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 2006 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: 724-776-4970 (outside USA)
4、Fax: 724-776-0790 Email: custsvcsae.org SAE WEB ADDRESS: http:/www.sae.org AMS 2451/8A AEROSPACE MATERIAL SPECIFICATION Issued AUG 2000 Revised MAY 2006 Superseding AMS 2451/8 Plating, Brush, Non-Cyanide Silver General Purpose RATIONALE AMS 2451/8A is a Five Year Review and update of this specificat
5、ion. 1. SCOPE 1.1 Purpose This specification covers the requirements for brush plating of noncyanide silver by electrodeposition. 1.2 Application This process has been used typically to lower electrical contact resistance, prevent galling or seizing of surfaces of parts to improve corrosion resistan
6、ce of steel parts and to repair silver deposits but usage is not limited to such applications. 1.3 Safety - Hazardous Materials See AMS 2451. 2. APPLICABLE DOCUMENTS See AMS 2451. 3. TECHNICAL REQUIREMENTS See AMS 2451. 3.1 Procedure 3.1.1 Silver shall be electrodeposited from a noncyanide silver br
7、ush plating solution in accordance with processing instructions from the solution manufacturer. 3.1.2 A preliminary strike or bonding layer of nickel and copper, palladium or gold may be used. 3.2 Properties 3.2.1 Thickness Where silver flash is specified, plate thickness shall be approximately 0.00
8、01 inch (2.5 m). Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS 2451/8A - 2 - 4. QUALITY ASSURANCE PROVISIONS See AMS 2451. 5. PREPARATION FOR DELIVERY See AMS 2451. 6. ACKNOWLEDGMENT See AM
9、S 2451. 7. REJECTIONS See AMS 2451. 8. NOTES See AMS 2451. 8.1 Plating meeting the requirements of this specification will exhibit equivalent properties to plating produced in accordance with QQ-S-365 and AMS 2412. 8.2 Key Words Brush plating, galling prevention, anti-seizing, worn parts, mismachined parts, repair, noncyanide, low contact resistance PREPARED BY AMS COMMITTEE “B” Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
