Method for producing a double-walled pipe and a double-walled pipe
AssigneeH. Butting GmbH & Co. KG
InventorThomas SCHÜLLER
Life of this patent
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Abstract
The application relates to a method for producing a double-walled pipe (1) and a pipe (1) of this type, hating an outer pipe (3) which is press-fitted with an inner pipe (2) consisting of a corrosion-resistant alloy, wherein an adhesive (4) is inserted at least in regions between the outer pipe (3) and the inner pipe (2) wherein, after adhering the inner pipe (2) with the outer pipe (3), the inner pipe (2) and the adhesive layer (4) are removed at the pipe ends, and the inner side of the outer pipe (3) is plated via an integral connection with the inner pipe (2).
Claims14
A method for producing a double-walled pipe having an outer pipe that is pressed together with an inner pipe made of a corrosion-resistant alloy, comprising:
- wherein an
- introducing an adhesive at least in certain regions between the outer pipe (3) and the inner pipe for adhesive bonding of the inner pipe to the outer pipe;
- removing the inner pipe at pipe ends of the inner pipe and removing an adhesive layer of the adhesive at the pipe ends of the outer pipe;
- and
- plating an inside of the outer pipe to form material-bonded connection with the inner pipe.
A double-walled pipe, comprising:
- an outer pipe that is pressed together with an inner pipe;
- an adhesive arranged at least in certain regions between the outer pipe and the inner pipe;
- and
- a weld-plating that connects the outer pipe to the inner pipe in a material-bonded manner, wherein the weld-plating is applied at pipe ends of the outer pipe.
Dependencies are inferred from the claim text.