1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 06 25 N-STATUS No replacement named C. Mracna, NA 2004 09 27 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.6, 3.7 & 4 1991 02 07 Released NT00I10070715159 T. P. Koch Printed copies are uncontrolled Copyright 2010, Ford Global Technologie
2、s, LLC Page 1 of 4 FLUOROELASTOMER (FKM) OIL SEAL WSP-M2D430-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a fluoroelastomer compound having good compression set and tear resistance allowing easy installation. 2. APPLICATION This specification was released or
3、iginally for the sealing element of a bonded rubber to metal seal, used in transmission torque converter applications. The material is capable of withstanding a -40 to 160 C temperature range in a static oil soaked environment. This material can potentially be used in a reciprocating, oil soaked env
4、ironment at -40 to 160 C if proper design procedures are followed. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MATERIAL TESTING 3.
5、4.1 Preparation of Test Specimens Whenever possible, all test specimens shall be die-cut from the finished parts. When not feasible, 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 foll
6、owing dimensions: 150 x 150 mm, min x 2.0 +/- 0.2 mm 3.5 ORIGINAL PROPERTIES 3.5.1 Density 2.06 - 2.10 g/cm3(ISO 1183, Method A/ASTM D 297) 3.5.2 Hardness, International 64 - 72 (ISO 48/ASTM D 1415) 3.5.3 Hardness, Durometer A 71 - 77 (ISO 868/ASTM D 2240, instantaneous, plied-up specimen. Hand held
7、 durometers shall not be used) 3.5.4 Tensile Strength, min 8.0 MPa (ISO 37/ASTM D 412, Die C) 3.5.5 Elongation at Break, min 175% (Test Method according to para 3.5.4) ENGINEERING MATERIAL SPECIFICATIONWSP-M2D430-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2
8、of 4 3.5.6 Modulus at 100% Elongation 4.5 MPa (Test Method according to para 3.5.4) 3.5.7 Tear Strength, min 20 kN/m (ISO 34, Method B, Procedure A/ASTM D 624, Die C) 3.5.8 Brittleness Point, max -20 C (ISO 812, Type B specimen/ASTM D 2137, Method A) 3.5.9 Ozone Resistance, max Rating 0 (FLTM BP 101
9、01, Procedure A) 3.5.10 Compression Set, max 35% (ISO 815/ASTM D 395, Method B, except 25% compression, plied-up Type 1 specimens, 168 h at 165 +/- 2 C) 3.5.11 Heat Aged (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 168 h at 165 +/- 2 C) Hardness Change +/- 4 Tensile Strength Change, max +20% Elon
10、gation Change, max +/- 20% Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.5.12 Heat Aged (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 165 +/- 2 C) Hardness Change +/- 4 Tensile Strength Change, max +20% Elongation Change, max +20% Visual Evaluation No
11、 surface tackiness or cracks when folded flat against itself. 3.5.13 Immersion in Oil No.1 (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C) Hardness Change +/- 4 Tensile Strength Change -5 to +20% Elongation Change -20 to +10% Volume Change -1 to +4% Visual Evaluation No surface tackiness or cracks when
12、folded flat against itself. ENGINEERING MATERIAL SPECIFICATIONWSP-M2D430-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 4 3.5.14 Immersion in Oil No.3 (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C) Hardness Change +/- 4 Tensile Strength Change -5 to +20% Elong
13、ation Change +/- 15% Volume Change +1 to +4% Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.5.15 Immersion in Two Currently Approved Automatic Transmission Fluids (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C, see para 5.1) Hardness Change +/- 4 Tensile Strength Cha
14、nge 0 to -30% Elongation Change 0 to -40% Volume Change +1 to +5% Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.5.16 Immersion in Two Currently Approved Automatic Transmission Fluids (ISO 1817/ASTM D 471, 1000 h at 150 +/- 2 C, see para 5.1) Hardness Change +/-
15、4 Tensile Strength Change, max -30% Elongation Change, max -45% Volume Change +1 to +5% Visual Evaluation No surface tackiness or cracks when folded flat against itself. ENGINEERING MATERIAL SPECIFICATIONWSP-M2D430-A Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page
16、4 of 4 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 For information on currently approved service fluids and other materials required for use in this specification contact: Materials Laboratory
17、15/GM-D01-D Transmission & Axle Engineering Research and Engineering Centre Materials, Fasteners & Friction Ford Motor Company Ltd Ford Motor Company Laindon, Basildon P. O. Box 2097 Essex SS15 6EE, England 36200 Plymouth Road Livonia, MI 48151, USA Materials Engineering Product Engineering Office F
18、ord Motor Co. of Australia Ltd Princes Highway, Norlane Victoria 3214, Australia 5.2 Fluoroelastomers are affected differently by different transmission fluids. If fluids other than those currently approved (see Para 5.1) are used compatibility in these fluids must be re-established. 5.3 Compression Set, max 40% (ISO 815/ASTM D 395, Method B, except 25% compression, plied up Type 1 specimens, 1000 h at 150 +/- 2 C)
