ASD-STAN PREN 3021-2015 Aerospace series Molybdenum disulphide dry film lubricants graphite and halogen free Technical specification (Edition P 1).pdf

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1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 3021 Edition P 1 December 2015 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Rue Montoyer 10 - 1000 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.org ICS: Descriptors: ENGLISH VERSION

2、Aerospace series Molybdenum disulphide dry film lubricants graphite and halogen free Technical specification Luft- und Raumfahrt Trockenschmierstofffilme aus Molybdnsulfid-Basis, graphitfrei und halogenfrei Technische Lieferbedingungen Srie arospatiale Lubrifiants base de bisulfure de molybdne, sans

3、 graphite et sans halogne Spcification technique This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been te

4、chnically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard.

5、After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN a

6、t national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 1st December 2015 Comments should be sent within six months after the date of publication to ASD-STAN Mechanical Domain Copyright 20

7、15 by ASD-STAN prEN 3021:2015 (E) 2 Contents Page Foreword 2 Introduction .3 1 Scope 3 2 Normative references 3 3 Terms and definitions .5 4 Composition .5 5 Curing .6 6 Storage 6 7 Batch release and qualification testing quality assurance .6 Foreword This standard was reviewed by the Domain Technic

8、al Coordinator of ASD-STANs Mechanical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 3021:2015 (E) 3 Introduction The requirements of this specification con

9、cern graphite and halogen free molybdenum disulphide dry film lubricants for fastener and other parts subjected to sliding and wear. Graphite and halogenated substances may have corrosive effects on the substrate. 1 Scope This standard specifies the qualification and test requirements for graphite a

10、nd halogen free molybdenum disulphide dry film lubricant. Test requirements and testing of fretting, corrosion, wear and friction properties of relevant lubricants are not part of this standard. Refer to relevant standards in normative references. All testing defined in this standard has to be certi

11、fied by the manufacturer of the lubricant. In order to achieve uniform coatings with defined thickness and best adhesion properties, spray application in combination with heat curing is recommended. 2 Normative references The following referenced documents are indispensable for the application of th

12、is document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2491, Aerospace series Molybdenum disulphide dry lubricants Coating methods EN 2497, Aerospace series Dry abrasive blasting

13、of titanium and titanium alloys EN 3026, Aerospace series Test method for dry film lubricants Corrosion test on steel specimens EN 3027, Aerospace series Test method for dry film lubricants Salt spray test EN 3030, Aerospace series Test method for dry film lubricants Solids content EN 3840, Aerospac

14、e series Paints and varnishes Technical specification EN 3847, Aerospace series Paints and varnishes Determination of sedimentation rating 1) EN 4160, Aerospace series Paints and varnishes Determination of the effect of thermal exposure EN 10204, Metallic products Types of inspection documents EN IS

15、O 1513, Paints and varnishes Examination and preparation of test samples (ISO 1513:2010) EN ISO 1519, Paints and varnishes Bend test (cylindrical mandrel) (ISO 1519:2011) EN ISO 1523, Determination of flash point Closed cup equilibrium method (ISO 1523:2002) 1) Published as ASD-STAN Prestandard at t

16、he date of publication of this standard. http:/www.asd-stan.org/ prEN 3021:2015 (E) 4 EN ISO 1524, Paints, varnishes and printing inks Determination of fineness of grind (ISO 1524:2013) EN ISO 2409, Paints and varnishes Cross-cut test (ISO 2409:2013) EN ISO 2431, Paints and varnishes Determination o

17、f flow time by use of flow cups (ISO 2431:2011) EN ISO 2808, Paints and varnishes Determination of film thickness (ISO 2808:2007) EN ISO 2811-1, Paints and varnishes Determination of density Part 1: Pyknometer method (ISO 2811-1:2011) EN ISO 2811-2, Paints and varnishes Determination of density Part

18、 2: Immersed body (plummet) method (ISO 2811-2:2011) EN ISO 2811-3, Paints and varnishes Determination of density Part 3: Oscillation method (ISO 2811-3:2011) EN ISO 2811-4, Paints and varnishes Determination of density Part 4: Pressure cup method (ISO 2811-4:2011) EN ISO 2812-1, Paints and varnishe

19、s Determination of resistance to liquids Part 1: Immersion in liquids other than water (ISO 2812-1:2007) EN ISO 2812-2, Paints and varnishes Determination of resistance to liquids Part 2: water immersion method (ISO 2812-2:2007) EN ISO 3675, Crude petroleum and liquid petroleum products Laboratory d

