1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref
2、rom, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2016 SAE InternationalAll rights reserved. No part of this publi
3、cation may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE.TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada)Tel: +1 724-776-4970 (out
4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AS5528CAEROSPACESTANDARDAS5528 REV. CIssued 2005-07Revised 2016-06Superseding AS5528BLubrican
5、t Application, Solid Film, Heat Cured, Corrosion InhibitingRATIONALEThis is a limited scope change. Add requirements for alternate cure cycles (3.2.8) and delete outdated reference to MIL-DTL-16232. 1. SCOPEThis SAE Aerospace Standard (AS) establishes the surface pretreatment, temperature, and bakin
6、g time required to cure AS5272 lubricant when it is applied over the surfaces of manufactured parts of various metals.2. APPLICABLE DOCUMENTSThe following publications form a part of this document to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue
7、of other publications shall be the issue in effect on the date of the purchase order. In theevent of conflict between the text of this document and references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unles
8、s a specific exemption has been obtained.2.1 SAE PublicationsAvailable from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org.AS5272 Lubricant, Solid Film, Heat Cured, Corrosion Inhibiting, Pr
9、ocurement SpecificationAS8879 Screw Threads - UNJ Profile, Inch Controlled Radius Root with Increased Minor DiameterAMS2488 Anodic Treatment - Titanium and Titanium Alloys Solution pH 13 or HigherAMS-QQ-P-416 Plating, Cadmium (Electrodeposited)SAE INTERNATIONAL AS5528C Page 2 of 62.2 ASTM Publicatio
10、nsAvailable from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM D1125 Standard Test Methods for Electrical Conductivity and Resistivity of WaterASTM D1732 Standard Practices for Preparation of Magnesium Alloy Surfaces
11、for PaintingASTM D2510 Standard Test Method for Adhesion of Solid Film LubricantsASTM D3735 Standard Specification for VMP NaphthasASTM F22 Standard Test Method for Hydrophobic Surface Films by the Water-Break Test2.3 U.S. Government PublicationsCopies of these documents are available online at http
12、:/quicksearch.dla.mil.MIL-A-8625 Anodic Coatings, for Aluminum and Aluminum AlloysMIL-C-81302 Cleaning, Compound, Solvent, TrichlorotrifluoroethaneMIL-T-81533 Trichloroethane 1,1,1, (Methyl Chloroform) Inhibited, Vapor Degreasing3. REQUIREMENTS3.1 General Application Instructions for all MetalsDo no
13、t touch the pretreated surfaces with bare hands. Stir the lubricant until thoroughly mixed in accordance with manufacturers recommendation. A mechanical paint shaker may be used for AS5272 Types I and II, but is not recommended for AS5272 Type III as excessive foaming with waterborne products may oc
14、cur. Minor viscosity adjustments to AS5272 Type III may be made by adding deionized water. Any deionized water used shall have a resistivity not less than 1M: centimeter (M:cm), when tested in accordance with ASTM D1125. Ordinary tap water shall not be used. The grit blast machine and media shall be
15、 restricted to a single material application. Cross contamination between metal, machine and media shall not be allowed. Apply the lubricant by brushing, dipping, or spraying.3.2 Application pretreatment and cure requirements, unless otherwise specified on the drawing:3.2.1 Application on Aluminum a
16、nd Aluminum Alloys Preclean the surfaces to be coated with Aliphatic Naphtha conforming to ASTM D3735 or any environmentally safe cleaner that sufficiently cleans surfaces to meet the requirements of ASTM F22, and does not harm the surface.3.2.2 Application on Copper and Copper Alloys Preclean the s
17、urfaces to be coated with Aliphatic Naphtha conforming to ASTM D3735 or any environmentally safe cleaner that sufficiently cleans surfaces to meet the requirements of ASTM F22 and does not harm the surface. Abrasive-blast the surfaces with 180 to 220 grit clean aluminum oxide.3.2.3 Application on Ma
18、gnesium and Magnesium AlloysPreclean the surfaces to be coated with Aliphatic Naphtha conforming to ASTM D3735 or any environmentally safe cleaner that sufficiently cleans surfaces to meet the requirements of ASTM F22 and does not harm the surface.SAE INTERNATIONAL AS5528C Page 3 of 63.2.4 Applicati
