1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 28 N-STATUS Use industry standard C. Mracna, NA 2004 09 21 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.4, 3.7, 3.8 & 4 1990 03 14 Released C10064576 P Thomas Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC P
2、age 1 of 3 THERMOPLASTIC POLYESTER ETHER ELASTOMER WSD-M2D428-A (TEEE), 45 DUROMETER D HARDNESS NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a melt-processable polyester ether elastomer (TEEE) for use where retention of visual appearance after outdoor exposure
3、 is not required. 2. APPLICATION This specification was released originally for a material used as a drive shaft dust boot. The material can withstand prolonged exposure to temperatures up to 100 C. Being thermoplastic, the material will soften and creep significantly under load at temperatures exce
4、eding 110 C. 3. REQUIREMENTS 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). 3.3 DYNAMIC MECHANICAL ANALYSIS Ford Motor Company, at its option, may establish shear m
5、odulus/damping vs. temperature curves plotted for -50 to +150 C temperature range for material/parts supplied to this specification. The shear modulus and damping curves established for initial approval shall constitute the reference standard and shall be kept on file at the designated material labo
6、ratory. All samples shall produce shear modulus and damping curves that correspond to the reference standard when tested under the same conditions. 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified, all test shall be conducted on specimens die cut from injection
7、 molded plaques 150 x 100 x 2.0 +/- 0.2 mm. The plaques shall be molded according to ISO 294 and film gated along the upper 100 mm edge. No annealing allowed, unless specified otherwise. 3.5.2 Density 1.14 - 1.16 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) 3.5.3 Hardness, Durometer D 40 - 50 (IS
8、O 868/ASTM D 2240, instantaneous, plied-up specimen) 3.5.4 Tensile Strength, min 20 MPa (ISO R 527, type 2/ASTM D 412, Die C, 500 mm/min test speed) ENGINEERING MATERIAL SPECIFICATIONWSD-M2D428-APrinted copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 3 3.5.4.1 Elongat
9、ion at Break, min 300% (Test acc. to para 3.5.4) 3.5.5 Modulus at 100% Elongation, min 10.0 MPa (Test acc. to para 3.5.4) 3.5.6 Tear Strength, min (ISO 34, Method B, procedure a/ ASTM D 624, Die C) 3.5.6.1 Parallel to Flow 100 kN/m 3.5.6.2 Perpendicular to Flow 100 kN/m 3.5.7 Compression Set, max (I
10、SO 815, Large Type-plied specimen/ /ASTM D 395, Method B, Type 1 plied specimen) 3.5.7.1 22 h at 70 +/- 1 C 62% 3.5.7.2 70 h at 100 +/- 2 C 89% 3.5.7.3 1,000 h at 100 +/- 2 C 90% 3.5.8 Brittleness Point, max -50 C (ISO 812, Type B specimen/ ASTM D 2137, Method A) 3.5.9 Ozone Resistance, max Rating 0
11、 (FLTM BP 101-01, Procedure A, tensile specimen, at 20% elongation) 3.5.10 Heat Aging (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1,000 h at 100 +/- 2 C) 3.5.10.1 Hardness Change, max +/- 5 3.5.10.2 Tensile Strength Change, max -10% 3.5.10.3 Elongation Change, max -10% 3.5.11 Immersion in Oil No.
12、 1 (ISO 188/ASTM D 573, 168 h at 100 +/- 2 C) 3.5.11.1 Hardness Change, max +/- 8 3.5.11.2 Tensile Strength Change, max -10% 3.5.11.3 Elongation Change, max +/- 15% 3.5.12 Immersion in Approved Grease of Affected Model Year (see para 5.3) (FLTM BP 117-01, 1,000 h at 100 +/- 2 C) ENGINEERING MATERIAL
13、 SPECIFICATIONWSD-M2D428-APrinted copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 3 of 3 3.5.12.1 Hardness Change, max +/- 10 3.5.12.2 Tensile Strength Change, max -10% 3.5.12.3 Elongation Change, max +/- 30% 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute The spe
14、cimen size required for material approval is 355 x 100 x 2.0 +/- 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 specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 10-5C (ASTM D
15、696) 5.2 MOLD SHRINKAGE (ISO 2577, 150 x 100 x 2.0 +/- 0.2 mm injection molded specimen) 5.2.1 Molding Shrinkage . After 48 h at 23 +/- 2 C 1.2 - 1.5% 5.2.2 Post Shrinkage (Separate specimens required for each test) . After 48 h at 80 +/- 2 C 0.1 - 0.7% . After 30 minutes at 120 +/- 2 C 0.2 - 0.7% 5
16、.3 For information on currently approved greases and other materials required for use in this specification contact: Materials Laboratory 13/100 Fluids Material Section Research and Engineering Centre Coolants/Greases Ford Motor Co. Ltd. Engine Engineering Laindon Basildon Ford Motor Co. Essex SS15 6EE PO Box 2053 England 21500 Oakwood Blvd. Dearborn, MI 48121, USA Materials Engineering Product Engineering Office Ford Motor Co. of Australia Ltd Princes Highway, Norlane Victoria 3214, Australia 5.4 RECYCLING CODE TEEE
