1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2011 03 01 No replacement named A. Pan, APAN Status 2005 11 11 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.8, 3.9 & 4 1989 11 20 Released NB00I10043054009 L.W. Moriarty L.A. Graham Printed copies are uncontrolled Copyright 2011, Ford Global
2、 Technologies, LLC Page 1 of 4 THERMOPLASTIC ETHER ESTER ELASTOMER (TEEE) WSB-M4D683-A MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a rigid thermoplastic elastomer injection molding compound based on polyether ester copolymer. 2. APPLICATION T
3、his specification was released originally for material used for the instrument panel tambour door. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producer must c
4、onform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 8 - 16 g/ (ISO 1133/ASTM D 1238, 10 minutes 240 C, 2.16 kg) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be car
5、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
6、s shall be prepared according to ISO 294. No annealing allowed. 3.5.2 Density 1.17 - 1.23 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Hardness, Durometer D 42 - 50 (ISO 868/ASTM D 2240, 15 s dwell) ENGINEERING MATERIAL SPECIFICATIONWSB-M4D683-A Copyright 2011, Ford Global Technologies, LLC
7、 Page 2 of 4 Printed copies are uncontrolled interval - 3 minutes minimum) 3.5.4 Tensile Strength at Max Load, min 15 MPa (ISO R 527/ASTM D 638M, 150 min x 10 x 4.0 +/- 0.2 mm specimen, 50 mm/min test speed) 3.5.4.1 Elongation at Break, min 150% (Test Method according to para 3.5.4) 3.5.5 Flexural M
8、odulus, min 230 MPa (ISO 178/ASTM D 790M, Method I, Procedure A, 80 x 10 x 4.0 +/- 0.2 mm specimen, 64 mm support span) 3.5.6 Shear Modulus at 23 C 118 - 130 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
9、 cut from the center of specimen A. Specimen length between clamps 35-40 mm. Soak time at each temperature Additionally, a Shear Modulus vs. Temperature curve shall be plotted for -50 to +200 C temperature range, at 5 C minimum intervals. The plotted curve must be within tolerance range shown on pag
10、e 4. 3.5.7 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) 3.5.7.1 At 23 +/- 2 C 380 J/m23.5.7.2 At -40 +/- 2 C 100 J/m2 3.5.7.3 At -20 +/- 2 C 130 J/m2The test specimens must be conditioned for minimum of 6 h at the
11、 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. 3.5.8 Heat Deflection Temperature, min 45 C (ISO 75/ASTM D 648, 120 x 10 x 4.0 +/-0.2 mm specimen. At 0.45 MPa) All specimens
12、dry as molded. If not tested immediately after molding, specimens must be stored in a sealed, moisture-proof container filled with silica gel. 3.5.9 Heat Aging Performance (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 80 +/- 2 C. Unaged property values shall be determined at the time of t
13、he aged properties determination) ENGINEERING MATERIAL SPECIFICATIONWSB-M4D683-A Copyright 2011, Ford Global Technologies, LLC Page 3 of 4 Printed copies are uncontrolled 3.5.9.1 Tensile Strength Change +/- 25% (Test Method per para 3.5.4) 3.5.9.2 Impact Strength, Izod Change +/- 25% (Test Method pe
14、r para 3.5.7.1, 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 1.5 +/- 0.1 mm with a smooth surface. 3.7 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test condit
15、ioning 1 h and 16 h) Fog Number, min 90 Formation of clear film, droplets or crystals is cause for rejection. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION
16、 (ASTM D 696) 5.1.1 Parallel to Flow 4.8 - 5.7-5/ C 5.1.2 Perpendicular to Flow 6.1 - 6.6-5/ 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 1.8 - 2.2% 5.2.2 Post Shrinkage (Separate specimens required for each test) After 48 h at 80 C 1.9 - 2.2% After 30 min at 120 C 1.9 - 2.3% ENGINEERING MATERIAL SPECIFICATIONWSB-M4D683-A Copyright 2011, Ford Global Technologies, LLC Page 4 of 4 Printed copies are uncontrolled
