Standard Test Method for Adhesion of Solid Film Lubricants

SIGNIFICANCE AND USE
Effective solid film lubricant coatings must adhere to surfaces to provide adequate lubrication in applications with restricted access where fluid lubricants cannot easily be replenished. Loss of coating adhesion results in metal to metal contact causing significant wear of contacting surfaces. Adhesion 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, and aerospace hardware.
This test method is intended to determine the adhesion of solid film lubricant coatings when submitted to contact with water and other fluids. Results of this test provide an indication of the suitability of the lubricant coating in applications where contact with water or other fluids is likely.
SCOPE
1.1 This test method covers the measurement of the adhesion characteristics of dry solid film lubricants.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are provided for information only.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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Publication Date
31-Oct-2006
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ASTM D2510-94(2006) - Standard Test Method for Adhesion of Solid Film Lubricants
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D2510–94 (Reapproved 2006)
Standard Test Method for
Adhesion of Solid Film Lubricants
This standard is issued under the fixed designation D2510; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) 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. Scope 3.1.1 dry solid film lubricants—dry coatings consisting of
lubricating powders in a solid matrix bonded to one or both
1.1 This test method covers the measurement of the adhe-
surfaces to be lubricated.
sion characteristics of dry solid film lubricants.
1.2 The values stated in SI units are to be regarded as
4. Summary of Method
standard. The values given in parentheses are provided for
4.1 The dry solid film lubricant is applied to anodized
information only.
aluminum panels, immersed in water or other fluids for 24 h,
1.3 This standard does not purport to address all of the
and then wiped dry.Astrip of masking tape is pressed onto the
safety concerns, if any, associated with its use. It is the
panel and removed abruptly. Film removal exposing the
responsibility of the user of this standard to establish appro-
surface of the metal panel is the criterion for failure.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5. Significance
2. Referenced Documents 5.1 Effective solid film lubricant coatings must adhere to
3 surfaces to provide adequate lubrication in applications with
2.1 ASTM Standards:
restricted access where fluid lubricants cannot easily be replen-
B209M Specification for Aluminum and Aluminum-Alloy
ished. Loss of coating adhesion results in metal to metal
Sheet and Plate (Metric)
contact causing significant wear of contacting surfaces. Adhe-
D1000 Test Methods for Pressure-Sensitive Adhesive-
sion is critical to the performance of the solid film lubricant.
Coated Tapes Used for Electrical and Electronic Applica-
Examples of solid film lubricant applications include fasteners,
tions
bearings and sliding members in automotive, aircraft, and
D1193 Specification for Reagent Water
aerospace hardware.
D1730 Practices for Preparation of Aluminum and
5.2 This test method is intended to determine the adhesion
Aluminum-Alloy Surfaces for Painting
of solid film lubricant coatings when submitted to contact with
D3330/D3330M Test Method for Peel Adhesion of
water and other fluids. Results of this test provide an indication
Pressure-Sensitive Tape
of the suitability of the lubricant coating in applications where
F22 Test Method for Hydrophobic Surface Films by the
contact with water or other fluids is likely.
Water-Break Test
2.2 U.S. Military Specification:
6. Apparatus
MIL-L-46010
6.1 Rubber Covered Steel Roller—Asteel roller, 82.6 6 2.5
mm (3.25 6 0.1 in.) in diameter and 44.5 6 1.3 mm (1.75 6
3. Terminology
0.05 in.) in width, covered with rubber approximately 6.4 mm
3.1 Definition :
( ⁄4 in.) in thickness having a durometer hardness of 80 6 5.
The weight of the roller proper which applies pressure to the
specimen shall be 2.04 6 0.05 kg (4.5 6 0.1 lb). It shall be so
This test method is under the jurisdiction of ASTM Committee D02 on
constructed that the weight of the handle is not added to the
Petroleum Products and Lubricants and is the direct responsibility of Subcommittee
D02.L0.05 on Solid Lubricants.
weight of the roller during use.
Current edition approved Nov. 1, 2006. Published December 2006. Originally 5
6.2 Stylus, or equivalent.
approved in 1966. Last previous edition approved in 1998 as D2510 – 94 (1998).
6.3 Oven, forced-circulation, capable of maintaining 149 6
DOI: 10.1520/D2510-94R06.
Refer to U. S. Military Specification MIL-L-46010–March 4, 1988. 5.5°C (300 6 10°F).
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.4 Micrometer, reading 0 to 25 6 0.0025 mm (0 to 1 6
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
0.0001 in.) with a 1-ball anvil.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS. The stylus shall be L. S. Starrett Scratch Gage No. 29 or equivalent.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
D2510–94 (2006)
7. Reagents and Materials 9.3 Using the stylus, make two parallel scratches 25 mm (1
in.) apart on the panels (within 1 min after drying). Scratches
7.1 Test Panels, of aluminum alloy 2024 (conforming to
shall be through the films (break through), parallel to long
Specification B209M, approximately 75 by 150 by 0.5 mm (3
dimension of panel, and pass through both the water-immersed
by 6 by 0.020 in.) thick, anodized in accordance with Practices
section and dry section.
D1730, Type C, Method 2, chromic acid coatings.
9.4 Place a piece of masking tape lightly over the panel,
7.2 Tape, Masking, 25 mm (1 in.) wide, made of paper
perpendicular to the scratches, and press the tape down with
(pressure-sensitive) with an adhesive strength of at least 28
two passes of
...

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