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 there
2、from, 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 2009 SAE International All rights reserved. No part of this publication m
3、ay 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 U
4、SA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AMS3690C AEROSPACE MATERIAL SPECIFICATION AMS3690 REV. C Issued 1960-01 Reaffirmed 2000-12 Re
5、vised 2009-07 Superseding AMS3690B Adhesive Compound, Epoxy Room Temperature Curing RATIONALE AMS3690C results from a Five Year Review and update of this specification. 1. SCOPE 1.1 Form This specification covers a two-component compound, an epoxy resin base and a hardener, in the form of a paste. 1
6、.2 Application This adhesive compound has been used typically for nonstructural bonding of metallic alloys and thermosetting plastics to themselves and to each other; it is intended primarily as an adhesive for electrical components operating at not higher than 185 F (85 C), but usage is not limited
7、 to such applications. 1.3 Safety - Hazardous Materials While the materials, methods, applications, and processes described or referenced 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 sol
8、e responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and to take necessary precautionary 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
9、 purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced document has been cancelled and no superseding document has been specified, the last publ
10、ished issue of that document shall apply. 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. AMS2825 Material Safety Data Sheets AMS5044 Steel, Sheet and Strip
11、, 0.15 Carbon, Maximum, Half Hard Temper Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS3690C Page 2 of 6 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O.
12、Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM D 471 Rubber Property Effect of Liquids ASTM D 1002 Strength Properties of Adhesives in Shear by Tension Loading (Metal-to-Metal) 2.3 U.S. Government Publications Available from the Document Automation and Production S
13、ervice (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 Military Packaging, Standard Practice for 3. TECHNICAL REQUIREMENTS 3.1 Material Shall consist of two components: an epoxy resin base and a hardener
14、. Fillers and modifiers may be included in either component. 3.1.1 Curing When mixed and cured at room temperature in accordance with manufacturers recommendations, formulation shall polymerize to a uniform adhesive exhibiting 90% of its ultimate strength within 24 hours. It shall reach its ultimate
15、 adhesive strength when cured at 75 F 5 (24 C 3 ) for not more than seven days or at 149 F 5 (65 C 3) for not more than four hours. 3.1.2 Shelf Life Resin base and hardener, stored in unopened containers at not higher than 90 F (32 C) for up to one year, shall meet the requirements of 3.2 after bein
16、g mixed and cured as in 3.1.1. 3.1.3 Pot Life Adhesive in 100 gram batches, mixed in accordance with manufacturers recommendations, shall have a useful pot life of not less than 40 minutes when maintained at not higher than 75 F (24 C). 3.2 Properties The product, cured in accordance with manufactur
17、ers recommendations, shall conform to the requirements shown in Table 1, 3.2.3, and 3.2.4; tests shall be performed on the product supplied and in accordance with specified methods, insofar as practicable. Reported values shall be the average of five or more specimens. Copyright SAE International Pr
18、ovided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS3690C Page 3 of 6 TABLE 1 - PROPERTIES Paragraph Property Requirement Test Method 3.2.1 3.2.1.1 3.2.1.2 3.2.1.3 3.2.1.4 3.2.2 3.2.2.1 3.2.2.2 Tensile Shear at 75 F 2 (24 C 1)
19、, minimum Cured 24 hours 0.5 Ultimate cure After thermal cycling After thermal aging Tensile Shear at Temperature Extremes, minimum At -67 F 2 (-55 C 1) At 185 F 5 (85 C 3) 1800 psi (12.4 MPa) 2000 psi (13.8 MPa) 1500 psi (10.3 MPa) 1800 psi (12.4 MPa) 1500 psi (10.3 MPa) 1800 psi (12.4 MPa) 4.5.1 4
20、.5.2 4.5.3 4.5.1 1 hour 0.5 3.2.3 Fluid Resistance The adhesive, tested in accordance with ASTM D 471 using Service Fluid No. 1, Oil No. 3, and Reference Fuel B, shall not show a weight change greater than 2.0%, determined in accordance with 4.5.4. 3.3 Quality The product, as received by purchaser,
21、shall be uniform in quality and condition, and free from foreign materials and from imperfections detrimental to usage of the product. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of the product shall supply all samples for vendors tests and shall be responsible for t
22、he performance of all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the product conforms to specified requirements . 4.2 Classification of Tests 4.2.1 Acceptance Tests Tensile shear cured 24 hours at 75 F 2 (24 C 1) (3.
