1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 08 N-STATUS No replacement named J. Crist, NA 2005 09 30 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 & 4 1989 03 16 Released CSS1-MF365651 M. A. Myers GAM JM Printed copies are uncontrolled Copyright 2010, Ford Global Technol
2、ogies, LLC Page 1 of 4 POLYPROPYLENE (PP), IMPACT MODIFIED WSB-M4D640-A 35% CHEMICALLY COUPLED GLASS FIBER/MINERAL REINFORCED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a thermoplastic injection molding compound based on polypropylene homopo
3、lymer, impact modified and reinforced with chemically coupled glass fiber (20%) and mica (15%). 2. APPLICATION This specification was released originally for material used for rear quarter wheel opening shields on the 1989 Thunderbird/Cougar. 3. REQUIREMENTS Material specification requirements are t
4、o be used for initial qualification of materials. 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). 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 2 - 4 g/10 minutes (ISO 1
5、133/ASTM D 1238, 230 C, 2.16 kg) 3.4.2 Filler Content 33 - 37% (ISO 3451/1, Method A, 1 h at 700 +/- 25 C) 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
6、 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 allowed. ENGINEERING MATERIA
7、L SPECIFICATIONWSB-M4D640-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 3.5.2 Density 1.15 - 1.19 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Max Load, min 41 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen
8、, 5 mm/min test speed) 3.5.4 Flexural Modulus, min 3.1 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) 3.5.5 Shear Modulus at 23 C 980 - 1630 (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Speci
9、men approx. 60 x 10 x 4.0 +/- 0.2 mm cut from the center of specimen A.) Additionally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to +160 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 4. 3.5.6 Impact Strength, Izod,
10、min (ISO 180, Method A/ASTM D 256, Method A, 63.5 x 10 x 4.0 +/-0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 5.8 kJ/m23.5.6.2 At -40 +/- 2 C 3.5 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperatu
11、re testing shall be done within the cold box, if not possible, test can be conducted outside, but within 5 s. 3.5.7 Heat Deflection Temperature, min (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen) 3.5.7.1 At 1.82 MPa 116 C 3.5.7.2 At 0.45 MPa 146 C 3.5.8 Heat Aging Performance (ISO 188/ASTM
12、D 573, 1000 h at 140 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination). ENGINEERING MATERIAL SPECIFICATIONWSB-M4D640-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 4 3.5.8.1 Tensile Strength Change +/- 15%
13、(Test Method per para 3.5.3) 3.5.8.2 Impact Strength, Izod Change, max -15% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.5 mm (thickness) +/- 0.1 mm
14、 with a smooth surface. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 4.5-5/ C (ASTM D 696) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100 x 3.2 +/- 0.2 m
15、m injection molded specimen) 5.2.1 Molding Shrinkage After 48 h at 23 +/- 2 C 0.5% 5.3 ELONGATION AT BREAK (Filled Material) 2% (Test Method according to para 3.5.3) 5.4 HARDNESS, DUROMETER D 67 +/- 5 (ISO 868/ASTM D 2240, 15 s dwell) ENGINEERING MATERIAL SPECIFICATIONWSB-M4D640-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4
