1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 22 N-STATUS No replacement named J. Crist, NA 2006 05 18 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1992 05 01 Released EP00E10176267000 P. Kuntze Printed copies are uncontrolled Copyright 2010, Ford Global Technologies,
2、 LLC Page 1 of 4 POLYCARBONATE + POLYBUTYLENE THEREPHTHALATE WSK-M4D848-A BLEND (PC+PBT) SHEET, 30% LONG GLASS FIBERS REINFORCED NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a sheet composed of PC+PBT matrix, with 30% by weight long glass fiber reinforcement.
3、This sheet is specifically designed for thermoplastic stamping. 2. APPLICATION This specification was released originally for material used to manufacture sunseeker. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys
4、Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MOLDED TEST SPECIMEN 3.4.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on test specimens machined and milled from thermoformed test sheets. The following dimensions are required: A. 150 m
5、in 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 annealing allowed. 3.4.2 Glass Fiber Content 26 - 34% (ISO 34
6、51/1, Method A, 1 h at 650 +/- 25 C) 3.4.3 Density 1.35 - 1.50 g/cm (ISO 1183, Method A/ASTM D 792, Method A1) 3.4.4 Tensile Strength at Max Load, min (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 5 mm/minute test speed) . Production Direction 85 MPa . Transverse Direction 60 MPa E
7、NGINEERING MATERIAL SPECIFICATIONWSK-M4D848-APrinted copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 4 3.4.5 Flexural Modulus, min 5.0 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span, the radi
8、us of the loading nose 5.0 +/- 0.1 mm and of the supports 2.0 +/- 0.2 mm) 3.4.6 Shear Modulus at 23 C 1.5 - 2.5 GPa (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. Specimen l
9、ength 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 on page 4. 3.4.7 Impac
10、t 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) 3.4.7.1 At 23 +/- 2 C 30 kJ/m 3.4.7.2 At -40 +/- 2 C 30 kJ/m The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test
11、. Low temperature testing shall be done within the cold box, if not possible, test can be conducted outside, but within 5 s. 3.4.8 Heat Deflection Temperature, min (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen, at standard deflection of 0.32 +/- 0.01 mm) 3.4.8.1 At 1.80 MPa 165 C 3.4.8.2 At
12、 0.45 MPa 200 C 3.4.9 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 120 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.4.9.1 Tensile Strength at Load Change, max -30% (Test Method per para 3.4.4) 3.4.9.2 Impac
13、t Strength, Izod Change +/- 15% (Test Method per para 3.4.7.1, specimens to be notched before heat aging) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D848-APrinted copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 3.5 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute T
14、he specimen size required for material approval is 355 x 100 x 2.0 +/- 0.1 mm with a smooth surface. 3.6 FOGGING (FLTM BO 116-03) Fog Number, min 90 Formation of excessive amounts of clear film or droplets is cause for rejection. 5. GENERAL INFORMATION The information given below is provided for cla
15、rification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 2.0-5/ 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 0.1 - 0.3% 5.2
16、.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 0.1 - 0.4% . After 30 min at 120 C 0.1 - 0.4% 5.3 RECYCLING CODE SAE or PC+PBT-GF30 PC+PBT-GF30 OPTIONAL ENGINEERING MATERIAL SPECIFICATIONWSK-M4D848-APrinted copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4
