1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 27 N-STATUS No known use. No Replacement Named C. Mracna, NA 2004 09 15 Revised Para 3.0 inserted ; para 3.1, 3.2, 3.3, 3.5, 3.6 & 4 deleted 1987 10 23 Released CAR1-CR104808 Printed copies are uncontrolled Copyright 2009, Ford Global
2、Technologies, LLC Page 1 of 3 SILICONE ELASTOMER (MQ), INHERENTLY WSB-M2D386-A1 LUBRICATED - LIQUID INJECTION MOLDING (LIM) COMPOUND 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 elastomer
3、 with a very rapid cure system which provides part production approaching that of thermoplastic elastomers. 2. APPLICATION This specification was released originally for material used to manufacture seals for the 1988 carline submergible connectors. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PROD
4、UCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MATERIAL TESTING 3.4.1 Preparation of Test Specimens Whenever possible, all test specimens shall be die-cut from the finished parts. When not feasi
5、ble, specimens cut from molded test sheets manufactured from the same material and with equivalent cure to molded parts are recommended. The test sheets shall have the following dimensions: 150 x 150 mm, min x 2.0 +/- 0.2 mm 3.4.2 Color Light Gray Unless otherwise specified on the engineering drawin
6、g 3.4.3 Lubricant Bleed An ASTM test sheet observed 24 h after molding must show evidence of lubricant bleed. 3.4.4 Density 1.14 - 1.18 g/cm3(ASTM D 297) 3.4.5 Hardness, International TBD (ASTM D 1415) ENGINEERING MATERIAL SPECIFICATIONWSB-M2D386-A1Printed copies are uncontrolled Copyright 2009, For
7、d Global Technologies, LLC Page 2 of 3 3.4.6 Hardness, Durometer A 23 - 27 (ASTM D 2240, instantaneous, plied-up specimen) 3.4.7 Tensile Strength, min 5.2 MPa (ASTM D 412, Die C) 3.4.8 Elongation at Break, min 750% (Test Method according to para 3.4.7) 3.4.9 Modulus at 100% Elongation, min 400 kPa (
8、Test Method according to para 3.4.7) 3.4.10 Tear Strength, min 15 kN/m (ASTM D 624, Die B) 3.4.11 Brittleness Point, max -55 C (ASTM D 2137, Method A) 3.4.12 Ozone Resistance, max Rating O (FLTM BP 101-01) 3.4.13 Compression Set, max (ASTM D 395, Method B) 3.4.13.1 22 h at 150 +/- 2 C 10% 3.4.13.2 1
9、,000 h at 150 +/- 2 C 25% 3.4.14 Heat Aged (ASTM D 573, 1,000 h at 150 +/- 2 C) Hardness Change, max +7 Tensile Strength Change, max -20% Elongation Change, max -20% Modulus at 100% Elongation Change, max TBD Visual Evaluation No surface tackiness or cracks when folded flat against itself. ENGINEERI
10、NG MATERIAL SPECIFICATIONWSB-M2D386-A1Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 3 of 3 3.4.15 Immersion in ASTM Oil No. 1 (ASTM D 471, 168 h at 150 +/- 2 C) Hardness Change +/- 7 Tensile Strength Change, max -20% Elongation Change, max -20% Modulus at 100% Elongation Change, max TBD Volume Change, max +10% Visual Evaluation No surface tackiness or cracks when folded flat against itself.
