1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 19 N-STATUS No replacement named J. Crist, NA 2006 04 12 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1992 02 03 Released NB00I10043054153 M. Myers Printed copies are uncontrolled Copyright 2010, Ford Global Technologies,
2、LLC Page 1 of 4 POLYARYLSULFONE (PAS) MOLDING COMPOUND WSB-M4D835-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a high heat resistant polyarylsulfone (PAS) injection molding compound. 2. APPLICATION This specification was released originally for material used
3、 for low profile headlamp reflectors. 3. REQUIREMENTS 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 7 - 15 g/ (ISO 1133/A
4、STM D 1238, 343 C, 2.16 kg) 10 minutes 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 (Tensile Bar, ISO 31
5、67) 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 1.34 - 1.40 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile
6、 Strength at Yield, min 80 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/minute test speed) 3.5.4 Flexural Modulus, min 2.5 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) ENGINEERING MATERIAL SPECIFICATIONWSB-M4D835
7、-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 3.5.5 Shear Modulus at 23 C 820 - 1240 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 sp
8、ecimen 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 +230 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown o
9、n page 4. 3.5.6 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) 3.5.6.1 At 23 +/- 2 C 3.5 kJ/m23.5.6.2 At -40 +/- 2 C 2.5 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specified temperatu
10、re 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 175 C (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen. At 1.82 MPa) 3.5.8 Heat Aging Performance (ISO 188/
11、ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 200 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.8.1 Tensile Strength at 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
12、, specimens to be notched before heat aging) 3.6 FOGGING (FLTM BO 116-03) Fog Number, min 90 Formation of excessive amounts of clear film or droplets is cause for rejection. 3.7 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.3 +
13、/- 0.1 mm with a smooth surface. ENGINEERING MATERIAL SPECIFICATIONWSB-M4D835-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 4 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of thi
14、s specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 4.9-5/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 0.6% 5.3 HEAT DEFLECTION TEMPERATURE, min 198 C (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen. At 0.45 MPa) 5.4 RECYCLING CODE SAE or PAS PAS OPTIONAL ENGINEERING MATERIAL SPECIFICATIONWSB-M4D835-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4
