Heating control method for continuous casting round pipe blank of hydrogen transmission pipeline pipe with diameter phi of 350mm

The invention discloses a heating control method for a continuous casting round pipe blank of a pipeline pipe with the diameter of phi 350mm for conveying hydrogen, the continuous casting round pipe blank with the diameter of phi 350mm for conveying hydrogen is loaded into a heating furnace to be he...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PEI FULI, YU ZEJIN, JIA DONGMEI, ZHANG XINGGANG, MI YONGFENG
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention discloses a heating control method for a continuous casting round pipe blank of a pipeline pipe with the diameter of phi 350mm for conveying hydrogen, the continuous casting round pipe blank with the diameter of phi 350mm for conveying hydrogen is loaded into a heating furnace to be heated, and the control range of the temperature of each section is shown as follows: the temperature of a preheating section is controlled, the temperature of a preheating section I is smaller than or equal to 800 DEG C, the temperature of a preheating section II is 800-950 DEG C, the total heating time of the preheating section is 1 hour, and the time is controlled to be +/-10 minutes; the temperature of the heating sections is controlled, specifically, the temperature of the heating section I is 950-1150 DEG C, the temperature of the heating section II is 1150-1220 DEG C, the total heating time of the heating sections is 1.5 hours, and the time is controlled to be +/-10 minutes; the temperature of the soaking sect