19、on on SteelPreclean the surfaces to be coated with Aliphatic Naphtha conforming to ASTM D3735 or any environmentally safe cleaner that sufficiently cleans surfaces to meet the requirements of ASTM F22 and does not damage the surface. Abrasive-blast the surface with 180 to 220 grit aluminum oxide.3.2
20、.5 Application on Stainless SteelsPreclean the surfaces to be coated with Aliphatic Naphtha conforming to ASTM D3735 or any environmentally safe cleaner that sufficiently cleans surfaces to meet the requirements of ASTM F22 and does not harm the surface. Abrasive-blast the surfaces with 180 to 220 g
21、rit aluminum oxide.3.2.6 Application on Titanium and Titanium AlloysPreclean the surfaces to be coated with Aliphatic Naphtha conforming to ASTM D3735 or any environmentally safe cleaner that sufficiently cleans surfaces to meet the requirements of ASTM F22 and does not harm the surface. Unless othe
22、rwise specified, abrasive-blast the surface with 180 to 220 grit aluminum oxide or alkaline anodize per AMS2488, Type 2.3.2.7 Application on Cadmium Plated Substrate MetalFilm adhesion, (reference 3.5) is dependent on the active surface. Application of AS5272 should take place as soon as possible af
23、ter plating.3.2.8 CurePermit the coated parts to air dry for at least 30 minutes (or flash cure at 149 to 174 F (65 to 79 C) for 10 to 30 minutes) to assure complete removal of solvent or water. Bake the part so that the coated surface remains at 400 F 27 F (204 C 15 C) for at least 1 hour at temper
24、ature for AS5272 Types II and III, or 302 F 27 F (150 C 15 C) for at least 1 hour at temperature for AS5272 Type I, or 2 hours at temperature for AS5272 Type III, unless otherwise specified by the manufacturer in writing, but not to exceed 350 F for types requiring the lower temperature cure. Altern
25、ate cure cycles cannot be used on temperature sensitive substrates that would be annealed or otherwise adversely affected by a higher temperature cure. The curing time shall be counted from the time the part reaches the cure temperature, not when the part is first subjected to heat.3.3 Film Appearan
26、ceThe bonded solid film lubricant, when examined as specified in 4.5, shall be uniform in color, smooth, free from any cracks, scratches, pinholes, blisters, bubbles, runs, sags, foreign matter, grit, or rough particles.3.4 Film ThicknessThe average film thickness, based on six readings minimum, of
27、the cured film for all types shall be between 0.0003 and0.0005 inches, with no single reading less than 0.0002 inches or greater than 0.0007 inches, except as noted in 3.4.1 and 3.4.2.3.4.1 Internally Threaded ComponentsFor internally threaded fasteners (e.g., nuts, inserts), the cured film for all
28、types shall show complete coverage in the threaded area with no requirement for thickness verification other than visual. The coated internal threads shall permit a minimum free rotation of three-quarters turn on a corresponding mating bolt.3.4.2 Externally Threaded ComponentsFor externally threaded
29、 fasteners (e.g., bolts, studs), the cured film for all types shall show complete coverage with no requirement for thickness verification other than visual in the threaded area. The coated external threads shall permit a minimum free rotation of three-quarters turn on a corresponding mating nut or r
30、ing gage (GO).SAE INTERNATIONAL AS5528C Page 4 of 63.5 Film AdhesionThe bonded solid film lubricant, when tested as specified in Table 1 and 4.7, shall not be lifted to expose any bare metal surface. For threaded fasteners, the coating shall be continuously bonded to the fastener and shall not displ
31、ay loss of adhesion or separation from the fastener when examined at a magnification of 4X.4. QUALITY ASSURANCE PROVISIONS4.1 Responsibility for InspectionThe applicator is responsible for performing all inspection requirements as specified herein. Except as otherwise specified in the contract or pu
32、rchase order, and unless disapproved by the purchaser, the applicators own or any other facilities suitable for the performance of the inspection requirements specified herein, may be used. The purchaser reserves the right to perform any of the inspections set forth in this specification where such
33、inspections are deemed necessary to assure supplies and services conform to the prescribed requirements.4.1.1 Responsibility for ComplianceAll items shall meet all requirements of Section 3. The inspection set forth in this specification shall become part of the manufacturers overall inspection syst
