Cold heading machining method for plug screw of fire valve

The invention relates to a cold heading machining method for a plug screw of a fire valve. The method is characterized by comprising the following steps of 1) blanking: cutting a metal material as required; 2) cold heading: putting the metal material in a first die to punch cylindrical steps at two...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	FENG JIANGZHOU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	COMBINED OPERATIONS MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR OTHER WORKING OF METAL PERFORMING OPERATIONS TRANSPORTING UNIVERSAL MACHINE TOOLS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Schreiben Sie den ersten Kommentar!