1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Released1994 06 30 C10348598 Released P. ThomasWP 3948-a Page 1 of 5 POLYURETHANE FILM, SEATING APPLICATIONS WSD-M99H134-B1WSD-M99H134-B21. SCOPEThe materials defined by this specification are polyester polyurethan
2、efilms.WSD-M99H134-B1 is a flame-bondable laminate film.WSD-M99H134-B2 is a heat-sealing film.2. APPLICATIONWSD-M99H 134-B1: This material was released originally as a sealingmembrane on car seat cushion assemblies.WSD-M99H134-B2: This material was released originally to heat-seal jointsin dual fabr
3、ic seat applications - it allows the jointed fabrics to bevacuum formed and moulded.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 approval
4、. Appropriatestatist ical tools must be used to analyze process/product data sothat variation in the final product is continuously reduced.3.2 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSISFord Motor Company, at its option, may conduct infrared and/ortherma l analysis of material/parts supplied
5、to this specification.The IR spectra and 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 testedund
6、er the same conditions.3.3 CONDITIONING AND TEST CONDITIONSAll test values indicated herein are based on ma terial conditioned ina controlled atmosphere of 23 +/- 2 C and 50 +/- 5% relative humidityfor not less than 24 h prior to testing and tested under the sameconditions unless otherwise specified
7、.ENGINEERING MATERIAL SPECIFICATIONWSD-M99H134-B1/B2WP 3948-b Page 2 of 5 3.4 APPEARANCEColourless, clear or as specified on Engineering Drawings.3.5 REQUIREMENTS (WSD-M99H134-B1)3.5.1 Thickness 0.040 +/- 0.005 mm(ISO 4593/DIN 53370) Or as specified on EngineeringDrawing3.5.2 Tensile Strength, min(F
8、LTM BN 150-04Test speed 200 mm/minuteGauge length 50 mm)WMD 45 MPaAMD 30 MPa3.5.3 Elongation at Break,(FLTM BN 150-04, test speed200 mm/minute, gauge length 50 mm)WMD 250 %AMD 350 %3.5.4 Modulus at 50 % Elongation(FLTM BN 150-04, test speed200 mm/minute, gauge length 50 mm)WMD 6 - 13 MPaAMD 5 - 12 M
9、Pa3.5.5 Tear Resistance, min(ISO 34 Die B Nicked,test speed 200 mm/minute)WMD 50 kN/mAMD 65 kN/m3.5.6 Water Vapour Permeability, min 96 g/m2 per 24 h(ASTM E 96 Desiccant Method at38 C and 80 % relative humidity)3.6 REQUIREMENTS (WSD-M99H134-B2)3.6.1 Thickness Tolerances +/- 15 %(ISO 4593/DIN 53370)
10、As specified on EngineeringDrawingENGINEERING MATERIAL SPECIFICATIONWSD-M99H134-B1/B2WP 3948-b Page 3 of 5 3.6.2 Tensile Force at Break, min(FLTM BN 150-04, test speed200 mm/minute, gauge length 50 mm)WMD 50 NAMD 40 N3.6.3 Tear Resistance Force, min(ISO 34 Die B Nicked,test speed 200 mm/minute)WMD 3
11、.5 NAMD 3.5 N3.6.4 Width Tolerances +/- 10 %As specified on EngineeringDrawing3.7 FOGGING(FLTM BO 116-03, 3 h at 100 +/- 2 C)Fog Number, min 80Formati on of a clear film, droplets or crystals is cause forrejection.3.8 MOULDABILITYThe laminate film must be suitable for flame bonding to a polyesterpo
12、lyurethane foam. It shall be sufficiently free from defects toallow vacuum forming of the laminated fabric and shall be capable ofresisting foam penetration during the moulding process.The heat-sealing film must be suitable for therm ocompression moulding(heat-sealing) and must be compatible with th
13、e flame bondablelaminate film under pro duction conditions. The seam so formed shallallow vacuum-forming an d foam-backing of dual fabrics that have beenstitched together.3.9 FLAMMABILITY(ISO 3795/SAE J369)Burn Rate, max 100 mm/minuteNote: The film will not be tested separately from thetextile/foam/
14、film laminate of which it forms an integral part.3.10 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inal l characteristics to the material upon which approval wasoriginally granted.ENGINEERING MATERIAL SPECIFICATIONWSD-M99H134-B1/B2WP 3948-b Page 4 of 5 Pri
15、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 shall notify Purchasing, Tox
16、icology 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 law, regulations or Ford, a
17、pply tothe materials addressed by this document. The restrictions aredefined in Engineering Material Specification WSS-M99P9999-A1.4. APPROVAL OF MATERIALSMat erials defined by this specification must have prior approval by theresp onsible Materials Engineering activity. Suppliers desiring approvalo
18、f thei r materials shall first 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 au
19、thorized representative of the 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
20、 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.5. GENERAL INFORMATIONThe information given below is provided for assistance and clarificat
21、ionand does not represent requirement(s) to this specification.5.1 HARDNESS, DUROMETER A (WSD-M99H134-B1 ONLY) 83 to 92 (ISO 868/ASTM D 2240, 15 s dwell)No te: The test shall be carried out on pressed, ungrained plainspecimens with a minimum thickness of 6 mm.ENGINEERING MATERIAL SPECIFICATIONWSD-M9
22、9H134-B1/B2WP 3948-b Page 5 of 5 5.2 SPECIFIC GRAVITY(ASTM D 792 Method A1)WSD-M99H134-B1: 1.21 +/- 0.035.3 INFORMATION (WSD-M99H134-B2)5.3.1 Thickness 0.080 +/- 0.012 mm(ISO 4593/DIN 53370)Successful trials have been carried out at this thickness.5.3.2 Width 40 mmSucces sful trials have been carried out with tape of thiswidth.
