1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 14 N-STATUS No replacement named J. Crist, NA 2006 01 30 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1994 09 01 Released EP00E10348605000 K. Gerhards Printed copies are uncontrolled Copyright 2010, Ford Global Technologie
2、s, LLC Page 1 of 4 POLYARYLSULFONE (PAS), HEAT STABILIZED, WSK-M4D773-A2 20% GLASS FIBER REINFORCED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a heat stabilized, 20% glass fiber reinforced polyarylsulfone molding compound. 2. APPLICATION Thi
3、s specification was released originally for material used for ball bearing cases. 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). 3.1.1 All requireme
4、nts of this specification, identified by symbol(s), shall be met with data representing 3 sigma values. 3.4 MOLDING COMPOUND (s) 3.4.1 Glass Fiber Content 18 - 22% (ISO 3451/4, test temperature 600 +/- 25 C, test portion 1 g) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherw
5、ise 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 3167) B. 120 x 10 x 4.0 +/- 0.2 mm Specimens with shorter dimensions shall be cut from the center portion of the te
6、st specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 1.48 - 1.56 g/cm3(ISO 1183, Method A) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D773-A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 (s) 3.5.3
7、Tensile Strength at Max Load, min 95 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed) (s) 3.5.4 Flexural Modulus, min 6.1 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span) 3.5.5 Shear Modulus at 23 C 1.5 - 2.2 GPa (ASTM D 4065,
8、 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. Specimen length between clamps 35-40 mm. Soak time at each temperature interval - 3 minutes minimum). Additionally, a Shear Modulus versus
9、Temperature curve shall be plotted for -50 to +220 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 4. (s) 3.5.6 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.6.1 At 23 +/- 2 C 3
10、.6 kJ/m23.5.6.2 At -40 +/- 1 C 3.3 kJ/m2The test specimens 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. (s) 3.5.7 Heat Deflection Temperature, min 204 C (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm sp
11、ecimen, 0.32 +/- 0.01 mm deflection. At 1.82 MPa) 3.5.8 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 200 +/- 2 C. After heat aging test specimens are to be conditioned in a desiccator for 3 - 5 h at 23 +/- 2 C. Unaged property values shall be determined at the time of
12、the aged properties determination) 3.5.8.1 Tensile Strength at Max Load Change +/- 25% (Test Method per para 3.5.3) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D773-A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 4 3.5.8.2 Impact Strength, Izod Change +/- 25% (
13、Test Method per Para 3.5.6.1, specimens to be notched before heat ageing) 3.6 FOGGING (FLTM BO 116-03, 3 h at 100 C) Fog Number, min 80 Formation of a clear film, droplets or crystals is cause for rejection. 3.7 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for mate
14、rial approval is 355 x 100 x 1.3 +/- 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 this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 2 6-5/ C (ASTM E 831 TMA, temperature rang
15、e -30 to +30 C) 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 0.1 - 0.4% 5.3 RECYCLING CODE PAS-GF20 ENGINEERING MATERIAL SPECIFICATIONWSK-M4D773-A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4
