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 entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro
2、m, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.QUESTIONS REGARDING THIS DOCUMENT: (724) 772-8512 FAX: (724) 776-0243TO PLACE A DOCUMENT
3、 ORDER; (724) 776-4970 FAX: (724) 776-0790SAE WEB ADDRESS http:/www.sae.orgCopyright 1991 Society of Automotive Engineers, Inc.All rights reserved. Printed in U.S.A.SURFACEVEHICLE400 Commonwealth Drive, Warrendale, PA 15096-0001RECOMMENDEDPRACTICESubmitted for recognition as an American National Sta
4、ndardJ2215ISSUEDDEC91Issued 1991-12SURFACE MATCH VERIFICATION METHOD FOR PRESSURE SENSITIVEADHESIVELY ATTACHED COMPONENTSForewordThis Document has not been changed other to put it into the new SAE Technical Standards BoardFormat.This SAE Recommended Practice has been developed by the SAE Mounting Ta
5、pe Subcommittee of the SAEDecorative Tape and Molding Committee. The Mounting Tape Subcommittee was formed in 1984. The objectivesof this committee are to develop SAE Standards, Recommended Practices, and Information Reports relative toautomotive applications of decorative tapes and adhesive mountin
6、g tapes.1. ScopeThis SAE Recommended Practice applies to evaluation of the conformance match condition existingbetween two surfaces. Evaluation of this conformance may be especially useful in bonded applicationsalthough it may also have relevance to bolted adjacent surface joint conditions.Since goo
7、d bonding surface conformity is necessary for providing optimal bond performance with pressuresensitive adhesives, the purpose of this document is to provide a method of evaluating the conformance matchof the mating surfaces.This document is intended as a guide toward standard practice but may be su
8、bject to frequent change to keeppace with experience and technical advances. This should be kept in mind when considering the use of thisdocument.Tool types, materials, application tools, and component contact area evaluation methods are included as partof this document.In most cases a visual evalua
9、tion of contact performance may be satisfactory; however, for greater accuracy ameasurement tool may be used. When reporting a contact value the mode of evaluation (e.g., visual,measurement tool) should be indicated.1.1 PurposeThe purpose of this document is to establish a uniform practice for testi
10、ng the surface matchconformance which exists between two surfaces.2. ReferencesThere are no referenced publications specified herein.SAE J2215 Issued DEC91-2-3. Definitions3.1 Test SurfaceThe component surface applied to the CCS tool to evaluate match (moldings, nameplates,claddings, emblems, etc.).
11、3.2 Contact PatternSize, configuration, and location of contacted areas occurring within the test surface.4. Significance and UseThe adhesive contact demonstrated by the component applied to a clear surface is anexcellent indication of the degree of conformance existing between the component and its
12、 target surface.A components surface contacts a clear surface representation of the components mating surface duringapplication. This provides an index of the surface conformance match existing between the component and itstarget application area. In addition, these clear representative surfaces are
13、 useful for validating application toolcomponent placement processes.5. Apparatus5.1 Clear Coordinated Surface (CCS)A transparent polymer accurately representing a specific surface,providing an edge or outline scribe, (or equivalent) location index, and displaying test surface contacted anduncontact
14、ed areas.NOTETools may be constructed from Blehm BP-4228 or equivalent. Surfaces to be matched (e.g.,prototype, pilot, production, etc.) should be agreed upon by the participating parties.5.2 Measurement ToolSuch as a Compensating Polar Planimeter, or equivalent, is used for measurement ofcontacted
15、and uncontacted areas.6. ConditioningAt the time of application, test surface, CCS tool surface, as well as surrounding ambienttemperatures shall be 23 C 2 C (72 F 4 F).7. Procedure7.1 Tool Surface PreparationImmediately prior to application clean CCS tool surface with a clean lintfree clothmoistene
16、d with isopropyl alcohol.NOTEFor repeated use and ease of repositioning, CCS tool application surface may be treated using amaterial such as Johnson Paste Wax, or equivalent. Surface treatments must not adversely affect toolclarity or component contact.Contamination of component or tool mating surfa
17、ces at any time throughout the component applicationstage is considered unacceptable.7.2 ComponentLoose Application MethodImmediately prior to application, remove any release liners fromthe component and loose apply (plant on) the component to the tool assuring proper alignment with indexing oralign
18、ing features.7.3 PressurizationUsing a 4.5 kg (10 lb) roller, make two passes at an approximate rate of 50 mm/s (2 in/s)along the central axis of any contact surfaces, through the component center, or as agreed upon by theparticipating parties.NOTEAssure any pressurizing device is guided along as fr
19、eely as possible avoiding any additional normalforces. Roller rates and paths taken on the component surface must remain as consistent as possiblebetween application in order to minimize contact pattern effects. Avoid imposing any additional weighton the applied component (weight of tool, etc.) prio
20、r to measurement of contact pattern.SAE J2215 Issued DEC91-3-7.4 Tool Surface Contact EvaluationObserve the test surface through the tool, distinguishing contacted fromuncontacted areas. Note the contact pattern.7.5 Measurement of Contact SurfaceWithin 60 min of application of component to tool, cal
21、culate thepercentage of contact area by using the following formula:(Eq. 1)NOTEMeasurement directly to the CCS tool surface or a photograph is considered acceptable.7.6 Component RemovalAvoid damaging the tool surface during removal.PREPARED BY THE SAE MOUNTING TAPE SUBCOMMITTEE OF THE SAE DECORATIV
22、E TAPE AND MOLDING COMMITTEETotal Contacted AreaTotal Available Mating Surface Area- 100% % Contact=SAE J2215 Issued DEC91RationaleManufacturers have experienced difficulty in quantifying the free state match or contact occurringbetween mating components. There have been no consistently accurate tes
23、ting methods available forevaluating this component contact. While there has been wide acceptance of the use of applied filmsand dyes, no real defined or consistent testing methods were available for addressing this surfacecontact. Consequently, surface match checks and quality checks based upon the
24、se tests were notdependable. In addition, these methods did not effectively permit tuning of component surfaces at initialfabrication stages. This could provide a fitted surface from every manufactured component permittingsurface contact to be more effectively controlled.Relationship of SAE Standard
25、 to ISO StandardNot applicable.ApplicationThe purpose for this SAE Recommended Practice is to provide a consistent method fordetermining actual surface conformance.Reference SectionThere are no referenced publications specified herein.Developed by the SAE Mounting Tape SubcommitteeSponsored by the SAE Decorative Tape and Molding Committee
