Heating process control method for inhibiting pressing-in of thin SPA-H oxide scale

The invention discloses a heating process control method for inhibiting pressing-in of thin SPA-H oxide scale. The method comprises the following steps that a continuous casting blank passes through a preheating section, a heating section and a soaking section in a heating furnace in sequence; in th...

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Hauptverfasser:	GENG WEI, LU HUANYOU, LIANG WUSAN, CHEN SHUAI, ZHANG JINWANG, SU JINCHAO, ZHAO ZHONGYUN, CHEN TINGLONG
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 METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention discloses a heating process control method for inhibiting pressing-in of thin SPA-H oxide scale. The method comprises the following steps that a continuous casting blank passes through a preheating section, a heating section and a soaking section in a heating furnace in sequence; in the preheating section, the continuous casting billet is preheated to 700 DEG C or above, and if the charging temperature of the continuous casting billet is larger than or equal to 400 DEG C, the continuous casting billet needs to be preheated to 750 DEG C or above; the heating section comprises a first heating section, a second heating section and a third heating section; the continuous casting billet is heated to 1180-1210 DEG C in the first heating section, the continuous casting billet is heated to 1260-1280 DEG C in the second heating section, and the continuous casting billet is heated to 1280-1300 DEG C in the third heating section; and in the soaking section, soaking heat preservation is conducted on the hot