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Browse Prior Art Database

Prevention of Corrosion

IP.com Disclosure Number: IPCOM000074435D
Original Publication Date: 1971-Apr-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Phipps, PB: AUTHOR

Abstract

Corrosion of metals is prevented, or greatly decreased by circulating the ambient atmosphere through a special filter to remove corrosive gases. The filter contains a large area of copper based material which has been treated to accelerate tarnishing. Tarnishing can be accelerated by (a) heating the filter to above 120 degrees C, (b) flexing the surface to crack off protective layers, and (c) doping the copper with a decay accelerator such as tin, zinc, cadmium, calcium, or iron. The copper may be regenerated by hydrogen.

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Prevention of Corrosion

Corrosion of metals is prevented, or greatly decreased by circulating the ambient atmosphere through a special filter to remove corrosive gases. The filter contains a large area of copper based material which has been treated to accelerate tarnishing. Tarnishing can be accelerated by (a) heating the filter to above 120 degrees C, (b) flexing the surface to crack off protective layers, and
(c) doping the copper with a decay accelerator such as tin, zinc, cadmium, calcium, or iron. The copper may be regenerated by hydrogen.

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