machines of lap join t Thyristorstacks for resistance welding machine Carbon steel pipes for ordinary piping JIS C 9319 JIS G 3452 2 Definitions For the purpose of this Standard, the following definitions apply: duty cycle
10、 The ratio of on-load time to the total period when a constant load is intermitted, as expressed in percentage. rated capacity The on-load input power which complies with the specified tem- perature rise when a welder is loaded at the rated input voltage of rated frequency and a duty cycle of 50 % b
11、y adjusting the load, as expressed in kVA. maximum input voltage at no-load The maximum voltage which can be applied across input terminals of a welder. input voltage at maximum load A voltage across input terminals of a welder when the rated maximum welding current is passed. maximum secondary no-l
12、oad voltage A secondary open-circuit voltage when the rated input voltage is applied to the tap which can produce the maximum current of a welding transformer. maximum short-circuit current A current flowing through the secondary circuit when the maximum on-load input voltage of rated frequency is a
13、pplied to the tap which can produce the maximum current of a welding transformer while the upper and lower electrodes are short-circuited under the standard throat dimensions. maximum welding current A current equal to 90 % of the maximum short-circuit current. rated maximum welding current A nomina
14、l current stated in the nameplate cor- responding to 90 % of the maximum short-circuit current. rated marimum welding input power The apparent power at the input side when the rated maximum welding current is passed, as expressed in kVA. Copyright Japanese Standards Association Provided by IHS under
15、 license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 07:45:31 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS C 9303-ENGL I1993 E 4933608 0561015 490 Type Rated Standard throat Rated Rated Stroke of (informative) capacity
16、dimensions maximum welding electrode Allowable duty cycle Press type Rocker- (duty cycle Throat Hom force for rated maximum armtype 50%) depth spacing welding current mm mm (approximate kVA A kN mm value) % P1 R i 15 400 9 O00 2.9 40 8 P2 R2 25 600 12 O00 4.4 7 30 400 50 200 15 O00 5.9 6 35 600 50 4
17、00 18 O00 8 9 . 8 60 R6 75 22 O00 7 i 2 C 9303 : 1993 (10) allowable duty cycle at rated maximum welding current The allowable value of duty cycle in compliance with the specified temperature rise when the relay inter- rupts the rated maximum welding current under the rated voltage of rated fre- que
18、ncy, provided the period of interrupting the rated maximum welding current is 60 sec. (il) rated welding force A pressing force of electrodes which is guaranteed when com- pressed air of 490 kPa is used under the standard throat dimensions. (12) standard throat depth The distance between the center
19、line of electrode holders and the front face of a welder body. (13) horn spacing The distance between the upper arm mechanism and lower arm mechanism when movable parts thereof are set to their standard positions. The standard positions of upper and lower arms are such positions where the upper arm
20、is raised 15 mm above the lowest position of electrode stroke and the lower arm is so adjusted that the interval between the two arms is minimum. (14) stroke of electrode A vertical span in which the upper electrode of a welder can make up-and-down movements. (15) standard height of working place Th
21、e height from the floor to the center line of the horn spacing (standard value). 3 Table 1. Classification Welders are classified by the types and characteristics as given in Remarks 1 Symbols used for type designation mean the following: P : press type R : rocker-arm type I I 2 When there is no amb
22、iguity, type P1 and type R1 may be calied type 1, b and this can be extended to types 2 to 6. 4 Standard service conditions The standard service conditions shall comply with 3 of JIS C 9305. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111
23、001, User=Wing, Bernie Not for Resale, 03/13/2007 07:45:31 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 C 9303 : 1993 5 Coolingwater 5.1 Temperature of water The temperature of cooling water used for welders shall not exceed 30 “C at their inlet ports. 5.2 Quality of w
24、ater The electric resistivity of cooling water for thyristors used in the main circuit shall be not less than 5 OOOs1 -cm and the quality of water shall be similar to that of industrial water. This requirement does not apply, however, to the cooling water used for thyristor whose water cooler is ins
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