1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2010 07 14 A1/A2 N-STATUS A1 replaced by WSK-M4D725-A A2 replaced by WSB-M4D921-A A. Pan, APA 1981 12 01 Revised and Retyped CE3L-RD863100-E, Supp #40 1972 01 18 Released ESF-M4D341-A F6B-59 Page 1 of 3 POLY
2、ESTER, THERMOPLASTIC - 30% GLASS REINFORCED ESE-M4D341-A1 NOT TO BE USED FOR NEW DESIGN POLYESTER, THERMOPLASTIC - 30% GLASS REINFORCED ESE-M4D341-A2 MINERAL FILLED NOT TO BE USED FOR NEW DESIGN POLYESTER, THERMOPLASTIC - 25% GLASS REINFORCED INACTIVE ESE-M4D341-B1 1. SCOPE: The materials defined by
3、 this specification are glass fiber reinforced and filled thermoplastic polyester resins with good dimensional stability. 2. APPLICATION: This specification was released originally for materials used for molding primary bobbins for oil filled ignition coils. ESE-M4D341-A1 replaces and is same as ESF
4、-M4D341-A ESE-M4D341-B1 replaces and is same as ESF-M4D341-B 3. REQUIREMENTS: 3.1 INFRARED SPECTROPHOTOMETRY AND/OR THERMAL ANALYSIS Ford Motor Company, at its option, may conduct infrared and/or thermal analysis of material/parts supplied to this specification. The curves established for initial ap
5、proval shall constitute the reference standard and shall be kept on file at Central Laboratory. All samples shall produce curves that correspond to the reference standard when tested under the same conditions as those specified on the master curve. 3.2 MOLDED TEST SPECIMENS The following requirement
6、s are intended for initial qualification (ISIR) and to be rechecked at intervals specified by Quality Assurance. 3.2.1 Conditioning Test specimens shall be conditioned in the standard laboratory atmosphere, prior to and during testing, according to ASTM D 618. A1 A2 B1 3.2.2 Specific Gravity 1.50-1.
7、56 1.52-1.60 1.46-1.50 (ASTM D 792) ENGINEERING MATERIAL SPECIFICATION ESE-M4D341-A1/A2 ESE-M4D341-B1 Page 2 of 3 A1 A2 B1 3.2.3 Tensile Strength, psi (MPa), min 16 000 9000 12 500 (ASTM D 638, (111) (63) (87) 0.2 in (5 mm)/min) 3.2.4 Flexural Strength, psi (MPa), min 22 000 15 000 22 000 (ASTM D 79
8、0) (152) (104) (152) 3.2.5 Impact Strength, Izod, ft-lb/in (J/m), min 1.3 (70) 1.0 (54) 0.9 (48) (ASTM D 256, notched, 1/8 in (3.2 mm) sample) 3.2.6 Deflection Temperature, C min 196 170 196 (ASTM D 648, 1/4 x 5 in (6.4 x 125 mm) specimens as molded, 264 psi (1820 kPa) 3.2.7 Compressive Strength, ps
9、i (MPa), min 13 000 10 500 13 000 (ASTM D 695) (90) (73) (90) 3.2.8 Water Absorption, % max 0.12 0.10 0.12 (ASTM D 570, 24 h immersion) 3.2.9 Reinforcement/ Filler, % by weight 28-34 30 min 24-26 (1 h at 666 C or TGA) 3.2.10 Dielectric Strength, V/mil (kV/mm), min 460 (18) 425 (17) 460 (18) (ASTM D
10、149, short time, 1/8 in (3.2 mm) thick) 3.2.11 Arc Resistance, s min - 100 - (ASTM D 495) (Required for initial approval only) 3.3 MOLDED PART 3.3.1 Color Natural or as specified on engineering drawing. 3.3.2 Appearance Molded parts shall be uniform in density, texture and finish, free of visible po
11、rosity, warpage, heat scorch, checks, cracks, chipped edges and uneven surfaces. They shall also be free of other contamination. 3.3.3 Regrind and/or Blended Material Must meet Q101 Appendix D, or limits as specified on the engineering drawing. ENGINEERING MATERIAL SPECIFICATION ESE-M4D341-A1/A2 ESE
12、-M4D341-B1 Page 3 of 3 3.3.4 Additional Requirements Specific requirements for physical properties of molded or extruded parts shall be specified on the engineering drawing and/or engineering part specification. All critical areas with respect to these properties shall be clearly designated on the e
13、ngineering drawing. 3.4 SUPPLIERS RESPONSIBILITY Material supplied to this specification must be equivalent to that originally approved. Changes in formulation or processing shall not be made without prior approval as described in Supplier Procedure I-A. 4. APPROVAL OF SUPPLIERS: Suppliers to this s
14、pecification must be approved by the affected product engineering office. Procedure for gaining approval of a specific material to a new/existing ES-M specification is contained in Supplier Procedure I-A. Approved new suppliers will be added to the Engineering Materials Approved Source List. 5. GENE
15、RAL INFORMATION: The material data included herein is for information only and is not a requirement. 5.1 FLAMMABILITY Not self-extinguishing, slow burning 5.2 ELONGATION (ESE-M4D341-A2) 6% (ASTM D 638, 0.2 in (5 mm)/min) 5.3 FLEXURAL MODULUS (ESE-M4D341-A2) 1 x 106psi (6.9 GPa) (ASTM D 790) 5.4 IMPACT STRENGTH, Izod (ESE-M4D341-A2) 7 ft-lb/in (374 J/m) (ASTM D 256, unnotched)
