Extrusion system for use in producing multi-sectional pipe, has pin comprising multiple boreholes that are formed at circumference, where foil is wrapped around pin that is provided in casing tool

摘要

The system has multiple individual modules that are differently combined or individually applicable depending upon the application. One of the modules is a casing tool that exhibits a pin. The pin has an inner channel that is subjected over pressure and continuous till to a flexible bellow. The pin has multiple boreholes formed at a circumference, where a foil is wrapped around the pin. Multiple ribs are arranged on an inner part of the casing tool at the circumference in a distributed manner. An independent claim is also included for a method for producing a multi-sectional pipe.