ISO-3315-1996.pdf
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1、INTERNATIONAL STANDARD IS0 3315 Third edition 1996-l 2-01 Assembly tools for screws and nuts - Driving parts for hand-operated square drive socket wrenches - Dimensions and tests Outils de mancwvre pour vis et 6crous - Pi b) the minimum Rockwell hardness value for their squares; c) the method of tor
2、que testing; d) the minimum torsional strength values; e) the method endurance of testing for ratchet handles; f) designation; g) marking. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At
3、 the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and I
4、S0 maintain registers of currently valid International Standards. IS0 1174-l :I 996, Assembly tools for screws and nuts - Driving squares - Part 1: Driving squares for hand socket tools. IS0 171 l-l :1996, Assembly tools for screws and nuts - Technical specifications - Part 1: /-/and-operated wrench
5、es and sockets. 3 Dimensions The overall dimensions are given in table 1. 1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 01:28:11 MDTNo reproduction or networking permitted wi
6、thout license from IHS -,-,- IS0 3315:1996(E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 01:28:11 MDTNo reproduction or networking permitted without license from IHS -,-,- I
7、S0 3315:1996(E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 01:28:11 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 3315:1996(E) 4 Driving squa
8、res Driving squares shall be in accordance with IS0 1174-1, and have a minimum hardness of 39 HRC 5 Torque testing 5.1 Method Place the tool in a female test square and apply the corresponding torque. Do not jerk or strike the tool when testing and apply the load gradually until the minimum testing
9、torque (see table I) is reached. The across-flats dimension of the female test square shall be equal to the minimum dimension of the corresponding female square (see IS0 1174-l) with a tolerance of H8; the female test square shall be hardened to not less than hardness 55 HRC. A device in which the f
10、emale test square can be rotated at a certain torque, determined with an accuracy of f 2,5 %, may also be used for this test. Following the application of the minimum test torsion torque, any possible damage or deformation shall not affect usability of the tool. 5.2 Special requirements 5.2.1 Test o
11、f tee handle square drive Draw out the handle completely at one end and apply the load to the end farthest from the test square. 5.2.2 Test of speed brace Apply the load in the middle of the part on which the operators hand normally rests. 5.2.3 Test of ratchet handle and reversible ratchet handle A
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