Manufacturing method of 630 DEG C ultra-supercritical unit G115 large-caliber thick-wall seamless hot-pressing reducing pipe and reducing pipe

The invention relates to the technical field of metal material machining. The invention discloses a manufacturing method of a 630 DEG C ultra-supercritical unit G115 large-caliber thick-wall seamlesshot-pressing reducing pipe, which comprises the following steps: a straight pipe blank is pressed to...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GAO XUEYING, ZHANG ZHIBO, GAO SHAOLIANG, GAO FENG, LI WEIMIN, GAO WENXING, CHENG WANLIN, YU MINYING, GAO YANSONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING
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