1、Designation: D 2510 94 (Reapproved 2006)An American National StandardStandard Test Method forAdhesion of Solid Film Lubricants1This standard is issued under the fixed designation D 2510; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revisi
2、on, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This test method2cov
3、ers the measurement of the adhe-sion characteristics of dry solid film lubricants.1.2 The values stated in SI units are to be regarded asstandard. The values given in parentheses are provided forinformation only.1.3 This standard does not purport to address all of thesafety concerns, if any, associa
4、ted with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:3B 209M Specification for Aluminum and Aluminum-AlloySheet an
5、d Plate MetricD 1000 Test Methods for Pressure-Sensitive Adhesive-Coated Tapes Used for Electrical and Electronic Applica-tionsD 1193 Specification for Reagent WaterD 1730 Practices for Preparation of Aluminum andAluminum-Alloy Surfaces for PaintingD 3330/D 3330M Test Method for Peel Adhesion ofPres
6、sure-Sensitive TapeF22 Test Method for Hydrophobic Surface Films by theWater-Break Test2.2 U.S. Military Specification:4MIL-L-460103. Terminology3.1 Definition :3.1.1 dry solid film lubricantsdry coatings consisting oflubricating powders in a solid matrix bonded to one or bothsurfaces to be lubricat
7、ed.4. Summary of Method4.1 The dry solid film lubricant is applied to anodizedaluminum panels, immersed in water or other fluids for 24 h,and then wiped dry. A strip of masking tape is pressed onto thepanel and removed abruptly. Film removal exposing thesurface of the metal panel is the criterion fo
8、r failure.5. Significance5.1 Effective solid film lubricant coatings must adhere tosurfaces to provide adequate lubrication in applications withrestricted access where fluid lubricants cannot easily be replen-ished. Loss of coating adhesion results in metal to metalcontact causing significant wear o
9、f contacting surfaces. Adhe-sion is critical to the performance of the solid film lubricant.Examples of solid film lubricant applications include fasteners,bearings and sliding members in automotive, aircraft, andaerospace hardware.5.2 This test method is intended to determine the adhesionof solid f
10、ilm lubricant coatings when submitted to contact withwater and other fluids. Results of this test provide an indicationof the suitability of the lubricant coating in applications wherecontact with water or other fluids is likely.6. Apparatus6.1 Rubber Covered Steel RollerA steel roller, 82.6 6 2.5mm
11、 (3.25 6 0.1 in.) in diameter and 44.5 6 1.3 mm (1.75 60.05 in.) in width, covered with rubber approximately 6.4 mm(14 in.) in thickness having a durometer hardness of 80 6 5.The weight of the roller proper which applies pressure to thespecimen shall be 2.04 6 0.05 kg (4.5 6 0.1 lb). It shall be soc
12、onstructed that the weight of the handle is not added to theweight of the roller during use.6.2 Stylus, or equivalent.56.3 Oven, forced-circulation, capable of maintaining 149 65.5C (300 6 10F).1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products and Lubricants and
13、is the direct responsibility of SubcommitteeD02.L0.05 on Solid Lubricants.Current edition approved Nov. 1, 2006. Published December 2006. Originallyapproved in 1966. Last previous edition approved in 1998 as D 2510 94 (1998).2Refer to U. S. Military Specification MIL-L-46010March 4, 1988.3For refere
14、nced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Available from Standardization Documents Order Desk, Bldg. 4 Section D,
15、 700Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.5The stylus shall be L. S. Starrett Scratch Gage No. 29 or equivalent.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6.4 Micrometer, reading 0 to 25 6 0.0025 mm (0 to 1 60.0
16、001 in.) with a 1-ball anvil.7. Reagents and Materials7.1 Test Panels, of aluminum alloy 2024 (conforming toSpecification B 209M, approximately 75 by 150 by 0.5 mm (3by 6 by 0.020 in.) thick, anodized in accordance with PracticesD 1730, Type C, Method 2, chromic acid coatings.7.2 Tape, Masking, 25 m
17、m (1 in.) wide, made of paper(pressure-sensitive) with an adhesive strength of at least 28kg/m (25 oz/in.) when tested in accordance with Procedure Aof Test Methods D 3330.NOTE 1A suitable tape meeting this specification is available com-mercially.6It must be less than 12 months old. Its adhesion st
