Conversion coating procedure repairs scratched and abraded cadmium-plated aluminum cable connectors while they are in assembly

Simmons, J. R.

English

NASA Technical Reports Server

January 1967	 Brief 67-10014 
NASA TECH BRIEF 
NASA Tech Briefs are issued to summarize specific innovations derived from the U.S. space program, 
to encourage their commercial application. Copies are available to the public at 15 cents each 
from the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151. 
Abraded Cadmium-Plated Cable Connectors Repaired by Conversion Coating 
The problem: 
To develop a repair procedure for scratched and 
abraded cadmium-plated aluminum cable connectors 
while they are in assembly. Certain Saturn-IC alumi-
num cable connectors are cadmium plated and then 
passivated with a chromate conversion coating. The 
conversion coating is easily damaged during assembly 
operations and these parts must be replated or re-
jected. Replacing the connector is time consuming 
and costly. Also, while assembled, the connectors 
cannot be totally immersed as in the original preas-
sembly process. 
The solution: 
A detailed procedure for the conversion coating 
repair of cadmium-plated cable connectors. Details 
for the preparation and maintenance of the passivating
solutions, materials needed, application, and precau-
tions are obtainable from: 
Technology Utilization Officer 
Marshall Space Flight Center 
Huntsville, Alabama 35812 
Reference: B67-10014 
Patent status: 
Inquiries about obtaining rights for the commercial 
use of this invention may be made to NASA, Code 
GP, Washington, D.C. 20546. 
Source: James R. Simmons
of the Boeing Co.
under contract to
Marshall Space Flight Center 
(M-FS-1424) 
Category 03 
This document was prepared under the sponsorship of the National	 Government assumes any liability resulting from the use of the 
Aeronautics and Space Administration. Neither the United States 	 information contained in this document, or warrants that such use 
Government nor any person acting on behalf of the United States 	 will be free from privately owned rights.
https://ntrs.nasa.gov/search.jsp?R=19670000014 2020-03-11T20:20:33+00:00Z


Abraded cadmium-plated cable connectors repaired by conversion coating

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