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    FORD SD-M99G9501-A-1994 POLYURETHANE FOAM W PVC COATING FOR SOUND ABSORPTION - SELF- ADHESIVE《带吸声聚氯乙烯(PVC)涂层的自粘聚氨酯泡沫》.pdf

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    FORD SD-M99G9501-A-1994 POLYURETHANE FOAM W PVC COATING FOR SOUND ABSORPTION - SELF- ADHESIVE《带吸声聚氯乙烯(PVC)涂层的自粘聚氨酯泡沫》.pdf

    1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Release No. Released1994 12 15 Revised and Retyped, was 10 pages1978 02 03 B/118401 TP Revised sheet 51976 05 21 SM/EQ 8090 TP ReleasedWP 3948-a Page 1 of 6 POLYURETHANE FOAM WITH PVC COATING FOR SD-M99G9501-ASOUND ABSORPTION,

    2、 SELF ADHESIVE1. SCOPEThe mate rial defined by this specification is a polyurethane foam onpolyether base with a PVC spray coating on top and cut s ides and a pressuresensitive adhesive backing on t he reverse side protected by release paper.2. APPLICATIONThis m aterial is used as a sound absorption

    3、 pad in the engine compartmentand is adhered to the underneath of the hood and/or as specified on theEngineering Drawing.3. REQUIREMENTSNote : The material shall be conditioned for a minimum of 24 hours at 23+/- 2 C and 50 % +/- 5 % relative humidity prior to test and tested underthe same conditions

    4、.3.1 POLYURETHANE FOAM (without coating)3.1.1 Density 30 - 45 kg/m3(ISO 1855)3.1.2 Tensile Strength(ISO 1798)3.1.2.1 Original, min 8 N/cm23.1.2.1.1 Elongation, min 100 %3.1.2.2 After Humidity Ageing, max - 30 %(ISO 2440, 3 h, 105 C)3.1.2.3 After Heat Ageing, max - 30 %(ISO 2440, 22 h, 140 C)3.1.3 Te

    5、ar Strength, min 3.5 N/cm3.1.4 Compression Set, max 5 %(ISO 1856, Method A, 50 %, 22 h at 70 C)ENGINEERING MATERIAL SPECIFICATIONSD-M99G9501-AWP 3948-b Page 2 of 6 3.2 FINISHED PART REQUIREMENTS3.2.1 Dimensions and Weight As specified on the Engineeringdrawing3.2.2 Color of Coating Black or as speci

    6、fied on Engineeringdrawing3.2.3 Coating Thickness 0.10 - 0.20 mm3.2.3.1 Coating Weight, max 100 g/m2The PVC spray coating shall be uniformly smooth inap pearance. There shall be no breaks in thecontin uous film that would permit any exposure of theunderlay foam material.3.2.4 Adhesion of Coating to

    7、Foam, min 4 N/25 mmTest Method:1) Cut into the coating of the material under test an area of25 x 250 mm with a razor blade.2) Cover the area with tape according to SK -M3G9500-A and pressdown firmly.3) Remove the tape foam test piece in a ten sile testing machineat an ang le of 180 deg and test spee

    8、d of approx 500mm/minute.3.2.5 Resistance of Coating to Various Test ReagentsThe coat ing shall not dissolve or exhibit tackiness when rubbedlight ly for 15 seconds with a cotton cloth soaked with each ofthe fo llowing test reagents. Use a separate specimen for eachtest reagent.Test Reagents:1) Petr

    9、ol, premium grade2) Oil No 1, ASTM D 4713) Ford Longlife coolant(50 % mixture in water)4) Sulfuric acid(10 % by weight)5) Diesel fuel(commercial)6) TolueneENGINEERING MATERIAL SPECIFICATIONSD-M99G9501-AWP 3948-b Page 3 of 6 3.2.6 Flammability Self-extinguishing(FLTM EU-BN-24-2)3.2.7 Indentation Hard

    10、ness 180 +/- 20 N(ISO 2439, Method B, 50 % compression)3.2.8 Adhesion to Painted MetalThere sh all be no loss of adhesion, no evidence of coating orfoam deterioration when tested as followsTest Method “A“:1) Cut from material under test specimens 200 x 200 mm(thickness according to Engineering draw

