1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Released1994 11 10 NB00I10043054391 Released D.W. WhyteWP 3948-a Page 1 of 7 PERFORMANCE, CHILD SEAT LINER, FABRIC - FOAM WSB-M15P42-ALAMINATED COMPOSITE WITH HOT STAMPED LABEL1. SCOPEThe material described in this
2、 specification is a flame or adhesivelylaminate d, heat bonded composite consisting of a face fabric, a urethanefoam and a backing fabric with a hot stamped transfer label.2. APPLICATIONThis m aterial is released for use as a removable and washable liner of anintegral modular child seat for 1994 veh
3、icles.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. Appropriatestatist ical tools must be used to analyze process/product data s
4、othat 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 to this specification.The IR spectra and thermograms established for i nitial
5、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.3.3 CONDITIONING AND TEST CONDITIONSAll test values ind
6、icated herein are based on ma terial conditioned ina control led atmosphere of 23 +/- 2 C and 50 +/- 5 % relativehumidity for not less than 24 h prior to testing and tested under thesame conditions unless otherwise specified.ENGINEERING MATERIAL SPECIFICATIONWSB-M15P42-AWP 3948-b Page 2 of 7 3.4 FAB
7、RIC CONSTRUCTION3.4.1 Face Fabric As specified on engineeringdrawing for each vehicle line.Th e WSB-M1H- specification forthe face fabric must be identified3.4.2 Backing Fabric3.4.2.1 Count, range +/- 7 %(ASTM D 3887)Wales/cm 14Courses/cm 17Loops/cm 163.4.2.2 Yarn Construction(ASTM D 1244)Wales 4.4
8、tex f12 (type 6 nylon)Courses 4.4 tex f12 (type 6 nylon)Loops 4.4 tex f12 (type 6 nylon)3.4.2.3 Finishing Operation Dyed, napped, heat set3.5 BACKING FABRIC REQUIREMENTS3.5.1 Weight, min 73 g/m2(FLTM BN 106-01)3.5.2 Breaking Strength, min(ASTM D 5034, Grab Method,305 mm/min jaw speed)Wales 178 NCour
9、ses 160 N3.5.3 Tear Strength, Trapezoid, min(ASTM D 1117, Integration Method*)Wales 40 NCourses 40 N*A s approved by the responsible Material EngineeringActivity.ENGINEERING MATERIAL SPECIFICATIONWSB-M15P42-AWP 3948-b Page 3 of 7 3.5.4 Stretch & Set, %, max(SAE J855)Stretch SetWales 18 9Courses 15 9
10、3.6 FOAM REQUIREMENTS (Without Sheeting)3.6.1 Tensile Strength, min 83 kPa(ISO 1798/ASTM D 3574, Test E)3.6.2 Tear Resistance, min 260 N/m(ISO 8067/ASTM D 3574, Test F,50 mm/minute jaw speed)3.6.3 Compression Set, max(ISO 1856, Method A/ASTM D 3574, Test D,Ct calculation 22 h at 70 C, 75 %deflection
11、, 3 specimens minimum)Normal 15 %Steam Autoclave Aged 25 %Test Method (Steam Autoclave Aged): The specimens shall besubj ected to compression set after exposure to 3 h steamautoclave at 105 +/- 5 C.3.6.4 Density, min 24 kg/m3(ISO 845/ASTM D 3574, Test A, the densityshall be determined on the foam wi
12、thoutsheeting)3.6.5 Cell StructureShall have a homogeneou s medium sized cell structure with nolarge voids.3.7 LABEL REQUIREMENTSThe ho t stamped, transfer label when required shall meet therequirements set forth in the Ford Engineering MaterialSpecification, WSB-M7G7-A.ENGINEERING MATERIAL SPECIFIC
13、ATIONWSB-M15P42-AWP 3948-b Page 4 of 7 3.8 LAMINATED MATERIAL REQUIREMENTS(Foam bonded to fabric)3.8.1 Loaded Height IRGL Range (mm)(SAE J815, Steps 1 through 4 only)A 305 x 305 mm test specimen shall be indented. Forlam inates of various thicknesses, the 222 N IndentationResidual Gage Load (IRGL) r
14、eadings shall meet the followingre quirements, when tested with the fabric surface down, orother ranges as designated on pattern drawings.Original Foam Thickness IRGL Range (mm)Under 4.4 N Preload (mm)*6.35 1.5 - 4.19.40 2.5 - 5.112.70 3.6 - 6.115.90 4.6 - 7.119.05 5.1 - 7.625.40 7.6 - 10.231.25 10.
