1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 08 N-STATUS No replacement named J. Crist, NA 2005 07 25 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.6, 3.7 & 4 1990 08 08 Released NB00I10043054036 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page
2、1 of 2 THERMOPLASTIC POLYURETHANE (TPU) MOLDING ESA-M4D568-A COMPOUND, 40% LONG GLASS FIBER FILLED NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an injection moldable, long glass fiber reinforced thermoplastic polyurethane molding compound, which exhibits high
3、impact resistance and high flexural properties. 2. APPLICATION This specification was released originally for material used for parking brake foot control release handles. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Com
4、panys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MOLDING COMPOUND 3.4.1 Glass Fiber Content 38-42% (ASTM D 2584, 2 h at 540 C) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on injection molded test spe
5、cimens. The specimens shall be prepared according to ASTM D 1897. No annealing allowed. 3.5.2 Density 1.47-1.57 g/cm3(ASTM D 792, Method A1) 3.5.3 Tensile Strength, min 140 MPa (ASTM D 638, Type I specimen, 5 mm/min test speed) 3.5.4 Tensile Modulus, min 9.0 GPa (Test Method according to 3.5.3) 3.5.
6、5 Flexural Modulus, min 9.4 GPa (ASTM D 790, Method I, Procedure A, 127 x 12.7 x 3.2 mm specimen) ENGINEERING MATERIAL SPECIFICATIONESA-M4D568-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 2 3.5.6 Flexural Strength, min 250 MPa (Test Method according to 3.
7、5.5) 3.5.7 Impact Strength, Izod, min (ASTM D 256, Method A, 63.5 x 12.7 x 3.2 mm specimen) At 23 +/- 2 C 290 J/m At -40 C 235 J/m 3.5.8 Heat Deflection Temperature, min 93 C (ASTM D 648, 127 x 12.7 x 3.2 mm specimen, at 1.82 MPa) 3.5.9 Compressive Strength, min 100 MPa (ASTM D 695, 12.7 x 12.7 x 25
8、 mm specimen, 2.5 mm/min test speed) 3.5.10 Color Black or as specified onengineering drawing 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 GLASS FIBERS Typ E-Glass Size 12.7 +/- 3.2 mm (0.500 +/- 0.125 in)