    11、ing) and bond firmlyto body skin panel 300 x 300 x 1 mm, prepared according toFLTM EU-BI 3-2.2) After 2 hours at room temperature expose test assemblies 4times to the following environmental test cycle.16 h at 38 +/- 1 C and 98 +/- 2 % relative humidity8 h at 70 +/- 2 C3) Cool to room temperature an

    12、d test according to FLTM EU-BV55-6, Load “A“ at room temperature.Test Method “B“:1) Prepare test sp ecimens as outlined under clause 1 of Method“A“ above.2) After 24 hours conditioning at room temperature exposeassemblies for 14 days at 70 +/- 2 C in a mechanicallyconvected air-dry oven.3) Aft er co

    13、oling to room temperature expose assemblies for 4hours at - 40 +/- 1 C and while still in cold box testaccording to FLTM EU-BV 55-6, Load “A“.3.2.9 Adhesion at Elevated TemperaturesNo loss of adhesion or deterioration of coating.Test Method:1) Prepare test specimens as outlined under clause3.2.8, Me

    14、thod“A“, paragraph 1.2) After 24 hours conditioning at room temperature suspendassemblies in i nverted position in a mechanically convectedair-dry oven maintained at 90 +/- 2 C for 7 days.ENGINEERING MATERIAL SPECIFICATIONSD-M99G9501-AWP 3948-b Page 4 of 6 3.2.10 Sound Absorption According to attach

    15、ed diagram(ASTM C 384)3.2.11 Health Hazard and OdorThe material must not contain any ingredients (matter) which,under normal production condition s, could lead to health hazardssuch as skin rash or irritation (dermatitis), irritation of themucous membranes, difficulties in breathing etc.The material

    16、 shall be free from objectionable odors both asreceived and after storage.3.3 SUPPLIERS RESPONSIBILITYAll mat erials supplied to this specification must be equivalent in allchara cteristics to the material upon which approval was originallygranted.Prior to making any change in the properties, compos

    17、ition, construction,color, p rocessing or labeling of the material originally approved underthis s pecification, whether or not such changes affect the materialsability to meet the specification requirements, the Suppli er shall notifyPur chasing, Toxicology and the affected Materials Engineering ac

    18、tivityof the proposed changes and obtai n the written approval of the MaterialsEn gineering activity. Test data, test samples and a new codeidentification are to be submitted with the request.Substance restrictions imposed by law, regulations or Ford, apply to themateria ls addressed by this documen

    19、t. The restrictions are defined inEngineering Materials Specification WSS-M99P9999-A1.4. APPROVAL OF MATERIALSMat erials defined by this specification must have prior approval by theresponsible Materials Engineering activity. Suppliers desiring approval oftheir materials shall first obtain an exp re

    20、ssion of interest from the affectedPu rchasing, Design and Materials Engineering activity. Upon request, theSuppl ier shall submit to the affected Materials Engineering activity acom pleted copy of their laboratory test reports, signed by a qualified andauthorized repre sentative of the test facilit

    21、y, demonstrating full compliancewith all the requirements of this specification (test results, not nominalvalues), the material designation and cod e number, and test specimens for Fordevaluatio n. Fords engineering approval of a material will be based on itsper formance to this specification and on

    22、 an assessment of suitability forintended processes and/or applications. Upon approval, the material will beadded to the Engineering Material Approved Source List.ENGINEERING MATERIAL SPECIFICATIONSD-M99G9501-AWP 3948-b Page 5 of 6 5. GENERAL INFORMATIONThe information given below is provided for cl

    23、arification and assistance inmeeting the requirements of this specification.5.1 HEIGHT IN STORAGE As recommended by supplier.5.2 STORAGE STABILITY(From date of receipt at Ford Motor Company)Minimum 3 months when stored between 5 C and 28 C. The release papershall remove easily without damag e to the adhesive film both as receivedand after storage.ENGINEERING MATERIAL SPECIFICATIONSD-M99G9501-AWP 3948-b Page 6 of 6


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