1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 06 26 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 2001 06 22 Revised Update A. Cockman 1995 02 01 Released EP00E10460360001 L. Rodigas Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 4
2、 THERMOPLASTIC POLYESTER-ETHER ELASTOMER (TEEE), WSK-M4D893-A1 66 DUROMETER D HARDNESS MOLDING COMPOUND THERMOPLASTIC POLYESTER-ETHER ELASTOMER (TEEE), WSK-M4D893-A2 66 DUROMETER D HARDNESS, HEAT STABILIZED MOLDING COMPOUND 1. SCOPE The materials defined by these specifications are a rigid thermopla
3、stic polyester-ether elastomer (TEEE) molding compounds, 66 durometer D hardness. WSK-M4D893-A2 material has added heat stabilisation. 2. APPLICATION These specifications were released originally for materials used for functional automotive applications such as damping bushes, etc. 3. REQUIREMENTS M
4、aterial specification requirements are to be used for initial qualification of materials. 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). 3.4 MOLDING COMPOUND (s) 3.
5、4.1 Melt Flow Rate Range 10 - 15 g/10 minutes (ISO 1133, 240 C, 2.16 kg) The material shall be dried for 1 h minimum at 135 C in a mechanical convection oven immediately preceding the test. 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be car
6、ried 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 test specimen A and/or B. The specimen
7、s shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 1.18 - 1.30 g/cm3(ISO 1183, Method A) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D893-A1/A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 4 3.5.3 Hardness, Durometer D, min 61 (ISO 86
8、8, 15 s dwell) (s) 3.5.4 Tensile Strength at Yield, min 22 MPa (ISO R 527, 150 min x 10 x 4.0 +/-0.2 mm specimen, 50 mm/minute test speed) (s) 3.5.4.1 Elongation at Yield, min 18% (Test Method according to para 3.4.4) (s) 3.5.5 Flexural Modulus, min 400 MPa (ISO 178, 80 x 10 x 4.0 +/- 0.2 mm specime
9、n, 2 mm/minute test speed, 64 mm support span) 3.5.6 Shear Modulus at 23 C 210 - 340 MPa (ASTM D 4065, forced constant amplitude, fixed frequency of 1Hz +/- 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 m
10、m. 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 ranges shown on page 4. (s) 3.5.7 Impact Strength, Izod, m
11、in (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 18 kJ/m23.5.7.2 At -40 +/- 2 C 3 kJ/m23.5.7.3 At -10 +/- 2 C 9 kJ/m The test specimens must be conditioned for minimum of 6 h at the above specified temperature prior to impact test. Low temperature
12、testing shall be done within the cold box. (s) 3.5.8 Heat Deflection Temperature, min (ISO 75, 120 x 10 x 4.0 +/- 0.2 mm specimen, 0.32 +/- 0.01 mm deflection) 3.5.8.1 At 1.80 MPa 45 C 3.5.8.2 At 0.45 MPa 105 C 3.5.9 Heat Aging Performance (ISO 188, except 150 +/- 50 air changes/h, WSK-M4D893-A1 - 1
13、000 at 90 +/- 2 C and WSK-M4D893-A2 - 1000 at 110 +/- 2 C. Unaged property values shall be determined at the time of the aged properties determination) ENGINEERING MATERIAL SPECIFICATIONWSK-M4D893-A1/A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 3.5.9.1
14、 Tensile Strength at Yield, Change, max -25% (Test Method per para 3.5.4) 3.5.9.2 Impact Strength, Izod Change, max -25% (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 and 16 h) Fo
15、g Number, min 90 Formation of 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 material approval is 355 x 100 x 1.0 +/- 0.1 mm with a smooth surface. 5. GENERAL INFORMATION The information given below is
16、provided for clarification and assistance in meeting the requirements of these specifications. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 5 - 11-5/ C (ASTM E 228 or 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
17、 Molding Shrinkage After 48 h at 23 +/- 2 C 1.3 - 1.8% 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 0.1 - 0.3% After 30 minutes at 120 C 0.2 - 0.5% 5.3 RECYCLING CODE TEEE ENGINEERING MATERIAL SPECIFICATIONWSK-M4D893-A1/A2 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4
