1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 06 17 A1-N-STATUS Replaced by WSS-M4D643-B1 V. Cerato, EU 2005 10 11 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 & 4 1989 07 03 Released SM/EQ24042 TP L. Rodigas Printed copies are uncontrolled Copyright 2010, Ford Global Techno
2、logies, LLC Page 1 of 6 POLYPROPYLENE (PP), HOMOPOLYMER NOT TO BE USED FOR NEW DESIGN WSK-M4D643-A1 40% MINERAL FILLED, MELT FLOW RATE 4 - 7 POLYPROPYLENE (PP), HOMOPOLYMER WSK-M4D643-A2 40% MINERAL FILLED, MELT FLOW RATE 1 - 3.5 1. SCOPE The materials defined by these specifications are 40% mineral
3、 filled injection molding compounds based on polypropylene homopolymer. 2. APPLICATION These specifications were released originally for materials used for air conditioning housing. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDAR
4、D 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 A1 A2 3.4.1 Melt Flow Rate, g/10 minutes 4 7 1.0 - 3.5 (ISO 1133/ASTM D 1238, 230 C, 2.16 kg) 3.4.2 Mineral
5、 Content, (A1 and A2) 35 - 42% (ISO 3451/1, Method A, talc filler, 30 minutes at 550 +/- 50 C, test portion 1 to 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
6、 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 ENGINEERING MATERIAL SPECIFICATIONWSK-M4D643-A1/A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 6 Specimens with shorter dimensions shall be cut
7、from the center portion of the test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density (A1 and A2) 1.19 - 1.28 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Max Load, min 24 MPa (A1 and A2) (ISO R 527/ASTM D 638M
8、, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/min test speed) A1 A2 3.5.4 Flexural Modulus, GPa, min 3.2 4.0 (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, GPa 1.04 - 1.72 - (ASTM D 4065, forced constant amplitude, -1
9、.70 -2.90 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. Additionally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to +140 C temperature range, at 5 C minimum intervals. The plotted curves must b
10、e within tolerance range shown on pages 5 (-A1) and 6 (-A2). 3.5.6 Impact Strength, Izod, kJ/m2, 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 2.0 2.7 3.5.6.2 At -40 +/- 2 C 1.2 1.2 The test specimens must be condi
11、tioned 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. 3.5.7 Heat Deflection Temperature, C, min (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specim
12、en) 3.5.7.1 At 1.82 MPa 62 72 3.5.7.2 At 0.45 MPa 114 122 ENGINEERING MATERIAL SPECIFICATIONWSK-M4D643-A1/A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 6 3.5.8 Heat Aging Performance, (A1 and A2) (ISO 188/ASTM D 573, 1000 h at 140 +/- 2 C. Unaged property
13、 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) 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 (A1 and A2) (IS
14、O 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 surface. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. A1 A2 5.1 CO
15、EFFICIENT OF LINEAR THERMAL 3 8 5 - 10 EXPANSION , -5/ C (ASTM D 696) 5.2 MOLD SHRINKAGE (A1 and A2) (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 0.5 - 1.0% 5.2.2 Post Shrinkage (Separate specimens required for each test) A
16、fter 48 h at 80 C 0 - 0.15% After 30 minutes at 120 C 0.15 - 0.30% 5.3 ELONGATION AT BREAK, min (A1 and A2) 8% (Test Method according to para 3.5.3) 5.4 HARDNESS, DUROMETER D (A1 and A2) 58 - 74 (ISO 868/ASTM D 2240, 15 s dwell) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D643-A1/A2 Printed copies are u
17、ncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 6 5.5 IMPACT STRENGTH, IZOD, min (A1 and A2) (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) 5.5.1 At 10 +/- 2 C 1.5 kJ/m2The test specimens must be conditioned for minimum o
18、f 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. ENGINEERING MATERIAL SPECIFICATIONWSK-M4D643-A1/A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 6 ENGINEERING MATERIAL SPECIFICATIONWSK-M4D643-A1/A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 6 of 6
