1、Aerospace series - Metallic materials, Filler metal for brazing - Technical specificationBS EN 3875:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3875 August 2017 ICS 25.160.50; 49.025.05; 49.025.15 English V
2、ersion Aerospace series - Metallic materials, Filler metal for brazing - Technical specification Srie arospatiale - Matriaux mtalliques, Mtaux dapport de brasage - Spcification technique Luft- und Raumfahrt - Metallische Werkstoffe - Hartlote - Technische Lieferbedingungen This European Standard was
3、 approved by CEN on 14 November 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such n
4、ational standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own la
5、nguage and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Gree
6、ce, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR
7、NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3875:2017 ENational forewordThis British Standard is the UK implementation of EN 3875:2017.The UK partici
8、pation in its preparation was entrusted to Technical Committee ACE/61, Metallic materials for aerospace purposes.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract.
9、Users are responsible for its correct application. The British Standards Institution 2017 Published by BSI Standards Limited 2017ISBN 978 0 580 53318 1ICS 25.160.50; 49.025.05; 49.025.15Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was publish
10、ed under the authority of the Standards Policy and Strategy Committee on 30 September 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 3875:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 3875 August 2017 ICS 25.160.50; 49.025.05; 49.025.15 English
11、Version Aerospace series - Metallic materials, Filler metal for brazing - Technical specification Srie arospatiale - Matriaux mtalliques, Mtaux dapport de brasage - Spcification technique Luft- und Raumfahrt - Metallische Werkstoffe - Hartlote - Technische Lieferbedingungen This European Standard wa
12、s approved by CEN on 14 November 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such
13、national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own l
14、anguage and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Gre
15、ece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR
16、 NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3875:2017 EBS EN 3875:2017EN 3875:2017 (E) 2 Contents Page European foreword 3 Introduction 4 1 Scope 5
17、2 Normative references 5 3 Terms and definitions 5 4 Wording of order . 7 5 Health and safety . 7 6 Technical requirements 8 BS EN 3875:2017EN 3875:2017 (E) 3 European foreword This document (EN 3875:2017) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardizat
18、ion (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. This European Standard shall be giv
19、en the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2018, and conflicting national standards shall be withdrawn at the latest by February 2018. Attention is drawn to the possibility that some of the elements of this document m
20、ay be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bul
21、garia, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switze
22、rland, Turkey and the United Kingdom. BS EN 3875:2017EN 3875:2017 (E) 4 Introduction This European Standard is part of the series of EN metallic material standards for aerospace applications. The general organization of this series is described in EN 4258. BS EN 3875:2017EN 3875:2017 (E) 5 1 Scope T
23、his European Standard defines the requirements for the ordering, manufacture, testing, and delivery of all forms of filler metal for brazing for aerospace applications. It shall be applied when referred to in the EN material standard unless otherwise specified on the drawing, order or testing schedu
24、le. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any a
25、mendments) applies. EN 2032-1, Aerospace series Metallic materials Part 1: Conventional designation EN 2032-2, Aerospace series Metallic materials Part 2: Coding of metallurgical condition in delivery condition EN 2078, Aerospace series Metallic materials Manufacturing schedule, inspection schedule,
26、 inspection and test report Definition, general principles, preparation and approval EN 3876, Aerospace series Test method for metallic materials Braze alloys Fusion test1)EN 3877, Aerospace series Metallic materials Test method Determination of solidus and liquidus temperatures by differential ther
27、mal analysis of braze alloys1)EN 3878, Aerospace series Test method for metallic materials Braze alloys Flexibility test1)EN 4061, Aerospace series Amorphous foil in filler metal for brazing Thickness 25 m a 64 m Dimensions1)EN 4062, Aerospace series Rolled foil in filler metal for brazing Thickness
28、 a 1 mm Dimensions1)EN 4063, Aerospace series Wire in filler metal for brazing Diameter 0,6 mm D 4 mm Dimensions1)EN 4064, Aerospace series Tape in filler metal for brazing Thickness 0,075 mm a 1,5 mm Dimensions1)EN 4066, Aerospace series Borided foil in filler metal for brazing Thickness 25 m a 100
29、 m Dimensions1)EN 4258, Aerospace series Metallic materials General organization of standardization Links between types of EN standards and their use EN 4259, Aerospace series Metallic materials Definition of general terms1)EN 4268, Aerospace series Metallic materials Heat treatment facilities Gener
30、al requirements EN 9100, Quality Management Systems Requirements for Aviation, Space and Defence Organizations EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts ISO 3954, Powders for powder metallurgical purposes Sampling ISO 4497, Metallic pow
