1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 12 N-STATUS No replacement named J. Crist, NA 2005 11 30 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1995 04 03 Released EP00E10460370000 L. Rodigas Printed copies are uncontrolled Copyright 2010, Ford Global Technologies
2、, LLC Page 1 of 4 THERMOPLASTIC POLYOLEFIN ELASTOMER (TEO) WSK-M4D698-A3 50 DUROMETER D HARDNESS MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a semi-rigid thermoplastic polyolefin elastomer (TEO) injection molding compound, 50 durometer D hard
3、ness. 2. APPLICATION This specification was released originally for material used for unexposed shields - door lock. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (W
4、SS-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 15 - 28 g/10 minutes (ISO 1133, 230 C, 5.0 kg) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless
5、 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 from the center portion of
6、 the test specimen A and/or B. The specimens shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 0.84 - 0.94 g/cm3(ISO 1183, Method A) 3.5.3 Hardness, Durometer D 45 - 55 (ISO 868, 15 s dwell) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D698-A3 Printed copies are uncontrolled Cop
7、yright 2010, Ford Global Technologies, LLC Page 2 of 4 (s) 3.5.4 Tensile Strength at Yield, min 11 MPa (ISO R 527, 150 minimum x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed) (s) 3.5.4.1 Elongation at Yield, min 5% (Test Method according to para 3.4.4) (s) 3.5.5 Flexural Modulus, min 420 MPa (
8、ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specimen, 2 mm/min test speed, 64 mm support span) 3.5.6 Shear Modulus at 23 C 200 - 300 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 specimen A.
9、 Specimen length between clamps 35-40 mm. Soak time at each temperature interval - 3 minutes minimum). Additionally, a Shear Modulus versus Temperature curve shall be plotted for -50 to +100 C temperature range, at 5 C minimum intervals. The plotted curves must be within tolerance range shown on pag
10、e 4. (s) 3.5.7 Impact Strength, Izod, min (ISO 180/1A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 10 specimens for each test) 3.5.7.1 At 23 +/- 2 C No break 3.5.7.2 At -40 +/- 1 C 7 kJ/m23.5.7.3 At -10 +/- 2 C 45 kJ/m2The test specimens must be conditioned for minimum of 6 h at the above specified temperatu
11、re prior to impact test. Low temperature testing shall be done within the cold box. (s) 3.5.8 Heat Deflection Temperature, min 47 C (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, edgewise, 0.32 +/- 0.01 mm deflection. At 0.45 MPa) 3.5.9 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h,
12、 1000 h at 120 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D698-A3 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 4 3.5.9.1 Tensile Strength at Yield Change +/-
13、25% (Test Method per para 3.5.4) 3.5.9.2 Impact Strength, Izod, min 40 kJ/m2(Test Method per para 3.5.7.1, specimens to be notched before heat aging) 3.6 FOGGING (FLTM BO 116-03, 3 h at 100 C heating, 21 C cooling plate) Fog Number, min 70 Formation of clear film, droplets or crystals is cause for r
14、ejection. 3.7 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The specimen size required for material approval is 355 x 100 x 1.0 +/- 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
15、 specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 20-5/C (ASTM E 831 (TMA), temperature range -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 1.0% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 C 1.1 - 1.3% . After 30 min at 120 C 1.2 - 1.4% 5.3 RECYCLING CODE PP+EPDM ENGINEERING MATERIAL SPECIFICATIONWSK-M4D698-A3 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4
