1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 21 N-STATUS No Replacement Named C. Mracna, NA 2004 07 16 Revised Para 3.0 inserted; para 3.6 & 4 deleted 1977 05 17 Released CAG2-761358-C Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 1 of 1 RUBBE
2、R, SCRAP TIRE CASING ESA-M2D275-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a rubber impregnated polyester-fiberglass, nylon-fiberglass, or rayon-rayon reinforcement of 2 x 2 construction. 2. APPLICATION This specification was released originally for materi
3、al used in die cut parts such as exhaust hangers. 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). 3.1 HARDNESS, DUROMETER “A“ 55 (ASTM D 2240) 3.2 TE
4、NSILE STRENGTH, min 7.2 MPa (ASTM D 412, Die “A“) Elongation, max 50% 3.3 HEAT AGED (ASTM D 573, 5 days at 125 C, Die “A“) Tensile Strength Change, min -59% Aged Flexibility No evidence of cracking when bent back on itself Hardness, Durometer “A“ +17 Change, max 3.4 LOW TEMPERATURE FLEXIBILITY AT -2
5、9 C No evidence of crack failure Test Method: Condition for 4 h at -29 C and bend 180 around a 13 mm diameter mandrel. 3.5 FLEX LIFE 100,000 cycles without (ASTM D 813, DeMattia or Equivalent) cracking or fracture Test Method: Specimens, 25 x 152 mm, shall be mounted in a flex cycling unit with specimen exposure of 102 mm in fully open position and providing a 63 mm in closed position. The material shall be cycled at a rate of 300 +/- 25 cpm.
