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A Rapid Screening Test to Assess Relative Corrosion Performance of Automotive Condensers
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 28, 2017 by SAE International in United States
This content contains downloadable datasetsAnnotation ability available
A simple and rapid immersion type corrosion test has been successfully developed that discriminates corrosion performance in condensers from various suppliers and with differing manufacturing processes. The goal is to develop a test specification that will be included in the Ford corrosion specification for condensers so that condensers received from various suppliers may be evaluated rapidly for their relative corrosion performance to each other. Sections from condensers from Supplier A (tube is silfluxed), Supplier B (tube is zinc arc sprayed), and Supplier C (bare folded tube with no zinc for corrosion protection) were tested in 2% v/v hydrochloric acid for 16, 24 and 48 hours. The results showed that in terms of corrosion performance, zinc arc sprayed Supplier B condenser performed the worst while Supplier C condenser performed the best with Supplier A in between. It was also observed that the fins, and fin-to-tube joints were first to corrode followed by the tube in all cases. This observation was consistent with a silfluxed field returned unit that was examined on a limited basis. This has the potential to compromise the thermal performance and structural integrity of the condenser before it starts leaking. The results prove the utility of a simple test to discern corrosion performance of condensers in a relatively quick time frame.
|Aerospace Material Specification||Rubber: Butadiene-Acrylonitrile (NBR) 65 to 75 Hardness, For Elastomeric Seals in Aircraft Engine Oil Systems|
|Aerospace Material Specification||Fabric, Polybenzimidazole (PBI) Polyamide Fiberglass Polytetrafluoroethylene (PTFE) Impregnated, Sintered|
|Aerospace Material Specification||Sheet, Acrylonitrile Butadiene (NBR) Rubber and Non-Asbestos Fiber Fuel and Oil Resistant|
CitationRungta, R. and Pandit, N., "A Rapid Screening Test to Assess Relative Corrosion Performance of Automotive Condensers," SAE Technical Paper 2017-01-0174, 2017, https://doi.org/10.4271/2017-01-0174.
Data Sets - Support Documents
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- Melander M., and Woods R., , “A Corrosion Study of Field Retrieved, CAB Brazed Automobile Condensers”, in Vehicle Thermal Management Systems, VTMS 8, Nottingham, United Kingdom, 2007, pp. 145–154.
- Ford Internal Report.
- Rungta R., , Private Communications, 2016.