1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Action Changes1991 11 20 NE01E10127076030 Revised 3.3.3, Updated E. J. Duda1988 03 09 NE01E10000474005 3.3.2, 3.3.4 Rearranged/Retyped E.J. Duda1986 01 23 CE3QRD863100E192 ReleasedWP 3948-a Page 1 of 3 GASKET, PERFORATED STEEL
2、 CORE, COMPRESSED ESE-M8G201-AGRAPHITE SHEET1. SCOPEThe material defined by this specification consists of a perforated lowcarbon steel core covered equal ly on both sides with a compressed graphitesheet.2. APPLICATIONThis specification was released originally for material used on engines asa cylind
3、er head gasket, where high compressive strength and hightemperature resistance is required.3. REQUIREMENTS3.1 STATISTICAL PROCESSSupplie rs must conform to the requirements of Ford Quality SystemStand ard Q-101. A mutually acceptable Control Plan as describedtherein is required for material/source a
4、pproval. Appropriatestatist ical tools must be used to analyze process/product data sothat variation in the final product is continuously reduced.3.2 CONSTRUCTIONThe gasket consists of a perforated low carbon steel core with amaterial consisting of compressed graphite glued and/or mechanicallybonded
5、 to each side of the core. Grommets of rustless steel, copperor carbon steel are used as required.3.2.1 Metal CoreTin plate or low carbon steel. Thickness and pe rforations asspecified on engineering drawings.3.2.2 FabricationTh e compressed graphite sheet shall be plied uniformly andbonded to each
6、side of the metal core to meet re quirements ofthe a pplication, the thickness as specified on engineeringdrawing.ENGINEERING MATERIAL SPECIFICATIONESE-M8G201-AWP 3948-b Page 2 of 3 3.3 FINISHED GASKETAll tests shall be conducted in accordance with ASTM F 104, Type 5materials, unless otherwise speci
7、fied.3.3.1 Immersion in LiquidsDistilled Water 22 h at boilingPermanent Antifreeze 48 h at boilingAfter immersion in above fluids, as specified, the graphiteshall be firm and must not separate from the steel core.3.3.2 Original PropertiesCompressibility(ASTM F 36, 34.5 MPa load)Facing Thickness One
8、Side After Processing0.508 and larger 20 to 38 %Less than 0.508 11 to 27 %Recovery, min 18 %3.3.3 Fluid Immersion Thickness WeightChange ChangeASTM No. 1 Oil 0 to + 12 % 0 to + 26 %(5 h at 150 +/- 2 C)ASTM No. 3 Oil 0 to + 12 % 0 to 28 %(5 h at 150 +/- 2 C)ASTM Fuel B 0 to + 10 % 0 to + 25 %(5 h at
9、23 +/- 2 C)3.3.4 Air Aging(22 h at 535 +/- 5 C)CompressibilityFacing Thickness One Side After Processing0.508 and larger 20 to 35 %Less than 0.508 12 to 27 %Recovery, min 20 %Weight Change, max 0 to - 6 %3.3.5 Creep Relaxation, max 15 %(ASTM F 38, Method B, 22 h at 150 +/- 2 C)ENGINEERING MATERIAL S
10、PECIFICATIONESE-M8G201-AWP 3948-b Page 3 of 3 3.4 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSISFord Motor Company, at its option, may conduct infrared and/ortherma l analysis of material/parts supplied to this specification.The IR spectra and thermograms established for i nitial approval shallc
11、onst itute the reference standard and shall be kept on file at thedesignated material laboratory. All samples sha ll produce IR spectraand thermograms that correspond to the reference standard when testedunder the same conditions.3.5 SUPPLIERS RESPONSIBILITYAll materials supplied to this specificati
12、on must be equivalent inal l characteristics to the material upon which approval wasoriginally granted.Pri or to making any change in the properties, composition,constr uction, color, processing or labeling of the materialorig inally approved under this specification, whether or not suchchange s aff
13、ect the materials ability to meet the specificationrequir ements, the Supplier shall notify Purchasing, Toxicology andthe affected Materials Engineering activity of the proposed changesand obtain the written approval of the Materials Engineeringactivity. Test data, t est samples and a new code ident
14、ification areto be submitted with the request.Substance restrictions imposed by law, regulations or Ford, apply tothe materials addressed by this document. The restrictions aredefined in Engineering Material Specification WS S-M99P9999-A1, unlessa different suffix (e.g., A2 or A3) is specified on th
15、e engineeringdocument for the application.4. APPROVAL OF MATERIALSMat erials defined by this specification must have prior approval by theresponsible Materials Engineeri ng activity. Suppliers desiring approval ofthe ir materials shall first obtain an expression of interest from theaffec ted Purchas
16、ing, Design and Materials Engineering activity. Uponrequest, the Supplier shall submit to the affected Materials Engineeringactivity a completed copy of their laboratory test reports, signed by aqualified and authorized representative of the test faci lity, demonstratingful l compliance with all the
17、 requirements of this specification (testresults, not nominal values), the material designation a nd code number, andtes t specimens for Ford evaluation. Fords engineering approval of amateri al will be based on its performance to this specification and on anassessment of suitability for i ntended processes and/or applications. Uponapprov al, the material will be added to the Engineering Material ApprovedSource List.
