Hot extrusion die for hob cutter ring of shield tunneling machine and die manufacturing method of hot extrusion die

The invention discloses a hot extrusion die for a hob cutter ring of a shield tunneling machine and a die manufacturing method of the hot extrusion die, and belongs to the technical field of hot extrusion dies. Comprising an upper die, a lower die, a lower connecting plate, a die core, a pressure he...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LI FEI, ZHAO GUORONG, HE MIN, CAI YUNXIU, LI YONGKUN, LI DOU, LU DEHONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING
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