1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 07 22 N-STATUS No Replacement Named Y. Bankowski, NA 2005 01 07 Revised Inserted 3.0; Deleted 3.10 & 4 1963 07 09 Released LS1-743 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 1 of 2 POLYURETHANE FOAM
2、, HIGH DENSITY ESB-M4D75-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an expanded or cellular, flexible polyurethane foam. 2. APPLICATION This specification was released originally for material used as a seal for vent air valve dampeners on the Lincoln. 3. R
3、EQUIREMENTS 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 DENSITY 5.5 - 6.0 lb/ft3(88 - 96 kg/m3) 3.2 TENSILE STRENGTH, min 15 psi (103 kPa) (ASTM D 1564, Die
4、“A“) Elongation, min 200% 3.3 TEAR RESISTANCE, min 2.5 lb/in (440 N/m) (ASTM D 1564) 3.4 COMPRESSION SET, max 15% (ASTM D 1564, Method “B“, 22 h, 70 +/- 1 C, 50% constant deflection) 3.5 RESISTANCE TO DETERIORATION (FLTM BO 012-01) No evidence of cracking or loss of flexibility. Test part samples as
5、 received or die cut 4 x 4 in (100 x 100 mm) specimens, use 1 in (25 mm) mandrel for 180 bend. 3.6 25% COMPRESSION - DEFLECTION 12-20 lb (53-89 N) (ASTM D 1056, 4 x 4 in (100 x 100 mm) specimens, direct load reading) ENGINEERING MATERIAL SPECIFICATIONESB-M4D75-A Printed copies are uncontrolled Copyr
6、ight 2009, Ford Global Technologies, LLC Page 2 of 2 3.7 CELL STRUCTURE Shall be a homogeneous, medium sized cell with no large voids, surface cracks or solid spots. 3.8 ODOR No offensive odor, as received, during and after the deterioration test (para. 3.5). 3.9 COLD FLEXIBILITY, at -40 C No cracking Test Method: Condition 3 specimens, 2 x 4 in (50 x 100 mm), for a min of 5 h in a cold chamber maintained at -40 C. Without removing from chamber, bend the specimens 180 around a temperature conditioned mandrel equivalent in diameter to the thickness of the foam.
