High strength level non-quenched-tempered steel bar for manufacturing of engine rocker and manufacture method thereof

The invention relates to a high strength level non-quenched-tempered steel bar for manufacturing of an engine rocker. The high strength level non-quenched-tempered steel bar for the manufacturing of the engine rocker consists of chemical components of 0.42-0.49% of C, 0.40-0.80% of Si, 0.80-1.50% of...

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Bibliographische Detailangaben
Hauptverfasser:	SUN YIFAN, LI BING, WANG XINSHE, ZHANG LEI, XU XIAOHONG, HUANG ZHEN, DONG JUAN, BAI YUN
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
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Beschreibung
Zusammenfassung:	The invention relates to a high strength level non-quenched-tempered steel bar for manufacturing of an engine rocker. The high strength level non-quenched-tempered steel bar for the manufacturing of the engine rocker consists of chemical components of 0.42-0.49% of C, 0.40-0.80% of Si, 0.80-1.50% of Mn, P=38% and harness>=290HB. The metallographic structure of the rocker forging is tiny ferrite and pearlite structure. MnS inclusions and composite inclusions thereof are distributed in the metallographic structure. The high strength level non-quenched-tempere