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    FORD WSB-M2D189-A2-2007 WEATHERSTRIP EXPANDED EPDM CLOSED CELL TO BE USED WITH FORD WSS-M99P1111-A 《闭孔式膨胀三元乙丙橡胶(EPDM)挡风雨条 与标准FORD WSS-M99P1111-A一起使用 [使用 FORD WSS-M9P9-A FORD WS.pdf

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    FORD WSB-M2D189-A2-2007 WEATHERSTRIP EXPANDED EPDM CLOSED CELL TO BE USED WITH FORD WSS-M99P1111-A 《闭孔式膨胀三元乙丙橡胶(EPDM)挡风雨条 与标准FORD WSS-M99P1111-A一起使用 [使用 FORD WSS-M9P9-A FORD WS.pdf

    1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 08 14 N-STATUS Replaced by WSS-M9P9-A KMueller 2004 07 13 Revised Para 3.0 inserted; para 3.1, 3.2, 3.3, 3.13 & 4 deleted 1996 01 10 Activated M. Trapp Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 1 o

    2、f 4 WEATHERSTRIP, EXPANDED EPDM, CLOSED CELL WSB-M2D189-A2 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a closed cell sponge rubber for molded or extruded weatherstripping. EPDM content must exceed 90% of the total rubber polymer content. 2. APPLICATION This s

    3、pecification was released originally for material used in door weatherstripping, hood to cowl seal and for trunk to rear decklid seals, but may be specified for any sealing application for which foamed rubber weatherstripping is suitable. In addition to the following requirements all parts made from

    4、 this material must conform to the requirements of WSD-M9P8-A (or WSB-M9P8-A2 if a foamable hot melt adhesive is used for weatherstrip adherence). 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATER

    5、IALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 APPEARANCE 3.4.1 Color Black The color shall be uniform along the entire length of the weatherstrip assembly, including molded or mitered corners and splices.

    6、If a coating is used to achieve color uniformity, it shall be resistant to solvents used in cleaning operations as referenced in WSB-M2D49-A2 and listed in para 5.1 at the end of this document. 3.4.2 Cell Structure Sponge construction shall be homogeneous and closed cell, without large voids and/or

    7、solid spots. Test Method: The finished assembly shall be cut into a minimum of 5 sections and inspected for voids. Hard spots can be detected by manual impression of at least 50% of the finished part. ENGINEERING MATERIAL SPECIFICATIONWSB-M2D189-A2 Printed copies are uncontrolled Copyright 2007, For

    8、d Global Technologies, LLC Page 2 of 4 3.4.3 Finish Flash is not acceptable on any portion of the weatherstrip assembly. When present, it must be completely trimmed from the part without exposing sponge cell structure. 3.5 MATERIAL TESTING 3.5.1 Preparation of Test Specimens For physical property ev

    9、aluation all test specimens shall be die-cut from the finished part or surrogate specimens as agreed with Ford Motor Company. Note: When testing is performed on specimens prepared from finished parts, their dimensions and testing conditions, if different from specified ASTM test method, shall be def

    10、ined in the specification by the originator. 3.5.2 Tensile Strength, min 2.0 MPa (ISO 37/ASTM D 412, 500 mm/minute test speed) 3.5.3 Elongation at Break, min 175% (Test according to para 3.5.2) 3.5.4 Tear Strength, min 7.0 kN/m (ISO 34, Method A, Procedure (a)/ ASTM D 624, Die C) 3.5.5 Heat Aging (I

    11、SO 188/ASTM D 573, 150 +/- 50 air changes/h, 1,000 h at 80 +/- 2 C) Tensile Strength Change, max -30% Elongation Change, max -40% 3.5.5.1 Heat Aged Shrinkage Flange mount a 300 mm weatherstrip sample and heat age at 80 C for 120 h. The weatherstrip shall not shrink more than 2.0% of its original len

    12、gth. 3.5.5.2 Heat Aged Compression Set (ISO 815/ASTM D 395, Method B, except 25% compression, plied-up specimens) 3.5.5.2.1 22 h at 80 +/- 2 C 30% 3.5.5.2.2 1,000 h at 80 +/- 2 C 60% ENGINEERING MATERIAL SPECIFICATIONWSB-M2D189-A2 Printed copies are uncontrolled Copyright 2007, Ford Global Technolog

    13、ies, LLC Page 3 of 4 3.5.5.2.3 Heat Aged Load Deflection (ASTM D 1056) Measure and record the “green“ load deflection value of a 100 mm sample weatherstrip. Then, compress the sample to the designed nominal seal gap spacing and heat age at 80 C for 96 h. Within two minutes after aging, remeasure the

    14、 load deflection and identical to “green“ test methods. The heat aged value shall not be less than 70% of the “green“ value. 3.6 LOAD DEFLECTION, max (ASTM D 1056, length 100 mm) 3.6.1 At 23 +/- 2 C Cantilever Section 53 N Bulbular Section 20 N 3.6.2 At -40 +/- 1 C Cantilever Section 89 N Bulbular S

    15、ection 30 N 3.6.3 At 80 +/- 2 C Cantilever Section 40 N Bulbular Section 10 N 3.7 WEATHERING RESISTANCE 3.7.1 Exterior Parts After exposure in accordance with para 3.7.1.1 and 3.7.1.2, the material shall show no color change, bloom or iridescence in excess of specified Gray Scale rating (AATCC Evalu

    16、ation, Procedure 1/ISO 105-A02) 3.7.1.1 2000 h Xenon Arc Rating 4 Weatherometer (SAE J1960) 3.7.1.2 12 months Florida Rating 4 (FLTM BI 160-01, 5 south, direct weathering inland) ENGINEERING MATERIAL SPECIFICATIONWSB-M2D189-A2 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies,

    17、 LLC Page 4 of 4 3.7.2 Interior Parts After exposure in accordance with para 3.7.2.1 and 3.7.2.2, the material shall show no color change, bloom or iridescence in excess of specified AATCC rating (AATCC Gray Scale for Evaluating Change in Color, 10 step). 3.7.2.1 1240 kJ/m2Xenon Arc Rating 4 Weather

    18、ometer (SAE J1885) 3.7.2.2 12 months Florida Rating 4 (FLTM BI 160-01, 5 south, under glass) 3.8 OZONE RESISTANCE, max Rating 0 (FLTM BP 101-01, Procedure B, except test specimen at 100% elongation) 3.9 WATER ABSORPTION, max 5% (ASTM D 1056, except use 50 mm long specimens) 3.10 FLAMMABILITY, burn r

    19、ate, max 100 mm/minute (ISO 3795) 3.11 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h) Fog Number, min 85 Formation of clear film, droplets or crystals is cause for rejection. 3.12 LOW TEMPERATURE BRITTLENESS No evidence of cracks or (FLTM BP 106-03, 24 h at

    20、 -40 C) fractures at 2X magnification 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 The following materials, in addition to ones listed in WSD-M9D8-A, or WSB-9P8-A2, should be evaluated for chemical resistance: COAZ-19526-A (All purpose cleaner) C9A2-19C507-A (Glass cleaner)


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