This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
External Corrosion Resistance of
Cu
proBraze
®
Radiators
Technical Paper
2001-01-1718
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
New technology for the manufacturing of copper/brass heat exchangers has been developed and the first automotive radiators are already in operation in vehicles. This new technology is called CuproBraze®. One of the essential questions raised is the external corrosion resistance with reference to the present soldered copper/brass radiators and to the brazed aluminium radiators.
Based on the results from electrochemical measurements and from four different types of accelerated corrosion tests, the external corrosion resistance of the CuproBraze® radiators is clearly better than that of the soldered copper/brass radiators and competitive with the brazed aluminum radiators, especially as regards marine atmosphere. Due to the relatively high strength of the CuproBraze® heat exchangers, down gauging of fins and tubes in some applications is attractive. High performance coatings can ensure long lifetime from corrosion point of view, even for thin gauge heat exchangers.
Recommended Content
Technical Paper | Interactions Between the Materials in the Tube-Fin-Joints in Brazed Copper-Brass Heat Exchangers |
Technical Paper | OCP - Materials |
Technical Paper | CuproBraze Manufacturing - Plant Design - Lock Seam Tubes |
Authors
Citation
Ainali, M., Korpinen, T., and Forsén, O., "External Corrosion Resistance ofAlso In
References
- Sundberg R Holm R Hassel L. Corrosion and Corrosion Protection of Automotive Heat Exchangers -Comparison between Copper/Brass and Aluminum SAE Technical Paper Series 870181 . SAE Annual Conference 1987
- Mattsson E Corrosion Resistance of Automotive Copper/Brass Radiator Fins - A Review New York, NY, USA 1993
- Falkenö A Ainali M SAE World Congress Detroit, MI March 5-8 2001
- Mattsson E Accelerated Corrosion Testing of Automotive Radiators of Copper Materials - A Critical Survey SAE Technical Papers Series 920181 1992
- Ainali M Beal R.E Sundberg R Wickman L Corrosion of Copper/Brass Radiators - Corrosion Mechanisms - Prevention Actions SAE Technical Papers Series 920180 1992
- Ainali M Wickman L Symniotis E Blom R Bimetallic Corrosion in Road Environment 12th Scandinavian Corrosion Congress & Eurocorr '92 Espoo, Finland 1992
- Räihä, M The Electrochemical Properties of a Brazed Cu/Brass Radiator Helsinki Univ. of Technology 1999
- Aromaa J Forsén O Ainali M Räihä M The electrochemical testing of a brazed Cu/brass radiator Electrochemical Methods in Corrosion Research”- Conference Budapest, Hungary 28-31st May 2000
- Korpinen T Electrochemical Tests with Copper/Brass Tube Materials in Coolants SAE-VTMS Nashville, TN May 14-17 2001
- Schreir L.L et al. Corrosion 1 Butterworth-Heineman Ltd. Great Britain 1995
- Franey J Degradation of Copper and Copper Alloys by Atmospheric Sulfur Degradation of Metals in the Atmosphere ASTM 1988
- Environmental and Corrosion Data Atmospheric Field Stations Swedish Corrosion Institute 1977
- Garcia J Corrosion Protection of Copper-Brass Radiators through the Electrocoating Process SAE Technical Paper Series C496/070 SAE-VTMS 1995
- Copper and Brass Radiators Surpass 10-Year Corrosion-Resistance Goal
- Ainali M Ten-Year Copper/Brass Radiator Helsinki Univ. of Technology 1998
- Symniotis E Corrosion Resistance of Polymer Coated Copper - Preliminary Study Using EIS and ESCA Stockholm 1995
- Oravitz J Cathodic Epoxy Electrocoat for Automotive Radiators Electrocoat '96 Conference Proceedings Orlando FL, USA 1996
- Ainali M Sundberg R Miner D.K Electro coating of Car Radiators - A Way to Improve Corrosion Resistance SAE Technical Paper Series 931108 SAE-VTMS 1993
- Cu International Copper Association, ICA New York, NY, USA