236. Lightweight Foam Packaging of Electronic Equipment


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J A Meyer, H Shapiro: 236. Lightweight Foam Packaging of Electronic Equipment. 1959.



This paper presents practical methods for using urethane foam plastic as a light weight packaging material for electronic equipment. Basic cooling theory and concepts which employ the plastic are discussed. Chemistry of the urethanes and the reactions of the foaming process are presented. The following techniques are discussed; handling and reacting of the foams, injection of foam into the equipment, quantity calculations, and precautions to be exercised. Practical examples and applications of air cooled foam chassis and toroids are shown.


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