1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2004 10 13 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.12, 3.13 & 4 1992 02 26 Released NT00-E-10155776-036 T.P. KochPrinted copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 1 of 4 POLYACRYLIC (PA) ELASTOMER AUTOMA
2、TIC WSP-M2D465-A TRANSMISSION CLUTCH PISTON SEAL 1. SCOPE The material defined by this specification is a polyacrylic elastomer blend, possessing good molding characteristics, suitable for high temperature and having low swell in automatic transmission fluids. 2. APPLICATION This specification was r
3、eleased originally for material used as loose lip clutch piston seals in automatic transmission applications. The material is capable of withstanding a -40 C to 150 C temperature range in a reciprocating oil soaked environment. This material can possibly be used in other applications where creep rel
4、axation (compression set) is not a concern. 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). 3.4 MATERIAL TESTING 3.4.1 Preparation of Test Specimens
5、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 following dimensions: 150 x 150 mm, mi
6、n x 2.0 +/- 0.2 mm 3.5 ORIGINAL PROPERTIES 3.5.1 Density 1.40 +/- .02 g/cm3(ISO 1183, Method A/ASTM D 297) 3.5.2 Hardness, International 76 - 84 (ISO 48/ASTM D 1415) 3.5.3 Hardness, Durometer A 77 - 83 (ISO 868/ASTM D 2240, instantaneous, plied-up specimen. Hand held durometers shall not be used) 3.
7、5.4 Tensile Strength, min 10 MPa (ISO 37/ASTM D 412, Die C) 3.5.5 Elongation at Break, min 100% (Test Method according to para 3.5.4) ENGINEERING MATERIAL SPECIFICATIONWSP-M2D465-APrinted copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 2 of 4 3.5.6 Modulus at 100% Elongati
8、on 9.5 MPa (Test Method according to para 3.5.4) 3.5.7 Tear Strength, min 15 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 101-01, Procedure A) 3.5.10 Compres
9、sion Set, max 65% (ISO 815/ASTM D 395, Method B, except 25% compression, plied-up specimens, 168 h at 150 +/- 2 C) 3.6 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 168 h at 150 +/- 2 C) 3.6.1 Hardness Change +2 to +11 3.6.2 Tensile Strength Change, max 0 to +20% 3.6.3 Elongation Change,
10、max -30 to +15% 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 150 +/- 2 C) 3.7.1 Hardness Change +7 to +16 3.7.2 Tensile Strength Change, max -30% 3.7.3 Elongation Change, max -50% 3.7.4
11、Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.8 IMMERSION IN OIL NO.1 (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C) 3.8.1 Hardness Change 0 to +10 3.8.2 Tensile Strength Change, max -20 to +5% 3.8.3 Elongation Change, max -15 to +15% ENGINEERING MATERIAL SPECIFICA
12、TIONWSP-M2D465-APrinted copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 3 of 4 3.8.4 Volume Change -5 to +3% 3.8.5 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.9 IMMERSION IN OIL NO.3 (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C) 3.9.1
13、Hardness Change -25 to 0 3.9.2 Tensile Strength Change, max -35 to 0% 3.9.3 Elongation Change, max -15 to +15% 3.9.4 Volume Change +15 to +25% 3.9.5 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.10 IMMERSION IN THREE CURRENTLY RELEASED AUTOMATIC TRANSMISSION FLU
14、IDS (ISO 1817/ASTM D 471, 168 h at 150 +/- 2 C, see para 5.1) 3.10.1 Hardness Change 0 to -15 3.10.2 Tensile Strength Change, max -25 to 0% 3.10.3 Elongation Change, max -30 to +10% 3.10.4 Volume Change +5 to +15% 3.10.5 Visual Evaluation No surface tackiness or cracks when folded flat against itsel
15、f 3.11 IMMERSION IN THREE CURRENTLY RELEASED AUTOMATIC TRANSMISSION FLUIDS (ISO 1817/ASTM D 471, 1000 h at 150 +/- 2 C, see para 5.1) 3.11.1 Hardness Change -15 3.11.2 Tensile Strength Change, max -25% 3.11.3 Elongation Change, max -35% 3.11.4 Volume Change +5 to +15% 3.11.5 Visual Evaluation No sur
16、face tackiness or cracks when folded flat against itself ENGINEERING MATERIAL SPECIFICATIONWSP-M2D465-APrinted copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 4 of 4 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting
17、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 Supervisor Research and Engineering Centre Materials and Fasteners Engrg. Ford Motor Company Ltd Ford
18、Motor 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 COMPRESSION SET, max 80% (1000 h at 150 +/- 2 C, test according to para 3.5.10)