15、2 - 12.7*Original thickness tolerance under 4.4 N load is +/- 2.3 -0.3 mm.3.8.2 Staining NoneTypical light colored s eating grade vinyl coated fabrics andbodycloths shall be placed in contact with 100 x 100 mmspecimens of the backing fabric side of the lami nate. Exposethe assembly for 7 days at 82
16、C in a mechanically convectedoven.3.8.3 Odor, max Rating 2(SAE J1351)3.8.4 Fogging(FLTM BO 116-03)Fog Number, min 60Formation of a clear fi lm, droplets or crystals is cause forrejection.ENGINEERING MATERIAL SPECIFICATIONWSB-M15P42-AWP 3948-b Page 5 of 7 3.8.5 Ply Adhesion (Fabric to Foam), min(FLTM
17、 BN 151-05, Method A, except50 mm/minute jaw speed)Original*. MD & AMD 10 NAged 7 days at 100 C*. MD & AMD 10 NAged 7 days at 38 C and 95 +/- 5 %Relative Humidity*. MD & AMD 10 N*T he test samples shall exhibit foam particles adhering tothe fabric after testing.3.8.6 Flex Fold Resistance Required fo
18、r fales sewn or bonded(FLTM BN 102-04, stitch line applications onlyProcedure B, 10 000 cycles,MD & AMD, Needle No. 24,20 - 24 stitches/100 mm)Test samples shall be the trilaminated assembly of facefabric, foam not greater than 13 mm in thickness, andsheetin g, with 3 equally spaced sewn seams. (Tes
19、t bygripping foam/fabric only.)The material shall show no evidence of needle ho le elongationor fabric tearing along the sew line(s).3.8.7 Dimensional Stability, max(SAE J315, Method C for 1 h at 120 Cand measure after 30 minutes at roomtemperature)MD - 40 %AMD - 1.0 %3.8.8 Deterioration No foam sof
20、tening, loss of(FLTM BO 112-01, 5 h resilience, or crumblingat 120 C)ENGINEERING MATERIAL SPECIFICATIONWSB-M15P42-AWP 3948-b Page 6 of 7 3.9 RESISTANCE TO FADE(SAE J 1885 and AATCC Evaluation Procedure 1225.6 kJ/m2 and 488.8 kJ/m2 exposure)The material shall be exposed both as a laminate and laid ov
21、er foam(foam thickness must be the same for both lamina te and laid over foamex posures). The material shall be rated after exposure using theAATCC Gray Scale for Evaluating Color (10 Step).3.10 FLAMMABILITY(ISO 3795/SAE J369)Burn Rate, max 100 mm/minute3.11 WASHING REQUIREMENTS FOR COMPOSITE, min 3
22、0 cyclesMachine wash on gentle cycle with cold water and detergent. Air dryafter each wash. The material shall show no thread unravelling nordelamination and there shall be minimal deformation of the material.Labels shall remain legible and 100 % bonded.3.12 ADDITIONAL REQUIREMENTSSpecific requireme
23、nts for material and/or manufa ctured parts shall bespecified on the Engineering drawing, Engineerin g parts specificationand/or performance specification. All critical areas with respect tothese properties shall be clearly designated on the engineeringdrawing.3.13 SUPPLIERS RESPONSIBILITYAll materi
24、als 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 labeling of the materialorig inally approved under this specification,
25、 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 written approval of the Materials Engineeringactivity. Test data, t
26、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 Materials Specification WSS-M99P9999-A1.ENGINEERING MATERIAL SPECIFIC
27、ATIONWSB-M15P42-AWP 3948-b Page 7 of 7 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 obtain an expression of interest from theaffec ted Purchasing
28、, 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 re
29、quirements 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 intended processes and/or applications. Uponapprov al, the material will be added to the Engineering Material ApprovedSource List.
