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AssigneeSumitomo Rubber Industries, Ltd.
InventorsTohatirou Sakon, Ikuo Oyobe
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A method for restoration and re-utilization of discharged gas for use in a vulcanization employing inert gas in part of the vulcanization of elastomer products, which includes the steps of restoring a mixture of used inert gas discharged from a vulcanizing unit and vulcanizing medium for steam separation thereof, subjecting the elastomer product mounted in a metal mold to a preshaping by supplying the inert gas obtained by the steam separation to the vulcanizing unit prior to starting of the vulcanization, and subjecting the inert gas obtained by the steam separation to supplementary pressurization by inert gas obtained from an inert gas generating unit when the inert gas is to be supplied to the vulcanizing unit, and also an arrangement for carrying out the above method in an efficient manner.
A method for the restoration and re-utilization of discharged gas for use in vulcanization employing an inert gas in part of the vulcanizing steps of elastomer products, which comprises the steps of restoring a mixture of used inert gas discharged from a vulcanizing unit and vulcanizing medium for steam separation thereof, subjecting the elastomer product mounted in a metal mold to a preshaping by supplying the inert gas obtained by the steam separation to the vulcanizing unit prior to starting of the vulcanization, and subjecting said inert gas obtained by said steam separation to supplementary pressurization by inert gas obtained from an inert gas generating unit when said inert gas is to be supplied to said vulcanizing unit.
An apparatus for the restoration and re-utilization of discharged gas for use in vulcanization employing inert gas in part of the vulcanizing steps of elastomer products, which comprises a high pressure gas recovery line for collecting a mixture of used inert gas discharged from a vulcanizing unit and vulcanizing medium, a steam separator coupled to said high pressure gas recovery line for subjecting said mixture to steam separation, a low pressure gas line for supplying the inert gas obtained by the steam separation to the vulcanizing unit, and a gas supplementary pressure line connecting said low pressure gas line with an inert gas generating unit.
Dependencies are inferred from the claim text.