34、em or quality program. The absence of any inspection requirements in this specification shall not relieve the manufacturer of the responsibility of assuring that all products or supplies submitted to the purchaser for acceptance comply with all requirements of the contract or purchase order. Samplin
35、g in quality conformance does not authorize submission of known defective material, either indicated or actual, nor does it commit the procuring activity to acceptance of defective material.4.2 Quality Conformance InspectionThe quality conformance inspection shall consist of all the tests specified
36、in Table 1. Inspections shall be performed on manufactured parts. Except coupons may be used for testing when configuration prohibits testing of parts.4.3 Inspection Conditions4.3.1 Atmospheric ConditionsUnless otherwise specified, all examinations and tests shall be performed at a temperature of 77
37、 F 5 F (25 C 3 C) and at a relative humidity between 30 and 70%.4.4 Methods of InspectionMethods of inspection shall be in accordance with Table 1 and 4.5 through 4.7.Table 1 - Quality inspection testsCharacteristicTest MethodsASTMRequirementParagraphFilm AppearanceFilm ThicknessFilm Adhesion4.54.6A
38、STM D25101Procedure A(except as noted in 4.7)3.33.43.51When performing ASTM D2510 test method, use Aliphatic Naphtha conforming to ASTM D3735 followed by acetone or any environmental safe cleaner that sufficiently cleans surfaces to pass ASTM F22 (MIL-C-81302, Trichlorotrifluoroethane, or MIL-T-8153
39、3, 1,1,1-Trichloroethane are not acceptable cleaners for testing or production).SAE INTERNATIONAL AS5528C Page 5 of 64.5 Film AppearanceThe bonded solid film lubricated parts shall be examined visually and microscopically at magnification of 12 to 15X and meet the requirements of 3.3.4.6 Film Thickn
40、essFilm thickness is determined after the parts have been completely cured. The thickness of the film shall meet the requirements of 3.4 except as noted in 3.4.1 and 3.4.2.4.7 Film AdhesionThe lubricated parts shall meet the adhesion requirements of 3.5 when tested per Table 1 and 4.7.1.4.7.1 Thread
41、ed FastenersApply a length of 1 inch wide tape per 4.7.2 to the shank of an externally threaded fastener or the bearing surface of an internally threaded fastener. Remove the tape with a quick motion and examine tape and part for lifting of the coating from the shank or bearing surface. A uniform de
42、posit of powdery material may cling to the tape, but the lifting of any flakes or particles of the lubricant, which exposes a base metal surface on the part shall be cause for rejection4.7.2 TapeTape for film adhesion test shall be 3M Company No. 250 tape (or equivalent (i.e., 1 inch wide, paper bac
43、ked, pressure sensitive masking tape, with an adhesive strength greater than or equal to 25 ounce/inch when tested in accordance withASTM D3330/D3330M procedure A). The tape shall be no older than 6 months from the date of manufacturing if stored in an uncontrolled environment. The tape shall be no
44、older than 1 year from the date of manufacture if maintained indoors in a controlled environment of 40 to 90 F and 10 to 70% relative humidity.5. USE LIMITATIONS5.1 Engineering TolerancesThe operating thickness of this lubricant averages from 0.0003 to 0.0005 inches per lubricated surface. This thic
45、kness seldom requires alteration of established clearances between moving parts. There is one exception. The lubricant coating thickness must be considered in the case of small parts that normally operate with very little clearance. The cured lubricant film is relatively soft and any interference pr
46、oduced by the thickness of the lubricant will cause rapid wear of the lubricantfilm to the point where interference is eliminated.5.2 ApplicationAS5272 lubricant shall be applied in accordance with this specification and manufacturers recommended practices over surfaces that have been pretreated in
47、accordance with this specification, unless otherwise specified in the contract or purchase order.6. ACKNOWLEDGMENTAn applicator shall mention this specification number in all quotations when acknowledging contract or purchase orders.7. REJECTIONSCoated parts not conforming to this specification shal
48、l be subject to rejection.SAE INTERNATIONAL AS5528C Page 6 of 68. NOTESNOTICEThis document references a part which contains cadmium as a plating material. Consult local officials if you have questions concerning cadmiums use.8.1 Revision IndicatorA change bar (l) located in the left margin is for th
49、e convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only.PREPARED BY SAE CO
