1、CEN PRENM3307 92 m 3qOq589 002Ll837 3 m Edition approved for publication 1992-03-1 3 A. E. C. M .A. STAN DARD NORME A.E.C.M.A. A.E.C.M.A. NORM Comments should be sent within six months C3 Chairman after the date of publication decision A. E. C. M .A. Technopolis - 175, rue Jean-Jacques Rousseau 9213
2、8 Issy-les-Moulineaux Cdex - FRANCE Mr. ARENA prEN 3307 Issue P 1 March 1992 EDIT PAR LASSOCIATION EUROPEENNE DES CONSTRUCTEURS DE MATERIEL AEROSPATIAL Technopolis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cdex -Tl. (1) 47.36.98.76 UDC : Key words : ENGLISH VERSION Aerospace ser
3、ies Screws, pan head, offset cruciform recess, threaded to head, in titanium alloy, Mos2 lubricated Classification : 1 I00 MPa (at ambient temperature)/315 OC Srie arospatiale Luft- und Raumfahrt Flachkopfschrau ben, mit Flgelkreuzschlitz. Gewinde annhernd bis Kopf, aus Titanlegierung, Mos2 geschmie
4、rt Klasse : 1 1 O0 MPa (bei Vis tte cylindrique, empreinte cruciforme dporte, filetes jusqu proximit de la tte, en alliage de titane, lubrifies MOS, Classification : 11 O0 MPa ( temprature ambiante)/315 OC Raumtemperatur)/315 OC This (Aerospace Series. pre-standard has been drawn up under the respon
5、sibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on green paper for the needs ofAECMA-Members. It has been technicallyapprovedby the experts of the concerned Commission following comment by the Member countries. Subsequent to the publication of this
6、pre-standard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services
7、of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for final vote. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking perm
8、itted without license from IHS-,-,-CEN PRENx3307 92 W 3404589 0024838 5 prEN 3307 Page 3 1 Scope This standard specifies the characteristics of screws, pan head, offset cruciform recess, threaded to head, in titanium alloy, MOS, lubricated, classification 1 1 O0 MPa l)/315 OC 2). 2 References IS0 32
9、02, Aerospace - Screws, pan head, internal offset cruciform ribbed drive, threaded to head, M J threads, metallic material, coated or uncoated, strength classes less than or equal to 1 100 MPa - Dimensions IS0 3353, Aerospace construction - Rolled threads - Runout and lead threads IS0 5855-2, Aerosp
10、ace - MJ threads - Part 2 : Limit dimensions for bolts and nuts IS0 7913, Aerospace - Fasteners - Tolerances of form and position for bolts and screws IS0 7994, Aerospace - Internal drive, offset cruciform recess, (Torq-Set 8) for rotary fastening devices - Metric series IS0 9152, Aerospace - Titani
11、um alloy bolts - Strength classification 1 100 MPa and MJ threads - Procurement specification 3, EN 2000, Aerospace series - Quality assurance - EN aerospace products - Approval of the quality system of manufacturers EN 2424, Aerospace series - Identification marking of standard fasteners 4, EN 2491
12、, Molybdenum disulphide dry lubricants - Coating methods 3, EN 2532, Titanium alloy TI-P68 - 1 100 MPa S R, 1 280 MPa - Bar De S 25 mm - Aerospace series 4, TR 3775, Aerospace series - Bolts and pins - National materials 5, 3 Required characteristics 3.1 Configuration - Dimensions - Masses See figur
13、e 1 and table 1. Dimensions and tolerances are in conformity with IS0 3202. They are expressed in millimetres. They apply after anodizing, but prior to lubrication, 3.2 Materials EN 2532 or TR 3775 (titanium alloy, for bolts of classification 1 1 O0 MPa )/315 OC *) 3.3 Surface treatment EN 2491 : 5p
14、m to 10pm 1) Minimum tensile strength of the material at ambient temperature 2) Maximum temperature that the screw can withstand without continuous change in its original characteristics, after return to ambient temperature. The maximum temperature is determined by the material. 3) In preparation at
15、 the date of publication of the present standard 4) Published as AECMA standard at the date of publication of the present standard 5) Published as AECMA technical report at the date of publication of the present standard Previous page is blank Copyright Association Europeene des Constructeurs de Mat
16、eriel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PREN*3307 92 3404589 0024839 7 prEN 3307 Page 4 o) C a :. I,; Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS und
17、er license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PREN*3307 92 3404589 0024840 3 W I II I I E U m 4- v) m Y- O E O .- 4- a n n .- - c I , t 1 1 I I I 4 1 1 9 I , 9 I ! I m 2 I : . I J J 1 1 t t : prEN 3307 Page 5 Copyright Association Europee
18、ne des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- CEN PREN*3307 92 3404589 0024843 5 = prEN 3307 Page 6 4 Designation Example : Description block Identity block II ! Number of this
19、standard i Diameter code (see table 1) I Length code (see table 1) Note : If necessary, the originator code 19005 shall be placed between the description block and the identity block. 5 Marking See table 2 and figure 1. Table 2 Diameter code Style to EN 2424 030 and 040 N- t I B 1 050 to 120, I 6 Technical specification IS0 9152, except for approval of manufacturers : see EN 2000 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