20、etermination of density Hydrometer method (ISO 3675:1998) EN ISO 4618, Paints and varnishes Terms and definitions (ISO 4618:2014) EN ISO 4628-2, Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance P

21、art 2: Assessment of degree of blistering (ISO 4628-2:2003) EN ISO 6270-1, Paints and varnishes Determination of resistance to humidity Part 1: Continuous condensation (ISO 6270-1:1998) EN ISO 8504-2, Preparation of steel substrates before application of paints and related products Surface preparati

22、on methods Part 2: Abrasive blast-cleaning (ISO 8504-2:2000) EN ISO 9117-1, Paints and varnishes Drying tests Part 1: Determination of through-dry state and through-dry time (ISO 9117-1:2009) EN ISO 9117-6, Paints and varnishes Drying tests Part 6: Print-free test (ISO 9117-6:2012) EN ISO 9227, Corr

23、osion tests in artificial atmospheres Salt spray tests (ISO 9227:2012) ISO 3270, Paints and varnishes and their raw materials Temperatures and humiditys for conditioning and testing ISO 8080, Aerospace Anodic treatment of titanium and titanium alloys Sulfuric acid process ISO 11075, Aircraft De-icin

24、g/anti-icing fluids ISO type I ISO 11078, Aircraft De-icing/anti-icing fluids ISO types II, III and IV prEN 3021:2015 (E) 5 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 dry lubricant batch dry lubricant quantity of known composition (MoS2

25、containing resin) prepared as one mixture using the same equipment 3.2 runs sags local irregularities in the film or coat thickness caused by the downward movement of a coating material during drying in a vertical or an inclined position Note 1 to entry: Small sags may be called runs, tears or dropl

26、ets; large sags may be called curtains. SOURCE: EN ISO 4618, definition 2.220 3.3 blister convex deformation in a film, arising from local detachment of one or more of the constituent coats SOURCE: EN ISO 4618, definition 2.30 3.4 porosity fine holes or pores within the coating 3.5 wrinkling develop

27、ment of ripples in a film of coating material during drying SOURCE: EN ISO 4618, definition 2.277 3.6 pinholing presence of small holes in the film resembling those made by a pin SOURCE: EN ISO 4618, definition 2.196 4 Composition 4.1 General The components shall be free from substances which may ha

28、ve a harmful effect on the substrate (e.g. corrosion, stress corrosion) and other substances, e.g.: halogenated substances, graphite, metal powders or concentration of substances which have a harmful effect on environment and or health. The components shall be free from substances which may have a h

29、armful effect on the substrate e.g.: halogenated substances, graphite, metal powders or concentration of substances which have a harmful effect on environment and or health. 4.2 Type A, room temperature curing Suitable for applications on e.g. aluminium alloys, fibre reinforced plastics. prEN 3021:2

30、015 (E) 6 4.3 Type B, heat curing Suitable for applications on e.g. titanium, steels, nickel refractory alloys. 5 Curing 5.1 At ambient temperature Curing at ambient temperature shall be in accordance with the manufacturers recommendations. Drying may be accelerated by heat, considering the maximum

31、temperature allowed for the substrate material. 5.2 Heat curing Heat curing shall be in accordance with the manufacturers recommendations. Heat curing instead of curing at ambient temperature (5.1) ensures a better adhesion, higher hardness and chemical resistance of dry film lubricant. 6 Storage Th

32、e storage conditions, the date of manufacture and the expiry date shall be specified by the manufacturer. Once the original container has been opened, the products shall not be returned to storage. 7 Batch release and qualification testing quality assurance See EN 2491 for application methods for th

33、ese dry film lubricants. Spray application in combination with heat curing is recommended in order to achieve uniform coatings with defined thickness and best adhesion properties. 7.1 Qualification tests For product qualification, all tests defined in this standard shall be performed. A minimum of t

34、hree production batches shall be tested for qualification purposes. Unless otherwise agreed, the test film thickness for qualification testing (after mechanical finishing) shall be 7,0 m 2 m. 7.2 Batch Acceptance Testing (BAT) For batch acceptance all tests marked with “BAT” in first column shall be

35、 done. Test results of batch acceptance testing (serial production testing) shall be stated in an inspection certificate according to EN 10204. Type of EN 10204 inspection certificate to be agreed between manufacturer and customer. See Table 1. prEN 3021:2015 (E) 7 Table 1 General requirements Term

