State-of-the-Art Copper/Brass Radiator at Nippondenso Part 2. High Corrosion Resistive Fin for New Radiator 900406
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.
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. Download Citation