1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2005 01 06 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 & 4 1996 01 10 Revised Updated and Revised para 1, 3.4, 3.5 S. DeGrood 1987 05 08 Released CP4R107002-14 J. Huebner Printed copies are uncontrolled Copyright 2005, Ford Global Te
2、chnologies, LLC Page 1 of 2 ACRYLIC (PMMA), MEDIUM HEAT DEFLECTION TEMPERATURE ESF-M4D9-A10 MOLDING COMPOUND 1. SCOPE The material defined by this specification is a thermoplastic acrylic molding compound based on PMMA, possessing medium heat deflection temperature than standard grade PMMA resins. 2
3、. APPLICATION This specification was released originally for material used for manufacturing instrument cluster lenses. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials
4、 (WSS-M99P1111-A). 3.4 MOLDING COMPOUND 3.4.1 Melt Flow Rate 1.0 - 5.0 g/10 min (ISO 1133/ASTM D 1238, 230 C, 3.8 kg) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise specified all tests shall be carried out on injection molded test specimens. The specimens shall be prep
5、ared according to ISO 294/ASTM D 1897. No annealing allowed, except where indicated. 3.5.2 Density 1.18 - 1.20 g/cm3(ISO R 1183, Method A/ASTM D 792, Method A1) 3.5.3 Tensile Strength at Max Load, min 62 MPa (ISO R 527/ASTM D 638, 3.2 +/- 0.2 mm thick specimen, 50 mm/min test speed) 3.5.3.1 Elongati
6、on at Break, min 3% (Test Method according to para 3.5.3) 3.5.4 Heat Deflection Temperature, min 100 C (ISO 75/ASTM D 648, 3.2 +/- 0.2 mm thick specimen, at 1.82 MPA, annealed at 100 - 105 C for 4 h) ENGINEERING MATERIAL SPECIFICATIONESF-M4D9-A10Printed copies are uncontrolled Copyright 2005, Ford G
7、lobal Technologies, LLC Page 2 of 2 3.5.5 Water Absorption, max 0.4% (ISO 62, 24 h/ASTM D 570, 24 h, 50 +/- 1 mm diameter, 3.2 +/- 0.2 mm thick specimen) 3.5.6 Optical Properties 3.5.6 Optical Properties 3.5.6.1 Luminous Transmittance, min 90% (ASTM D 1003, 3.2 +/- 0.2 mm thick, clear, molded sheet)
8、 3.5.6.2 Haze, max 3% (ASTM D 1003, 3.2 +/- 0.2 mm thick, clear, molded sheet) 3.6 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/minute In addition, the test specimen shall not exhibit any flashing or sudden flaming on either surface in excess of the above max value. 5. GENERAL INFORMATION The infor
9、mation given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 MOLD SHRINKAGE 0.003 - 0.006 mm/mm (ASTM D 955) 5.2 HARDNESS, ROCKWELL M 97 (ASTM D 785) 5.3 GLASS TRANSITION 129 C (ASTM D 3418) 5.4 REFRACTIVE INDEX 1.496 (ASTM D 542) 5.5 RECYCLING CODE PMMA
