1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 14 N-STATUS No replacement named J. Crist, NA 2006 01 30 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.6, 3.7 & 4 1994 04 18 Released NT00-I-10296645-016 T.P. Koch Printed copies are uncontrolled Copyright 2010, Ford Global Technologi
2、es, LLC Page 1 of 2 POLYIMIDE (PI), 15% GRAPHITE POWDER WSP-M4D770-A3 FILLED SINTERED MOLDING COMPOUND NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a polyimide compound filled with graphite powder, suitable for sintering into finished parts. 2. APPLICATION Thi
3、s specification was released originally for material used for automatic transmission converter thrust washer. 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-M99P
4、1111-A). 3.1.1 All requirements of this specification, identified by symbol(s), shall be met with data representing 3 sigma values. 3.4 MOLDING COMPOUND 3.4.1 Graphite Powder Content 14 - 16% (FLTM BO 106-04, Method B) 3.5 MOLDED TEST SPECIMEN 3.5.1 Preparation of Test Specimens Unless otherwise spe
5、cified all tests shall be carried out on direct formed specimens with nominal thickness of 3.2 mm. 3.5.2 Density, min 1.41 g/cm3(ISO 1183, Method A/ASTM D 792, Method A1) (s) 3.5.3 Tensile Strength at Max Load, min 55.0 MPa (ASTM D 638, 5.0 mm/min test speed sheet type test specimen acc. to ASTM E8)
6、s) 3.5.3.1 Elongation, min 3.5% (Test Method according to para 3.5.3) ENGINEERING MATERIAL SPECIFICATIONWSP-M4D770-A3 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 2 (s) 3.5.4 Flexural Strength, min 76 MPa (ISO 178/ASTM D 790M, Method I, Procedure A) (s) 3.
7、5.5 Compressive Strength, min 172 MPa (ASTM D 695, 13 mm diameter x 25 mm specimen, 1.3 mm/min test speed) 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Tensile strength, elongation and flexural strength are measured perpendicular to the pressing direction. Compressive strength is measured in parallel to the processing direction. 5.1 RECYCLING CODE PI-CD15
