Heat processing technology for vanadium and niobium-containing steel for motor train unit axle

The invention relates to a heat processing technology for vanadium and niobium-containing steel for a motor train unit axle. The heat processing technology includes the following steps of 1, primary quenching, wherein the vanadium and niobium-containing steel for the high-speed motor train unit axle...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	Su Shihuai, Gong Zhixiang, Gao Haichao, Wang Kaizhong, Du Songlin, Sun Wei, Wu Lin
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS 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 TREATMENT OF ALLOYS OR NON-FERROUS METALS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to a heat processing technology for vanadium and niobium-containing steel for a motor train unit axle. The heat processing technology includes the following steps of 1, primary quenching, wherein the vanadium and niobium-containing steel for the high-speed motor train unit axle is heated to 870-900 DEG C, the heating and heat-preserving time in the temperature section is calculated by the ratio of 1.5-2.0 min/mm, and then the steel is water-cooled to room temperature; 2, secondary quenching, wherein the vanadium and niobium-containing steel for the high-speed motor train unit axle is heated to 850-880 DEG C, the heating and heat-preserving time in the temperature section is calculated by the ratio of 1.5-2.0 min/mm, and then the steel is cooled; 3, tempering, wherein the vanadium and niobium-containing steel for the high-speed motor train unit axle is heated to 620-680 DEG C, the heating and heat-preserving time in the temperature section is calculated by the ratio of 2-2.5 min/mm, and t