1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 10 07 N-STATUS No replacement named L. Soreide, NA 2005 10 27 Revised Inserted 3.0; del 3.1, 3.2, 3.3, 3.7, 3.8 rev 3.5.8.2 L. Rodigas 1989 05 19 Released SM/EQ9548TP P. Kuntze Printed copies are uncontrolled Copyright 2010, Ford Global T
2、echnologies, LLC Page 1 of 4 POLYARYLATE (ARP) MOLDING COMPOUND WSK-M4D626-A1 HIGH HEAT RESISTANT, SE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an amorphous aromatic polyester (ARP) molding compound with high heat resistance. This material is self-extinguis
3、hing (SE) without flame retardant additives. 2. APPLICATION This specification was released originally for material used for lamp reflector. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS M
4、aterial 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 3 - 6 g/10 minute (ISO 1133/ASTM D 1238, 320 C, 2, 16 kg) The material shall be dried for 4 h minimum at 130 - 140 C in a mecha
5、nical convection oven immediately preceding the test 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 (Tensi
6、le 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. 3.5.2 Density 1.19 - 1.21 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1)
7、 ENGINEERING MATERIAL SPECIFICATIONWSK-M4D626-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 3.5.3 Tensile Strength at Yield, min 65 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed) 3.5.3.1 Elongation at Break, mi
8、n 50% (Test Method according to para 3.5.3) 3.5.4 Flexural Modulus, min 1.85 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 620-935 MPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1 Hz +/- 15%, strai
9、n 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 +180 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 4. 3.5.6 I
10、mpact 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) 3.5.6.1 At 23 +/- 2 C 20 kJ/m2 3.5.6.2 At -40 +/- 2 C 15 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impac
11、t 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, min (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen) 3.5.7.1 At 1.82 Mpa 155 C 3.5.7.2 At 0.45 Mpa 168 C 3.5.8 Heat Aging Perfo
12、rmance (ISO 188/ASTM D 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 +/- 25% (Test Method per para 3.5.3) 3.5.8.2 Impact Strength, Izod Change +/- 25% (Test Method per para 3.5.6.1, specimens t
13、o be notched before heat aging) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D626-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 4 3.6 FLAMMABILITY (ISO 3795) Burn Rate 0 mm/minute (SE) The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1
14、 mm 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 7 - 8-5/C (ASTM D 696) 5.2 MOLD SHRINKAGE (ISO 2577, approx. 150 x 100 x 3.2 +/- 0
15、.2 mm injection molded specimen) 5.2.1 Molding Shrinkage After 48 h at 23 +/- 2 C 0.8 - 0.9% 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.05% After 30 min at 120 C 0.05% 5.3 MELT VOLUME RATE 2.5 - 5.5 cm3/ (ISO 1133/ASTM D 1238, 320 C, 2.16 kg) 10 minutes The
16、 material shall be dried for min of 4 h at 130 - 140 C in a mechanical convection oven immediately prior to testing. 5.4 VICAT SOFTENING TEMPERATURE 177 C (ISO 306, 10 x 10 x 4.0 +/- 0.2 mm specimens. Bath - silicone oil, temp. raise 50 +/- 5 C/h. Dial gage reset to 0 after addition of weight. At 49.0 N load) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D626-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4