31、ders Determination of particle size by dry sieving 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply: Definition of general terms, see EN 4259. 1)Published as AECMA Prestandard at the date of publication of this European Standard BS EN 3875
32、:2017EN 3875:2017 (E) 6 3.1 Method of melting 3.1.1 air melting melting of charge is carried out in air i.e. without vacuum or inert atmosphere, using a protective slag, when required 3.1.2 vacuum melting melting of the charge is carried out in vacuum 3.1.3 inert gas melting melting of the charge is
33、 carried out in an inert atmosphere 3.2 atomization process by which molten metal is separated into droplets which solidify as a powder: a) gas atomization: a process of impingement at high velocity of a stream of molten metal in an inert gas to produce droplets which solidify in flight to procedure
34、 a powder; b) rotating electrode atomization: a process in which the extremity of a rotating consumable electrode is melted by an appropriate heat source (for example: electric arc, electron beam), in such a way that the droplets are ejected from the periphery of the electrode and solidify into a po
35、wder; c) spinning disk atomization: a process in which a molten metal is poured onto a rotating solid surface in such a way that the molten metal droplets are ejected from the surface and solidify in an inert gas to produce a powder; d) vacuum atomization: a process in which a stream of molten metal
36、, over saturated by a pressurised inert gas, is introduced in a vessel under vacuum so that the stream is disintegrated by the gas expansion to produce droplets which solidify to produce a powder; e) water atomization: a process in which a high velocity water spray impinges on to molten metal to pro
37、duce metal droplets which solidify to produce a powder. The powder is cooled to room temperature by water or under an inert gas 3.3 braze powder solidified product resulting from the atomization process 3.4 powder blend product obtained by blending one or more powder cast atomized and sieved in acco
38、rdance with the material standard under the same production conditions 3.5 braze wire wrought product of uniform solid section supplied in straight length, coils or on spools 3.6 braze foil a) rolled foil: flat rolled product of rectangular section and uniform thickness up to 1 mm, supplied in flat
39、lengths, or in coils with slit edges; BS EN 3875:2017EN 3875:2017 (E) 7 b) amorphous foil: product obtained from a stream of molten metal poured onto a solid surface and rapidly cooled, substantially without a crystalline structure; c) borided foil: rolled foil with boron, or boron and other element
40、s, diffused into the surface 3.7 braze tape powder mixed with a binder to form a paste, which is spread on a plasticizer in the form of a tape Note 1 to entry: The tape may have a pressure sensitive adhesive, protected by a release layer applied to the side opposite to the plasticizer. 3.8 binder or
41、ganic resin dissolved in a solvent or dispersed in an aqueous carrier 3.9 plasticizer flexible organic sheet material capable of being coated with braze alloy on one side 3.10 release layer protective layer covering the pressure sensitive adhesive coating 3.11 braze paste powder mixed with a suitabl
42、e binder 4 Wording of order The order shall clearly indicate: quantities to be supplied; dates of delivery; material standard number; delivery condition; dimensions and tolerances or reference to an appropriate dimensional standard; specific weight for tape; forwarding address; nature and type of pa
43、cking, if required; definition and frequency of any special tests and their retest procedures, if required. 5 Health and safety The product in the delivery condition shall fulfil the health and safety laws of the area of the country when and where it is to be delivered. A product safety data sheet s
44、hall be available. BS EN 3875:2017EN 3875:2017 (E) 8 6 Technical requirements 6.1 General The product shall be manufactured in accordance with the requirements of the relevant material standard and the applicable requirements of this specification. A manufacturing schedule shall be established and a
45、pplied in accordance with EN 2078. Product shall satisfy the requirements of the material standard and/or order and shall be free from irregularities prejudicial to the subsequent manufacture or use of this product. Notwithstanding previous acceptance complying with this material standard, any produ
46、ct that is found, at a later stage, to contain such defects shall be rejected. Unless otherwise specified, the requirements in Tables 1 and 2 shall apply in conjunction with those of the relevant material standard. Table 1 relates to lines 1 to 29 (inclusive) of the material standard and Table 2 rel
47、ates to lines 30 onwards in which the sub-line format is also used. Lines 2 to 98 may also be opened in line 100 if the material standard details specific qualification requirements. If a specific line number is not shown in Tables 1 and 2, the requirement is stated in the material standard and/or o
48、rder. 6.2 Qualification requirements Qualification requirements when invoked by the material standard and/or order are detailed in Tables 1 and 2. Unless otherwise agreed between the manufacturer and purchaser the qualification phase shall be run on the first three batches. 6.3 Release requirements
49、6.3.1 Release tests Release testing shall be the responsibility of the manufacturer. The purchaser reserves the right to perform any of the testings and/or tests required by the material standard and/or order. The test samples shall be representative of the product. When required the manufacturer shall inform the purchaser of the planned dates for extraction of samples and release testing in order that these operations may be witnessed
