1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2011 03 01 N-Status No replacement named A Pan, APA 2005 09 14 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 & 4 1995 11 14 Activated M. Myers Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 1 of 3 P
2、OLYPROPYLENE (PP) SHEET, 45% CONTINUOUS WSB-M4D619-A4 GLASS FIBER REINFORCED NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a sheet composed of a homopolymer polypropylene matrix, with 45% by weight, continuous glass fiber reinforcement. 2. APPLICATION This spec
3、ification was released originally for material used for exterior bumper beam applications. 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
4、requirements of this specification, identified by symbol(s), shall be met with data representing 3 sigma values. 3.4 MOLDED TEST SPECIMEN 3.4.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on specimens machined from thermoformed sheets according to ISO 2818
5、. 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 prepared according to ISO 294. No annealing al
6、lowed. 3.4.2 Glass Fiber Content 40 - 50% (ISO 3451/1, Method A, 1 h at 650 +/- 25 C) 3.4.3 Density 1.20 - 1.32 g/cm3 (ISO 1183, Method A) (s) 3.4.4 Tensile Strength at Max Load, min 110 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/ minute test speed) ENGINEERING MATERIAL SPECIFI
7、CATION WSB-M4D619-A4 Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 2 of 3 (s) 3.4.5 Flexural Modulus, min 5.7 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/minute test speed, 64 mm support span) 3.4.6 Shear Modulus at 23 C 1.5 - 2.5 GPa (ASTM D 4065, forc
8、ed 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 interval - 3 minutes minimum) Additionally, a Shear Modulus versus Temp
9、erature curve shall be plotted for -50 to +180 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 6. (s) 3.4.7 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.4.7.1 At 23 +/- 2 C 61 kJ
10、/m2 3.4.7.2 At -40 +/- 1 C 65 kJ/m2 The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold box. (s) 3.4.8 Heat Deflection Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimens, e
11、dgewise, 0.32 +/- 0.01 mm deflection) 3.4.8.1 At 1.80 MPa 158 C 3.4.8.2 At 0.45 MPa 163 C 3.4.9 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 135 +/- 2 C. After heat aging test specimens are to be conditioned in a desiccator for 3 - 5 h at 23 +/- 2 C. Unaged property va
12、lues shall be determined at the time of the aged properties determination) 3.4.9.1 Tensile Strength at Max Load Change +/- 25% (Test Method per para 3.4.4) ENGINEERING MATERIAL SPECIFICATION WSB-M4D619-A4 Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 3 of 3 3.4.9
13、.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.4.7.1, specimens to be notched before heat aging) 3.5 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h) Fog Number, min 90 Formation of clear film, droplets or crystals is cause for rejection. 3.6
14、 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 3.2 +/- 0.1 mm with a smooth surface. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this spe
15、cification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 2.7-5/ C (ASTM E 831 TMA, temperature range -40 to +140 C) 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 0.16% 5.3 HARDNESS, DUROMETER D 72 (ISO 868, 15 s dwell) 5.4 ELONGATION AT BREAK 2.5% (Test Method according to para 3.5.3) 5.5 RECYCLING CODE PP-GF45
