SAE AMS 2414G-2005 Plating Lead《镀铅》.pdf
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1、_ SAE Technical Standards Board Rules providHWKDW7KLVUHSRUWLVSXEOLVKHGE6$(WRDGYDQFHWKHVWDWHRIWHFKQ LFDODQGHQJLQHHULQJVFLHQFHV7KHXVHRIWKLVUHSRUWL s entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising thereIURPLVWKHVROHUHVSRQVLELO
2、LWRIWKHXVHU 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 2016 SAE International All rights reserved. No part of this publication may be reproduced, store
3、d 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 USA) Fax: 724-776-0790 E
4、mail: 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/AMS2414G AEROSPACE MATERIAL SPECIFICATION AMS2414 REV. G Issued 1948-05 Revised 2005-09 Reaffirmed 2016-02 Supersedi
5、ng AMS2414F Plating, Lead RATIONALE AMS2414G has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE: 1.1 Purpose: This specification covers the requirements for electrodeposed lead on metal parts. 1.2 Application: This process has been used typically to prevent galling of metal
6、 parts and to improve the performance of bearings, but usage is not limited 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 d
7、oes 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 precautionary measures to ensure the health and safety of all personnel involved. 2. APPLICABLE
8、 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 document unless a specific document issue is specified. When the referenced document has
9、 been cancelled and no superseding document has been specified, the last published issue of that document shall apply. 2.1 ASTM Publications: Available from ASTM, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959 or www.astm.org. ASTM B 253 Preparation of Aluminum Alloys for Ele
10、ctroplating ASTM B 487 Measurement of Metal and Oxide Coating Thicknesses by Microscopical Examination of a Cross Section 2.1 (Continued): ASTM B 499 Measurement of Coating Thicknesses by the Magnetic Method: Nonmagnetic Coatings on Magnetic Basis Metals ASTM B 504 Measurement of Thickness of Metall
11、ic Coatings by the Coulometric Method ASTM B 567 Measurement of Coating Thickness by the Beta Backscatter Method ASTM B 568 Measurement of Coating Thickness by X-Ray Spectrometry ASTM B 571 Adhesion of Metallic Coating ASTM B 748 Measurement of Thickness of Metallic Coatings by Measurement of Cross
12、Section with a Scanning Electron Microscope 3. TECHNICAL REQUIREMENTS: 3.1 Preparation: 3.1.1 Steel parts having hardness of 40 HRC or higher and which have been ground after heat treatment shall be cleaned to remove surface contamination and stress relieved before preparation for plating. Temperatu
13、res to which parts are heated shall be such that maximum stress relief is obtained without reducing hardness of parts below drawing limits, but, unless otherwise specified, parts with a hardness of 55 HRC or higher shall be stress relieved at not less than 275 oF (135 C) for not less than five hours
14、 and other parts shall be stress relieved at not less than 375 F (191 C) for not less than four hours. 3.1.2 The plating shall be applied over a surface free from water breaks. The cleaning procedure shall not produce pitting, embrittlement, or intergranular attack of the basis metal and shall prese
15、rve dimensional requirements. 3.1.2.1 For parts 40 HRC and over, contact time with surface activation acids such as hydrochloric, hydrofluoric, and sulfuric acids shall be minimized so as not to produce hydrogen embrittlement. 3.1.3 Except for barrel plating, electrical contact points shall be as fo
16、llows. For parts which are to be plated all over, locations shall be acceptable to purchaser. For parts which are not to be plated all over, locations shall be in areas on which plating is not required. 3.1.4 Aluminum or aluminum alloys shall be zincate treated in accordance with ASTM B 253 or other
17、 method acceptable to purchaser, prior to plating. 3.2 Procedure: 3.2.1 Parts shall be plated by electrodeposition of lead from a suitable lead plating solution onto a properly prepared surface. The plate shall be applied directly on the basis metal except that, in the case of parts made of corrosio
18、n-resistant steels and high speed steels, a suitable strike plate may be used for bonding purposes. SAE INTERNATIONAL AMS2414G Page 2 of 7_3.3 Properties: The deposited lead shall conform to the following requirements: 3.3.1 Thickness of lead plating shall be 0.0005 to 0.0007 inch (13 to 18 m), dete
19、rmined on representative parts or test panels in accordance with ASTM B 487, ASTM B 499, ASTM B 504, ASTM B 567, ASTM B 568, ASTM B 748, or by other method acceptable to purchaser. 3.3.1.1 Plate thickness may be specified by AMS 2414 and a suffix number normally designating the minimum thickness in
20、ten-thousandths of an inch (m); the maximum plate thickness shall be 0.0002 inch (5 m) greater than the minimum. Thus, AMS 2414-2 designates a thickness of 0.0002 to 0.0004 inch (5 to 10 m) and AMS 2414-6 designates a thickness of 0.0006 to 0.0008 inch (15 to 20 m). 3.3.1.2 Where “lead flash” is spe
21、cified, the thickness of lead deposit shall be approximately 0.0001 inch (2.5 m). 3.3.1.3 The plate shall be substantially uniform in thickness on significant surfaces except that slight build-up on exterior corners or edges is acceptable provided finished drawing dimensions are met. 3.3.1.4 All sur
22、faces of the part, except those which cannot be touched by a sphere 0.75 inch (19.0 mm) in diameter, shall be plated to the specified thickness. Unless otherwise specified, surfaces such as holes, recesses, threads and other areas where a controlled deposit cannot be obtained under normal plating co
23、nditions, may have thickness less than specified limits, provided they show visual coverage. Coverage cannot be expected, however, below one diameter depth in holes unless auxiliary anodes are used. 3.3.2 Adhesion shall meet the requirements of ASTM B 571 or a method acceptable to purchaser. 3.4 Qua
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- SAEAMS2414G2005PLATINGLEAD 镀铅 PDF
