1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 11 19 N-STATUS Replaced by WSK-M4D790-A J. Crist, NA 2005 05 31 Revised Inserted 3.0; Deleted 3.1, 3.4.1, 3.5.4, 3.6 & 4 1983 06 17 Released (Was XF-M4DX146) Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Pa
2、ge 1 of 2 POLYBUTYLENE TEREPHTHALATE, 30% GLASS FIBER ESF-M4D354-A7 REINFORCED - IMPACT MODIFIED - LOW WARPAGE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a glass fiber reinforced, impact modified polybutylene terephthalate resin with high heat resistance, go
3、od electrical resistance, and improved dimensional stability. 2. APPLICATION This specification was released originally for material used for the height sensor rod. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys S
4、tandard Requirements For Production Materials (WSS-M99P1111-A). 3.2 FLAMMABILITY, max 101 mm/min (FLTM BN 024-02, without the lot sampling plan) In addition, the test specimen shall not exhibit any flashing or sudden flaming on either surface in excess of the above max value. 3.3 VIRGIN MOLDING COMP
5、OUND 3.3.1 Flow Rate, max 17.0 g/10 min (ASTM D 1238, Condition “T“) 3.3.2 Filler Content, by weight 28 - 32% (1 h at 649 C) 3.4 MOLDED TEST SPECIMEN The following requirements are intended for initial source qualifications, and Initial Sample Inspection Report. These will be rechecked at intervals
6、specified by Quality Assurance. 3.4.2 Specific Gravity 1.48 - 1.52 (ASTM D 792) 3.4.3 Tensile Strength, min 110 MPa (ASTM D 638, 5 mm/min) 3.4.4 Flexural Modulus, min 6.6 GPa (ASTM D 790) ENGINEERING MATERIAL SPECIFICATIONESF-M4D354-A7Printed copies are uncontrolled Copyright 2009, Ford Global Techn
7、ologies, LLC Page 2 of 2 3.4.5 Flexural Strength, min 179 MPa (ASTM D 790) 3.4.6 Impact Strength, Izod, min (ASTM D 256) Notched 96 J/m Unnotched 640 J/m 3.4.7 Deflection Temperature, min 161 C (ASTM D 648, 1.82 MPa load) 3.4.8 Water Absorption, max 0.1% (ASTM D 570, 24 h) 3.4.9 Dielectric Strength,
8、 min 18 kV/mm (ASTM D 149, short time) 3.4.10 Arc Resistance, min 100 s (ASTM D 495) 3.5 MOLDED PART 3.5.1 Color Natural or as specified on engineering drawing. 3.5.2 Appearance Shall be uniform in density, texture and finish, free of visible porosity, warpage, heat scorch, checks, cracks, chipped e
9、dges and uneven surfaces. They shall also be free of other contamination. 3.5.3 Regrind and/or Blended Material Must meet Q101 Appendix D, or limits as specified on the engineering drawing. 3.5.5 The following requirements will be used as acceptance criteria for molded parts. The tests indicated wil
10、l be conducted by Ford Motor Company at its option or by the part molder as specified by the affected Design Engineering Activity or SQA. . Flow Rate, max Two times the actual value (ASTM D 1238, Condition “T“) obtained for virgin material from the same batch from which the part was molded. . Filler Content, by weight 28 - 32% (1 h at 649 C) 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 DEFLECTION TEMPERATURE 200 C (ASTM D 648, 0.45 MPa load)
