1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2011 03 01 No replacement named A. Pan, APA N Status 2006 07 26 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1999 07 06 Activated J. Crist Printed copies are uncontrolled Copyright 2011, Ford Global Technologies, LLC Page 1 of 3 P
2、OLYPROPYLENE (PP), HOMOPOLYMER 30% CALCIUM WSS-M4D959-A2 CARBONATE FILLED, HEAT STABILIZED, 25% MIN POST CONSUMER CONTENT NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a 30% calcium carbonate filled thermoplastic molding compound based on polypropylene homopoly
3、mer (25% min post consumer content). 2. APPLICATION This specification was released originally for material used in Sub Woofer Housings. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Pro
4、duction Materials (WSS-M99P1111-A). 3.1.1 All requirements 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 8 - 13 g/ (ISO 1133, 230 C, 2.16 kg) 10 minutes (s) 3.4.2 Filler Content 27 - 33% (ISO 3451-1,
5、 Method A, 650 +/- 25 C, CACO3) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test 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.
6、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 allowed. ENGINEERING MATERIAL SPECIFICATIONWSS-M4D959-A2Copyright 2011, Ford Global Technologies, LLC P
7、age 2 of 3 Printed copies are uncontrolled The test specimens must be conditioned for min of 6 h at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold box. 3.5.2 Density 1.12 - 1.18 g/cm3(ISO 1183, Method A) (s) 3.5.3 Tensile Strength at Yield
8、 min 24 MPa (ISO R 527, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/minute test speed) (s) 3.5.4 Flexural Modulus, min 1.8 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/minute test speed, 64 mm support span) (s) 3.5.5 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specim
9、en, 10 specimens for each test) 3.5.5.1 At 23 +/- 2 C 4.5 kJ/m23.5.5.2 At -40 +/- 2 C 2.0 kJ/m2(s) 3.5.6 Heat Deflection Temperature, min 50 C (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, edgewise, 0.32 +/- 0.01 mm deflection. At 1.80 MPa) 3.5.7 Heat Aging Performance (ISO 188, except 150 +/- 50 air
10、 changes/h, 1000 h at 140 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.7.1 Tensile Strength at Max +/- 25% Load Change (Test Method per para 3.5.3) 3.5.7.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.5.6.1, specimens to be
11、 notched before heat aging) 3.6 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. ENGINEERING MATERIAL SPECIFICATIONWSS-M4D959-A2Copyright 2011, Ford Global Technologies, LLC Page 3 of 3
12、 Printed copies are uncontrolled 3.7 FOGGING (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. 5. GENERAL INFORMATION The information given below is provided for clarific
13、ation and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION (ASTM E 831 TMA, temperature range -30 to +110 C) Flow 9.2-5Cross Flow 1.4-45.2 MOLD SHRINKAGE (ISO 2577, approximately 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Mold
14、ing Shrinkage . After 48 h at 23 +/- 2 C 1.3% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 1.7% . After 30 minutes at 120 C 1.7% 5.3 MELT TEMPERATURE 160 C (ISO 3146, Method C, 10 C/minute heating rate) 5.4 HEAT DEFLECTION TEMPERATURE 90 C (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, edgewise, 0.32 +/- 0.01 mm deflection. At 0.45 MPa) 5.5 ELONGATION AT BREAK 120% (ISO R 527) 5.6 IMPACT RESISTANCE, FALLING WEIGHT, min 85 J (ASTM D 3029, Method GC, specimen thickness, 3.2 mm) 5.7 RECYCLING CODE PP-KD30
