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US 11,287,078 B2Granted
Method for producing a double-walled pipe and a double-walled pipe
AssigneeH. Butting GmbH & Co. KG
InventorThomas Schüller
Life of this patent
Estimating the term…
Abstract
The application relates to a method for producing a double-walled pipe (1) and a pipe (1) of this type, having 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).
Claims6
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.
1 more element
Dependencies are inferred from the claim text.