EN 1045-1997 en Brazing - Fluxes for Brazing - Classification and Technical Delivery Conditions《硬焊 硬焊用熔剂 分类和交货技术条件》.pdf

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1、STD-BSI BS EN 1045-ENGL 1977 Lb2ibbS Ob37089 825 = BS EN 1045 : 1997 Brazing - Fluxes for brazing - Classification and technical delivery conditions The European Standard EN 1045 : 1997 has the status of a British Standard ICs 25.160.50 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRI

2、GHT LAW STD-BSI BS EN LO45-ENGL 1997 M Lb2ibbS Ob37090 5Y7 = direction of the Sector Board for Amd. No. Date Engineering, was published under the authority of the Standards Board and comes into effect on 15 September 1997 BS EN 1045 : 1997 Text affected National foreword This British Standard is the

3、 English language version of EN 1045 : 1997. The K participation in its preparation was entrusted to Technical Committee WEW19, Brazing and braze welding, which has the responsibility to: - aid enquirers to understand the text, - present to the responsible European committee any enquiries on the int

4、erpretation, or proposals for change, and keep the UK interests informed, - monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards

5、 which implement intrnational or European publications referred to in this document may be found in the BSI st+uidards Cahlogue under the section entided International Standards Correspondence Index, or by using the Find faciiity of the BSI Standards Electronic Catalogue. Compliance with a British S

6、tandard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a hnt cover, an inside front cover, the EN title page, pages 2 to 4, an inside back cover and a back cover. O BSI 1997 ISBN O 680 28353 4 STD-BSI BS EN 1Li5-ENGL 1997 lb24bb9 b39091 483 D EURO

7、PEAN STANDARD NORIME EUROPENNE EXJROP NOM EN 1045 June 1997 ICs 25.160.50 Descriptors: Welding, brazing-and soldering, brazing, soldering fluxes, classifications, designations, delivery English version Brazing - Fluxes for brazing - Clasifidon and technical delivery conditions Bmsage fort - Flux pou

8、r le brasage fort - Classidon et conditions thniques de livraison Hartlten- Flul3mittel zum Hartlten - Einteilung und technische Liefe- en This European Standard was approved by CEN on 1997-07-01. CEN members are bound in comply with the CENKENELEC Intmai Regulations which stipuiate the conditions f

9、or giving this European Standard the status of a national stfuidard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three offici

10、al versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notitied to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of AustSia, Be

11、lgium, Czech Republic, Denmark, Finiand, France, Germany, Greece, Iceland, Ireland, Itrom 550 “C upwards. 2.3.2 mpe FLlO These fluxes contain hygroscopic chlorides and fluorides, primarily lithium compounds. The residues are corrosive and have to be removed by washing or pickling. 2.3.3 mpe FL20 The

12、se fluxes contain non-hygroscopic fluorides. The residues are generally noncorrosive and can be left on the work piece, but the joint has to be protected against water or humidiw. 3 Designation Fluxes supplied in accordance with this standard shaU always be designated by the number of this standard

13、and the flux code detailed in clause 2. NOTE. However, for each flux code there are fluxes available commercially which behave significantly differently, e.g. in fluidity, resistance ta overheating and outgassing. Therefore, in certain cases, it may be necessary to specify a flux by the trade name a

14、s well as the code details in clause 2. Example: Designation of a flux of class F“, type FH 20 in accordance with EN 1045: Flux EN 1045 - FH 20. O BSI 1997 Page 4 EN 1045 : 1997 4 ! b) the We name; c) the designation in accordance with clause 3; d) the batch number; e) any hazard warning required by

15、 national or EU regulations. 5 Health and safety precautions When working with fluxes, the foliowing points shall be noted: - contact with the skin, particularly if broken, shall be avoided; - the workshop, or place where the work is carried out, should be adequately ventilated Attention is drawn to

16、 the need to comply with any appropriate national legislation covering the transportation, storage, use and disposal of fluxes. O BSI 1997 STD-BSI BS EN L045-ENGL 1997 = Lb2Llbb9 Ob37U75 U27 BS EN 1045 : 1997 BSI 389 Chiswick High Road London w4 4AL BSI - British Standards Institution BSI is the ind

17、ependent national body responsible for preparing British standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Contract requirements A British Standard does not purport to include all the necessary provisions of a contract. Use

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25、otherwise - without prior written permission hm BSI. This does not preclude the free use, in the com of implementing the standard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained nom the Copynght Manager, BSI, 389 Chiswick High Road, London W4 4AL.