1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 06 28 A2 - N-STATUS No replacement named C. Mracna, NA 2004 09 30 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.12 & 4 1991 03 01 Released NT00E10077193054 T. Koch Printed copies are uncontrolled Copyright 2010, Ford Global Technologies,
2、 LLC Page 1 of 4 FLUOROELASTOMER (FPM), OIL RESISTANT ROTATING WSP-M2D455-A/A2 SHAFT OIL SEAL A2 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a fluoroelastomer (FPM) compound having good compression set and tear resistance. 2. APPLICATION This specification wa
3、s released originally for material used for the sealing element of a bonded rubber-to-metal seal used in transmission radial shaft seal applications. The material is capable of withstanding a -40 to 160 C temperature range in a dynamic oil splashed environment. 3. REQUIREMENTS 3.0 STANDARD REQUIREME
4、NTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 SLAB STOCK 3.4.1 Preparation of Test Specimens All tests are to be performed on specimens die-cut from molded test sheets manufactured
5、from the same material and with equivalent cure to production parts. The test sheets shall have the following dimensions: 150 x 150 mm, min x 2.0 +/- 0.2 mm A A2 3.4.2 Density, +/- .02 g/cm32.02 1.92 (ISO 1183, Method A/ASTM D 297) 3.4.3 Hardness, International 67 - 75 81 - 89 (ISO 48/ASTM D 1415) 3
6、4.4 Hardness, Durometer A 72 - 78 82 - 88 (ISO 868/ASTM D 2240, instantaneous, plied-up specimen. Hand held durometers shall not be used) 3.4.5 Tensile Strength, MPa, min 13.5 8.5 (ISO 37/ASTM D 412, Die C) 3.4.6 Elongation at Break, %, min 220 135 (Test Method according to para 3.4.5) ENGINEERING
7、MATERIAL SPECIFICATIONWSP-M2D455-A/A2Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 A A2 3.4.7 Modulus at 100%, MPa, Elongation 6.0 6.0 (Test Method according to para 3.4.5) 3.4.8 Tear Strength, kN/m, min 20 20 (ISO 34, Method B, Procedure A/ ASTM D 624, Di
8、e C) 3.4.9 Brittleness Point, /C, min -17 -10 (ISO 812, Type B specimen/ ASTM D 2137, Method A) 3.4.10 Ozone Resistance, max Rating 0 Rating 0 (FLTM BP 101-01, Procedure A) 3.4.11 Compression Set, %, max 40 40 (ISO 815/ASTM D 395, Method B, except 25% compression, plied-up Type 1 specimens, 168 h at
9、 165 +/- 2 C) 3.5 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 168 h at 165 +/- 2 C) 3.5.1 Hardness Change +/- 4 +/- 4 3.5.2 Tensile Strength Change, % 0 to +20 -10 to +20 3.5.3 Elongation Change, % +/- 20 -25 to +15 3.5.4 Visual Evaluation No surface tackiness or cracks when folded flat
10、 against itself. 3.6 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h at 165 +/- 2 C) 3.6.1 Hardness Change +/- 4 0 to + 6 3.6.2 Tensile Strength Change, %, max +25 +50 3.6.3 Elongation Change, %, max -25 -50 3.6.4 Visual Evaluation No surface tackiness or cracks when folded flat agai
11、nst itself. ENGINEERING MATERIAL SPECIFICATIONWSP-M2D455-A/A2Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 4 3.7 IMMERSION IN OIL No. 1 (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C) A A2 3.7.1 Hardness Change, pts. +/- 4 +/- 4 3.7.2 Tensile Strength Change, %
12、5 to +20 -25 to +10 3.7.3 Elongation Change, % 0 to +30 -20 to +15 3.7.4 Volume Change, % -1 to +4 -3 to +3 3.7.5 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.8 IMMERSION IN OIL IRM 103 (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C) 3.8.1 Hardness Change, pts. +/
13、 4 -6 to +2 3.8.2 Tensile Strength Change, % -10 to +15 -35 to +5 3.8.3 Elongation Change, % -5 to +25 -15 to +25 3.8.4 Volume Change, % +1 to +4 +1 to +5 3.8.5 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.9 IMMERSION IN THREE CURRENTLY APPROVED TRANSMISSION F
14、LUIDS OF AFFECTED MODEL YEAR (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C, see para 5.1) 3.9.1 Hardness Change, pts. +/- 4 +/- 4 3.9.2 Tensile Strength Change, % 0 to -30 0 to -60 3.9.3 Elongation Change, % 0 to -50 -35 to +15 3.9.4 Volume Change, % 0 to +4 0 to +4 3.9.5 Visual Evaluation No surface t
15、ackiness or cracks when folded flat against itself. ENGINEERING MATERIAL SPECIFICATIONWSP-M2D455-A/A2Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4 3.10 IMMERSION IN THREE CURRENTLY APPROVED AUTOMATIC TRANSMISSION FLUIDS OF AFFECTED MODEL YEAR (ISO 1817/AST
16、M D 471, 1000 h at 150 +/- 2 C, see para 5.1) A A2 3.10.1 Hardness Change, pts. -2 to +6 -2 to +6 3.10.2 Tensile Strength Change, %, max -45 -65 3.10.3 Elongation Change, %, max -65 -75 3.10.4 Volume Change, % 0 to +4 0 to +4 3.10.5 Visual Evaluation No surface tackiness or cracks when folded flat a
17、gainst itself. 3.11 IMMERSION IN DISTILLED WATER (ISO 1817/ASTM D 471, 168 h at 100 C (boiling) 3.11.1 Hardness Change, pts 0 to +10 -5 to +10 3.11.2 Tensile Strength Change, % max -20 -20 3.11.3 Elongation Change, %, max +50 +50 5. GENERAL INFORMATION The information below is provided for clarifica
18、tion 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 15/GM-D01-D Transmission & Axle Engineering Car Engineering Materials & Fasteners Engineering Ford Motor Co. Ltd Ford Motor Company Research & Engineering Centre PO Box 2097 Laindon, Basildon Bin 29B Essex SS15 6EE, England Livonia, MI 48151, USA Materials Engineering Product Engineering Office Ford Motor Co. of Australia Ltd Princes Highway, Norlane Victoria 3214, Australia
