Melting plant and method
AssigneeALD Vacuum Technologies GmbH
InventorIvaylo POPOV
Life of this patent
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Abstract
Melting plant having a melting chamber which by way of a gas protection hood is separated from the environment, wherein the gas protection hood or another part of the melting chamber encasement has a lead through in which an electrode rod for moving an electrode to be melted is guided in a gas-tight manner by way of a sealing means. Hydraulic or pneumatic equalisation means, for exerting on the electrode rod equalisation forces which are in a proportional correlation with the gas pressure prevailing within the melting chamber are provided so as to compensate for the gas-pressure forces acting on the electrode rod.
Claims11
A melting plant having a melting chamber which by way of a gas protection hood is separated from the environment, wherein the gas protection hood has a lead through in which an electrode rod for moving an electrode to be melted is guided in a gas-tight manner by way of a sealing means,
- wherein hydraulic or pneumatic equalization means, for exerting on the electrode rod equalization forces which are in a proportional correlation with the gas pressure prevailing within the melting chamber are provided so as to compensate for the gas-pressure forces acting on the electrode rod.
The method for operating an electrode melting plant, in which an electrode rod moves an electrode in a melting chamber and the melting chamber is sealed in a gas-tight manner in relation to the environment, a drive unit is disposed outside the melting chamber and drives the electrode rod, the resulting forces on the electrode rod that result both at a positive pressure as well as negative pressure in the melting chamber being equalized by at least one equalization cylinder which in terms of fluid technology communicates with the melting chamber.
Dependencies are inferred from the claim text.