1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 21 N-STATUS No Replacement Named C. Mracna, NA 2004 07 15 Revised Para 3.0 inserted; para 3.1, 3.2.2, 3.6 & 4 deleted 1985 01 14 Released CAP1-RD527812 Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page
2、1 of 2 SILICONE ELASTOMER, INHERENTLY LUBRICATED ESB-M2D280-A3 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an inherently lubricated silicone elastomer. 2. APPLICATION This specification was released originally for material used to manufacture the 1984 LTD sub
3、mergible connector boot seal. 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). 3.2 MOLDED TEST SPECIMENS 3.2.1 Preparation of Test Specimens All test
4、specimens shall be die cut from standard vulcanized sheets prepared from production compound per ASTM D 3182. 3.2.3 Lubricant Bleed An ASTM test slab observed 24 h after molding must show evidence of lubricant bleed. 3.2.4 Hardness, Durometer A 58 - 65 (ASTM D 2240) 3.2.5 Tensile Strength, min 6.8 M
5、Pa (ASTM D 412, Die C) Elongation, min 250% 3.2.6 Tear Strength, min 12.0 kN/m (ASTM D 624, Die B) 3.2.7 Compression Set, max 15% (ASTM D 395, method B, 70 h at 150 +/- 2 C) ENGINEERING MATERIAL SPECIFICATIONESB-M2D280-A3Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC P
6、age 2 of 2 3.3 HEAT AGED (ASTM D 865, 70 h at 150 +/- 2 C) 3.3.1 Hardness Change, max +/- 5 3.3.2 Tensile Strength Change, max -5% 3.3.3 Elongation Change, max -10% 3.4 QUALIFICATION TESTS Qualification requirements shall be used for initial approval and when questions regarding material quality ari
7、se. 3.4.1 Compression Set, max 35% (ASTM D 395, Method B, 1,000 h at 150 +/- 2 C) 3.4.2 Heat Aging Performance (ASTM D 865, 1,000 h at 150 +/- 2 C) 3.4.2.1 Hardness Change, max +12 3.4.2.2 Tensile Strength Change, -25% max 3.4.2.3 Elongation Change, max -35% 3.5 ADDITIONAL MATERIAL REQUIREMENTS Spec
8、ific requirements for physical properties of manufactured parts shall be specified on the engineering drawing and/or engineering part specification. All critical areas with respect to these properties shall be clearly designated on the engineering drawing. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification 5.1 DENSITY, NOMINAL 1.28 g/cm3(ASTM D 792)
