Cold rolling roller with ultra-deep hardening layer and manufacturing method of cold rolling roller

The invention discloses a cold rolling roller with an ultra-deep hardening layer and a manufacturing method of the cold rolling roller. The cold rolling roller comprises, by mass, 0.85%-0.95% of C, 0.60%-0.80% of Si, 0.60%-0.80% of Mn, 4.80%-5.80% of Cr, 0.30%-0.50% of Ni, 0.40%-0.60% of Mo, 0.05%-0...

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Bibliographische Detailangaben
Hauptverfasser:	SUN MANCHEN, CUI CONGCONG, SU JUNXIN, YANG YUDONG, GAO XINSHENG, ZHU XUEGANG, MIAO JINPING, GE XIAOHONG, HAN WEIGUO
Format:	Patent
Sprache:	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 MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS PUNCHING METAL ROLLING OF METAL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The invention discloses a cold rolling roller with an ultra-deep hardening layer and a manufacturing method of the cold rolling roller. The cold rolling roller comprises, by mass, 0.85%-0.95% of C, 0.60%-0.80% of Si, 0.60%-0.80% of Mn, 4.80%-5.80% of Cr, 0.30%-0.50% of Ni, 0.40%-0.60% of Mo, 0.05%-0.15% of V, 0-0.015% of P, 0-0.015% of S, and the balance Fe and inevitable impurities. The manufacturing method of the cold rolling roller comprises the process steps of smelting quenching and tempering, finish heat treatment and the like. The surface hardness of the manufactured cold rolling roller is 92-99 HSD, the hardening layer with the hardness being over 90 HSD is over 45 mm in depth, and the cold rolling roller is provided with the ultra-deep hardening layer.