Micro-deformation stress relief annealing process for precise cold-drawn seamless tube

The invention discloses a micro-deformation stress relief annealing process for a precise cold-drawn seamless tube, which comprises the following steps: carrying out rough shaping on a cold-drawn seamless tube, carrying out annealing treatment on the seamless tube subjected to rough shaping, and car...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	WEI JINYU, LIU XIANCUI, LIU YANG, WANG JIACONG, LIU QINGJIAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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