FORD-WSB-M4D884-A2-2006.pdf
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1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 05 31 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 & 4 1994 07 02 Revised NB00E10043064131 Revised 2. & 3.8 1994 02 22 Released NB00I10043054313 M. J. Masserant Printed copies are uncontrolled Copyright 2006, Ford Global Techno
2、logies, LLC Page 1 of 6 POLYPROPYLENE (PP) COPOLYMER, 5% GLASS FIBER WSB-M4D884-A1 REINFORCED MOLDING COMPOUND POLYPROPYLENE (PP) COPOLYMER, 5% GLASS FIBER WSB-M4D884-A2 REINFORCED MOLDING COMPOUND, INTERIOR 1. SCOPE The materials defined by these specifications are thermoplastic polypropylene copol
3、ymer molding compounds, 5% glass fiber reinforced, that have been UV stabilized for interior applications. 2. APPLICATION WSB-M4D884-A1: This specification was released originally for material used for a cap located in the retractor of the seat belt assembly. WSB-M4D884-A2: This specification was re
4、leased originally for UV stabilized material used for a seat belt buckle cover. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1.1 All requirement
5、s of this specification, identified by symbol(s), shall be met with data representing 3 sigma values. 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate 6 - 13 g/10 minutes (ISO 1133, 230 C, 2.16 kg) (s) 3.4.2 Filler Content 2 - 7% (ISO 3451/1, Method A) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test
6、 Specimens Unless otherwise specified all tests shall be carried out on injection 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
7、center portion of the test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. ENGINEERING MATERIAL SPECIFICATION WSB-M4D884-A1/A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 6 A1 A2 3.5.2 Density, g/cm 0.91-0.9
8、3 0.91-0.98 (ISO 1183, Method A) (s) 3.5.3 Tensile Strength at Max Load, MPa, minmin 22 25 (ISO R 527, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/minute test speed) (s) 3.5.4 Flexural Modulus, GPa, min 1.3 1.3 (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span
9、) 3.5.5 Shear Modulus at 23 C, MPa 435 - 725 560 - 960 (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen approx. 60 x 10 x 4.0 +/- 0.2 mm cut from the center of specimen A. Specimen length between clamps 35-40 mm. Soak time at each temperature
10、interval - 3 minutes minimum) Additionally, a Shear Modulus versus Temperature curve shall be plotted for -50 to +150 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 5 (A1) and page 6 (A2). (s) 3.5.6 Impact Strength, Izod, kJ/m, min (ISO
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