1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2003 01 30 Revised Para 3.0 inserted ; Para 3.1, 3.2, 3.3, 3.17, 3.18 4 deleted 1991 01 31 DE00E00107002086 Reactivated & Updated J.B. Huebner 1963 07 01 F6-1077 Released Printed copies are uncontrolled Page
2、 1 of 3 Copyright 2003, Ford Global Technologies, Inc. PAPER KRAFT, ELECTRICAL INSULATOR ESF-M4E5-A 1. SCOPE The material defined by this specification is a high grade Kraft insulating paper with high finish and of uniform quality. It shall also have the properties of unusual toughness and flexibili
3、ty. 2. APPLICATION This specification was released originally for material used as an insulator in the construction of starter motors, generators, and ignition coils 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys
4、Standard Requirements For Production Materials (WSS-M99P1111-A) 3.4 CONSTRUCTION 3.4.1 Fiber Content 100 % Kraft fiber 3.4.2 Sizing Shall be free of sizing material 3.4.3 Color Any coloring shall be made withan aniline dye 3.4.4 Appearance The finished paper shall be free from cracks, breaks or flaw
5、s of any kind. The surface must be clean and show uniform texture throughout and be capable of being coated with insulation varnishes and waxes. 3.4.5 Consistency The paper shall be free from conducting particles and other foreign material as is consistent with manufacturing processes. ENGINEERING M
6、ATERIAL SPECIFICATION ESF-M4E5-A Page 2 of 3 Copyright 2003, Ford Global Technologies, Inc. 3.5 ASH CONTENT, max 1 % (TAPPI T 413) 3.6 MOISTURE, max 9 %(ASTM D 644) 3.7 pH (water extract) 6.5-7.5 (ASTM D 202) 3.8 CHLORIDES, max 35 ppm 3.9 SULPHATES No trace (TAPPI T 255) 3.10 DENSITY, min 0.75 g/cm3
7、 (ASTM D 202) 3.11 BURSTING STRENGTH, min Conversion Table (ASTM D 774) mm N MPa 0.13 222 0.34 0.25 445 0.69 0.38 667 1.00 0.51 900 1.38 - 1112 1.72 3.12 BREAKING STRENGTH IN TENSION, min Conversion Table (ASTM D 828, based on 25 mm width, mm N MPa machine direction 0.13 222 0.34 0.25 445 0.69 0.38
8、667 1.00 0.51 900 1.38 - 1112 1.72 On widths less than 13m , the breaking values for such widths shall be agreed upon by the purchaser and the supplier. 3.13 ELONGATION, Lengthwise, avg 2.5 % (ASTM D 202) 3.14 DIELECTRIC STRENGTH, min (ASTM D 202, short time ) Caliper 0.13-0.25 mm 6 kV/mm Above 0.25
9、0.51 mm 5 kV/mm ENGINEERING MATERIAL SPECIFICATION ESF-M4E5-A Page 3 of 3 Copyright 2003, Ford Global Technologies, Inc. 3.15 SPLITTING No splitting or separation of the paper when a corner forming a triangle of approximately 25 mm on each side is bent back sharply on the sheet. 3.16 CRACKING No cracking shall occur ( at room temperature immediately after conditioning) when a sample is bent twice around a mandrel which diameter is : . 10 times paper thicknessafter subjecting paper to 80 +/- 2 C for 16 h. . 50 times paper thickness after subjecting paper to 120 +/- 2 C for 48 h.
