1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 08 TO BE N-STATUS No replacement named named J. Crist, NA 2005 09 07 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 Corrected numbering 3.5.9 1992 03 31 Released DF00E00107002143 A. Vallabhanath Printed copies are uncontrolled C
2、opyright 2010, Ford Global Technologies, LLC Page 1 of 4 POLYPROPYLENE (PP) COPOLYMER, 22% MINERAL WSF-M4D556-A2 FILLED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a 22% mineral (talc/mica) filled injection molding compound based on polypropy
3、lene copolymer with medium melt flow rate. 2. APPLICATION This specification was released originally for material used for audio (sound) enclosure. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requireme
4、nts For Production Materials (WSS-M99P1111-A). 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 3 - 8 g/10 minutes (ISO 1133/ASTM D 1238, 230 C, 2.16 kg) 3.4.2 Mineral Content 18 - 25% (ISO 3451/1, Method A, 800 +/- 50 C, test portion 2.0 to 2.5 g) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specime
5、ns Unless otherwise specified all tests shall be carried out on injection molded one-end gated test specimens. The following dimensions are required: A. 150 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 porti
6、on of the test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 1.02 - 1.08 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) ENGINEERING MATERIAL SPECIFICATIONWSF-M4D556-A2 Printed copies are uncontrolled Copyright 2010, Ford Global Techno
7、logies, LLC Page 2 of 4 3.5.3 Hardness, Durometer D 56 - 66 (ISO 868/ASTM D 2240, 15 s dwell) 3.5.4 Tensile Strength at Yield, min 17 MPa (ISO R 527/ASTM D 638M, 150 x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed) 3.5.5 Flexural Modulus, min 1.5 GPa (ISO 178/ASTM D 790M, Method I, Procedure A,
8、 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span, the radius of the loading nose 5.0 +/- 0.1 mm and of the supports 2.0 +/- 0.2 mm) 3.5.6 Shear Modulus at 23 C 1.0 - 1.8 GPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Sp
9、ecimen 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 vs. Temperature curve shall be plotted for -50 to +150 C temperature range, at 5 C minimum int
10、ervals. The plotted curve must be within tolerance range shown on page 4. 3.5.7 Impact Strength, Izod, min. (ISO 180, Method A/ASTM D 256, Method A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.7.1 At 23 +/- 2 C 4.0 kJ/m23.5.7.2 At -40 +/- 2 C 2.0 kJ/m23.5.7.3 At 10 +/- 2 C 3.5
11、 kJ/m2The 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, if not possible, test can be conducted outside, but within 5 s. 3.5.8 Heat Deflection Temperature, min (ISO 75/ASTM D 64
12、8, 120 x 10 x 4.0 +/- 0.2 mm specimen, at standard deflection of 0.32 +/- 0.01 mm) 3.5.8.1 At 1.80 MPa 50 C 3.5.8.2 At 0.45 MPa 100 C ENGINEERING MATERIAL SPECIFICATIONWSF-M4D556-A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 4 3.5.9 Heat Aging Performance
13、 (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 140 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9.1 Tensile Strength Change +/- 15% (Test Method per para 3.5.4) 3.5.9.2 Impact Strength, Izod Change +/- 25% (Test Method per para
14、3.5.7, at 23 +/- 2 C, specimen 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 10 x 1.0 +/- 0.1 mm with a smooth surface. 5. GENERAL INFORMATION The information given below is provided for clarificat
15、ion and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 8-5/ C (ASTM D 696) 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 1.0% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 1.1% . After 30 min at 120 C 1.2% 5.3 RECYCLING CODE PP-M22 ENGINEERING MATERIAL SPECIFICATIONWSF-M4D556-A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4
