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 revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2013 SAE International All rights reserved. No part of this p
3、ublication may 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: +1 724-776-497
4、0 (outside USA) 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/AMS3217/1B AEROSPACE MATERIAL SPECIFICATION AMS3217/1 REV. B Issued 1983-07 Revis
5、ed 1998-06 Reaffirmed 2013-09 Superseding AMS3217/1A Test Slabs, Acrylonitrile Butadiene (NBR-H) Medium-High Acrylonitrile, 65 - 75 RATIONALE AMS3217/1B has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE: 1.1 Form: This specification covers a standard acrylonitrile butadien
6、e (NBR-H) rubber stock with medium-high acrylonitrile content in the form of molded test slabs. 1.2 Application: See AMS 3217. 2. APPLICABLE DOCUMENTS: See AMS 3217. 3. TECHNICAL REQUIREMENTS: 3.1 Basic Specifications: The complete requirements for test slabs described herein and their procurement s
7、hall consist of this document and the latest issue of the basic specification AMS 3217. 3.2 Material: Shall be a high-acrylonitrile butadiene (NBR-H) compounded to the formulation shown in Table 1. SAE INTERNATIONAL AMS3217/1B Page 2 of 3 TABLE 1 FORMULATION Ingredients NIST SRM Number Parts Nipol 1
8、002 or equivalent1- 100.0 (See 3.2.1) Zinc Oxide 370 5.0 (See 3.2.2) Stearic Acid 372 1.5 (See 3.2.2) Sulfur 371 1.5 (See 3.2.2) Sid Richardson N550 Carbon Black or equivalent1(See 3.2.3) - 45.0 (See 3.2.1) Altax or equivalent1- 1.5 (See 3.2.2) Press Cure: 20 minutes 0.5 at 155 C 3 (311 F 5). 1Equiv
9、alent ingredients must be approved by SAE Committee CE. 3.2.1 Weigh parts to the nearest 0.1 gram. 3.2.2 Weigh parts to the nearest 0.02 gram. 3.2.3 ASTM D 1765 designation. 3.3 Processing: After the elastomer has banded on the rubber mill, the other ingredients shall be added in the order listed in
10、 Table 1. 3.3.1 The stock shall not be allowed to become hotter than can be handled with the bare hands; it is recommended that the stock be removed from the mill and cooled to room temperature before incorporating the final ingredient. 3.3.2 After all ingredients have been incorporated and the stoc
11、k has been thoroughly milled, the stock shall be passed 10 times through a tight mill. 3.3.3 Suitable preforms shall be cut from the freshly milled stock and molded into test slabs as specified in ASTM D 3182, Figure 1. SAE INTERNATIONAL AMS3217/1B Page 3 of 3 3.4 Properties: Shall be as shown in Ta
12、ble 2. TABLE 2 PROPERTIES Paragraph Property Requirement Test Method 3.4.1 Hardness, Durometer “A” or equivalent 70 5 3.4.2 Tensile Strength, minimum 3000 psi (20.7 MPa) 3.4.3 Elongation, minimum 400% 3.4.4 Specific Gravity 1.18 0.01 ASTM D 471 3.4.5 Synthetic Lubricant Immersion: AMS 3021 70 C 3 (1
13、58 F 5) 3.4.5.1 Volume Change +16 to +22% 70 hours 0.5 4. QUALITY ASSURANCE PROVISIONS: See AMS 3217. 5. PREPARATION FOR DELIVERY: See AMS 3217. 6. ACKNOWLEDGMENT: See AMS 3217. 7. REJECTIONS: See AMS 3217. 8. NOTES: See AMS 3217. 8.1 The change bar ( l ) located in the left margin is for the conven
14、ience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this specification. An (R) symbol to the left of the document title indicates a complete revision of the specification. PREPARED UNDER THE JURISDICTION OF AMS COMMITTEE “CE”
