Browse Prior Art Database

Machine Panel

IP.com Disclosure Number: IPCOM000085731D
Original Publication Date: 1976-May-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 18K

Publishing Venue

IBM

Related People

Ghai, BS: AUTHOR [+2]

Abstract

Machine panels consisting of a thin sheet metal outer skin and a rigid polymeric foam inner side exhibit high-mechanical stiffness, together with a probable significant acoustic insulation. Such panels are made by the following process described with reference to the figure.

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Machine Panel

Machine panels consisting of a thin sheet metal outer skin and a rigid polymeric foam inner side exhibit high-mechanical stiffness, together with a probable significant acoustic insulation. Such panels are made by the following process described with reference to the figure.

The outer skin of the machine panel is made from thin sheet steel 1 folded along its edges and coated with a primer having good adhesion to polymeric foam. A separate steel plate 2 coated with a release agent such as a sheet of polyethelene is clamped on the thin sheet 1 to define a mould cavity 3.

The polymeric foam formulation is injected through a small hole 4 until the cavity 3 is filled. After the foam has been cured, or hardened, the plate 2 is removed. Inserts may be placed in the cavity 3 as required to define louvre windows or in areas where foam is not required, for example, where access is required subsequently for spot welding or riveting.

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