1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 19 Re-Activated Spec still being used in Europe C. Mracna, NA 2009 08 28 N-STATUS No known use. No Replacement Named C. Mracna, NA 1998 01 26 Activated B. Hennessey Printed copies are uncontrolled Copyright 2010, Ford Global Technologi
2、es, LLC Page 1 of 3 ETHYLENE/ACRYLIC (AEM) RUBBER, OIL RESISTANT, WSD-M2D447-A3 60 HARDNESS 1. SCOPE The material defined by this specification is a ethylene/acrylic rubber with nominal hardness of 60 IRHD. It is capable of continuous operation at temperatures up to 135 C and withstanding peak tempe
3、ratures up to 150 C. The material is resistant to oils up to 150 C and remains serviceable at -40 C. 2. APPLICATION The material was released originally for use as Oil Pan Gaskets. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform t
4、o the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MATERIAL TESTING The following test shall be performed on finished parts and/or test specimens cut from them. The test specimens shall be die-cut from finished parts and buffed or slit to the required thickness where
5、 necessary. When not feasible, specimens cut from molded test slabs manufactured from the same material with an equivalent state of cure shall be used. The test slabs shall have the following dimensions: 150 x 150 mm, min x 2.0 +/- 0.2 mm 3.5 ORIGINAL PROPERTIES 3.5.1 Hardness, International, IRHD 5
6、5 - 65 IRHD (ISO 48) 3.5.2 Tensile Strength, min 10.0 MPa (ISO 37, Die C) 3.5.3 Elongation at Break, min 250% (Test Method according to para 3.5.2) 3.5.4 Modulus at 100% Elongation 1.0 - 4.5 MPa (Test Method according to para 3.5.2) 3.5.5 Brittleness Point, max -40 C (ISO 812, Type B specimen) 3.5.6
7、 Ozone resistance, max Rating 0 (FLTM BP 101-01, Procedure A) ENGINEERING MATERIAL SPECIFICATIONWSD-M2D447-A3Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 3 3.5.7 Compression Set, max 25% (ISO 815, Method B except 25% compression, plied-up specimens, 70 h at
8、 135 +/- 2 C) 3.6 HEAT AGED (ISO 188, 150 +/- 50 air changes/h, 1000 h at 135 +/- 2C) 3.6.1 Hardness Change, max +15 3.6.2 Tensile Strength Change, max -15% 3.6.3 Elongation at Break Change, max -25% 3.6.4 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.7 HEAT AGE
9、D (ISO 188, 150 +/- 50 air changes/h, 168 h at 150 +/- 2C) 3.7.1 Hardness Change, max +12 3.7.2 Tensile Strength Change, max -20% 3.7.3 Elongation at Break Change, max -25% 3.7.4 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.8 IMMERSION IN OIL No. 1 (ISO 1817, 1
10、68 h at 150 +/- 2 C) 3.8.1 Hardness International Change, max -10 to 12 IRHD 3.8.2 Tensile Strength Change, max -20% 3.8.3 Elongation at Break Change, max -25% 3.8.4 Volume Change 10 to +10% 3.8.5 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.9 IMMERSION IN OIL
11、No. IRM 903 (ISO 1817, 168 h at 150 +/- 2 C) 3.9.1 Hardness International Change, max -15 to 0 IRHD 3.9.2 Tensile Strength Change, max -25% ENGINEERING MATERIAL SPECIFICATIONWSD-M2D447-A3Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 3 3.9.3 Elongation at Bre
12、ak Change, max -30% 3.9.4 Volume Change 0 to +30% 3.9.5 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 Hardness, Durometer A 55 - 65 (ISO 868, instantaneous)
