AECMA PREN 2028-1975 Split Pins in Corrosion Resistant Steel Aerospace Series Edition 1《航空航天系列.防腐蚀钢制开口销.第1版》.pdf

1、e - t a 03 v! I !? d U 5 U I C c V: I- *i! U 2 u c U a G 2 C F 4 5 ? * .- AECMA PREN2028 75 1012311 0001743 7 - A.E.c.M.A. STANDARD DRAFT NORME A.E.C.M.A. pr E N 2028 A.E.C.M.A. NORM Edition 1 September 1976 ENGLISH VERSION SPLIT PINS IN CORROSION RESISTANT STEEL AEROSPACE SERIES GOUPILLES FENDUES E

2、N ACIER INOXYDABLE SERI E ACROSPATI ALE SPLINTE AUS NICHTROSTENDEM STAHL LUFT-UND RAUMFAHRT-REIH E The text of this standard, which exists in three equivalent versions (English, French, German), has been drawn up under the responsability of A ECMA (Association Europenne des Constructeurs de Matriel

3、Arospatial) and has .receive.d the agreement of Official Services concerned. It is published on yellow paper as a draft European Standard intended to receive, under the same presentation and according to its own rules, the approval of CEN (European Committee for Standardization). n .- I I Approvod b

4、y The equivalent versions in French and German languages can COMITI DE NORMALISATION be supplied by B.N.A.E., 8, rue Moreau-Vauthier j “O0 BOULOGNE-BILLANCOURT - FRANCE. of A.E.C.M.A. 1974-11-14 COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling S

5、ervicesIAECMA PREN2028 75 W LOL2331 0003744 9 W prEN2028 Pego 2 .- FOREWORD This standard is based on Recommandation ISO/R 1234, supplemented by the international rules of codification specific to the aerospace industry, It conforms to Recommandation ISO/R 1234 regarding chosen split pins dimensions

6、 to which dimensions A min. and R max. have been added. However the Diameter Code shown in this standard is based on maximum pin diameter and not on Nominal size = diameter of split pin hole as shown in Recommandation ISO/R 1234. CONTENTS I SCOPE AND FIELD OF APPLICATION 2 REFERENCE 3 MATERIAL 4 REQ

7、UIRED CHARACTERISTICS 5 METHODS OF TEST OR INSPECTION 6 DESIGNATION 7 MARKING e e O a r- -_I - COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling ServicesDRAFT EUROPEAN STANDARD AEROSPACE SERIES prEN2028 - _ - - SPLIT PINS IN CORROSION RESISTANT S

8、TEEL 1 SCOPE AND FIELD OF APPLICATION This standard specifies the required characteristics of corrosion resistant steel split pins, for use in aerospace applications at teinperatures below 500 OC. - . 2 REFERENCE . ISO/R 1101 - Tolerances of form and of position - Part 1 : Generalities, symbols, ind

9、ications on drawings. 3 MATERIAL Corrosion resistant steel FE-PA12 as defined by- EN2120 l), - 4 REQUIRED CHARACTERISTICS -1 Section E.E Shape and combination of eyelet and ends at manufacturers option 1) In preparation. COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed

10、 by Information Handling Services- - AECMA PREN2028 75 W 3012333 O003746 2 prEN2028 Pqge 4 TABLE - Dimensions and tolerances Dimensions in millimetres 07 10 14 18 23 29 37 46 Diameter code - Symbols max. min. D rnax. min. A Length code 03 1,25 1,25 1,25 1,25 2,4 3 3,2 4 5 1,4 2 2,8 3,G 4., 112 1,7 2

11、,4 3,2 4 0,05 0,lO 0,15 0,15 0,20 _I-_II 10 max. min. C 8 0,40 max. R“ L 1 1 I 3lerance fi 6 8 O05 O06 008 010- o12 014 . 016 018 020 10 12 14 16 18 20 022 O26 028 22 25 28 32 36 40 032 036 040 045 050 056 O63 071 080 45 50 56 63 71 80 f2 o90 7 00 90 1 O0 * Dimension B is measured from the bearing s

12、urface of the hole to the end of the eyelet. * Angle broken during wire drawing. COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling Services- AECMA PREN2028 75 W LOL23LL 0001747 4 W Q prEN2028 Page 6 6 METHODS OF TEST OR INSPECTION 5.1 Acceptance

13、requirements 5.1 .I Bend tests Bend each leg through an angle of 90 near the centre of its length and in the normal direction of opening the split pin. The bend shall have radius of not more than D/2 maximum. After two bending operations of each leg the pin shall show no crack. These tests are to be

14、 done on 0, % of each batch produced. 5.1,2 Appearance Ends shall be free from sharp edges. The two legs closed to each other shall form a circular cross section. The eyelet shall be blended by a radius with the body of the split pin, but an indentation may be accepted if it forms no sharp angle at

15、the root and if the reduction of thickness of the leg is not more than 5 % nominal diameter. The split pins shall be free from cracks and any defects. 6 DESIGNATION Each split pin shall be designated by a reference made up as follows : Name I Identification block SPLIT PIN I EN2028-1 Number of EN st

16、andard )I8 -r 018 = Length L in millime tres (see Length Code) 14 = Diameter D max, in tenths of a millimetre (see Diameter Code) 7 MARKING Marking shall be applied on each packing and shall include at least the following : Designation in accordance with clause 6. Name of manufacturer or supplier. Quantity (mass or number). COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling Services