23、2.1.1) and quality (3.3) are acceptance tests and shall be performed on each lot. 4.2.2 Preproduction Tests All technical requirements, except shelf life (3.1.2), are preproduction tests and shall be performed prior to or on the initial shipment of the product to a purchaser, when a change in ingred
24、ients and/or processing requires reapproval as in 4.4.2, and when purchaser deems confirmatory testing to be required. 4.3 Sampling and Testing 4.3.1 For Acceptance Tests Sufficient product shall be taken at random from each lot to perform all required tests. The number of determinations for each re
25、quirement shall be as specified in the applicable test procedure or, if not specified therein, not less than five. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS3690C Page 4 of 6 4.3.1.1 A l
26、ot shall be all adhesive produced in a single production run from the same batches of raw materials and presented for vendors inspection at one time. An inspection lot shall not exceed 500 pounds (227 kg). 4.3.1.2 When a statistical sampling plan has been agreed upon by purchaser and vendor, samplin
27、g shall be in accordance with such plan in lieu of sampling as in 4.3.1 and the report of 4.6 shall state that such plan was used. 4.3.2 For Preproduction Tests As agreed upon by purchaser and vendor. 4.4 Approval 4.4.1 Sample adhesive shall be approved by purchaser before adhesive for production us
28、e is supplied, unless such approval be waived by purchaser. Results of tests on production adhesive shall be essentially equivalent to those on the approved sample. 4.4.2 Vendor shall use ingredients, manufacturing procedures, processes, and methods of inspection on production adhesive which are ess
29、entially the same as those used on the approved sample adhesive. If necessary to make any change in ingredients, in type of equipment for processing, or in manufacturing procedures, vendor shall submit for reapproval a statement of the proposed changes in ingredients and/or processing and, when requ
30、ested, sample adhesive. Production adhesive made by the revised procedure shall not be shipped prior to receipt of reapproval. 4.5 Test Methods 4.5.1 Tensile Shear Shall be determined in accordance with ASTM D 1002 with the following modifications. Individual test pieces shall be made of AMS5044 ste
31、el, or equivalent, nominally 1/8 x 1 x 5 inches (3.2 x 25 x 127 mm). Tensile holding fixture shall allow sufficient offset to account for the metal thickness, and through-pin holding arrangement shall be allowable when 1/8 inch (3.2 mm) thick test pieces are used. The test piece width shall be 1 inc
32、h 0.1 (25 mm 3) and the overlap area approximately 0.5 square inch (323 mm2). Bonding fixtures used shall give identical pressure on the adhesive joint from batch to batch. Bonding surface shall be freshly sandblasted to obtain a uniformly roughened surface and shall be thoroughly washed with a suit
33、able solvent. 4.5.2 Thermal Cycling Samples shall be subjected to 10 thermal cycles in air as follows and tested at room temperature. One cycle shall consist of 30 minutes 5 at 67 F 2 (55 C 1), 30 minutes 5 at 75 F 2 (24 C 1), 30 minutes 5 at 158 F 2 (70 C 1), and 30 minutes 5 at 75 F 2 (24 C 1). Th
34、e cycle may be extended during any 75 F (24 C) conditioning period. 4.5.3 Thermal Aging Samples shall be maintained at 185 F 2 (85 C 1) in a circulating-air oven for 200 hours 12, removed from the oven, and allowed to stabilize at test temperature for not less than two hours before testing. Copyrigh
35、t SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS3690C Page 5 of 6 4.5.4 Fluid Resistance Seventeen samples shall be prepared by dip, spray, or brush coating both sides and all edges of one half of a t
36、ared, standard glass microscope slide with a uniform, bubble-free film of adhesive 0.005 to 0.020 inch (0.13 to 0.51 mm) thick. Thin sections on corners are acceptable. Samples shall be cured according to manufacturers recommendations, weighed to 0.0001 gram, and the adhesive film weight calculated.
37、 Five samples shall be subjected to each test fluid for 96 hours 1 at 212 F 2 (100 C 1). Two samples shall be aged for 96 hours 1 at 212 F 2 (100 C 1) in a circulating-air oven. Thermal aged samples shall be cooled, allowed to stabilize at 75 F 2 (24 C 1) in a desiccator, and weighed. Samples subjec
38、ted to Ref. Fuel B shall be cooled to 75 F 2 (24 C 1) in the fuel, removed from the fuel, wiped dry, and weighed immediately. Samples subjected to Service Fluid No. 1 and Oil No. 3 shall be cooled to 75 F 2 (24 C 1), washed free of excess material with a suitable solvent, allowed to stabilize to con
39、stant weight, and weighed immediately. The initial and final average weights of samples exposed to each fluid and to hot air shall be determined and the difference expressed as percent weight change. Results shall be recorded as the difference between the percent weight change of the air aged sample
40、s and the fluid aged samples. 4.6 Reports The vendor of adhesive shall furnish with each shipment a report showing the results of tests to determine conformance to the acceptance test requirements and stating that the adhesive conforms to the other technical requirements. This report shall include t
41、he purchase order number, lot number, AMS3690C, vendors material designation, and quantity. 4.6.1 A material safety data sheet conforming to AMS2825, or equivalent, shall be supplied to each purchaser prior to, or concurrent with, the report of preproduction test results or, if preproduction testing
42、 be waived by purchaser, concurrent with the first shipment of adhesive for production use. Each request for modification of adhesive formulation shall be accompanied by a revised data sheet for the proposed formulation. 4.7 Resampling and Retesting If any specimen used in the above tests fails to m
43、eet the specified requirements, disposition of the adhesive may be based on the results of testing three additional specimens for each original nonconforming specimen. Failure of any retest specimen to meet the specified requirements shall be cause for rejection of the adhesive represented. Results
44、of all tests shall be reported. 5. PREPARATION FOR DELIVERY 5.1 Packaging and Identification 5.1.1 The product shall be supplied in kit form with separate containers of base resin formulation and of hardening agent. Type and size of containers shall be as agreed upon by purchaser and vendor. 5.1.1.1
45、 A lot of adhesive may be packaged in small quantities and delivered under the basic lot approval provided lot identification is maintained. 5.1.2 Each container shall be legibly identified with not less than the following information applied to durable labels, using characters which will not be obl
46、iterated by normal handling. ADHESIVE COMPOUND, EPOXY, Room Temperature Curing AMS3690C MANUFACTURERS IDENTIFICATION DATE OF MANUFACTURE LOT NUMBER QUANTITY SHELF LIFE DIRECTIONS FOR MIXING APPROPRIATE WARNINGS OR PRECAUTIONARY NOTICES Copyright SAE International Provided by IHS under license with S
47、AENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS3690C Page 6 of 6 5.1.3 Individual packages of adhesive shall be marked on the exterior with not less than the information specified in 5.1.2, with the addition of the applicable purchase order number, so tha
48、t the markings will not smear or be obliterated during normal handling and use. 5.1.4 Containers of adhesive shall be prepared for shipment in accordance with commercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the adhesive to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor shall mention this specification number and its revision letter in all quotation
