TOOL SET FOR EXTRUDING STRIP Russian patent published in 1997 - IPC

FIELD: plastic metal working. SUBSTANCE: tool set for making large-width strip includes container, injection plunger, builtup die in the form of round die-insert and needle mounted by means of holder on the same base in such a way that hole of die is in the form of segment of annular gap between working surfaces of said die-insert and needle. Axis of that segment is shifted relative to axis of said container. All members of builtup die are worked in all-purpose metallurgical machines. Life period of such die is equal at least to doubled life period of known dies as worn working profiles are changed by new unworn profiled portions of said die-insert and needle due to rotation of both around their axis. EFFECT: lowered manual labor consumption at making builtup die, increased life period of the whole tool. 2 dwg