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, 3.8, 3.9 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 5 POLYARYLATE (ARP) MOLDING COMPOUND WSK-M4D626-A2 HIGH HEAT RESISTANT, SE, INTERIOR 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, colored transparent o
3、r pigmented for interior applications. This material is self-extinguishing (SE) without flame retardant additives. 2. APPLICATION This specification was released originally for colored transparent material used for lamp filter. 3. REQUIREMENTS Material specification requirements are to be used for i
4、nitial 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 3 - 6 g/10 minutes (ISO 1133/ASTM D 1238
5、 320 C, 2, 16 kg) The material shall be dried for 4 h minimum at 130 - 140 C in a mechanical 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
6、specimens. The following 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 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 ann
7、ealing allowed. ENGINEERING MATERIAL SPECIFICATIONWSK-M4D626-A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 5 3.5.2 Density 1.19 - 1.21 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Yield, min 65 MPa (ISO R 527/ASTM D 638M, 150
8、min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed) 3.5.3.1 Elongation at Break, min 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 23 620-
9、935 MPa (ASTM D 4065, forced constant amplitude, 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 +180 C temperature range, at 5 C mini
10、mum intervals. The plotted curve must be within tolerance range shown on page 5. 3.5.6 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) 3.5.6.1 At 23 +/- 2 C 20 kJ/m2 3.5.6.2 At -40 +/- 2 C 15 kJ/m2The test specimens
11、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. 3.5.7 Heat Deflection Temperature, min (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2
12、 mm specimen) 3.5.7.1 At 1.82 Mpa 155 C 3.5.7.2 At 0.45 Mpa 168 C ENGINEERING MATERIAL SPECIFICATIONWSK-M4D626-A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 5 3.5.8 Heat Aging Performance (ISO 188/ASTM D 573, 1000 h at 140 +/- 2 C. Unaged property values
13、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 to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795) Burn Rate 0 mm
14、/minute (SE) The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 3.7 WEATHERING RESISTANCE After exposure in accordance with 3.7.1 and 3.7.2 the material shall show no fading or color change in excess of specified AATCC rating (AATCC Gray Scale for E
15、valuating Change in Color, 10 step). In addition, there shall be no cracking, crazing or other deterioration. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved by washing with mild detergents and water (ratio 5:95 by volume). 3.7.2 Xenon Arc Weather
16、ometer Rating 4-5 (SAE J 1885, 1240- kJ/m2exposure minimum, specimen size: 150 x 100 mm minimum, 3.2 +/- 0.2 mm thick, molded in smooth polished mold) 3.7.3 12 months Florida Rating 4-5 (FLTM BI 160-01, 5 south, under glass, specimen size: 150 x 100 mm, minimum, 3.2 +/- 0.2 mm thick, molded in smoot
17、h polished mold) 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) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D626-A2 Printed copies are un
18、controlled Copyright 2010, Ford Global Technologies, LLC Page 4 of 5 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 0.8 - 0.9% 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at
19、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 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-A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 5
