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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
11、180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 4.0 2.1 3.5.6.2 At -40 +/- 1 C 2.0 1.2 3.5.6.3 At -18 +/- 2 C - 1.6 The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperature testing
12、shall be done within the cold box. (s) 3.5.7 Heat Deflection Temperature, C, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.32 +/- 0.01 mm deflection) 3.5.7.1 At 1.80 MPa 62 65 3.5.7.2 At 0.45 MPa 128 100 ENGINEERING MATERIAL SPECIFICATION WSB-M4D884-A1/A2 Printed copies are uncontrolled Copyrig
13、ht 2006, Ford Global Technologies, LLC Page 3 of 6 3.5.8 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 120 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.8.1 Tensile Strength at Max Load Change +/- 25% (Test Met
14、hod per para 3.5.3) 3.5.8.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FOGGING (FLTM BO 116-03, 3 h at 100 C) Fog Number, min 70 Formation of clear film or droplets is cause for rejection. 3.7 FLAMMABILITY (ISO 3795/SAE J369) Bu
15、rn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.5 +/- 0.1 mm with a smooth surface. 3.8 WEATHERING RESISTANCE (A2 only) After exposure in accordance with 3.8.1, and 3.8.2 the material shall show no fading or color change in excess of specified Gray Scale
16、rating (AATCC Evaluation Procedure 1/ISO 105-A02). 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 mild detergents and water (ratio 5:95 by volume), or equiva
17、lent, after the Florida exposure. All initial approvals will be based on the preliminary Weatherometer exposure, pending Florida exposure results for final approval. 3.8.1 Xenon Arc Weatherometer Rating 4-5 (SAE J1885, 1240 kJ/m exposure minimum, specimen size: 150 x 100 mm minimum, 3.2 +/- 0.2 mm t
18、hick, molded in smooth polished mold) ENGINEERING MATERIAL SPECIFICATION WSB-M4D884-A1/A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 6 3.8.2 12 months Florida Rating 4-5 (FLTM BI 160-01, 5 south, under glass, specimen size: 150 x 100 mm, minimum, 3.2 +/-
19、0.2 mm thick, molded in smooth polished mold) 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 2.3-5/ C (ASTM E 228 or TMA, temperature range -30 to +30 C)
20、A1 A2 5.2 MOLD SHRINKAGE, % (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 1.2 1.0 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.3 1.2 . After 30 minutes at 120 C 0.3 1.4 5.3 HARDNE
21、SS, DUROMETER D 65 95 ISO 868, 15 s dwell) 5.4 ELONGATION AT BREAK, % 10 5 (ISO 4599/SAE J2016, test according to para 3.5.3) 5.5 RECYCLING CODE PP-GF05 ENGINEERING MATERIAL SPECIFICATION WSB-M4D884-A1/A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 5 of 6 ENGINEERING MATERIAL SPECIFICATION WSB-M4D884-A1/A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 6 of 6