1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 06 25 N-STATUS No replacement named C. Mracna, NA 2004 09 28 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.13, 3.14 & 4 1990 07 02 Released NT00E10056207000 T.P. Koch Printed copies are uncontrolled Copyright 2010, Ford Global Technologi
2、es, LLC Page 1 of 5 FLUOROELASTOMER (FKM), OIL SEAL, O-RING WSP-M2D442-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a fluoroelastomer compound having good compression set resistance and tear resistance and is easily compressible for installation. The materia
3、l is designed for static applications where extrusion is not a problem. 2. APPLICATION This specification was released originally for material used as an O-Ring for transmission torque converter applications. The material is capable of withstanding a -40 C to 160 C temperature range in a static oil
4、soaked environment. This material can possibly be used in a reciprocating, oil soaked environment at -40 C 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 the Companys Standard
5、 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 feasible, specimens cut from molded test sheets manufactured from the same material and with equi
6、valent 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 3.5 ORIGINAL PROPERTIES 3.5.1 Density 1.79 - 1.83 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, Durom
7、eter A 72 - 78 (ISO 868/ASTM D 2240, instantaneous, plied-up specimen. Hand held durometers shall not be used) 3.5.4 Tensile Strength, min 9.5 MPa (ISO 37/ASTM D 412, Die C) ENGINEERING MATERIAL SPECIFICATIONWSP-M2D442-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Pa
8、ge 2 of 5 3.5.5 Elongation at Break, min 175% (Test Method according to para 3.5.4) 3.5.6 Modulus at 100% Elongation 5.0 MPa (Test Method according to para 3.5.4) 3.5.7 Tear Strength, min 25 kN/m (ISO 34, Method B, procedure (a)/ ASTM D 624, Die C) 3.5.8 Brittleness Point, max -25 C (ISO 812, Type B
9、 specimen/ASTM D 2137, Method A) 3.5.9 Ozone Resistance, max Rating 0 (FLTM BP 101-01, Procedure A) 3.5.10 Compression Set, max 35% (ISO 815/ASTM D 395, Method B, except 25% compression, plied-up specimens, 168 h at 165 +/- 2 C) 3.6 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 168 h at 1
10、65 +/- 2 C) 3.6.1 Microhardness Change +/- 4 3.6.2 Tensile Strength Change -10 to +10% 3.6.3 Elongation Change -20 to +20% 3.6.4 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.7 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 160 +/- 2 C) 3.7.1
11、 Microhardness Change +/- 4 3.7.2 Tensile Strength Change, max +20% 3.7.3 Elongation Change, max +25% 3.7.4 Visual Evaluation No surface tackiness or cracks when folded flat against itself. ENGINEERING MATERIAL SPECIFICATIONWSP-M2D442-APrinted copies are uncontrolled Copyright 2010, Ford Global Tech
12、nologies, LLC Page 3 of 5 3.8 IMMERSION IN OIL NO.1 (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C) 3.8.1 Microhardness Change +/- 4 3.8.2 Tensile Strength Change -10 to +15% 3.8.3 Elongation Change 0 to +30% 3.8.4 Volume Change -1 to +4% 3.8.5 Visual Evaluation No surface tackiness or cracks when folde
13、d flat against itself 3.9 IMMERSION IN OIL NO.3 (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C) 3.9.1 Microhardness Change +/- 4 3.9.2 Tensile Strength Change -10 to +15% 3.9.3 Elongation Change 0 to +30% 3.9.4 Volume Change +1 to +4% 3.9.5 Visual Evaluation No surface tackiness or cracks when folded fl
14、at against itself. 3.10 IMMERSION IN THREE CURRENTLY APPROVED AUTOMATIC TRANSMISSION FLUIDS (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C, see para 5.1) 3.10.1 Microhardness Change +/- 4 3.10.2 Tensile Strength Change 0 to -20% 3.10.3 Elongation Change 0 to -20% 3.10.4 Volume Change 0 to +5% 3.10.5 Vis
15、ual Evaluation No surface tackiness or cracks when folded flat against itself) 3.11 IMMERSION IN THREE CURRENTLY APPROVED AUTOMATIC TRANSMISSION FLUIDS (ISO 1817/ASTM D 471, 1000 h at 150 +/- 2 C, see para 5.1) 3.11.1 Microhardness Change +/- 4 3.11.2 Tensile Strength Change, max -30% ENGINEERING MA
16、TERIAL SPECIFICATIONWSP-M2D442-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 5 3.11.3 Elongation Change, max -35% 3.11.4 Volume Change 0 to +5% 3.11.5 Visual Evaluation No surface tackiness or cracks when folded flat against itself) 3.12 FINISHED PART (ASTM
17、 D 1414) The following requirements apply to O-Rings and Square Cut Seals only. For other type seals that use this material specific requirements shall be specified on the Engineering drawing, Engineering parts specification and/or performance specifications. All critical areas with respect to these
18、 properties shall be clearly designated on the Engineering drawing. 3.12.1 Density 1.79 - 1.83 g/cm3(ISO 1183, Method A/ASTM D 297) 3.12.2 Hardness, International 63 - 73 (ISO 48/ASTM D 1415) 3.12.3 Tensile Strength, min 8.0 MPa (ISO 37/ASTM D 412, Die C) 3.12.4 Elongation at Break, min 200% (Test M
19、ethod according to para 3.5.4) 3.12.5 Modulus at 100% Elongation 3.0 MPa (Test Method according to para 3.5.4) 3.12.6 Compression Set, max 45% (ISO 815/ASTM D 395, Method B, except 25% compression, plied-up specimens, 168 h at 165 +/- 2 C) 3.12.7 Heat Aged (ISO 188/ASTM D 573, 150 +/- 50 air changes
20、/h, 168 h at 165 +/- 2 C) Hardness, International Change +/- 5 Tensile Strength Change -20 to +20% Elongation Change -35 to +15% Visual Evaluation No surface tackiness or cracks when folded flat against itself) ENGINEERING MATERIAL SPECIFICATIONWSP-M2D442-APrinted copies are uncontrolled Copyright 2
21、010, Ford Global Technologies, LLC Page 5 of 5 3.12.8 Immersion in Three Currently Approved Automatic Transmission Fluids (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C, see para 5.1) Microhardness Change -5 to +5 Tensile Strength Change, max -30 to +10% Elongation Change, max -30 to +10% Volume Change
22、0 to +5% Visual Evaluation No surface tackiness or cracks when folded flat against itself) 3.12.9 Tensile Set, max 50% (FLTM BP 116-01, 15% elongation) 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5
23、.1 For information on currently approved automatic transmission fluids and other materials required for use in this specification contact: Materials Laboratory 15/GM-D01-D Transmission & Axle Engineering Research and Engineering Centre Materials, Fasteners & Friction Ford Motor Company Ltd Ford Moto
24、r Company Laindon, Basildon P.O. Box 2097 Essex SS15 6EE, England 36200 Plymouth Road Livonia, MI 48151, USA Materials Engineering Product Engineering Office Ford 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 are used (see 5.1), compatibility in those fluids must be re-established. 5.3 COMPRESSION SET, max 40% (ISO 815/ASTM D 395, Method B, except 25% compression, plied-up specimens, 1000 h at 165 +/- 2 C)
