1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 26 N-STATUS No known use. No Replacement Named C. Mracna, NA 2004 07 29 Revised Para 3.0 inserted; paras 3.1, 3.2, 3.3.11, 3.5 and 4 deleted 1985 11 21 Released CAP1-PA534653 Printed copies are uncontrolled Copyright 2009, Ford Global
2、Technologies, LLC Page 1 of 2 SILICONE ELASTOMER, INHERENTLY LUBRICATED - ESB-M2D350-A1 LIQUID INJECTION MOLDING (LIM) GRADE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a liquid injection molding (LIM) grade of inherently lubricated silicone with a very rapid
3、 cure system which provides part production approaching that of thermoplastic elastomers. 2. APPLICATION This specification was released originally for materials used to manufacture seals for the 1986 Taurus submergible electrical connectors. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION
4、MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.3 MOLDED TEST SPECIMENS 3.3.1 All test specimens shall be cut from injection molded test slabs having a nominal thickness of 1.9 mm. 3.3.2 Color Burnt Orang
5、e (unless otherwise specified on the engineering drawing) 3.3.3 Lubricant Bleed An ASTM test slab observed 24 h after molding must show evidence of lubricant bleed. 3.3.4 Density 1.17-1.21 g/cm3(ASTM D 792) 3.3.5 Hardness, Durometer A 23-27 (ASTM D 2240) 3.3.6 Tensile Strength, min 3.7 MPa (ASTM D 4
6、12, Die C, 508 mm/min test speed) 3.3.6.1 Elongation, min 450% 3.3.7 Tear Strength, min 7.0 kN/m (ASTM D 624, Die B) ENGINEERING MATERIAL SPECIFICATIONESB-M2D350-A1 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 2 3.3.8 Brittleness Temperature, -55 +/- 1 C Mu
7、st pass (ASTM D 2137) 3.3.9 Ozone Rating, max 0 (FLTM BP 101-01) 3.3.10 Compression Set, max 15% (ASTM D 395, Method B, plied, 22 h at 150 C) 3.4 QUALIFICATION TESTS Qualification tests shall be used for initial approval and when questions regarding material quality arise. 3.4.1 Heat Aging Performance (ASTM D 865, 1000 h at 150 C) 3.4.1.1 Hardness Change, max +7 3.4.1.2 Tensile Change, max -20% 3.4.1.3 Elongation Change, max -20% 3.4.2 Compression Set, max 60% (ASTM D 395, Method B, plied, 1000 h at 150 C)
