1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Action Changes1990 07 11 DE00E00107002060 3.6 Revised; SSP Added J. Huebner1986 08 22 CF4Q-RD888002430 3.3, 3.6 Revised1980 12 12 CF4K-RD576983-14 Released (Was XF-M*GX16)WP 3948-a Page 1 of 3 GASKET, NON-ASBESTOS, NITRILE RUB
2、BER ESF-M8G158-A1. SCOPEThe material defined by this specification is a sheet of non-asbestosrein forcing materials and nitrile rubber, highly compressed to producemaximum density and relatively impervious structure.2. APPLICATIONThis specification was released originally for material used whereresi
3、st ance to high temperature and good recovery characteristics arerequired, i.e., gasket for the windshield wiper motor.3. REQUIREMENTSAll tests and conditioning shall be conducted in accordance with ASTM F104, type 1, class 1, unless otherwise specified.3.1 COMPRESSIBILITY 15 - 30 %(ASTM F 36, 34.5
4、MPa load)Recovery, min 35 %3.2 TENSILE STRENGTH, min 10.3 MPa(ASTM F 152, Method A)3.3 IMMERSION IN LIQUIDS(ASTM F 146)TensileThickness Weight StrengthChange, Change, Loss, Compress-Immersion Fluid Test Conditions max max max abilityASTM Oil No. 1 5 h, 149 +/- 1 C 13 % - 30 % 0 - 35 %ASTM Oil No. 3
5、70 h, 100 +/- 1 C 25 % - 40 % -ASTM Fuel B 70 h, 21 - 30 C 20 % - - -Motorcraft 70 h at boiling 30 % 55 % - -Anti-Freeze &Water (50/50)Water 70 h, 100 +/- 1 C 28 % - -ENGINEERING MATERIAL SPECIFICATIONESF-M8G158-AWP 3948-b Page 2 of 3 3.4 FLEXIBILITY FACTOR F Must pass test(ASTM F 147)As Received 16
6、Oven Aged 20(70 h at 100 +/- 1 C)Oil Aged 24(ASTM Oil No. 1, 5 h at 149 +/- 1 C)3.5 COMPRESSION SET, max 15 %(ASTM D 395, Method A, 22 h at 70 +/- 1 C)3.6 HEAT AGED(ASTM D 573, 22 h at 149 +/- 1 C)Compressibility Change, max - 60 %Recovery Change +/- 15 %Thickness Change +/- 6 %All tests performed o
7、n samples preconditioned 1 h at 100 +/- 1 C,cooled to room temperature in a desiccator over calcium chloride.3.7 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/sourc
8、e approval. Appropriatestatist ical tools must be used to analyze process/product data sothat variation in the final product is continuously reduced.3.8 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inal l characteristics to the material upon which approval
9、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 affect the materials ability to meet the specificationrequir ements, the Supplier sh
10、all 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 identification areto be submitted with the request.Substance restrictions imposed by l
11、aw, 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 the engineeringdocument for the application.ENGINEERING MATERIAL SPECIFICATIONESF-M
12、8G158-AWP 3948-b Page 3 of 3 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 Purchasing, Design a
13、nd Materials Engineering activity. Uponrequest, the Supplier shall submit to the affected Materials Engineeringactivity its own laboratory rep ort to the specification (test results, notnominal values), the material designation and code number, and testspecim ens for Ford evaluation. Upon approval, the material will be addedto the Engineering Material Approved Source List.
