1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2005 10 14 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 & 4 1997 07 31 Activated N. Kurtycz Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 1 of 5 POLYPROPYLENE (PP) HOMOPOLYMER, HEAT WSS-M4D644-A3
2、STABILIZED, 40% MINERAL FILLED, CONTROLLED RHEOLOGY, 25% MINIMUM RECYCLED CONTENT MOLDING COMPOUND 1. SCOPE The material defined by this specification is a 40% mineral filled injection molding compound based on 25% minimum recycled polypropylene homopolymer obtained from post consumer sources with c
3、ontrolled rheologic properties. 2. APPLICATION This specification was released originally for material used for air conditioning housing. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Pr
4、oduction 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 12 - 18 g/ (ISO 1133/ASTM D 1238, 230 C, 2.16 kg) 10 minutes 3.4.2 Mineral Content 35 - 40% (
5、ISO 3451/1, Method A, talc filler 30 minutes at 550 +/- 50 C, test portion 1 - 2 g) 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 m
6、in 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 MATERIAL SPECIFICATIONWSS-M4D6
7、44-A3 Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 2 of 5 3.5.2 Density 1.19 - 1.25 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) (s) 3.5.3 Tensile Strength at Max Load, min 24 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/minute tes
8、t speed) (s) 3.5.4 Flexural Modulus, min 3.6 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 1460 MPa/GPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strain level below 1%. Specimen appr
9、oximately 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 min intervals. The plotted curve must be within tolerance range shown on page 5. (s) 3.5.6 Impact Strength, Izod, mi
10、n (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 2.0 kJ/m23.5.6.2 At -40 +/- 2 C 1.4 kJ/m2The test specimens must be conditioned for min of 6 h at the above specified temperature prior to impact test. Low temperature te
11、sting shall be done within the cold box, if not possible, test can be conducted outside, but within 5 s. (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 67 C 3.5.7.2 At 0.45 MPa 118 C 3.5.8 Heat Aging Performance (ISO 188/ASTM D
12、573, 1000 h at 140 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.8.1 Tensile Strength Change +/- 15% (Test Method per para 3.5.3) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D644-A3 Printed copies are uncontrolled Copyright 2005, Ford Global Te
13、chnologies, LLC Page 3 of 5 3.5.8.2 Impact Strength, Izod Change +/- 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 1.0 +/- 0.1 mm with a smooth sur
14、face. 3.7 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. 3.8 ODOR, max Rating 2.5 (SAE J1351) 5. GENERAL INFORMATION The information given below is provided for clarifi
15、cation and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 5 - 10-5/ C (ASTM D 696) 5.2 MOLD SHRINKAGE (ISO 2577, approximately 150 x 100 x 3.2 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 0.5 - 0.9
16、% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0 - 0.15% . After 30 minutes at 120 C 0.1 - 0.3% 5.3 ELONGATION AT BREAK, min 8% (Test Method according to para 3.5.3) 5.4 HARDNESS, DUROMETER D, min 68 (ISO 868/ASTM D 2240, 15 s dwell) ENGINEERING MATERIAL SPEC
17、IFICATIONWSS-M4D644-A3 Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 4 of 5 5.5 DETERMINATION OF CR-GRADE Calculation of Melt Flow Rate - Ratio: B/A x 100 A - Melt Flow Rate at 190 C and 0.325 kg B - Melt Flow Rate at 190 C and 10.0 kg Test Method for A and B acc
18、ording to ISO 1133. 5.6 IMPACT STRENGTH, IZOD, 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) 5.6.1 At 10 +/- 2 C 1.6 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test.
19、 Low temperature testing shall be done within the cold box, if not possible, test can be conducted outside, but within 5 s. 5.7 RECYCLING CODE (SAE J1344) PP-TD40 ENGINEERING MATERIAL SPECIFICATIONWSS-M4D644-A3 Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 5 of 5
