1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 20 N-STATUS No Replacement Named C. Mracna, NA 2004 08 25 Revised Removed Inactive ESA-M2D244-A; para 3.0 inserted; para 3.3.4, 5 revised; para 3.4, 4 deleted 1977 05 17 Rev. & Retyped after Rev. A - Rel. B COG2-761358-C Printed copies
2、 are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 1 of 2 RUBBER INSULATOR - EPDM, NYLON FABRIC, LAMINATE ESA-M2D244-B NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a laminate consisting of alternate layers of EPDM rubber and nylon fabric. 2.
3、APPLICATION This specification was released originally for material used as exhaust system hangers in high temperature requirements. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Product
4、ion Materials (WSS-M99P1111-A). 3.1 RAW MATERIAL 3.1.1 Oscillating Disc Rheometer Rheometer data on any lot of material must fall within the limits of the master curve established at initial certification. These curves must be kept on file in the suppliers quality control lab. 3.2 MOLDED EPDM SLABS
5、3.2.1 Hardness Durometer “A“ 65 +/- 5 (ASTM D 2240) 3.2.2 Tensile Strength, min 11.7 MPa (ASTM D 412 - Die C) 3.2.3 Elongation, min 600% (ASTM D 412) 3.2.4 Tear Strength, min 26 N/mm (ASTM D 624 - Die C) 3.2.5 Compression Set, max 80% (ASTM D 395 - Method B, 22 hrs at 150 +/- 3 C) 3.2.6 Ozone Resist
6、ance -0- (FLTM BP 101-01) ENGINEERING MATERIAL SPECIFICATIONESA-M2D244-B Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 2 3.3 LAMINATE 3.3.1 Thickness As specified on Engineering Drawing 3.3.2 Plies, number 4 3.3.3 Tensile Strength, min 8.3 MPa (ASTM D 412, D
7、ie A) 3.3.4 Elongation, min 15% (ASTM D 412) 3.3.5 Heat Resistance (ASTM D 573, 120 hrs at 150 +/- 3 C) 3.3.5.1 Tensile Change, max -10% 3.3.5.2 Aged Flexibility No cracking when bent back on itself 3.3.6 Adhesion, min (ASTM D 413, Machine Method) 3.3.6.1 Normal 11 x 103N/m 3.3.6.2 Aged 9 x 103N/m (
8、120 hrs at 150 +/- 3 C) 3.3.7 Low Temperature Flexibility: The material shall show no evidence of crack failure when conditioned for four (4) hours at -20 C and bent 180 around a 13 mm diameter temperature conditioned mandrel. The sample size shall be 25 mm x 150 mm x the specified thickness. 3.3.8
9、Infrared In case of disputes, samples of rubber and fabric from the laminate must have infrared curves that correspond to the master curve of the material approved for use which are on file in the affected Product Engineering Materials Office. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 FABRIC 5.1.1 Composition Tire Cord Nylon 5.1.2 Breaking Strength, Tensile, min Warp 20 N Fill 15 N
