1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 06 25 N-STATUS No replacement named C. Mracna, NA 2004 07 27 Revised Para 3.0 inserted; para 3.4, 3.5, 3.6, 3.7, 3.8 & 4 deleted 1973 01 11 Released AC10-27 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Pag
2、e 1 of 3 ELASTOMER, POLYESTER, MOLDING COMPOUND ESW-M2D230-A1 ELASTOMER, POLYESTER, MOLDING COMPOUND ESW-M2D230-A2 ELASTOMER, POLYESTER, MOLDING COMPOUND ESW-M2D230-A3 ELASTOMER, POLYESTER, MOLDING COMPOUND ESW-M2D230-A4 NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifica
3、tions are polyterephthalate ester injection molding compounds with excellent heat resistance. 2. APPLICATION These specifications were released originally for material used as transmission bellcrank grommets where toughness, vibration and shock insulation is required at elevated temperatures. ESW-M2
4、D230-A1 40 Durometer D Hardness ESW-M2D230-A2 55 Durometer D Hardness ESW-M2D230-A3 63 Durometer D Hardness ESW-M2D230-A4 72 Durometer D Hardness 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirement
5、s For Production Materials (WSS-M99P1111-A). 3.1 RAW MATERIAL 3.1.1 Specific Gravity (ASTM D 792) A1 1.17 +/- 0.03 A2 1.20 +/- 0.03 A3 1.22 +/- 0.03 A4 1.25 +/- 0.03 3.1.2 Moisture Content, max A1 through A4 0.10% 3.1.3 Flow Rate, min (ASTM D 1238, 2160 g load) A1 (190 C) 4.1 - 6.5 g/10 A2 (220 C) 1
6、4.0 - 21.0 g/10 A3 (220 C) 7.0 - 10.5 g/10 A4 (240 C) 10.5 - 15.0 g/10 ENGINEERING MATERIAL SPECIFICATIONESW-M2D230-A1/A2/A3/A4Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 3 3.2 MOLDED TEST SPECIMEN 3.2.1 Hardness, Durometer D (ASTM D 2240) A1 41 +/- 3 A2 5
7、6 +/- 3 A3 66 +/- 3 A4 70 +/- 3 3.2.2 Tensile Strength at Break, min 15.8 MPa (A1 only) (ASTM D 412, Die C, 50 mm/min test speed) Elongation, min 380% Tensile Stress at Yield, min (ASTM D 412, Die C, 50 mm/min test speed) A1 _ A2 12.4 MPa A3 16.9 MPa A4 22 MPa 3.2.3 Compression Set, max (ASTM D 395,
8、 Method A, 22 h at 70 C) A1 8% 2 3A3 % 4 23.2.4 Tear Strength, min (ASTM D 624, Die C) A1 90 kN/m A2 130 kN/m A3 160 kN/m A4 179 kN/m 3.2.5 Modulus of Elasticity (ASTM D 790, Method I, Procedure B) A1 55 - 74 MPa A2 158 - 227 MPa A3 255 - 420 MPa A4 413 - 717 MPa 3.2.6 Drop Weight Impact (-40 C, 34
9、N.m) A1 through A4 No fracture ENGINEERING MATERIAL SPECIFICATIONESW-M2D230-A1/A2/A3/A4Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 3 3.2.7 Heat Aged (ASTM D 573, 21 days at 125 C) Hardness, Durometer D Change A1 -10 to +5 A2 -5 to +10 A3 -10 to +5 A4 -5 to +10 Tensile Strength at Break Change -15 to +40% (A1 only) Elongation Change, max (A1 only) 60% Tensile Stress at Yield Change, max A1 - A2 35% A3 40% A4 35% 3.3 MOLDED PART 3.3.1 Specific Gravity (ASTM D 792) A1 1.17 +/- 0.03 A2 1.20 +/- 0.03 A3 1.22 +/- 0.03 A4 1.25 +/- 0.03
