1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref
2、rom, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2010 SAE International All rights reserved. No part of this publication ma
3、y be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside US
4、A) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AMS3612CAEROSPACEMATERIALSPECIFICATIONAMS3612 REV. C Issued 1965-09 Reaffirmed 1998-09 Revised
5、2010-10 Superseding AMS3612B Polyester Film Electrical Grade, General Purpose RATIONALEThis document has been revised to remove specific military requirements described in former sections 4.2.2.1 and 5.1.6. 1. SCOPE 1.1 Form This specification covers a polyester resin in the form of film and film ta
6、pe. 1.2 Application This film has been used typically for parts requiring electrical insulating properties from 60 to +150 C (76 to +302 F), but usage is not limited to such applications. 1.3 Safety - Hazardous Materials While the materials, methods, applications, and processes described or referenc
7、ed in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precau
8、tionary measures to ensure the health and safety of all personnel involved. 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a
9、document unless a specific document issue is specified. When the referenced document has been cancelled and no superseding document has been specified, the last published issue of that document shall apply. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
10、-,-,-SAE AMS3612C Page 2 of 82.1 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM D 149 Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Co
11、mmercial Power Frequencies ASTM D 374 Thickness of Solid Electrical Insulation ASTM D 618 Conditioning Plastics and Electrical Insulating Materials for Testing ASTM D 882 Tensile Properties of Thin Plastic Sheeting 2.2 U.S. Government Publications Available from the Document Automation and Productio
12、n Service (DAPS), Building 4/D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, Tel: 215-697-6257, http:/assist.daps.dla.mil/quicksearch/.MIL-STD-2073-1 DOD Materiel, Procedures for Development and Application of Packaging Requirements 3. TECHNICAL REQUIREMENTS 3.1 Material Film shall be made from
13、saturated linear polyester resin. 3.2 Properties Film shall conform to the requirements shown in Table 1; tests shall be performed on the film supplied and in accordance with specified ASTM methods, insofar as practicable. Linear property requirements apply in the machine direction and in the transv
14、erse direction when width permits testing. Test specimens shall be conditioned in accordance with ASTM D 618, Procedure A, prior to testing. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS3612C Page 3 of 8TABLE 1 - PROPERTIESParagraph Propert
15、y Requirement Test Method 3.2.1Tensile Strength, minimum Nominal Thickness 0.0005 to 0.0140, inch, incl (0.013 to 0.356 mm, incl) 15.0 ksi (103 MPa) ASTM D 882 3.2.2Elongation, minimum Nominal Nominal Thickness Thickness Inch Millimeter 0.0005 0.013 0.0010 0.025 0.0015 0.038 0.0020 0.051 0.0030 0.07
16、6 0.0050 0.127 0.0075 0.190 0.0100 0.254 0.0140 0.356 Requirement50% 50% 50% 50% 50% 50% 50% 50% 100%ASTM D 882, Method A 3.2.3 Shrinkage at 200 C (392 F), maximum Nominal Nominal Thickness Thickness Inch Millimeter 0.0005 0.013 0.0010 0.025 0.0015 0.038 0.0020 0.051 0.0030 0.076 0.0050 0.127 0.0075
17、 0.190 0.0100 0.254 0.0140 0.356 9.0% 7.5% 7.0% 7.0% 7.0% 7.0% 7.0% 7.0% 10.0%4.5.13.2.4 High-Temperature Durability Pass 20 of 30 samples 4.5.2 3.2.5 Dielectric Breakdown Voltage, minimum Nominal Nominal Thickness Thickness Inch Millimeter 0.0005 0.013 0.0010 0.025 0.0015 0.038 0.0020 0.051 0.0030
