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 2017 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:/standards.sae.org/AMS2451/13A AEROSPACE MATERIAL SPECIFICATION AMS2451 /13 REV. A Issued 2002-12 Revised 2017-11
5、Superseding AMS2451/13 Plating, Brush, Silver RATIONALE AMS2451/13A is the result of a Five-Year Review and update of this specification with a change to paragraph 3.2.2 hydrogen embrittlement. 1. SCOPE 1.1 Purpose This specification covers the engineering requirements and process for brush plating
6、of silver by electrodeposition. It shall be used, in conjunction with AMS2451, for silver deposits. 1.2 Application This process has been used typically to provide low electrical contact resistance, prevent galling or seizing of surfaces of parts, and corrosion protection, but usage is not limited t
7、o such applications. 1.3 Safety - Hazardous Materials Shall be in accordance with AMS2451. 2. APPLICABLE DOCUMENTS In addition to those listed in AMS2451, 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 herei
8、n. 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 published issue of that document shall apply. 2.1 SAE Publications Available from SA
9、E International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org. AMS2412 Plating, Silver, Copper Strike, Low Bake AMS2451 Plating, Brush, General Requirements SAE INTERNATIONAL AMS2451/13A Page 2 of 2 3. TECH
10、NICAL REQUIREMENTS Shall be in accordance with AMS2451 and as follows. 3.1 Procedure 3.1.1 Silver shall be electrodeposited from a silver brush plating solution in accordance with processing instructions from the solution manufacturer. 3.1.2 The equipment, materials, and procedures used to process s
11、pecimens and parts shall conform to a schedule of control factors (see AMS2451) and to the recommendations of the manufacturer of the selective plating equipment and processing materials. 3.1.3 A preliminary strike or bonding layer of nickel and copper, palladium or gold may be used. 3.2 Properties
12、3.2.1 Thickness Where silver flash is specified, plate thickness shall be approximately 0.0001 inch (2.5 m). 3.2.2 Hydrogen Embrittlement Shall be in accordance with AMS 2451. 4. QUALITY ASSURANCE PROVISIONS: Shall be in accordance with AMS2451. 5. PREPARATION FOR DELIVERY Shall be in accordance wit
13、h AMS2451. 6. ACKNOWLEDGEMENT Shall be in accordance with AMS2451. 7. REJECTIONS Shall be in accordance with AMS2451. 8. NOTES See AMS2451 and the following. 8.1 Revision Indicator A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisi
14、ons, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only. 8.2 Plating meeting the requirements of this specification will exhibit equivalent properties to plating produced in accordance with AMS2412. PREPARED BY AMS COMMITTEE “B”
