1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 10 12 N-STATUS Replaced by WSS-M4D638-B; Inserted 3.0; Deleted 3.1, 3.3.9, 3.14, 4 R. Lord 1981 04 27 Released by BEPE CAL1-RD 588050-5 1965 02 24 Released AT2-487 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies,
2、 LLC Page 1 of 2 POLYPROPYLENE, FLAME RETARDANT ESA-M4D202-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a flame retardant grade of polypropylene. 2. APPLICATION This specification was released originally for material used in electrical applications. 3. REQUI
3、REMENTS Material specification requirements are to be used for initial qualification of materials. 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). 3.2 MOLDED TEST SP
4、ECIMEN (ASTM D 2146) 3.2.1 Conditioning Test specimens shall be conditioned in the Standard Laboratory Atmosphere, prior to and during testing, according to ASTM D 618. 3.2.2 Specific Gravity, min 1.17 (ASTM D 792) 3.2.3 Flow Rate 3.0 - 9.0 g/10 min (ASTM D 1238, Condition “L“) 3.2.4 Tensile Strengt
5、h, min 3300 psi (22.8 MPa) (ASTM D 638) Elongation, min 5% 3.2.5 Flexural Modulus, min 200 000 psi (1.4 GPa) (ASTM D 790, Procedure “B“) ENGINEERING MATERIAL SPECIFICATION ESA-M4D202-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 2 3.2.6 Impact Strength, Iz
6、od, min 0.4 ft lb/in (22 J/m) (ASTM D 256, notched) 3.2.7 Deflection Temperature, min 60 C (ASTM D 648, 264 psi (1820 kPa), 1/8 in (3.2 mm) specimen width) 3.2.8 Flammability, max 4 in (101 mm)/min (FLTM BN 024-02, without the lot sampling plan) 3.2.9 Heat Aging (100 days at 121 +/- 3 C) After aging
7、, must pass flammability requirements per para 3.2.8. 3.3 MOLDED PART 3.3.1 Color Natural or as specified on engineering drawing. 3.3.2 Appearance Shall be uniform in density, texture and finish, free of visible porosity, warpage, heat scorch, checks, cracks, chipped edges and uneven surfaces. They
8、shall also be free of other contamination. 3.3.3 Regrind and/or Blended Material Must meet Q101 Appendix D, or limits as specified on the engineering drawing. 3.3.4 Specific Gravity, min 1.17 (ASTM D 792) 3.3.5 Flow Rate 3.0 - 9.0 g/10 min (ASTM D 1238, Condition “L“) 3.3.6 Hardness, Rockwell “R“, min 70 (ASTM D 785) 3.3.7 Water Absorption, max 0.3% (ASTM D 570, 24 h immersion) 3.3.8 Melting Point, min 155 C (FLTM BO 021-02)