18、0.076 0.0050 0.127 0.0075 0.190 0.0100 0.254 0.0140 0.356 2.0 Kilovolts 4.0 Kilovolts 5.5 Kilovolts 7.7 Kilovolts 10.0 Kilovolts 13.5 Kilovolts 17.5 Kilovolts 19.0 Kilovolts 20.0 Kilovolts 4.5.3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS3
19、612C Page 4 of 83.3 Quality Film, as received by purchaser, shall be uniform in quality and free from foreign materials, visible pits, and imperfections detrimental to usage of the film. 3.4 Tolerances Shall be as follows, determined at 20 to 30 C (68 to 86 F): 3.4.1 Thickness Shall be as specified
20、in Table 2, measured using ASTM D 374, Method C, averaging not less than ten measurements over a sample at least 12 square inches (77 cm2) in area. TABLE 2 - THICKNESS LIMITS FOR SIZES SHOWN NominalThicknessInch NominalThicknessMillimeterActual Thickness Inch Actual Thickness Millimeter0.0005 0.013
21、0.00040 to 0.00060 0.0102 to 0.0152 0.0010 0.025 0.00080 to 0.00105 0.0203 to 0.0267 0.0015 0.038 0.00125 to 0.00160 0.0318 to 0.0406 0.0020 0.051 0.00175 to 0.00220 0.0444 to 0.0559 0.0030 0.076 0.00260 to 0.00330 0.0660 to 0.0838 0.0050 0.127 0.00435 to 0.00545 0.1105 to 0.1384 0.0075 0.190 0.0067
22、0 to 0.00825 0.1702 to 0.2096 0.0100 0.254 0.00890 to 0.01090 0.2261 to 0.2769 0.0140 0.356 0.01260 to 0.01540 0.3200 to 0.3912 3.4.2 Width Shall be as shown in Table 3. TABLE 3A - WIDTH TOLERANCE FOR NOMINAL THICKNESS AND WIDTH RANGES SHOWN, INCH/POUND UNITS Nominal Thickness ToleranceInch Up to 6,
23、 incl ToleranceInch Over 6 to 18, incl ToleranceInch Over 18 Up to 0.0050, incl 1/64 1/32 1/16 Over 0.0050 to 0.0140, incl 1/64 1/32 1/32 TABLE 3B - WIDTH TOLERANCE FOR NOMINAL THICKNESS AND WIDTH RANGES SHOWN, SI UNITS Nominal Thickness ToleranceMillimeterUp to 152, incl ToleranceMillimeterOver 152
24、 to 457, incl ToleranceMillimeterOver 457 Up to 0.127, incl 0.4 0.8 1.6 Over 0.127 to 0.356, incl 0.4 0.8 0.8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS3612C Page 5 of 84. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection Th
25、e vendor of film shall supply all samples for vendors tests and shall be responsible for the performance of all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the film conforms to specified requirements. 4.2 Classificati
26、on of Tests 4.2.1 Acceptance Tests Dielectric breakdown voltage (3.2.5), quality (3.3), and tolerances (3.4) are acceptance tests and shall be performed on each lot. 4.2.2 Preproduction Tests Tests for all technical requirements are preproduction tests and shall be performed prior to or on the initi
27、al shipment of film to a purchaser, when a change in ingredients and/or processing requires reapproval as in 4.4.2, and when purchaser deems confirmatory testing to be required. 4.3 Sampling and Testing Sufficient film shall be taken at random from each lot to perform all required tests. The number
28、of determinations for each requirement shall be as specified in the applicable test procedure or, if not specified therein, not less than three. 4.3.1 A lot shall be all film produced in a single production run from the same batches of raw materials and presented for vendors inspection at one time.
29、A lot shall not exceed 1500 square feet (139 m2).4.4 Approval 4.4.1 Sample film shall be approved by purchaser before film for production use is supplied, unless such approval is waived by purchaser. Results of tests on production film shall be essentially equivalent to those on the approved sample.
