초록 ▼

A method and die assembly apparatus for extruding filled C-shaped collets over a center filling utilizes a film of air under pressure over the surface of a tube containing the center filling, the air exiting at the die face and carrying excess steam from the collet. The die assembly surrounds the fi

A method and die assembly apparatus for extruding filled C-shaped collets over a center filling utilizes a film of air under pressure over the surface of a tube containing the center filling, the air exiting at the die face and carrying excess steam from the collet. The die assembly surrounds the filling tube and has an adjustable insert acting as a conduit for the air and separating the air from the extrudate until they are at the die face.

대표청구항 ▼

A method of continuously extruding a C-shaped collet around a center filling, the method comprising; (a) continuously forcing and feeding the center filling in cylindrical form into and past an extrusion die zone; (b) continuously and simultaneously extruding an extrudate of C-shell configuration su

A method of continuously extruding a C-shaped collet around a center filling, the method comprising; (a) continuously forcing and feeding the center filling in cylindrical form into and past an extrusion die zone; (b) continuously and simultaneously extruding an extrudate of C-shell configuration surrounding the cylindrical center filling but spaced slightly therefrom at the extrusion die zone; and (c) continuously and simultaneously forming a film of air into the space between the center filling and the C-shaped extrudate at the extrusion die zone so that the film of air carries steam from the C-shaped collet through an opening of the collet.