NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Precision aqueous cleaner for RSRMChlorinated solvents such as freon and 1,1,1 trichloroethane (TCA) are both environmental and physiological hazards which deplete stratospheric ozone. These chemicals are the primary degreasing solvents (vapor, vat, and hand operations) in redesigned solid rocket motor (RSRM) manufacturing. Due to the mandates of the Clean Air Act, substitutes must be identified for RSRM cleaning processes. The initial phase of laboratory testing identified candidate cleaners to replace 1,1,1 trichloroethane for cleaning, potentially reducing annual TCA consumption by 800,000 lbs. This paper describes RSRM testing which elucidated the effects of several interdependent variable including: definition of surface cleanliness criteria, validation of cleaning power of new candidates, the effect of immersion cleaning versus spray cleaning on cleaning, any effect of the cleaner and/or inhibitor upon bondline aging, and compatibility of the cleaners with nonmetallic tooling and processing materials.
Document ID
19950009911
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hutchens, D. E.
(Thiokol Chemical Corp. Huntsville, AL., United States)
Keen, J. M.
(Thiokol Chemical Corp. Huntsville, AL., United States)
Doan, P. A.
(Thiokol Chemical Corp. Huntsville, AL., United States)
Deweese, C. D.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Burns, H. D., Jr.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Vickers, J. H.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
September 6, 2013
Publication Date
November 1, 1993
Publication Information
Publication: JHU, The 1993 JANNAF Propulsion Meeting, Volume 2
Subject Category
Inorganic And Physical Chemistry
Accession Number
95N16326
Funding Number(s)
CONTRACT_GRANT: NAS8-38100
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available