1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 01 08 N-STATUS Made N-Status again per K. Mueller 2006 12 08 Re-Activated K. Mueller 1986 06 12 Released CDQ1-CR536517 Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 1 of 3 THERMOPLASTIC POLYOLEFIN ELAS
2、TOMER (TPO), MINERAL FILLER, ESB-M4D492-A1 COLOR PIGMENTED. PAINTED APPLICATIONS ONLY THERMOPLASTIC POLYOLEFIN ELASTOMER (TPO), MINERAL/GLASS ESB-M4D492-A2 FIBER FILLER, COLOR PIGMENTED, PAINTED APPLICATIONS ONLY THERMOPLASTIC POLYOLEFIN ELASTOMER (TPO), HIGH MINERAL ESB-M4D492-A3 FILLER CONTENT, CO
3、LOR PIGMENTED, PAINTED APPLICATIONS ONLY NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are injection molding grades of color pigmented thermoplastic polyolefins that have been modified to provide stiffness and dimensional stability. These materials are non-UV s
4、tabilized and must be painted to achieve acceptable weatherability. 2. APPLICATION The ESB-M4D492-A1 and A3 specifications were released originally for material used for bodyside claddings. The ESB-M4D492-A2 specification was released originally for material used for bodyside fairings. 3. REQUIREMEN
5、TS 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). A1 A2 A3 3.4 MOLDING COMPOUND 3.4.1 Total Filler Content, % 11 - 14 13 - 17 26 - 31 (ASTM D 2584) 3.5 MOLDED TEST
6、SPECIMENS 3.5.1 Preparation of Test Specimens All test specimens shall be injection molded in accordance with ASTM D 1897. The values of this specification are based on unannealed injection molded specimens that shall not be cut from larger specimens unless otherwise specified. ENGINEERING MATERIAL
7、SPECIFICATIONESB-M4D492-A1/A2/A3Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 2 of 3 A1 A2 A3 3.5.2 Density, g/cm30.97 - 1.00 0.97 - 1.00 1.11 - 1.16 (ASTM D 792) 3.5.3 Tensile Strength at Max Load, MPa, min 14.0 14.0 15.5 (ASTM D 638, Type I specimen, 3.2 mm thi
8、ck, 50 mm/min test speed) Elongation at Break, % min 150 40 5 3.5.4 Flexural Modulus, GPa 1.1 - 1.4 1.2 - 1.5 1.6 min (ASTM D 790, Method I, Procedure A, 3.2 x 12.7 x 127 mm specimen, 5 mm/min test speed) 3.5.5 Heat Deflection Temperature, C, min (ASTM D 648, 3.2 x 12.7 x 127 mm specimens) 3.5.5.1 A
9、t 0.45 MPa 80 90 82 3.5.5.2 At 1.82 MPa 48 55 45 3.5.6 Impact Strength, Izod, J/m, min (ASTM D 256, Method A, 3.2 x 12.7 x 63.5 mm specimen) 3.5.6.1 At 23 +/- 2 C 320 200 176 3.5.6.2 At -29 +/- 2 C 37 40 18 3.5.7 Heat Aging Performance (ASTM D 3045, 1000 h at 100 +/- 1 C) 3.5.7.1 Tensile Strength Ch
10、ange, % max -10 -10 -10 (Test Method per para 3.5.3) 3.5.7.2 Elongation Change, -40 -40 -10 % max (Test Method per para 3.5.3) 3.5.7.3 Impact Strength Izod at 23 +/- 2 C Change, % max -25 -25 +45 (Test Method per para 3.5.6) ENGINEERING MATERIAL SPECIFICATIONESB-M4D492-A1/A2/A3Printed copies are unc
11、ontrolled Copyright 2007, Ford Global Technologies, LLC Page 3 of 3 3.5.8 Impact Strength, Falling Dart, J, min A1 A2 A3 3.5.8.1 At 23 +/- 2 C 18.1 18.1 21 3.5.8.2 At -29 +/- 2 C 18.1 10.0 11 Test Method: An impact tester (Gardner Model IG-1120 or equivalent) equipped so that the impact head (13 mm
12、diameter) and the base (51 mm diameter) conform to FLTM BO 117-02. A 1.8144 kg weight will be used unless otherwise specified. Test specimens (100 x 100 x 3.2 +/- 0.2 mm) will be conditioned at the specified temperature for 24 h min. Low temperature specimens will be impacted within 5 s after remova
13、l from the cold chamber. Any specimen that exhibits no fracture or a punch through ductile tear within the 13 mm impact area will be defined as a pass. Any specimen that exhibits a brittle or shatter type crack beyond the 13 mm impact area will be defined as a failure. A minimum of 10 specimens must
14、 be impacted. 3.7 PAINTABILITY The material when painted must meet the requirements of engineering performance specifications shown on the engineering drawing, using coating materials approved by the responsible product materials engineering office. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. A1 A2 A3 5.1 MOLD SHRINKAGE, % 1.0 0.8 - 0.95 0.8 (ASTM D 955, after 48 h, injection molded sample) 5.2 COEFFICIENT OF LINEAR THERMAL EXPANSION, x -5/ C 6.0 5.2 5.2 (ASTM D 696)
