1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 07 28 N-STATUS No Replacement Named Y. Bankowski, NA 2007 02 05 Revised Inserted 3.0; Deleted 3.12, 3.13 & 4 1966 03 21 Released F6-2717 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 1 of 2 POLYURETHAN
2、E FOAM, OPEN CELL ESF-M4D226-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a completely open cell polyurethane foam with a 97% void-volume relationship, felted to a 3:1 ratio of its original thickness. 2. APPLICATION This specification was released originally
3、 for material used where a completely open cell construction is needed such as in the oiler wick for the distributor cam. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirement For Production Material
4、s (WSS-M99P1111-A). 3.1 DENSITY 4 - 6.5 lb/ft3(ASTM D 1564) (64 - 104 kg/m3) 3.2 TENSILE STRENGTH, min 25 psi (173 kPa) (ASTM D 1564) Elongation, min 250% 3.3 TEAR RESISTANCE, min 3 lb/in (0.5 kN/m) (ASTM D 1564) 3.4 COMPRESSION SET, max 75% (ASTM D 1564, Method “B“) 3.5 LOAD INDENTATION AFTER AGING
5、 max 30% (FLTM BO 012-01, specimen 1 in (25 mm) thick) Test for qualification only. 3.6 ODOR No offensive odor as received and during and after the test in para. 3.5. 3.7 COLD FLEXIBILITY AT -40 C No cracking Test Method: Condition 3 specimens, 1/2 x 2 x 8 in (12.7 x 50 x 200 mm), for 5 to 6 h in a
6、 cold chamber maintained at -40 C. Without removing from chamber, bend the specimen 180 over a temperature conditioned mandrel (1/2 in (12.7 mm) diameter). ENGINEERING MATERIAL SPECIFICATIONESF-M4D226-A Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 2 3.8 25%
7、 COMPRESSION DEFLECTION 04 - 0.5 psi (ASTM D 1564, 1 x 2 x 2 in (2.7 - 3.4 kPa) (25 x 50 x 50 mm) sample) 3.9 CELL STRUCTURE 80 - 90 cells/linear in (Original Material Before Felting) (32 - 36 cells/10 mm) Shall have a homogeneous, open, fine cell structure with no large voids or solid spots. It shall be free from internal defects, such as cold shuts, folds, laps and tears. It must be 100% open cell. 3.10 OZONE RATING Must meet ESB-M9P1-A 3.11 CHEMICAL RESISTANCE As specified on engineering drawing
