Manufacturing method of G115 large-diameter thick-wall seamless hot-pressed elbow of ultra supercritical unit of 630 DEG C and elbow

The invention relates to the technical field of metal material machining, and discloses a manufacturing method of a G115 large-diameter thick-wall seamless hot-pressed elbow of an ultra supercriticalunit of 63DEG C. The manufacturing method comprises the steps that a straight pipe blank is pressed a...

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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 BLASTING CHEMISTRY ENGINEERING ELEMENTS AND UNITS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PIPES PUNCHING METAL SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to the technical field of metal material machining, and discloses a manufacturing method of a G115 large-diameter thick-wall seamless hot-pressed elbow of an ultra supercriticalunit of 63DEG C. The manufacturing method comprises the steps that a straight pipe blank is pressed and machined to obtain a prefabricated elbow; the straight pipe blank is a G115 large-diameter thickwall seamless steel pipe of the ultra supercritical unit of 630DEG C; and the prefabricated elbow is subjected to hot treatment to obtain the elbow. According to the provided method of the G115 large-diameter thick-wall seamless elbow of the ultra supercritical unit of 630DEG C, the obtained elbow by manufacturing has good mechanical properties, uniform size, uniform thickness and no defects in appearance, and can be applied to different fields, such as ultra supercritical boiler, power plant four major pipelines. 本申请涉及金属材料加工技术领域。本申请公开了一种630℃超超临界机组G115大口径厚壁无缝热压弯头的制造方法，将直管管坯压制加工，得到预制弯头；直管管坯为630℃超超临界机组G115大口径厚壁无缝钢管；将预制弯