BS-ISO-11901-1-2003.pdf
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1、BRITISH STANDARD BS ISO 11901-1:2003 Tools for pressing Gas springs Part 1: General specifications ICS 25.120.10 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:31:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 11901-1:2003 This British Standard was published under the authority of
2、 the Standards Policy and Strategy Committee on 22 December 2003 BSI 22 December 2003 ISBN 0 580 43119 3 National foreword This British Standard reproduces verbatim ISO 11901-1:2003 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Comm
3、ittee MTE/12, Tools for pressing and moulding, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be fou
4、nd in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are resp
5、onsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep
6、the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to v, a blank page, pages 1 to 11 and a back cover. The BSI copyright notice d
7、isplayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:31:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 11901-1:2003(E) INTERNATIONAL STANDARD ISO
8、11901-1 Second edition 2003-12-01 Tools for pressing Gas springs Part 1: General specifications Outillage de presse Ressorts gaz Partie 1: Spcifications gnrales BS ISO 119011:2003 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:31:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii BS ISO 119
9、011:2003 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:31:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii Contents Page Forewordiv Introduction v 1 Scope1 2 Normative references .1 3 Description and terminology .2 4 Interchangeability dimensions and characteristics 3 4.1 General nomina
10、l specifications.3 4.2 Gas springs of type 900 and 2 0003 4.3 Gas springs of type 1 500 and 2 500.3 4.4 Gas springs of type 5 000 to 7 5003 4.5 Gas springs of type 15 000 to 100 0003 5 Marking.9 6 Technical delivery conditions9 7 Designation10 Bibliography .11 BS ISO 119011:2003 Licensed Copy: sheff
11、ieldun sheffieldun, na, Sun Nov 26 08:31:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried ou
12、t through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO co
13、llaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International
14、Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the element
15、s of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 11901-1 was prepared by Technical Committee ISO/TC 29, Small tools, Subcommittee SC 8, Tools for pressing and moulding. This second edition cancels and replace
16、s the first edition (ISO 11901-1:1995), Clauses 4 and 5 of which have been technically revised. ISO 11901 consists of the following parts, under the general title Tools for pressing Gas springs: Part 1: General specifications Part 2: Specification of accessories BS ISO 119011:2003 Licensed Copy: she
17、ffieldun sheffieldun, na, Sun Nov 26 08:31:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI v Introduction The attention of the user of ISO 11901 is drawn to the fact that gas springs will have to conform to the national regulations of the user country. BS ISO 119011:2003 Licensed Copy: sheffieldun she
18、ffieldun, na, Sun Nov 26 08:31:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:31:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 1 Tools for pressing Gas springs Part 1: General specifications 1 Scope This part of ISO 11901 specifies the dimensi
19、ons, in millimetres, nominal initial forces and type of gas springs. It applies to gas springs of type 900 to 100 000, pressurized with nitrogen with a nominal initial force of between 900 N 5 % and 100 600 N 5 %, for use in press tools. It also specifies marking, technical delivery conditions and d
20、esignation. NOTE Specifications of mounting accessories for gas springs are given in ISO 11901-2. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest
21、 edition of the referenced document (including any amendments) applies. ISO 7-1, Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation ISO 2768-1, General tolerances Part 1: Tolerances for linear and angular dimensions without individual tole
22、rance indications BS ISO 119011:2003 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 08:31:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 3 Description and terminology See Figure 1. Key 1 rod 2 positive stop 3 valve a Pressure filling inlet. b Force. c Nitrogen. Figure 1 Terminology The gas
23、spring is an autonomous spring pressurized with nitrogen. At rest position, the rod is pushed out. This gas spring feature has a gas inlet for pressurization or depressurization. The inlet is located on the casing or on the bottom and is capped. For gas spring of type 1 500 and 2 500, the pressure f
24、illing inlet may be located at the end of the rod. In this case, the rod end is not spherical. The pressure filling inlet of gas springs of type of at least 2 500 includes a pipe thread ISO 7 - Rp 1/8 in accordance with ISO 7-1, and the pressure filling inlet of gas springs of type equal or less tha
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