1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 21 N-STATUS No replacement named J. Crist, NA 2006 06 14 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1996 01 19 Activated L. Rodigas Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of
2、4 THERMOPLASTIC POLYOLEFIN ELASTOMER (TEO), 40% WSS-M4D940-A1 GLASS FIBER REINFORCED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a rigid 40% glass fiber reinforced thermoplastic polyolefin elastomer (TEO) injection molding compound with good
3、impact resistance. 2. APPLICATION This specification was released originally for material used for engine undershields - noise insulation. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For P
4、roduction Materials (WSS-M99P1111-A). 3.1.1 All requirements of this specification, identified by symbol (s), shall be met with data representing 3 sigma values. 3.4 MOLDING COMPOUND (s) 3.4.1 Melt Flow Rate 3 - 12 g/10 minutes (ISO 1133, 230 C, 2.16 kg) (s) 3.4.2 Glass Fiber Content 38 - 42% (ISO 3
5、451/1, Method A, 3 h at 650 +/- 25 C, test portion 1 to 2 g) 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 minimum x 10 x 4.0 +/- 0
6、.2 mm (ISO 3167, Type 1A) B. 60 x 60 x 2.0 +/- 0.1 mm (ISO/DIS 294-3) C. 355 x 100 x 1.0 +/- 0.1 mm (ISO 3795) Test specimen A shall be molded using molding conditions defined in ISO 3167. Specimens with shorter dimensions shall be cut from the center of the specimen A. No annealing allowed. ENGINEE
7、RING MATERIAL SPECIFICATIONWSS-M4D940-A1Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 3.5.2 Density 1.17 - 1.23 g/cm (ISO 1183, Method A) 3.5.3 Hardness, Durometer D 60 - 70 (ISO 868, 15 s dwell) (s) 3.5.4 Tensile Strength at Yield, min 52 MPa (ISO R 527-1
8、 & ISO 527-2, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, test speed: 50 mm/minute) (s) 3.5.5 Flexural Modulus, min 5.0 GPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen (use center section of specimen A), 2 mm/min test speed, 64 mm support span) 3.5.6 Shear Modulus at 23 C 0.72 - 1.2 GPa (ASTM D 5279
9、, 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 versu
10、s temperature curve shall be plotted for -50 to +150 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range granted on the original material approval and it shall constitute the reference standard for materials supplied to this specification and shall be kept
11、 on file at the designated material laboratory and be available on request. (s) 3.5.7 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen (use center section of specimen A), 10 specimens for each test) 3.5.7.1 At 23 +/- 2 C 13 kJ/m 3.5.7.2 At 10 +/- 1 C 10 kJ/m 3.5.7.3 At -40 +
12、/- 1 C 8 kJ/m The 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 chamber, if not possible, test may be conducted outside, but within 5 seconds. (s) 3.5.8 Heat Deflection Temperature,
13、 min 115 C (ISO 75-1 & ISO 75-2, 120 x 10 x 4.0 +/- 0.2 mm specimen (use center section of specimen A), edgewise, 0.32 +/- 0.01 mm deflection. At 1.80 MPa.) ENGINEERING MATERIAL SPECIFICATIONWSS-M4D940-A1Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 4 3.5.9
14、Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, 1000 h at 140 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) 3.5.9.1 Tensile Strength at Yield Change +/- 25% (Test Method per para 3.5.4) 3.5.9.2 Impact Strength, Izod Change, ma
15、x -15% (Test Method per para 3.5.7.1, specimens to be notched before heat aging) 3.6 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h) Fog Number, min 80 Formation of a clear film, droplets or crystals is cause for rejection. 3.7 FLAMMABILITY (ISO 3795/SAE J36
16、9) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.0 +/- 0.1 mm (use specimen C) 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.
17、1 COEFFICIENT OF LINEAR THERMAL EXPANSION 10 23-5/ C (ASTM E 831 TMA, temperature range 20 to +100 C) 5.2 MOLD SHRINKAGE (ISO/DIS 294-3, 60 x 60 x 2.0 +/- 0.1 mm injection molded specimen) 5.2.1 Molding Shrinkage After 48 h at 23 +/- 2 C Injection Direction (ID) 0.1 - 0.2% Across Injection Direction
18、 (AID) 0.5 - 1.0% ENGINEERING MATERIAL SPECIFICATIONWSS-M4D940-A1Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C (Across Injection Direction AID 0.1 - 0.2% . After 30 min a
19、t 120 C (Across Injection Direction AID) 0.1 - 0.3% 5.3 MODULUS OF ELASTICITY 5.0 GPa (ISO 527-1 & 527-2, 150 minimum x 10 x 4 +/- 0.2 mm specimen, test speed: 1 mm/minute) 5.4 IMPACT STRENGTH, CHARPY (ISO 179/leA, 80 X 10 X 4.0 +/- 0.2 mm specimen (use center section of specimen A), 10 specimens fo
20、r each test) 5.4.1 At 23 +/- 2 C tbd 5.4.2 At -40 +/- 1 C tbd The test specimens must be conditioned for minimum of 6 hours at the above specified temperature prior to impact test. Low temperature testing shall be done within the cold chamber, if not possible, test may be conducted outside, but with
21、in 5 seconds. 5.5 HEAT DEFLECTION TEMPERATURE tbd (ISO 75-1 & ISO 75-2, 80 x 10 x 4.0 +/- 0.2 mm specimen (use center section of specimen A), flatwise, 0.34 +/- 0.01 mm deflection. At 1.80 MPa) All specimens dry as molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 5.6 MATERIAL IDENTIFICATION FOR RECYCLING PURPOSES PP+EPDM-GF40
