1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2004 10 13 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.11 deleted 3.4 L. M. Hess1993 03 03 Released NE01E10127076082 E. J. DudaPrinted copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 1 of 4 DUCT, EPDM, MOLDED AIR
2、INTAKE WSE-M2D470-A1 DUCT, CPE, CHLORINATED POLYETHYLENE, MOLDED AIR INTAKE WSE-M2D470-A2 DUCT, CSM, CHLOROSULFONATED POLYETHYLENE, MOLDED AIR INTAKE WSE-M2D470-A3 DUCT, ECO, EPICHLOROHYDRIN, MOLDED AIR INTAKE WSE-M2D470-A4 DUCT, EPDM, LOW OIL SWELL, MOLDED AIR INTAKE WSS-M2D470-A5 1. SCOPE The mate
3、rial defined by these specifications is a non-reinforced molded duct with good compression set heat and ozone resistance. 2. APPLICATION These specifications were released originally for material used for large diameter molded tubing or ducts used in low pressure or vacuum applications such as air i
4、ntake lines. A convoluted part can be molded for flexibility. WSE-M2D470-A1 ducts have good heat and ozone resistance with good to fair compression set. This material has very poor fuel and oil resistance, but can withstand incidental exposure. WSE-M2D470-A2/A3 and WSS-M2D470-A5 ducts have good heat
5、 and ozone resistance with fair fuel and oil resistance and fair compression set. These ducts should be used where residual vapors contain small amounts of fuel and/or oil. WSE-M2D470-A4 ducts have good heat, ozone, compression set, fuel and oil resistance. These ducts should be used where exposure
6、to fuel and oil will be encountered. 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 All tes
7、t specimens shall be die-cut from molded test slabs. The test sheets shall have the following dimensions: 150 x 150 mm, min x 2.0 +/- 0.2 mm ENGINEERING MATERIAL SPECIFICATIONWSE-M2D470-A1/A2/A3/A4WSS-M2D470-A5Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 2 of 4
8、3.5 ORIGINAL PROPERTIES A1 A2 A3 A4 A5 3.5.1 Hardness, Durometer A, 75 70 70 75 75 +/- 5(ISO 868/ASTM D 2240, instantaneous, plied-up specimen. Hand held durometers shall not be used) 3.5.2 Tensile Strength, 9.0 12.0 10.5 9.0 8.0 MPa, min (ISO 37/ASTM D 412, Die C) 3.5.3 Elongation at Break, %, min
9、280 300 220 250 200 (Test Method according to para 3.6.3) 3.5.4 Modulus at 100% 4.3 3.0 3.8 3.3 4.0 Elongation, MPa, min (Test Method according to para 3.6.3) 3.5.5 Tear Strength, kN/m, min 25 30 20 30 15 (ISO 34, Method B, procedure (a)/ASTM D 624, Die C) 3.5.6 Compression Set, %, max 65 48 78 90 6
10、0 (ISO 815/ASTM D 395, Method B, except 25% compression, solid button specimens. 70 h at 121 C) 3.5.7 Ozone Resistance, max 0 0 0 0 0 (FLTM BP 101-01) 3.5.8 Low Temperature -38 -35 -30 -35 -38 Retraction, TR-10, C, min (ASTM D 1329) 3.6 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1000 h
11、 at 110 +/- 2 C) Hardness, Durometer A, +14 +15 +12 +20 +14 Change, max Tensile Strength Change, %, +35 +/- 22 +/- 18 -40 -20 Max Elongation at Break Change, %, max -69 -57 -48 -75 -69 ENGINEERING MATERIAL SPECIFICATIONWSE-M2D470-A1/A2/A3/A4WSS-M2D470-A5Printed copies are uncontrolled Copyright 2004
12、 Ford Global Technologies, LLC Page 3 of 4 A1 A2 A3 A4 A5 3.7 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 168 h at 130 +/- 2 C) Hardness, International, +14 +13 +10 NR +14 Change, max Tensile Strength Change, %, +/- 30 +/- 20 +/- 20 NR +/- 20 max Elongation at Break Change, -60 -55 -48
13、 NR -60 %, max 3.8 IMMERSION IN OIL NO. 3 or IRM 903 OIL (A5 only) (ISO 1817/ASTM D 471, 168 h at 130 +/- 2 C) Hardness International, NR -32 -35 +/- 15 -50 Change, max Tensile Strength Change, %, NR -60 -35 +/- 30 -50 max Elongation at Break Change, NR -75 -60 -70 -60 %, max Volume Change, % max NR
14、 +55 +52 +10 75 3.9 IMMERSION IN FUEL C (ISO 1817/ASTM D 471, 70 h at 23 +/- 2 C) Hardness, International NR -30 -30 -30 -35 Change, max Tensile Strength Change, %, NR -60 -50 -40 -50 max Elongation at Break Change, NR -55 -40 -50 -60 %, max Volume Change, %, max NR +80 +40 +40 +65 ENGINEERING MATER
15、IAL SPECIFICATIONWSE-M2D470-A1/A2/A3/A4WSS-M2D470-A5Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 4 of 4 A1 A2 A3 A4 A5 3.10 IMMERSION IN FUEL B +15% METHANOL (ISO 1817/ASTM D 471, 70 h at 23 +/- 2 C) Hardness, Durometer A, NR -40 -38 -35 -40 Change, min Tensile
16、Strength Change, %, NR -65 -60 -55 -40 max Elongation at Break Change, NR -45 -38 -70 -45 %, max Volume Change, %, max NR +75 +55 +80 +70 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. 5.1 RECYCLING CODE WSE-M2D470A1 and WSS-M2D470-A5 EPDMEPECSMECO
