1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2003 05 15 Revised Para 3.0 inserted ; Para 3.1, 3.8, 3.9, 3.10, 4 deleted 1991 12 28 CF0DE00107002082 Revised 3.4, 3.6.3 L. Rumao1988 10 31 CF4SRD107602201 Released J. B. HuebnerPrinted copies are uncontrol
2、led Page 1 of 4 Copyright 2003, Ford Global Technologies, Inc. COPPER WIRE, SOFT ROUND, MODIFIED POLYESTER INSULATION ESF-M2L68-A WITH POLYAMIDE-IMIDE OVERCOAT, 200 C COPPER WIRE, SOFT ROUND, MODIFIED POLYURETHANE INSULATION ESF-M2L68-A2 WITH POLYAMIDE OVERCOAT, SOLDERABLE, 155 C 1. SCOPE The materi
3、al defined by this specification is a soft round copper wire with a single film high temperature insulation and an overcoat. 2. APPLICATION This specification was released originally for material used for the DIS coil primary winding. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIAL
4、S Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 COLOR The color of the high temperature coating shall be: ESF-M2L68-A Brown ESF-M2L68-A2 Red 3.3 BARE WIRE 3.3.1 Size 0.691 - 0.701 mm 3.3.2 Electrical Resistivit
5、y, max 1.7241 micro ohm.m (ASTM B 193, at 20 C) ENGINEERING MATERIAL SPECIFICATION ESF-M2L68-A/A2 Page 2 of 4 Copyright 2003, Ford Global Technologies, Inc. 3.3.3 Resistance Resistance for any given wire must fall within the range obtained by calculating resistance for both the high and low diameter
6、. The following formula may be used: Resistivity x Length Resistance = - Cross Section Resistance micro ohms Resistivity - 1.7241 micro ohm/cm Length - centimeters Cross Section - square centimeters 3.3.4 Tensile Strength, max 265 MPa (ASTM B 3) 3.3.5 Elongation, min 25% (ASTM B 3, 254 mm gage lengt
7、h) 3.4 JOINTS Each spool of wire shall be one continuous length without any joints. 3.5 COATING 3.5.1 Type ESF-M2L68-A: Modified polyester insulation with a polyamide-imide overcoat. ESF-M2L68-A2: Modified polyurethane insulation with a polyamide overcoat (solderable). 3.5.2 Dimensions Thickness, mi
8、n 0.014 mm Overall diameter, max 0.746 mm Test Method: Discard approximately 3.5 m of wire from the spool. Measure the diameter of the coated wire on the spool at 2 points 1.2 m apart. Remove the coating by suitable means not injurious to the bare wire at approximately the same position on the wire
9、and repeat the measurements around the bare wire. In each set of measurements, the diameter shall be measured at 4 points on the circumference approximately 45 degrees apart. The difference between the average diameter of the coated wire and the average diameter of the bare wire shall be considered
10、addition due to the coating. ENGINEERING MATERIAL SPECIFICATION ESF-M2L68-A/A2 Page 3 of 4 Copyright 2003, Ford Global Technologies, Inc. 3.5.3 Adhesion The insulation must not (NEMA MW 1000/IEC 851) show puncture, crack, or break 3.5.4 Flexibility The insulation must not (NEMA MW 1000/IEC 851) show
11、 puncture, crack, or break 3.5.5 Heat Aging The insulation must not (NEMA MW 1000/IEC 851) show puncture, crack, or break ESF-M2L68-A 200 +/- 3 C ESF-M2L68-A2 175 +/- 3 C 3.5.6 Elongation, min 25 % (NEMA MW 1000/IEC 851) 3.5.7 Chemical Resistance The insulation must not (NEMA MW 1000/IEC 851) show p
12、uncture, crack, or break 3.6 COATED WIRE 3.6.1 Softness of Copper, Springback, max 56 (NEMA MW 1000/IEC 851) 3.6.2 Dielectric Strength, min 106 kV/mm (NEMA MW 1000/IEC 851) 3.6.3 Fault Testing, max 10 (NEMA MW 1000/IEC 851) 3.6.4 Heat Resistance The insulation must not show puncture, crack, or break
13、 A sample of coated wire, 10 - 20 cm long, shall be placed in an oven for 1 h at the following temperatures: ESF-M2L68-A 220 +/- 3 C ESF-M2L68-A2 175 +/- 3 C ENGINEERING MATERIAL SPECIFICATION ESF-M2L68-A/A2 Page 4 of 4 Copyright 2003, Ford Global Technologies, Inc. 3.6.5 Thermoplastic Flow, min (NE
14、MA MW 1000/IEC 851) ESF-M2L68-A 300 C ESF-M2L68-A2 200 C 3.6.6 Solderability, max (ESF-M2L68-A2 only) 6 s (NEMA MW 1000/IEC 851, at 400 C) 3.6.7 Scrape Resistance, min Each of 3 tests, min 445 g Average of 3 tests, min 525 g 3.7 CONFORMITY WITH THIS SPECIFICATION In the case of failure under any of
15、the foregoing tests, two additional tests shall be made, and the wire shall be regarded as meeting the requirements of this specification if the results of the additional tests are satisfactory. The wire shall be regarded as not meeting the requirements of this specification if the results of either of the two additional tests are unsatisfactory.
