Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1985-05-03
1987-08-18
Godici, Nicholas P.
Metal founding
Process
Shaping liquid metal against a forming surface
164 98, 164108, 164112, 164114, 164286, 164290, 164333, B22D 1300, B22D 1900
Patent
active
046870440
ABSTRACT:
A centrifugal injection machine comprises a rotor arm bearing at each of a pair of free ends a pivotably mounted container. A holder which retains a multiplicity of workpieces is insertable into a capsule or cavity within each container. The rotary arm contains a reservoir associated with each container or liquifying a charge of material. Upon rotation of the machine at a high velocity, the liquified material is transferred from the reservoir to the container in a vacuum and is pressurized therein as a result of centripetal acceleration. Upon the termination of a predetermined interval, a trip mechanism is activated to rotate the containers so that the molten liquid which has not been injected under pressure into recesses in the workpieces is ejected or discharged from the containers. The containers rotate within a vacuum chamber which is depressurized prior to the centrifuge operation.
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patent: 4353957 (1982-10-01), Rutt et al.
patent: 4510987 (1985-04-01), Collot
Godici Nicholas P.
Seidel Richard K.
TAM Ceramics, Inc.
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