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Variably Heat Conductive Structures

IP.com Disclosure Number: IPCOM000074998D
Original Publication Date: 1971-Jul-01
Included in the Prior Art Database: 2005-Feb-24
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Damm, EP: AUTHOR [+3]

Abstract

Selectively anodized and oil-sealed tin plate is,observed to have higher thermal conductivity than ordinary tin plate and other materials; for instance black paints. This property is useful as the basis of construction of heating/cooling system elements.

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Variably Heat Conductive Structures

Selectively anodized and oil-sealed tin plate is,observed to have higher thermal conductivity than ordinary tin plate and other materials; for instance black paints. This property is useful as the basis of construction of heating/cooling system elements.

For instance, radiating elements of a heat exchanger system can be constructed and solder-welded to a main support structure as follows. The element stock is tin plated and the plating is selectively anodized and oil-sealed, only in areas which will be heat radiating surfaces. Solder bonding areas are masked in the anodization process and only the anodized areas react with the sealing oil (e.g. linseed oil). Since the anodized/sealed areas have higher differential thermal conductivity than the unanodized bonding areas, external heat applied to the element will induce heating, reflow and fusion of the bonding areas to the main structure. Furthermore, internal heat flowing from the main structure to the anodized areas will radiate out efficiently.

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