Quenching and tempering heat treatment process for improving flaw detection clutters of 2Cr13 rotor

The invention relates to a quenching and tempering heat treatment process for improving flaw detection clutters of a 2Cr13 rotor. The process comprises the following steps: primary quenching: adopting a pit type heating furnace for production at the furnace temperature of less than or equal to 500 D...

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Bibliographische Detailangaben
Hauptverfasser:	LEI CHONG, ZHOU PENG, LI YUBIAO, WANG XUESONG, ZHENG ANXIONG, LI ZHANHUA, SHUANG WEIPENG, ZHANG QIAOHUAN
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 relates to a quenching and tempering heat treatment process for improving flaw detection clutters of a 2Cr13 rotor. The process comprises the following steps: primary quenching: adopting a pit type heating furnace for production at the furnace temperature of less than or equal to 500 DEG C, heating to 550-700 DEG C at the speed of less than or equal to 50 DEG C/h-100 DEG C/h, preserving heat for 3-6 hours, heating to 980-1040 DEG C at the speed of more than or equal to 100 DEG C/h, preserving heat for 5-30 hours, discharging and cooling; high-temperature tempering: heating to 550-750 DEG C at the furnace temperature of less than or equal to 450 DEG C at the speed of less than or equal to 50 DEG C/h-100 DEG C/h, preserving heat for 10-40 hours, discharging, performing oil cooling, and performing air cooling to the room temperature after oil cooling to 300-400 DEG C of a workpiece; secondary quenching: heating to 550-700 DEG C at the furnace temperature of less than or equal to 500 DEG C at the sp