1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 11 19 N-STATUS Replaced by WSK-M4D750-A J. Crist, NA 2005 02 17 Revised Inserted 3.0; Deleted 3.1.1, 3.2, 3.3, 3.4, 3.5 & 4 1973 09 18 Released F6C-180 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 1 o
2、f 2 POLYESTER, THERMOPLASTIC (PBT), 15% GLASS FILLED ESF-M4D341-C NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a glass fiber filled thermoplastic polyester resin based on polybutylene terephthalate (PBT) with good dimensional stability. 2. APPLICATION This spe
3、cification was released originally for material used for molding wiring connectors for alternators. 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
4、1 MOLDED TEST SPECIMENS 3.1.2 Specific Gravity 1.36 - 1.44 (ASTM D 792) 3.1.3 Water Absorption, max 0.12% (ASTM D 570, 24 h immersion) 3.1.4 Tensile Strength, min 72 MPa (ASTM D 638) 3.1.5 Flexural Strength, min 117 MPa (ASTM D 790) 3.1.6 Compressive Strength, min 90 MPa (ASTM D 695) 3.1.7 Impact S
5、trength, Izod, min 48 J/m (ASTM D 256, 3.2 mm thick specimens) 3.1.8 Heat Deflection Temperature, as 193 C Molded, min (ASTM D 648, 6.4 mm thick specimen. At 1.82 MPa) 3.1.9 Dielectric Strength, min 15.7 kV/mm (ASTM D 149, short time, 3.2 mm thick specimen) 3.1.10 Glass Content, by Weight 13 - 17% E
6、NGINEERING MATERIAL SPECIFICATIONESF-M4D341-C Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 2 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 FLAMMABILITY Not self-extinguishing, slow burning.
