Process for the manufacture of a mineral-insulated socket
Provided is a process for the manufacture of a mineral-insulated socket, especially as a module for the manufacture of an electrical feedthrough and especially for use in an exhaust gas duct of a motor vehicle. The mineral-insulated socket has a metallic inner part arranged in a metallic outer pipe and electrically insulated from this metallic outer pipe by an electrically insulating, mineral material. In a process, the metallic inner part, the electrically insulating material, and the outer pipe are compressed to form a composite and in a subsequent step, the mineral-insulated socket is produced by removing at least one complete section of the compressed composite.
1 . A process for manufacturing a mineral-insulated socket for a module of an electrical feedthrough of an exhaust gas duct of a motor vehicle, the mineral-insulated socket comprising:
a metallic inner part arranged in a metallic outer pipe and electrically insulated from the metallic outer pipe by an electrically insulating mineral material, the metallic inner part comprised of a pipe, characterized in that, in a process of constructing the mineral-insulated socket, in one step the metallic inner part, the electrically insulating material, and the outer pipe are compressed to form a composite and in a subsequent step the mineral-insulated socket is produced by removing at least one complete section of the compressed composite, the pipe being filled with a core during the compression, the core being removed after the compression of the composite.
2 . The process according to claim 1 , wherein the composite is a bar stock material.
3 . The process according to claim 1 , wherein the metallic inner part used for the manufacture of the compressed composite is solid.
4 . The process according to claim 1 , wherein parts of the outer pipe of the mineral-insulated socket are removed, so that the outer pipe has multiple outer pipe sections electrically insulated from each other.
5 . A process for manufacturing a mineral-insulated socket for a module of an electrical feedthrough of an exhaust gas duct of a motor vehicle, the mineral-insulated socket comprising:
a metallic inner part arranged in a metallic outer pipe and electrically insulated from the metallic outer pipe by an electrically insulating mineral material, characterized in that, in a process of constructing the mineral-insulated socket, in one step the metallic inner part, the electrically insulating material, and the outer pipe are compressed to form a composite and in a subsequent step the mineral-insulated socket is produced by removing at least one complete section of the compressed composite, the process further includes the step of forming an opening in the metallic inner part, the opening being formed in the metallic inner part before the removal step, wherein the opening is formed as a blind hole in the metallic inner part.
6 . The process according to claim 5 , wherein the opening is formed in the metallic inner part such that the opening completely penetrates through the metallic inner part.
7 . The process according to claim 5 , wherein an additional opening is formed in the metallic inner part from an opposite side relative to the opening, such that a separating wall remains in the metallic inner part between the opening and the additional opening.
8 . The process according to claim 5 , wherein the opening is formed concentric to a pipe center axis of the outer pipe.