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State-of-the-Art Copper/Brass Radiator at Nippondenso Part 2. High Corrosion Resistive Fin for New Radiator
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English
Abstract
As a part of a project to develop high performance, compact and lightweight vehicle radiators, a highly corrosion resistive fin has been developed, especially for use in the salt-laden environment. It is a thin plate with a mutual diffusion layer of Cu-Zn formed on either surface. Owing to this composite structure, not only the corrosion resistance is double that of Cu-Sn alloy fins that are currently in use with a thickness over 20% smaller than the latter (38 μm vs 50 μm), but the corrosion of the bonding solder has been reduced to one half because the Cu-Zn diffused layer has brought about substantial reduction in the fin's surface potential.
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Citation
Takada, K., Iwai, Y., Nagara, T., Susa, S. et al., "State-of-the-Art Copper/Brass Radiator at Nippondenso Part 2. High Corrosion Resistive Fin for New Radiator," SAE Technical Paper 900406, 1990, https://doi.org/10.4271/900406.Also In
References
- Ohta K. Takagi K. Kawai M. Hanai M. Hiramatsu M. “Development of Compact and High Performance Vehicle Radiators and a Flexible Random Automatic Manufacturing System for Them,” Jnl. Jpn. Inst. Mech. Eng. 88 798 1985
- Suda H. Ohyama Y. Shibata N. Omata K. Horikawa H. Sato N. Shiga; S. “Development of a Quantitative Acceleration Test for Automobile Radiator Fins under Salt Attack and a Corrosion Resistive Alloy for Thin Fin,” Furukawa Denko Jiho 77 1984 19 28
- Sasaki G. Nomoto A. Nishiyama S. Ohtani N. Sugino A. “Corrosion Resistive Oxygen Free Copper Strips for Radiator Service,” Hitachi Densen 4 1984 59 64
- Sundberg R. Holm R. Hassel L. “Corrosion and Corrosion Protection of Automotive Heat Exchangers-Comparison between Copper/Brass and Aluminum,” SAE Techn. Paper Ser. 870181