Browse Prior Art Database

Machine Covers of Structural Foam

IP.com Disclosure Number: IPCOM000052415D
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Diercks, GL: AUTHOR [+4]

Abstract

Machine covers for data processing equipment can be made from a plasti material, such as polycarbonate structural foam.

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Machine Covers of Structural Foam

Machine covers for data processing equipment can be made from a plasti material, such as polycarbonate structural foam.

Machine covers are designed with appearance in mind. However, other points should also be considered. By changing the covers from sheet metal to polycarbonate structural foam, several technical advantages are accomplished. First, the aesthetic appearance is improved because flowing lines are possible in a mold, and a great deal of detail can be included at a low cost. The mold also gives a textured finish without further operations. Secondly, a lighter frame construction is practical because less weight is required for the same rigidity in the covers. This results in lower frame and transportation costs. Third, a better sound deadening characteristic is achieved from the cellular construction of the foam. Fourth, a safety quality above sheet metal results since the chance of electrical shock is reduced.

Polycarbonate structural foam parts are made by injecting polycarbonate with a foaming agent through an injection press into a mold. The average cycle time for this process is approximately two minutes, considerably less than the time required to make the same part from sheet metal.

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