1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Released1994 01 05 NEO1E10127076110 Revised and Updated E.J. Duda1993 04 05 NEO1E10127076085 Revised and Updated E.J. Duda1985 01 22 CE3PRD863100E142 Released E.J. DudaWP 3948-a Page 1 of 4 GASKET, ASBESTOS FREE MI
2、NERAL REINFORCING ESE-M8G180-ACOMPOUNDS AND SYNTHETIC RUBBER1. SCOPEThe ma terial defined by this specification is a gasketing materialcom prised of asbestos free mineral reinforcing compounds in combinationwith synthetic elastomeric binders.2. APPLICATIONThis specification was released originally f
3、or material requiring moderateto high flange loads to seal against internal pressures at moderatetemperatures, such as the intake manifold gasket.3. REQUIREMENTSAll tests shall be conducted in accordance with ASTM F 104 Type 7 materialunl ess otherwise specified. Test specimens are to be selected fr
4、omfinished gaskets when practicable.3.1 ORIGINAL PROPERTIES (All thicknesses)3.1.1 Tensile Strength, min 7.6 MPa3.1.2 Compressibility at 34.5 MPa 15 to 30 %3.1.3 Recovery, min 40 %3.2 HEAT AGING (All thicknesses)(22 h at 150 +/- 3 C)3.2.1 Weight change, max - 2 %3.2.2 Compressibility at 34.5 MPa 5 t
5、o 15 %3.2.3 Recovery, min 50 %Test Method: Place 3 weight change samples 25 x 50 mm xsamp le thickness and 3 tensile change 13 x 100 mm x samplethickness or any sample size which is practicabl e between 100x 125 x 13 mm steel pla tes. Place in furnace set at 150 +/-3 C for 22 h.ENGINEERING MATERIAL
6、SPECIFICATIONESE-M8G180-AWP 3948-b Page 2 of 4 3.3 IMMERSION IN LIQUIDS(Only thickness of 0.8 - 1.6 mm apply)3.3.1 ASTM #1 Oil(5 h at 150 +/- 3 C)Thickness Change 0 to + 4 %Tensile Strength Change, max - 20 %3.3.2 ASTM #3 Oil(5 h at 150 +/- 3 C)Thickness Change 0 to + 5 %Tensile Strength Change, max
7、 - 20 %3.3.3 ASTM Fuel C(5 h at 23 +/- 2 C)Thickness Change 0 to + 15 %Tensile Strength Change, max - 50 %3.3.4 ASTM Fuel C 80 % and Ethanol 20 %(5 h at 23 +/- 2 C)Thickness Change 0 to + 20 %Tensile Strength Change, max - 75 %3.3.5 ESE-M97B44-A Coolant & Water 50/50(24 h at boiling)Thickness Change
8、, max + 15 %Tensile Strength Change, max - 70 %3.4 CREEP RELAXATION, max 40 %(ASTM F 38, Method B, 22 h at 150 C,0.78 mm thick only)3.5 DENSITY 1200 - 1400 kg/m33.6 SEALABILITY, max(ASTM F 37, 760 mm Hg, 1.7 MPa)Thickness. 0.78 +/- 15 mm 15 mL/h. 1.14 +/0 20 mm 22 mL/h3.7 IGNITION LOSS 33 to 43 %(AS
9、TM F 495)ENGINEERING MATERIAL SPECIFICATIONESE-M8G180-AWP 3948-b Page 3 of 4 3.8 SURFACE COATING Must not stick or show anyevidence of corrosion. Metal Plates. Aluminum to Aluminum. Aluminum to Steel. Steel to SteelTest Method: A 15.9 mm I.D. x 38.1 mm O.D. test specimen is clampedbetween 2 discs of
10、 13.5 mm I.D. x 51 mm O.D. metal plates (maximumthickness 1.57 mm) backed by 12.7 mm steel plates. A 12.7 mm steelbolt is inserted through the hole and a nut put on it. Tighten thebolt to 79 N.m. Heat the assembly to 149 +/- 3 C for 5 h. Removeand allow to cool to room temperature. The specimen shal
11、l come offthe m etal plates without tearing and the metal plates must show noevidence of corrosion.3.9 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
12、 thermograms established for i nitial approval shallconst 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.3.10 STATISTICAL
13、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 approval. Appropriatestatist ical tools must be used to analyze process/product data sothat variation in the final product
14、is continuously reduced.3.11 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification 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 labelin
15、g of the materialorig inally approved under this specification, whether or not suchchange s affect 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 writt
16、en approval of the Materials Engineeringactivity. Test data, t est samples and a new code identification 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 Materi
17、al Specification WSS-M99P9999-A1.ENGINEERING MATERIAL SPECIFICATIONESE-M8G180-AWP 3948-b Page 4 of 4 4. APPROVAL OF MATERIALSMat erials defined by this specification must have prior approval by theresp onsible Materials Engineering activity. Suppliers desiring approvalof thei r materials shall first
18、 obtain an expression of interest from theaffec ted Purchasing, 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
19、 test faci lity, demonstratingful l compliance with all the 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.
