Corrosion on electronic chasses has been traced to salts entrapped in the chasses by improper processing. The examples cited are corrosion of cadmium plated steel racks, chromate conversion salts on aluminum chasses and dip braze salts entrapped in aluminum chasses. The units were repaired using the basic procedures of neutralization and removal of salts and coating the bare metal with a corrosion barrier to prevent further corrosion.

The cases cited are documented by photographs and a repair procedure is given for each of these examples. The repair procedures are those that have been used and tested with satisfactory results. Recommendations of design, processes and quality checks are given to prevent future problems such as these.

Subject
Corrosion prevention, Water, Materials, Plating, Manufacturing, Salts, Aluminum, Repair, Steel, Rust, Engineers, Immersion, Corrosion protection
© 1984 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication 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 AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1984
Association for Materials Protection and Performance (AMPP)
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