1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 19 N-STATUS No replacement named J. Crist, NA 2006 03 30 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.7, 3.8 & 4 1991 08 01 Released EP00E01089487000 L. Rodigas Printed copies are uncontrolled Copyright 2010, Ford Global Technologies
2、, LLC Page 1 of 2 PERFLUORO ALKOXY (PFA) COPOLYMER MOLDING WSK-M4D817-A COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a thermoplastic tetrafluorethylene/perfluoro alkoxy copolymer (PFA) injection and extrusion molding compound. 2. APPLICATION This spec
3、ification was released originally for material used for speedometer cable assembly. 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). 3.4 MOLDING COMPO
4、UND 3.4.1 Melt Flow Rate 11 - 16 g/ (ASTM D 3307, 372 +/- 1 C, 5.0 kg) 10 minutes 3.4.2 Melting Peak Temperature 300 - 312 C (ASTM D 3307) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Test specimens shall be prepared according to ASTM D 3307. 3.5.2 Density 2.12 - 2.17 g/cm3(ASTM D 33
5、07) 3.5.3 Tensile Strength at Max Load, min 22 MPa (ASTM D 3307) 3.5.3.1 Elongation at Break, min 380% 3.5.4 Heat Aging Performance (ISO 188/ASTM D 573, 1000 h at 200 +/- 2 C) 3.5.4.1 Tensile Strength Change +/- 10% 3.5.4.2 Elongation Change +/- 10% ENGINEERING MATERIAL SPECIFICATIONWSK-M4D817-A Pri
6、nted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 2 3.6 Dielectric Constant, max 2.2 (IEC 250/ASTM D 150, at 50 Hz to 1 MHz) 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 12 22-5/C (ASTM D 696) 5.2 RECYCLING CODE SAE PFA OPTIONAL
