1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 08 N-STATUS No replacement named J. Crist, NA 2005 09 21 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 & 4 1989 04 24 Released CVS1-DR192292 A.K. Christoff Printed copies are uncontrolled Copyright 2010, Ford Global Technologie
2、s, LLC Page 1 of 4 POLYPHENYLENE ETHER (PPE), MODIFIED MOLDING WSB-M4D634-A COMPOUND, 16% GLASS FIBER REINFORCED NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a glass fiber reinforced thermoplastic compound based on polyphenylene ether modified with high impact
3、 polystyrene. 2. APPLICATION This specification was released originally for material used for a carrier for vinyl roofing (skull cap) and instrument panel substrates. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS
4、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 Glass Fiber Content 14 - 18% (ISO 3451/1, Method A, 1 h at 750 +/- 50 C) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation
5、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 3167) B. 120 x 10 x 4.0 +/- 0.2 mm Specimens with shorter dimensions shall be cut fr
6、om 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 1.15 - 1.20 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Max Load, min 56 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0
7、.2 mm specimen, 5 mm/min test speed) ENGINEERING MATERIAL SPECIFICATIONWSB-M4D634-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 3.5.4 Flexural Modulus, min 4.0 GPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm supp
8、ort span) 3.5.5 Shear Modulus at 23 C 1.08 - 1.81 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. Additionally, a Shear Modulus vs. Temperature curve shall be plotted for
9、 -50 to +120 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on page 4. 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 5.0 kJ/m23.5.
10、6.2 At -40 +/- 2 C 3.5 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, if not possible, test can be conducted outside, but within 5 s. 3.5.7 Heat Deflection Temperature,
11、 min (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/- 0.2 mm specimen) 3.5.7.1 At 1.82 MPa 115 C 3.5.7.2 At 0.45 MPa 121 C 3.5.8 Vicat Softening Temperature, min (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.) All speci
12、mens dry as molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 3.5.8.1 At 9.8 N 130 C 3.5.8.2 At 49.0 N 118 C ENGINEERING MATERIAL SPECIFICATIONWSB-M4D634-A Printed copies are uncontrolled Copyright 2010, Ford Globa
13、l Technologies, LLC Page 3 of 4 3.5.9 Heat Aging Performance (ISO 188/ASTM D 573, 1000 h at 100 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9.1 Tensile Strength Change +/- 15% (Test Method per para 3.5.3) 3.5.9.2 Impact Strength, Izod Cha
14、nge +/- 15% (Test Method per para 3.5.6.1, specimens to be notched before heat aging) 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 2.5 +/- 0.1 mm with a smooth surface. 5. GENERAL INFORMATION The information given below is p
15、rovided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 2.4-5/ C (ASTM D 696, 0 to 100 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
16、23 +/- 2 C 0.2 - 0.3% 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.2 - 0.4% 5.3 ELONGATION AT BREAK 4% (Test Method acc. to para 3.5.3) ENGINEERING MATERIAL SPECIFICATIONWSB-M4D634-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4
