1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2002 10 14 Revised Updated & Renumbered 1997 07 31 Revised Revised para 3.2, 3.5 N. Vallabhanath 1967 07 11 F6-3162 Released (was XF-M2LX14) Printed copies are uncontrolled Page 1 of 3 Copyright 2002, Ford G
2、lobal Technologies, Inc. COPPER WIRE, SOFT OR ANNEALED ROUND - HEAVY ESF-M2L46-A HIGH TEMPERATURE POLYESTER OR POLYESTER - IMIDE AND AMIDE - IMIDE INSULATED 1. SCOPE The material defined by this specification is soft or annealed round copper wire insulated with a heavy film consisting of a high temp
3、erature polyester or polyester-imide resin and 20 % minimum amide-imide overcoat in accordance with NEMA MW 1000 & IEC 851 specification. 2. APPLICATION This specification was released originally for material used for the windshield wiper motor armature winding. 3. REQUIREMENTS 3.1 QUALITY SYSTEM RE
4、QUIREMENTS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 WIRE SIZE SPECIFICATIONS The wire size shall be specified on the engineering drawing and/or release according to the American Wire Gage number desired. E
5、xample: #16 gage ESF-M2L46-A. 3.3 COLOR The color of the soft or annealed round copper wire insulated with a heavy film consisting of a high temperature polyester or polyester-imide resin and 20 % minimum amide-imide overcoat shall be specified on the engineering drawing. 3.4 BARE WIRE The copper wi
6、re used as a base for the high temperature polyester coated wire shall conform to ESF-M2L1-A, except as noted herein. ENGINEERING MATERIAL SPECIFICATION ESF-M2L46-A Page 2 of 3 Copyright 2002, Ford Global Technologies, Inc. 3.5 JOINTS Joints made in the high temperature polyester insulated wire shal
7、l conform to ESF-M2L1-A and shall be covered with a polyester film so as to be equally as well covered as other portions of the wire. 3.6 INSULATION COATING AND THICKNESS The wire shall be coated with a continuous insulating film of high temperature polyester having an amide-imide overcoat, of such
8、quality as to meet the requirements of this specification. The minimum increase in the diameter of the wire due to the insulating film and the maximum overall diameter shall be as shown in NEMA MW1000, Part 2, Table H MW 35-C. The addition to the diameter of the bare wire due to the high temperature
9、 polyester coating shall be determined utilizing the test method shown in specification NEMA MW1000. 3.7 INTERMEDIATE SIZES For wire sizes between the American Wire Gage sizes, the increase in diameter due to the high temperature polyester coating shall be the same as for the next larger Awg size, a
10、nd the test values shall be the same as for the next smaller Awg size. 3.8 INSULATION ADHERENCE No cracks in the coating. (NEMA 1000, IEC 851) 3.9 INSULATION FLEXIBILITY No cracks in the coating. (NEMA 1000, IEC 851) 3.10 INSULATION AGING, Temperature Provide curve for the product. index 200 +/- 3 C
11、 (NEMA 1000, IEC 851) 3.11 ELONGATION (NEMA 1000, IEC 851) The insulated wire shall meet the requirements of NEMA Table. 3.12 INSULATION SOLUBILITY Insulation shall not soften. (NEMA 1000, IEC 851) ENGINEERING MATERIAL SPECIFICATION ESF-M2L46-A Page 3 of 3 Copyright 2002, Ford Global Technologies, I
12、nc. 3.13 SOFTNESS OF COPPER (NEMA 1000, IEC 851) The insulated wire shall meet the requirements of NEMA Table. 3.14 SCRAPE RESISTANCE Scrape resistance shall be measured in accordance with following method: 3.14.1 Unidirectional Scrape Resistance (NEMA 1000, IEC 851) The lowest “grams to fail“ load,
13、 representing failure of the insulating film, in any one of the three tests shall not be less than the minimum value and the average of the three tests shall not be less than the average value specified in Table II. 3.15 DIELECTRIC TEST, min 79 kV/mm (NEMA 1000, IEC 851) 3.16 CONTINUITY TEST (NEMA 1
14、000, IEC 851) Insulated wire shall meet the requirements of Table II. 3.17 HEAT SHOCK 220 C (NEMA 1000, IEC 851) 3.18 THERMOPLASTIC FLOW, min 288 C (NEMA 1000, IEC 851) 3.19 CONFORMITY WITH THIS SPECIFICATION In case of failure under any of the foregoing tests, two additional tests shall be made, an
15、d 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. 3.20 COEFFICIENT OF FRICTION 0.04 - 0.06 Average (NEMA MW 750)
