1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 06 11 N-STATUS Replaced by WSK-M4D725-A A. Pan, APA 2005 02 17 Revised Inserted 3.0; Deleted 3.4, 3.5 & 4 1978 12 07 Released AJ1-6000-153 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 3 POLYBUTYL
2、ENE TEREPHTHALATE, 30% GLASS FILLED - ESB-M4D354-A3 SELF EXTINGUISHING - NONPAINTABLE POLYBUTYLENE TEREPHTHALATE, 26% GLASS FILLED - ESB-M4D354-A4 SELF EXTINGUISHING - NONPAINTABLE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are glass fiber reinforced polybut
3、ylene terephthalate resins with high heat resistance, good dimensional stability, high flexural properties, and good electrical resistance. ESB-M4D354-A3: is the same as the ESB-M4D354-A1 grade with the addition of a flame retardant and is nonpaintable. ESB-M4D354-A4: is similar to the ESB-M4D354-A3
4、 grade with a lower fiber glass content. 2. APPLICATION These specifications were released originally for material used for: ESB-M4D354-A3: electrical applications that require self-extinguishing flammability properties. ESB-M4D354-A4: the EGR position switch. 3. REQUIREMENTS 3.0 STANDARD REQUIREMEN
5、TS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). ESB-M4D354-A3 ESB-M4D354-A4 3.1.1 Glass Fiber Content, 30 - 34 24 - 28 by weight, % (1 h at 649 C) 3.2 MOLDED TEST SPECIMEN 3.2.1 Specific G
6、ravity, max 1.65 1.70 (ASTM D 792) 3.2.2 Tensile Strength, MPa, min 103 103 (ASTM D 638) Elongation, % min 2.8 2.5 3.2.3 Flexural Strength, MPa, min 159 159 (ASTM D 790) ENGINEERING MATERIAL SPECIFICATIONESB-M4D354-A3/A4Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Pa
7、ge 2 of 3 ESB-M4D354-A3 ESB-M4D354-A4 3.2.4 Flexural Modulus, GPa, min 6.2 6.2 (ASTM D 790) 3.2.5 Impact Strength, Izod, J/m, min (ASTM D 256) 3.2.5.1 Notched 54 54 3.2.5.2 Unnotched 480 427 3.2.6 Deflection Temperature, C, min (ASTM D 648) At 0.45 MPa 199 199 At 1.82 MPa 193 193 3.2.7 Water Absorpt
8、ion, % max 0.10 0.10 (ASTM D 570, 24 h immersion) 3.2.8 Dielectric Strength, kV/mm, min 16 16 (ASTM D 149, short time) 3.2.9 Flammability, mm/min, SE-0 SE-0 max (FLTM BN 024-02, without the lot sampling plan) In addition, the test specimen shall not exhibit any flashing or sudden flaming on either s
9、urface in excess of the above maximum value. 3.3 MOLDED PART 3.3.1 Color Natural, or as specified on the engineering drawing 3.3.2 Specific Gravity, max 1.62 1.70 (ASTM D 792) 3.3.3 Glass Fiber Content, by weight, % 30 - 34 24 - 28 (1 h at 649 C) 3.3.4 Physical Properties Specific requirements for p
10、hysical properties of molded parts, when required, shall be specified on the engineering drawing. All critical areas with respect to these properties shall be clearly designated on the engineering drawing. ENGINEERING MATERIAL SPECIFICATIONESB-M4D354-A3/A4Printed copies are uncontrolled Copyright 20
11、10, Ford Global Technologies, LLC Page 3 of 3 3.3.5 Molding Quality The molded part shall be free of porosity and voids. 3.3.6 Heat Resistance No visual evidence of shrinkage or distortion, including gate areas, shall be evident on the molded part. The part shall not warp to the extent that fit with
12、 mating parts in ultimate assembly is affected. Test Method: Condition unassembled parts in a mechanical convection oven for 3 h at 143 C (unless otherwise specified on the engineering drawing). 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. 5.1 MOLD SHRINKAGE 0.002 - 0.007 (ASTM D 955) 5.2 COEFFICIENT OF LINEAR THERMAL EXPANSION 6.3 x 10-5/C (ASTM D 696) 5.3 COMPRESSIVE STRENGTH (ASTM D 695) A3 121 MPa A4 117 MPa
