1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2003 06 04 Revised Suffix A3 added and completely revised B Hennessey 2000 03 27 Revised Aged Properties change to absolute B Hennessey 1987 05 05 SM/ER 4802 TC Final Release B Hennessey Printed copies are u
2、ncontrolled Page 1 of 5 Copyright 2003, Ford Global Technologies, Inc. TUBE, EPICHLOROHYDRIN (ECO) RUBBER, FUEL AND OIL WSD-M96D9-A RESISTANT TUBE, EPICHLOROHYDRIN (ECO) RUBBER, FUEL, OIL AND ACIDIC WSD-M96D9-A2 AQUEOUS CONDENSATE RESISTANT TUBE, EPICHLOROHYDRIN (ECO) RUBBER, FUEL, OIL, ACIDIC WSS-M
3、96D9-A3 AQUEOUS CONDENSATE, VACUUM/PRESSURE RESISTANT 1. SCOPE The materials defined by these specifications are non-reinforced epichlorohydrin rubber molded or extruded tubes. 2. APPLICATION The material was released originally for use as engine compartment tubing for emission control, vacuum and c
4、rankcase ventilation systems where good resistance to ozone, oil, vacuum collapse and tearing is required. It is capable of continuous operation at temperatures up to 130 C and withstanding peak temperatures up to 150 C. The material also has moderate resistance to oxygenated fuels and remains servi
5、ceable at - 40 C. Tubes conforming to Suffix -A2 have good resistance to hot acidic aqueous engine condensates and should be used where prolonged exposure is anticipated. Tubes conforming to Suffix -A3 are additionally resistant to vacuum collapse and pressure dilation. 3. REQUIREMENTS 3.0 STANDARD
6、REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 DYNAMIC MECHANICAL ANALYSIS (ASTM D 4065) Ford Motor Company, at its option, may establish shear modulus/damping vs. temperatu
7、re curves plotted for - 50 to + 170 C temperature range for material/parts supplied to this specification. The shear modulus and damping curves established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall
8、produce shear modulus and damping curves that correspond to the reference standard when tested under the same conditions. ENGINEERING MATERIAL SPECIFICATION WSD-M96D9-A WSD-M96D9-A2 WSS-M96D9-A3 Page 2 of 5 3.3 FINISHED PART REQUIREMENTS The finished part must conform with the requirements of any re
9、levant performance specification and/or the relevant System Design Specifications (SDS). 3.4 TUBE CONSTRUCTION The tube shall consist of an extrusion or molding of epichlorohydrin rubber without internal or external reinforcement. 3.5 MATERIAL TESTING The following tests shall be performed on finish
10、ed hoses and/or test specimens cut from them. The test specimens shall be die-cut from the finished parts and buffed or slit to the required thickness where necessary. When not feasible, specimens cut from molded test slabs manufactured from the same material with an equivalent state of cure shall b
11、e used. The test slabs shall have the following dimensions: 150 x 150 mm, min x 2.0 +/- 0.2 mm 3.6 ORIGINAL PROPERTIES 3.6.1 Hardness, International 65 - 75 IRHD (ISO 48/ASTM D 1415) 3.6.2 Hardness, Durometer A 65 - 75 (ISO 868/ASTM D 2240, instantaneous, plied-up specimens. Hand held durometers sha
12、ll not be used) 3.6.3 Tensile Strength, min 10.0 MPa (ISO 37/ASTM D 412, Die C) 3.6.4 Elongation at Break, min 200% (Test method according to para 3.7.3) 3.6.5 Modulus at 100% Elongation, min 3.0 to 6.0 MPa (Test method according to para 3.7.3) 3.6.6 Tear Strength, min 25 kN/m (ISO 34, Method b, pro
13、cedure (a)/ ASTM D 624, Die C) ENGINEERING MATERIAL SPECIFICATION WSD-M96D9-A WSD-M96D9-A2 WSS-M96D9-A3 Page 3 of 5 3.6.7 Compression Set ,max 30% (ISO 815/ASTM D 395, Method B, except 25% compression, plied-up specimens, 22 h at 100 +/- 2 C) 3.6.8 Extractables, max (ASTM D 297) 3.6.8.1 Total Extract 10% 3.6.8.2 Waxy Hydrocarbons 0.75% or 1.0% if Total Extract ECO
