1、AECMA STANDARD NORME AECMA AECMA NORM prEN 3946 Edition P 2 September 2001 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES - STANDARDIZATION (AECMA-STAN) Gulledelle 94 - 8-1200 BRUXELLES - Tel. (+32) 2 775 81 10 - Fax. (+32) 2 775 81 11 ICs: Supersedes edition P 1 January 1994 Descript
2、ors: ENGLISH VERSION Aerospace series Nickel base alloy NI-BI 5701 Filler metal for brazing Powder or paste Srie arospatiale Alliage base nickel NI-Bi5701 Mtal dapport de brasage Poudre ou pte Luft- und Raumfahrt Nickelbasislegierung NI-B15701 Hartlot in Form von Pulver oder Paste This Aerospace Ser
3、ies“ Prestandard has been drawn up unde European Association of Aerospace Industries - Standardiza needs of the European Aerospace Industry. It has been concerned Domain following member comments. shall not be changed to an Afi er examinati ement of AECMA-STAN it will be submitted as a for Standardi
4、zation) for formal vote. I Replace page 1 of the previous edition by this page Nota - Extra copies can be supplied by B.N.A.E. - Technopolis 54 - 199, rue JeanJacques Rousseau - 92138 ISSY-LEC-MOULINEAUX CEDEX Comments should be sent within six months after the date of publication to I Material Doma
5、in I Withdrawal approved 2001-09-28 AECMA-STAN Gulledelle 94 8-1200 BRUXELLES Mr Evetts I I aecrna 200 CEN PRENp3946 94 0 3404589 0062476 BIB prEN 3946 Page 3 O Introduction For the use of this standard, see EN 2500-6. 1 Scope This standard specifies the requirements relating to nickel base braze fi
6、ller metal NI-61 5701 in powder or paste form for aerospace applications. 2 Normative references EN 2500-6 Aerospace series - Instructions for the drafting and use of metallic material standards - Part 6 : Specific requirements for braze alloys 1) EN 3875 Aerospace series - Braze alloys - Technical
7、specification 1) Previous page is blank 1) In preparation at the date of publication of this standard CEN PRENx39irb 94 m 3404589 0062477 754 m prEN 3946 Page 4 composition % 1) Material designation I Nickel base braze alloy NI-BI 5701 29,5 33,5 - 35,5 min. max. 30,5 34,5 0,15 36,5 I Element I Chemi
8、cal Method of melting Au Air or inert gas or vacuum melted Pd Powder Water or inert gas atomised and sieved Ni Paste Water or inert gas atomised and sieved and mixed with a binder 5.1 Technical specification 5.2 Dimensional standards Form Method of production Limit dimensions mm) I EN 3875 See EN 38
9、75 6 6.1 Delivery condition As manufactured As manufactured and Heat treatment - - U Delivery condition or mixed with a binder I 6.2 Delivery condition code U Delivery condition 7 Use condition and Heat treatment 8 Sample - Test piece - Heat treatment - Dimensions concerned Thickness of cladding on
10、each face mm - % - Direction of test piece Temperature I 8 I OC - - T Proof stress Rp0,2 MPa - Strength R, MPa - Elongation A% - Reduction of 2 % - area Hardness Shear strength R, MPa Bending k- - - - 20 21 22 23 24 25 26 27 - - - - Impact strength - Temperature OC - Time h - Stress Qg MPa - C Elong
11、ation a% - Rupture stress GR MPa - Elongation at A % - Notes (see line 98) 1) - rupture CEN PREN*394b 94 m 3404589 0062478 b70 M - Powder prEN 3946 Page 5 Paste External defects - Thermal analysis (Differential thermal analysis) See EN 3875 - See EN 3875 Wettability (fusion test) Metallic alloy cont
12、ent 7 - Particle size (Sieve analysis) Liquidus : 11 65 OC Solidus : 11 35 OC See EN 3875 Designation 7 Notes Powder Paste - 84 % Metallic alloy content I90 % Typical use - See EN 3875 - - 1) The chemical composition refers to the metallic alloy content. Joining nickel and cobalt base heat resisting alloys. I -I -