36、Detail Material description Organic, graphite-, metal powder free, dry film lubricant, main constituent molybdenum disulphide. Formulation MoS2 molybdenum disulphide in organic binder. Preparation According to manufacturers instruction. Technical specification EN 3840 Marking EN 3840 Storage stabili

37、ty According to manufacturers instruction. Visual appearances The paint film applied shall result in an even finish free from runs, sags, blisters, porosity, wrinkling, pin holing or other defects. Application Dry film thickness 5 m up to 15 m. CRS Corrosion Resistant Steel: Unless otherwise agreed

38、Pretreatment: Abrasive blasting according to EN ISO 8504-2. Ti Titanium / Titanium Alloy: Unless otherwise agreed Pretreatment: Abrasive blasting according to EN 2497 or Anodising according to ISO 8080. Drying conditions According to manufacturers instruction. Quality assurance EN 3840 Packaging EN

39、3840 Health and safety EN 3840 Qualification procedure EN 3840 Determination of film thickness: EN ISO 2808. Table 2 Physical and chemical characteristics Delivery conditions Tests according to EN 3840 Test Test criteria Test requirements BAT Condition As received in the original container. Test met

40、hod EN ISO 1513 Requirement Shall be free from extraneous matter and show no skinning, gelling, hard settlement, or other defect which will prevent satisfactory application to produce a defect free film. 1 BAT Non volatile content Test method EN 3030 (40 to 45) mass % Requirement 7 Flash point Test

41、method EN ISO 1523 Requirement C 10 % ref. Value a b prEN 3021:2015 (E) 8 8 BAT Flow time (viscosity) Test method EN ISO 2431 Test condition Requirement s 10 % ref. Value a b 5 Sedimentation rating Test method EN 3847 Test condition As received in the original container. Requirement ml/4 h 10 % of r

42、ef. Value a b 3 BAT Density Test method EN ISO 2811-1 to EN ISO 2811-4 or EN ISO 3675 Test condition ISO 3270 Requirement g/cm3 2 % of ref. Value a b 10 Fineness of grind (Particle size) Test method EN ISO 1524 Requirement m 10 to 15 22 BAT Drying time - Test method EN ISO 9117-6 Print free test Pan

43、el CRS, Corrosion resistant austenitic steel or Ti, Titanium/Titanium alloy Pretreatment CRS: Abrasive blasting according to EN ISO 8504-2. or Ti: Abrasive blasting according to EN 2497 Ti: Anodising according to ISO 8080 Coating Coating to this standard. Test condition ISO 3270 Requirement h 0,5 re

44、f. Value b 23 BAT Through Test method EN ISO 9117-1 dry time Panel CRS, Corrosion resistant austenitic steel or Ti, Titanium/Titanium alloy Pretreatment CRS: Abrasive blasting according to EN ISO 8504-2 or Ti: Abrasive blasting according to EN 2497 Ti: Anodising according to ISO 8080 Coating Coating

45、 to this standard. Test condition ISO 3270 Requirement h 0,5 ref. Value b a The deviation is that compared to the reference value (see Note b). b The reference value is that established during qualification. prEN 3021:2015 (E) 9 Table 3 Mechanical and physical characteristics Dried film Tests accord

46、ing to EN 3840 Test Test criteria Test requirements 24 BAT Cross cut Test method EN ISO 2409 Panel CRS, Corrosion resistant austenitic steel Ti, Titanium/Titanium alloy Pretreatment CRS: Abrasive blasting according to EN ISO 8504-2 Ti: Abrasive blasting according to EN 2497 or Ti: Anodising accordin

47、g to ISO 8080 Coating Coating to this standard. Test condition ISO 3270 Requirement Classification GT 1 24 Bend test Test method EN ISO 1519 Panel CRS, Corrosion resistant austenitic steel Ti, Titanium/Titanium alloy Pretreatment CRS: Abrasive blasting according to EN ISO 8504-2 Ti: Abrasive blastin

48、g according to EN 2497 or Ti: Anodising according to ISO 8080 Coating Coating to this standard. Test condition ISO 3270 Requirement ISO 1519 Mandrel 12 mm a a No cracking or detachment (10 magnification). prEN 3021:2015 (E) 10 Table 4 Environmental exposure / testing Dried film Tests according to EN

49、 3840 Test Test criteria Test requirements 38 Thermal Test method EN 4160 exposure Panel CRS, Corrosion resistant austenitic steel Ti, Titanium/Titanium alloy (Resistance to high temperature) Pretreatment CRS: Abrasive blasting according to EN ISO 8504-2 Ti: Abrasive blasting according to EN 2497 Ti: Anodising according to ISO