30、 4.4.2 Vendor shall use ingredients, manufacturing procedures, processes, and methods of inspection on production film which are essentially the same as those used on the approved sample. If necessary to make any change in ingredients, in type of equipment for processing, or in manufacturing procedu
31、res, vendor shall submit for reapproval a statement of the proposed changes in ingredients and/or processing and, when requested, sample film. Production film made by the revised procedure shall not be shipped prior to receipt of reapproval. 4.5 Test Methods Shall be in accordance with the following
32、: 4.5.1 Shrinkage Suspend freely five specimens, 10 inches (254 mm) long by width of film but not over 10 inches (254 mm) wide, measured to the nearest 0.01 inch (0.25 mm), in an oven maintained at 200 C 2 (392 F 4) for 30 minutes 2. Average 15 measurements for each direction by taking three in each
33、 direction on each specimen at room temperature before and after heating. The three measurements shall be made at the center and midway between the center and the edge along each side, respectively. Bench mark or pinpoint marking may be used for location of measurements. Provided by IHSNot for Resal
34、eNo reproduction or networking permitted without license from IHS-,-,-SAE AMS3612C Page 6 of 84.5.2 High Temperature Durability Suspend 30 specimens, 5 inches (127 mm) long by width of film but not over 1 inch (25 mm) wide, in an oven maintained at 125 C 2 (257 F 4) for 30 minutes 2. Samples shall s
35、upport, at one end, a weight of 200 grams per 0.0010 inch (0.025 mm) thickness per 1.00 inch (25 mm) width. Raise the temperature to 220 C 2 (428 F 4) and maintain for 30 minutes 2. Cool to room temperature under load. Fold the sample 180 degrees in the machine direction. Crease under moderate finge
36、r pressure and unfold. Repeat test with fold and crease in the transverse direction. Film shall not crack. Film samples shall be taken from one mill roll lot number and shall be taken at random across the roll. 4.5.3 Dielectric Breakdown Voltage Shall be determined in accordance with ASTM D 149, sho
37、rt time test in air using 2 inch (51 mm) diameter electrodes except that 1/4 inch (6.4 mm) diameter electrodes may be used when narrow film is supplied. In tests of 40 specimens, there shall be not more than three failures in film 0.0030 inch (0.076 mm) and under in thickness and not more than four
38、failures in thicker film. 4.6 Reports The vendor of film shall furnish with each shipment a report showing the results of tests to determine conformance to the acceptance test requirements and stating that the film conforms to the other technical requirements. This report shall include the purchase
39、order number, lot number, AMS3612C, vendors material designation, size, and quantity. 4.7 Resampling and Retesting If any specimen used in the above tests fails to meet the specified requirements, disposition of the film may be based on the results of testing three additional specimens for each orig
40、inal nonconforming specimen. Failure of any retest specimen to meet the specified requirements shall be cause for rejection of the film represented. Results of all tests shall be reported. 5. PREPARATION FOR DELIVERY 5.1 Packaging 5.1.1 A lot of film may be packaged in small quantities and delivered
41、 under the basic lot approval provided lot identification is maintained. 5.1.2 Packaging shall be accomplished to ensure that the film, during shipment and storage, will not be permanently distorted and will be protected against damage from exposure to weather or any other normal hazard. Film shall
42、be wound on cores meeting the following requirements: 5.1.2.1 Cores Shall have sufficient strength to prevent collapsing during handling and shall have a 3-inch (76-mm) or 6-inch (152-mm) ID, as ordered. 5.1.3 Rolls The OD of the slit roll and core ID shall be as shown in Table 4. TABLE 4 - CORE ID
43、AND OD OF ROLLS Core ID InchesCore ID MillimetersOD of Roll InchesOD of RollMillimeters3 76 9-1/2 1/4 241 6.4 6 152 11 1/4 279 6.4 6 152 14 1/4 356 6.4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS3612C Page 7 of 85.1.3.1 Cores shall be flu
44、sh with the roll face, or core width shall be not more than 1/8 inch (3.2 mm) greater than film width. The outside and starting ends shall be fastened to prevent unwinding. Roll sides shall be smooth and even, and no portion of the film shall extend more than 1/16 inch (1.6 mm) from a straight edge
45、laid across the diameter of the roll. 5.1.4 Splices Shall be located not less than 100 feet (30 m) from beginning or end of a roll and not less than 100 feet (30 m) apart within a roll. There shall be no more than two splices per 91/2 or 11 inch (241 or 279 mm) OD roll, or six splices per 14 inch (3
46、56 mm) OD roll. 5.1.4.1 Configuration of Splices 5.1.4.1.1 For Thicknesses 0.0020 Inch (0.051 mm) and Under Sandwich-type splice made with two-side-coated, 1-inch (25-mm) wide, colored pressure-sensitive polyester film tape. Tail of splice on bottom of web shall be trailing as film is unwound from t
47、he top of the roll. 5.1.4.1.2 For Thicknesses Over 0.0020 to 0.0140 Inch (0.051 to 0.356 mm), Inclusive Butt-type splice made with one-side-coated, 2 inch (51 mm) wide, colored pressure-sensitive polyester film tape applied to both sides of the splice. 5.1.5 Packages of film shall be prepared for sh
48、ipment in accordance with commercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the film to ensure carrier acceptance and safe delivery.5.2 Identification Each package of film shall be permanently and legibly marked with not less than the following information: POLYESTER FILM, ELECTRICAL GRADE, GENERAL PURPOSE AMS3612CSIZE (Thickness width footage) NUMBER OF ROLLSCORE IDROLL ODPURCHASE ORDER N
