1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2009 08 27 N-STATUS No Replacement Named C. Mracna, NA 2004 09 16 Revised Para 3.0 inserted; para 3.1, 3.2, 3.3, 3.5, 3.7 & 4 deleted 1990 10 02 Released NB00I10097559000 GAM M.A. Myers M.P. Printed copies are uncontrolled Copyright 2009, Ford
2、 Global Technologies, LLC Page 1 of 3 POLYURETHANE (PUR) ELASTOMER, MICROCELLULAR, ESB-M2D395-A 11 - 12% GLASS FIBER REINFORCED, RRIM, EXTERIOR, PAINTABLE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a glass fiber reinforced reaction injection molded (RRIM) th
3、ermosetting polyurethane containing an internal mold released (IMR) formed from components introduced together and reacted in the part mold cavity. 2. APPLICATION This specification was released originally for material used in the manufacture of lower bodyside spats or fairings. 3. REQUIREMENTS 3.0
4、STANDARD REQUIREMENTS FOR PRODCUTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MOLDED TEST SPECIMEN 3.4.1 Preparation of Test Specimens All tests specimens shall be cut from 3.2 mm nominal thickne
5、ss slab stock prepared from production compound. 3.4.2 Density 1.08 - 1.18 g/cm3(ASTM D 792, Method A1) 3.4.3 Glass Fiber Content 9 - 13% (ASTM D 2584, Method A, 1 h at 600 +/- 25 C) 3.4.4 Hardness, Durometer D 50 - 60 (ASTM D 2240, instantaneous reading) 3.4.5 Tensile Strength, min 15.0 MPa (ASTM D
6、 638M, Type M-II, 115 min x 6 x 3.5 +/- 0.2 mm specimen, 500 mm/min test speed) 3.4.5.1 Elongation, min 60% (Test Method according to para 3.4.5) ENGINEERING MATERIAL SPECIFICATIONESB-M2D395-A Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 2 of 3 3.4.6 Tear Streng
7、th, min 38 kN/m (ASTM D 624, Die C, all specimens die cut) 3.4.7 Flexural Modulus (ASTM D 790M, Method I, Procedure A, 80 x 10 x 3.5 +/- 0.2 mm specimen, 64 mm support span) 3.4.7.1 At 70 +/- 2 C, min 140 MPa 3.4.7.2 At 23 +/- 2 C 225 - 450 MPa 3.4.7.3 At -30 +/- 2 C, max 1.0 GPa 3.4.8 Brittleness P
8、oint, max +5 C (ASTM D 2137, Method A, buff samples to required thickness on one side only. The unbuffed side of the sample shall be subjected to tension during testing) 3.4.9 Water Immersion Dimensional +1.0% Stability, Expansion, max (FLTM BO 129-01, after 240 h) 3.4.10 Water Absorption, By Weight
9、 max (FLTM BO 129-02) 3.4.10.1 After 24 h 2.0% 3.4.10.2 After 240 h 4.5% 3.4.11 Heat Aging Performance (ASTM D 573, 150 +/- 50 air changes/h, 1,000 h at 100 +/- 2 C) 3.4.11.1 Tensile Strength Change, max -25% (Test per para 3.4.5) 3.4.11.2 Elongation Change, max -5% (Test per para 3.4.5) 3.4.11.3 H
10、ardness Change +/- 10 3.4.12 Humidity Aging Performance (1,000 h at 38 +/- 2 C and 95 - 100% R.H., conduct tests 2 +/- 0.25 h after removal from test chamber) ENGINEERING MATERIAL SPECIFICATIONESB-M2D395-A Printed copies are uncontrolled Copyright 2009, Ford Global Technologies, LLC Page 3 of 3 3.4.
11、12.1 Tensile Strength Change, max -25% (Test per para 3.4.5) 3.4.12.2 Elongation Change, max -15% (Test per para 3.4.5) 3.4.12.3 Hardness Change +/- 10 3.6 DECORABILITY Parts fabricated from materials defined by this specification requiring a decorative coating (paint, etc.) must meet the engineerin
12、g performance specification requirements shown on the drawing. All decorative coating materials must be approved and released for use by the affected product engineering office. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 9 - 12E-5/C (ASTM D 696) 5.2 MOLD SHRINKAGE 0.009 - 0.011 (ASTM D 955, approx. 150 x 100 x 3.5 +/- 0.2 mm molded specimen)
