1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2005 01 25 Revised Inserted 3.0; Deleted 3.3 & 4. 1980 10 27 Revised 3.1.7 Was Tensile Impact R#10-3/CH8K-RD876099 1969 10 22 Released CAY2-948037 Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 1 of 2 POLYPR
2、OPYLENE, 20% TALC FILLED ESA-M4D293-A 1. SCOPE The material defined by this specification is a talc filled polypropylene polymer suitable for injection molding. 2. APPLICATION This specification was released originally for material used for molded parts which require good impact strength and dimensi
3、onal stability up to 121 C, such as heater blower wheels. 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). 3.1 BASE MATERIAL 3.1.1 Specific Gravity 1.
4、00 - 1.10 (ASTM D 792) 3.1.2 Flow Rate, max (ASTM D 1238, Condition “L“) As Received 7.5 g/10 min After 1000 h at 121 C 7.5 g/10 min 3.1.3 Melting Point, min 160 C (Fisher-Johns FLTM BO 021-02) 3.1.4 Tensile Strength at Yield, min 4250 psi (29.3 (ASTM D 638, Speed “C“) MPa) Elongation at Yield, min
5、2% 3.1.5 Flexural Modulus, min 310,000 psi (ASTM D 790, Procedure “B“) (2.2 GPa) 3.1.6 Deflection Temperature, min (ASTM D 648, 1/2 x 1/8 x 5 in (13 x 3.2 x 125 mm) specimen) At 66 psi (455 kPa) 116 C At 264 psi (1820 kPa) 66 C 3.1.7 Impact Strength, Izod, min 6.0 ft lb/in (ASTM D 256, unnotched) (3
6、20 J/m) ENGINEERING MATERIAL SPECIFICATIONESA-M4D293-APrinted copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 2 of 2 3.1.8 Talc Filler 17 - 25% (FLTM BO 006-02) 3.2 MOLDED PARTS, Quality Conformance Material from parts shall be tested as follows: 3.2.1 Specific Gravity 1.0
7、0 - 1.10 (ASTM D 792) 3.2.2 Flow Rate, max 7.5 g/10 min (ASTM D 1238, Condition “L“) 3.2.3 Melting Point, min 160 C (Fisher-Johns FLTM BO 21-2) 3.2.4 Talc Filler 17 - 25% (FLTM BO 006-02) 3.2.5 Heat Resistance (5 h at 121 +/- 3 C) Avg Shrinkage, all areas, max 0.006 in/in (mm/mm) 3.2.6 Physical Prop
8、erties Additional physical properties of the molded parts such as below may be specified on engineering drawing or in engineering performance specification when required. 3.2.7 Color As specified on engineering drawing 3.2.8 Hardness - Rockwell “R“ 95 - 105 3.2.9 Water Absorption, max 0.10% (ASTM D 570, 24 h immersion)
