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    FORD WSS-M4D638-C2-2006 POLYPROPYLENE (PP) MOLDING COMPOUND COLOR PIGMENTED LOW GLOSS UV STABILIZED INTERIOR TO BE USED WITH FORD WSS-M99P1111-A (Use WSS-M4D638-C)《内部染色的低光泽具有紫外线稳.pdf

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    FORD WSS-M4D638-C2-2006 POLYPROPYLENE (PP) MOLDING COMPOUND COLOR PIGMENTED LOW GLOSS UV STABILIZED INTERIOR TO BE USED WITH FORD WSS-M99P1111-A (Use WSS-M4D638-C)《内部染色的低光泽具有紫外线稳.pdf

    1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 10 16 N-STATUS Replaced by WSS-M4D638-C R. Lord 2005 09 30 Revised Format Revised 2003 01 08 Activated M. Masserant Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 4 POLYPROPYLENE (PP) MOLDING COMP

    2、OUND, COLOR WSS-M4D638-C2 PIGMENTED, LOW GLOSS, UV STABILIZED, INTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a molded-in-color low gloss, polypropylene copolymer that is UV stabilized for unpainted interior applications with superior cold impact and th

    3、ermal performance. 2. APPLICATION This specification was released originally for material used for interior trim applications with airbags requiring improved cold impact performance. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform

    4、 to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 MOLDING COMPOUND 3.2.1 Melt Flow Rate 20 - 40 g/10 minutes (ISO 1133, 230 C, 2.16 kg) 3.3 MOLDED TEST SPECIMEN 3.3.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on inject

    5、ion molded one-end gated test specimens. The following dimensions are required: A. 150 min x 10 x 4.0 +/- 0.2 mm (Tensile Bar, ISO 3167) B. 120 x 10 x 4.0 +/- 0.2 mm Specimens with shorter dimensions shall be cut from the center portion of the test specimen A and/or B. The specimens shall be prepare

    6、d according to ISO 294. No annealing allowed. 3.3.2 Density 0.95 - 0.98 g/cm3 (ISO 1183, Method A1) ENGINEERING MATERIAL SPECIFICATION WSS-M4D638-C2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 4 3.3.3 Tensile Strength at Max Load, min 23 MPa (ISO R 527, 15

    7、0 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/minute test speed) 3.3.3.1 Elongation at Break, min 50% (Test Method according to para 3.3.3) 3.3.4 Flexural Modulus, min 1600 MPa (ISO 178, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) 3.3.5 Impact Strength, Izod, min (ISO

    8、 180, Method A, 63.5 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.3.5.1 At 23 +/- 2 C 26.0 kJ/m2 3.3.5.2 At -18 +/- 2 C 5.0 kJ/m2 3.3.5.3 At -40 +/- 2 C 2.5 kJ/m2 The test specimens must be conditioned for min of 6 h at the above specified temperature prior to impact test. Low tempe

    9、rature testing shall be done within the cold box, if not possible, test can be conducted outside, but within 5 s. 3.3.6 Heat Deflection Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen) 3.3.6.1 At 1.82 MPa 58 C 3.3.6.2 At 0.45 MPa 110 C 3.3.7 Heat Aging Performance (ISO 188, 1000 h at 13

    10、0 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.3.7.1 Tensile Strength Change +/- 15% (Test Method per para 3.3.3) 3.3.7.2 Impact Strength, Izod Change, max -15% (Test Method per para 3.3.5.1, specimens to be notched before heat aging) ENGINE

    11、ERING MATERIAL SPECIFICATION WSS-M4D638-C2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 3.4 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 2.0 +/- 0.1 mm with a smooth surface. 3.5 FOGG

    12、ING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 90 Formation of clear film, droplets or crystals is cause for rejection. 3.6 WEATHERING RESISTANCE After exposure in accordance with para 3.6.1 and 3.6.2 the material shall show no fading o

    13、r color change in excess of specified AATCC rating (AATCC Gray Scale for Evaluating Change in Color, 10 step). In addition, there shall be no cracking, crazing or other deterioration. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved by washing with

    14、 mild detergents and water (ratio 5:95 by volume) after the Florida exposure. 3.6.1 Xenon Arc Weatherometer Rating 4 - 5 (SAE J1885, 1240 kJ/m2 exposure min, specimen size: 150 x 100 mm min, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.6.2 12 months Florida Rating 4 - 5 (FLTM BI 160-01, 5

    15、 south, under glass, specimen size: 150 x 100 mm, min, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) ENGINEERING MATERIAL SPECIFICATION WSS-M4D638-C2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4 3.7 IMPACT STRENGTH, MULTIAXIAL, J MIN 21 min, ducti

    16、le at -30 C Test Method ISO 6603/2, injection molded 3.2 +/- 0.2 mm thick specimen, 10 +/- 0.1 mm striker diameter, impact velocity 6.0 +/- 0.1 m/second. Test at the following low temperature that yields a ductile failure: -40 +/- 2 C, -30 +/- 2 C, -20 +/- 2 C, or 23 +/- 2 C, test minimum of 5 speci

    17、mens. Test specimens must be conditioned for minimum of 6 h at the specified temperature prior to impact testing. Low temperature testing shall be done within the cold chamber. A ductile failure is defined as a crack that does not radiate more than 15 mm from the point of impact. Report in Joules to

    18、tal energy and peak energy at all temperatures. Test results shall be submitted with an initial characterization of the material with curves and tested samples. 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specifi

    19、cation. 4.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 9.5-5/C (ASTM D 696) 4.2 MOLD SHRINKAGE (ISO 2577, approximately 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 4.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 1.6% 4.3 HARDNESS, DUROMETER D 62 (ISO 868/ASTM D 2240, 15 s dwell) 4.4 RECYCLING CODE PP


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