18、rength maybe checked by using Test Methods D 1000, to ensure uniformity.7.3 Water, conforming to Specification D 1193.7.4 Solvent, safe, non-filming, nonchlorinated.NOTE 2Petroleum distillates and hexanes formerly used as solvents inthis test method, have been eliminated due to possible toxic effect
19、s. Eachuser should select a solvent that can meet the applicable safety standardsand still thoroughly clean the parts.8. Test Sample and Specimen Preparation8.1 Have a sufficient quantity of solid film lubricant toperform the test. Prepare the test panels as follows:8.1.1 Liquid-degrease in a solven
20、t conforming to the re-quirements of 7.4. The panels shall be considered clean whenthe surface maintains a continuous water film for a period of atleast 1 min after immersion in clean water at a temperature of38 6 3C (100 6 5F) in accordance with 1.1 of Test MethodF22.8.1.2 Coat the test panels with
21、 dry solid film lubricant bymeans of spraying or an equivalent method to produce a dryfilm thickness between 0.005 and 0.013 mm (0.0002 and0.0005 in.) and cure the film.8.1.3 In most cases, curing shall be carried out according tothe particular manufacturers specifications. If such instruc-tions are
22、 not provided, cure the film by air drying for6hat26.76 3C (80 6 5F) or by air drying for 30 min at 26.7C (80F)followed by1hinanair-circulating oven at 149C (300F).8.1.4 Measure the dry film thickness using a micrometer orequivalent gage.9. Procedure AFor Resin-Bonded Coatings9.1 Immerse the panels
23、in a beaker of water to a depth ofhalf the length of the panel for 24 h at room temperature. Takecare to ensure that the panels are separated.9.2 Remove panels and wipe dry with a soft, dry, lint-freecloth. Air dry the panels at 25 6 3C (77 6 5F) at a relativehumidity between 45 and 55 % for 1 6 0.1
24、 h.9.3 Using the stylus, make two parallel scratches 25 mm (1in.) apart on the panels (within 1 min after drying). Scratchesshall be through the films (break through), parallel to longdimension of panel, and pass through both the water-immersedsection and dry section.9.4 Place a piece of masking tap
25、e lightly over the panel,perpendicular to the scratches, and press the tape down withtwo passes of the roller. The panel shall be resting on a hardsurface and minimum pressure shall be exerted by the operatoron the roller during the rolling operation. The tape shall beplaced over both the immersed a
26、nd dry sections.9.5 Remove the tape with an abrupt motion.9.6 Examine the test panel visually.9.7 Report loss of adhesion of the film from the surface ofthe panel. Film removal exposing areas of the metal surface isindicative of poor adhesion characteristics.9.8 Report the conditions of application
27、and of curing thecoating.10. Procedure BFor Silicate or Phosphoric Acid-Bonded Coatings10.1 Proceed in accordance with 9.3-9.8, omitting 9.1 and9.2.11. Procedure CFor All Coatings, Resistance to FluidsOther Than Water11.1 Place 300 6 10 mL of each test fluid under consider-ation in a separate 600-mL
28、 Griffin beaker, and suspend a coatedpanel in each in such a manner that approximately one half ofeach panel is immersed. Permit the panels to remain in the testfluid at 74 6 2F (23 6 1C) for 24 6 0.25 h.11.2 Remove the panels from the test fluid and allow themto drain for 1 6 0.1 h. Dip each panel
29、in three separate rinsesof a solvent, conforming to the requirements of 7.4, and permitthem to air dry for at least 1 h.11.3 Proceed in accordance with 9.3-9.8.NOTE 3Procedure C is based on military requirements for resistanceto fuels, solvents, lubricants, and hydraulic fluids which are readilyremo
30、ved by the solvent indicated in 7.5. If it is desired to apply it tochemical rocket propellants or other fluids immiscible with this solvent, orwhich are volatile enough to need no solvent, appropriate variations arerequired. These shall become part of the test report, as shall theidentification of
31、the fluids used.12. Precision and Bias12.1 Since the results of the test are only intended to give apass/fail rating, no statement will be made about either theprecision or the bias of this method.13. Keywords13.1 adhesion; fluid resistance; solid film lubricant6Masking tape No. 250, available from
32、the Minnesota Mining and Manufactur-ing Co. has been found satisfactory for this purpose.D 2510 94 (2006)2ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised tha
33、t determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reappro
34、ved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you fe
35、el that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D 2510 94 (2006)3
