FORD WSE-M8G240-A-2012 GASKET NON-ASBESTOS WITH NITRILE RUBBER BINDER TO BE USED WITH FORD WSS-M99P1111-A .pdf
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1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Changes 2012 05 09 N Status No usage or replacement N. Benipal, NA 1997 07 16 Activated Reactivated; Updated K. Gerhards 1991 09 11 NE01E10127076023 Released E. J. Duda WP 3948-a Page 1 of 4 GASKET, NON-ASBESTOS WITH
2、NITRILE RUBBER BINDER WSE-M8G240-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a general purpose gasket material fabricated from a non-asbestos reinforcing compound with nitrile rubber. 2. APPLICATION This specification was released originally for material re
3、quiring good fuel, oil, coolant, water resistance, and good dimensional stability for such applications as water pump front covers and intake manifold gaskets where low to moderate flange loading is required. 3. REQUIREMENTS 3.1 QUALITY SYSTEM REQUIREMENTS Material suppliers and part producers must
4、conform to Quality System Requirements, QS-9000. Material specification requirements are to be used for initial qualification of materials. A Control Plan for ongoing production verification is required. This plan must be reviewed and approved by the relevant Ford Materials activity and/or Ford Supp
5、lier Technical Assistance (STA) prior to production parts submission. Appropriate statistical tools must be used to analyze process/product data and assure consistent processing of the materials. Part producers using this material in their products, must use Ford approved materials and must conform
6、to a process control plan which has been approved by STA and/or the relevant Materials Activity. 3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS Ford Motor Company, at its option, may conduct infrared and/or thermal analysis of material/parts supplied to this specification. The IR spectra and
7、 thermograms established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce IR spectra and thermograms that correspond to the reference standard when tested under the same conditions. ENGINEERING MAT
8、ERIAL SPECIFICATION WSE-M8G240-A WP 3948-b Page 2 of 4 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same c
9、onditions unless otherwise specified. 3.4 ORIGINAL PROPERTIES 3.4.1 Density 1.16 to 1.38 g/cm3 (ISO 1183/ASTM D 297) 3.4.2 Tensile Strength, min 13.0 MPa (ASTM F 152, Method C) 3.4.3 Compressibility 13 to 25 % (ASTM F 36, Procedure A) 3.4.4 Recovery, min 40 % (ASTM F 36, Procedure A) 3.5 SEALABILITY
10、, max 4.5 mL/h (ASTM F 37, 6.9 MPa flange load, 101.3 kPa internal pressure) 3.6 CREEP RELAXATION, max 44 % (ASTM F 38, Method B, 0.76 mm thick test specimens, 22 h at 125 +/- 2 C) 3.7 ADHESION AND CORROSION TBD (FLTM BV 123-01) 3.8 DIMENSIONAL STABILITY, max (ASTM F 1087) 3.8.1 Low Humidity % Chang
11、e, max (5 h at 100 +/- 2 C) AMD 0.38 MD 0.20 3.8.2 High Humidity % Change, max (22 h in water at 23 +/- 2 C) AMD 1.50 MD 0.60 3.9 HEAT AGING (ISO 188/ASTM D 573, 22 h at 125 +/- 2 C) 3.9.1 Compressibility 9 to 21 % (ASTM F 36, Procedure A) 3.9.2 Recovery, min 40 % (ASTM F 36, Procedure A) 3.9.3 Weig
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