Browse Prior Art Database

Expendable Multiple Ring Mold

IP.com Disclosure Number: IPCOM000095596D
Original Publication Date: 1964-Mar-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 39K

Publishing Venue

IBM

Related People

Best, B: AUTHOR [+2]

Abstract

This expendable ring mold 10 consists of a plurality of rings 1, 2 and 3 stacked one on top of the other. Successively adjoining ring portions contain oppositely chamfered ends 14 and 15. The mold is used to produce thick samples at high pressure.

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Expendable Multiple Ring Mold

This expendable ring mold 10 consists of a plurality of rings 1, 2 and 3 stacked one on top of the other. Successively adjoining ring portions contain oppositely chamfered ends 14 and 15. The mold is used to produce thick samples at high pressure.

High pressure molding techniques using single ring molds are limited in the thickness of samples which can be produced. This is because as the height of the mold increases, less and less lateral support is offered by a single ring. The single ring tends to bulge during the compression stage, thus limiting the thickness of the samples.

The expendable ring mold here shown eliminates the lateral bulging of the mold by arranging a plurality of stacked rings 1, 2 and 3. Thus, as pressure device 16 is forced on the rings, they tend to slide laterally along each other. Such action offers continuously increasing lateral support as the sample is compressed such as shown in the right drawing.

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