1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2004 06 29 Revised Para 3.0 inserted; para 3.3, 3.5 & 4 deleted 1983 05 09 Tensile & Elongation Revised CE3M-RD863100-E 1982 10 14 Released CE3M-RD863100-E59 Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 1
2、of 3 FLUOROELASTOMER, OIL SEAL - VALVE STEM - ESE-M2D53-A2 HIGH HEAT - ABRASION RESISTANT 1. SCOPE The material defined by this specification is an abrasion resistant, high heat and oil resistant fluoroelastomer. 2. APPLICATION This specification was released originally for material used as valve st
3、em oil seals in automotive engines. 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 SLAB STOCK 3.1.1 Original Properties Hardness, Durometer “A“
4、65 - 75 (ASTM D 2240) Tensile Strength, min 9.6 MPa (ASTM D 412) Elongation, min 180% (ASTM D 412) 3.1.2 Heat Aged (ASTM D 865, 70 h at 232 C) Hardness, Durometer Change, max +5 Tensile Strength Change -10 to +25% Elongation Change, max -20% 3.1.3 Immersion in ASTM #1 Oil (ASTM D 471, 168 h at 149 C
5、) Hardness, Durometer Change +/- 3 Tensile Strength Change -10 to +18% Elongation Change -15 to +12% ENGINEERING MATERIAL SPECIFICATIONESE-M2D53-A2 Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 2 of 3 Volume Change +/- 5% 3.1.4 Immersion in ASTM #3 Oil (ASTM D 47
6、1, 168 h at 149 C) Hardness, Durometer Change -4 to 0 Tensile Strength Change -15 to +8% Elongation Change -10 to +15% Volume Change 0 to +5% 3.1.5 Compression Set, max 15% (ASTM D 395, Method “B“, 70 h at 149 C) 3.1.6 Low Temperature Test No cracks Test Method: Condition 25 x 51 mm samples prior to
7、 low temperature test per following four methods. After conditioning, place in cold chamber at -29 C for 5 h prior to bending. While still in cold chamber bend sample 180 C over itself. . As received. . After heat aging at 232 C for 70 h. . After immersion in ASTM #1 oil at 149 C for 168 h. . After
8、immersion in ASTM #3 oil at 149 C for 168 h. 3.2 PARTS 3.2.1 Original Properties Hardness, Micro 65 - 75 IRHD (ISO 48 and ASTM D 1415) 3.2.2 Air Aged (ASTM 865, 70 h at 232 C) Hardness Change 0 to +8 180 Bend Test No cracks (Bend completely flat against itself) 3.2.3 Immersion in ASTM Oil #1 (ASTM D
9、 471, 168 h at 149 C) Hardness Change +/- 5 Volume Change 0 to +8% 180 Bend Test No cracks ENGINEERING MATERIAL SPECIFICATIONESE-M2D53-A2 Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 3 of 3 3.2.4 Immersion in ASTM Oil #3 (ASTM D 471, 168 h at 149 C) Hardness Change -6 to 0 Volume Change 0 to +8% 180 Bend Test No cracks 3.4 SOURCE IDENTIFICATION Each part shall have the suppliers identification marks permanently affixed. The markings shall be identical to those shown in the Rubber Manufacturers Association Source Identification Book.
